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InterDigital

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Employees 201-500
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FY2007 Annual Report · InterDigital
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2 0 0 7   a nnu a l r e port

This is a

green

ANNUAL REPORT
www.GreenAnnualReport.com

™

InterDigital, Inc. saved the following resources 
by producing this Green Annual Report™:

18.78 trees 
preserved for 
the future

54.23 lbs 
water-borne 
waste not 
created

7,977 gals 
wastewater 
flow saved

883 lbs solid 
waste not 
generated

1,738 lbs net 
greenhouse 
gases 
prevented

13,302,075 
million BTUs 
energy not 
consumed

XX%

 
 
 
The Life Inside

We create advanced designs for wireless connectivity that enable today’s 
devices to perform in ways that in the past had seemed improbable. 
InterDigital’s patented inventions and designs are used in every digital  
cellular phone today. We continue to shape the evolution of global standards, 
enhancing the performance of wireless chips, adding new capabilities to 
mobile devices, optimizing wireless networks, and ultimately connecting 
billions of people around the world. Today, we are building on our heritage  
by bringing our cutting-edge SlimChip™ Mobile Broadband Modem solutions 
to the market—the wireless engines that will drive many of tomorrow’s 
exciting new devices used by people all over the world. More than ever, 
InterDigital puts the life inside your phone, your game, your notebook.

1001010110
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0001010001
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0101100101

Modem IP

1001010110
1101010010
0001010001
1110101110
0101100101

1001010110
1101010010
0001010001
1110101110
0101100101

Baseband ICs

Develop your own chip— 
Complete mobile broadband 
2G/3G modem Intellectual 
Property (IP) is proven  
best-in-class technology. 

Design your own mobile device— 
Our high performance modem on 
an integrated circuit (IC) provides 
a flexible wireless engine for any 
mobile broadband device.

Reference 
Platforms

Turn a proven wireless platform 
into your own—Pre-certified 
designs, software, and support 
deliver all the pieces and the 
guidebook—“ready-to-wear”  
or tailored to your own needs.

Corporate Information

AnnuAl Meeting of ShAreholderS 

inveStor relAtionS

Thursday, June 5, 2008 
11:00 a.m. EDT 
Radisson Valley Forge 
1160 First Avenue 
King of Prussia, Pennsylvania

Janet M. Point  
Executive Vice President,  
Communications & Investor Relations 
+1 610.878.7866 
e-mail: janet.point@interdigital.com

CoMMon StoCk inforMAtion

The primary market for InterDigital’s  
common stock is the NASDAQ Global  
Select Market (SM). InterDigital trades  
under the ticker symbol “IDCC”.

CorporAte offiCe And  

developMent fACility

781 Third Avenue 
King of Prussia, PA 19406 USA 
+1 610 878 7800

regiStrAr And trAnSfer Agent

developMent fACilitieS

Shareholders with questions concerning  
stock certificates, shareholder records, account 
information, dividends, or stock transfer should 
contact InterDigital’s transfer agent:

American Stock Transfer and Trust Co. 
Customer Service 
59 Maiden Lane 
New York, NY 10038 USA 
+1 800 937 5449 
www.amstock.com 

independent regiStered  

puBliC ACCounting firM

PricewaterhouseCoopers LLP 
Philadelphia, PA USA

Two Huntington Quadrangle, 4th Floor 
Melville, NY 11747 USA

InterDigital Canada Ltée
1000 Sherbrooke Street West 
10th Floor 
Montreal, Quebec, Canada  
H3A 3G4

WeB Site

www.interdigital.com

trAdeMArkS

InterDigital is a registered  
trademark and SlimChip is a  
trademark of InterDigital, Inc. 
All other trademarks, service marks 
and/or trade names appearing in  
this Annual Report are the property  
of their respective holders.

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Forward Looking Statements: Statements made in the introduction to the annual report and in the letter to shareholders that relate to future plans, events, financial results or performance, including without limitation, statements related to our SlimChip Mobile Broadband Modem solutions, our stock buy-back program, progress on resolution of disputes with key licensees, our media independent handover technology and its adoption within Korea and with other leading operators around the world, potential Infineon 3G chip sales, the completion of licensing deals with the top 5 handset manufacturers and Tier 2 and 3 manufacturers, the potential for increased revenue from our SlimChip Baseband IC sales and Modem IP licenses, the adoption of our inventions in worldwide leading standards bodies (especially in next generation technologies such as LTE, 4G and 802), our contributions to security technologies for wireless transmission, levels of operating profit, positive cash flow, our participation in evolving technology, our efforts to target and sell and/or license our IP to manufacturers of data cards and our 
 
 
 
 
1001010110

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Attractive Market

Excited Customers

With annual shipments exceeding  
1 billion units, the mobile device market 
offers significant opportunity to deliver 
value from both patented inventions 
and technology offerings.

At the end of the day, our expertise in 
envisioning and designing wireless 
connectivity puts the life inside your 
mobile device, giving you the ability  
to enjoy a rich mobile experience.

ability to develop power-efficient architectures that can be reconfigured for multiple air interfaces are forward-looking statements as defined under the Private Securities Litigation Reform Act of 1995. These statements are based upon current goals, estimates, information and expectations. Actual results may differ materially from those anticipated as a result of certain risks and uncertainties, including delays, difficulties, changed strategies, or unanticipated factors affecting the implementation of the company’s plans. You should carefully consider the risks and uncertainties outlined in greater detail in the accompanying Form 10-K, including “Item 1A –Risk Factors.” before making any investment decision with respect to our common stock. You should not place undue reliance on these forward-looking statements, which are only as of April 11, 2008. We undertake no obligation to revise or publicly update any forward-looking statement for any reason, except as otherwise required by law. Financial Highlights

Years ended December 31, 
(in thousands, except per share data)

2007 

2006 

2005

Total revenue 

$234,232 

$480,466 

$163,125

Income from operations 

23,054 

336,416 

17,087

Net income applicable to common shareholders 

20,004 

225,222  

54,685

Net income per common share—diluted 

0.40 

4.04 

0.96

Total cash, cash equivalents and  

  short-term investments 

177,467 

263,966 

105,708

Total assets 

534,885 

564,075 

299,537

Total shareholders’ equity 

137,067 

275,476 

174,314

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Over $1.5 billion in 
cash generated from 
patent licensing

Leading Brands License Our Patents

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Returned over $400 million to 
shareholders via stock buybacks 
over the past three years

Recurring Revenues

Share Repurchases

(in millions)

$250

(i n mil li ons)

$200

200

150

100

50

0

150

100

50

0

2005 

2006  2007

2005  2006 

2007

Technology Solu tio ns

Recurring Royaltie s

Greetings Fellow Shareholders

During 2007, we strengthened all  
critical aspects of our business. 
We significantly matured our patent 
licensing business, successfully 
brought our SlimChip family of  
mobile broadband modem solutions  
to market, and continued to create 
new inventions defining the wireless 
world of tomorrow.

Financially, we turned in another very 
solid year in 2007 reporting net income 
of $20.0 million, or $0.40 per diluted 
share. Recurring patent licensing 
revenues were $216.1 million posting an 
increase of $10.0 million over 2006. Total 
revenues of $234.2 million compared to 
$480.5 million in 2006 decreased due 
to the inclusion of $253.0 million 
and $12.0 million related to the 
resolution of matters with Nokia 
and Panasonic, respectively, in 
2006’s results. 

We also continued to maintain a  
very strong balance sheet. We ended 
the year with $177.5 million in cash 
and short-term investments, which 
represents $3.59 per share. Our  
free cash flow for the full year  
2007 was $91.3 million.

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Based on our strong balance sheet and 
our high level of confidence in our ability 
to build value, our Board of Directors 
authorized a new $100 million common 
stock repurchase program in fourth 
quarter 2007. That program is in addition 
to the completion of a $350 million 
authorization during first half 2007.

PATENT LICENSING
Throughout the year, we made 
progress in establishing the validity and 
defensibility of our intellectual property 
rights and expanded the patent portfolio. 
We added some very high quality 
licensees, including the makers of the 
popular iPhone and BlackBerry devices, 
and greatly improved our position in 

the market through a number of 
successes in the defense of our 
patents. We also continued  
to enhance the strength of  
our internal licensing team.

Today, our patent license agreements 
cover about one-third of the 3G market. 
We remain committed to expanding our 
market coverage through licensing the 
top 5 handset manufacturers and adding 
licenses with the other established 
and emerging mobile device makers. 
Towards that end, we are pressing 
forward both on reaching resolution 
with some key potential licensees, and 
in defending our patents at the ITC. 

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STEP ONE
Inventing Wireless 
Technologies
For over 35 years, we  
have created digital cellular 
modem designs for the 
wireless engine in billions of 
mobile phones used today, 
and for the exciting mobile 
devices of tomorrow. 

STEP TWO
Contributing to 
Standards
We are key contributors to 
the leading standards bodies 
for 2G, 3G, 4G, and beyond to 
wireless LAN and initiatives 
on mobility solutions for 
converged devices, offering 
working, innovative solutions.

STEP FOUR
Developing Products
We offer complete mobile 
broadband modem solutions 
in the form of complete 
modem IP, baseband chips, 
and pre-certified reference 
platforms.

STEP THREE
Licensing Patents
We are highly successful 
in licensing our patented 
technologies to leading 
manufacturers. Our 
patents have generated 
over $1.5 billion.

MOBILE BROADBAND  
MODEM PRODUCTS
2007 was a strong year for our product 
business. Among our successes, we:

  Developed our family of SlimChip 
Mobile Broadband Modem products. 
Our ongoing customer field trials are 
proceeding exceptionally well and  
we already signed a key 3G technology 
license agreement for our SlimChip 
Broadband IP with a leading Asian 
fabless semiconductor company. 

  Completed the delivery of our  
HSDPA technology to NXP for 
integration into their chipset, which 
they showcased at the 2008 Mobile 
World Congress in February. 

  Extended our strategic  
relationship with SK Telecom in  
Korea involving our media 
independent handover 
technology— a leading-edge 
solution that provides seamless 
mobility between devices using 
different air interface technologies, 
such as WCDMA, WiBro, WiMax, or 
WiFi. SK Telecom has plans to promote 
the adoption of this solution within 
Korea and with other leading operators 
around the world.

  Continued our strong technical 
cooperation with Infineon on the  
3G protocol stack for use in their  
3G chipsets. We also are very 

encouraged by their opportunities  
for 3G chip sales this year, which will 
generate additional royalties for us.

  Generated some promising 
innovations in core wireless and 
related strategic technologies for 
the next generation and beyond. We 
continued to have our innovations 
accepted into the next releases of 
cellular systems, mainly 3GPP WCDMA 
improvements to 3G and LTE for 4G, 
as well as in some very important 
emerging 802 technologies.

While it has taken significant investment 
on our part, we are successfully hitting 
our milestones and are engaging in 
valuable dialog with prospects around 
the world. 

We delivered solid earnings and 
positive cash flow in 2007 while 
making sizable investments both in 
defending our intellectual property 
and in bringing our product platform to 
market. This was deliberately planned, 
carefully managed and we delivered the 
results that we expected.

GREAT EXPECTATIONS FOR 2008
Our principal goal for 2008 is  
completing licensing deals with top 
5 handset manufacturers, while also 
securing licenses with Tier 2 and 3 
manufacturers. By year end, we also 
would like to generate increased  
product revenue contributions from  
our SlimChip Baseband IC sales and 
Modem IP licenses.

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With over 35 years of designing pioneering digital 
wireless modems, InterDigital’s technologies are the 
powerful wireless engines used in every cellular phone 
today. We continue to build and design the technologies 
that will drive wireless connectivity in the future.

Similar to past years, we will also  
have the goal to drive the adoption  
of our inventions worldwide. We  
will continue to focus on the next 
generation technologies for cellular 
systems, most importantly LTE. We are 
also moving forward with some of 
the security technologies that we 
have been incubating over the past 
three years. 

Lastly, on the financial side, we continue 
to have very high expectations given the 
significant amount of operating leverage 
in our business model. With success in 
licensing one or more of the top 5, we 
expect to see a significant increase in 

the level of operating profit and positive 
cash flow, as the results of those deals 
should go directly to the bottom line.

All of that, we believe, spells a  
very bright future for InterDigital.  

Last year was largely a year of 
investment as we positioned 
ourselves to deliver significant 
value from the 3G market.  
In 2008, we are working to 
generate significant returns from 
those investments.

Thank you for your continued  
support as we head into a very  
important year for us.

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Harry G. Campagna 
Chairman of the Board

William J. Merritt
President and 
Chief Executive Officer

 
 
Mobile Broadband Everywhere

We believe — as do other visionaries 
—that this is only the beginning  
and only our imagination will be the 
limit. InterDigital is well positioned to 
capitalize on this exciting future — helping 
to define the core system architectures 
that connect the world without wires. 
Our inventions and products power 
the wireless engine inside your mobile 
device. We continue to be among the 
industry pioneers in bringing mobile 
broadband to the masses, pushing 
higher data rates, increasing network 
capacity, improving power consumption, 
and extending coverage. Mobile 
Broadband Everywhere.

It would be hard to imagine a world 
without mobile phones. Indeed, over 
one billion devices shipped last year  
and over three billion subscribers are  
on a wireless network. Today, the 
wireless industry is changing faster  
than ever before with new technologies, 
products, applications, and services 
being introduced daily. In a growing 
number of countries, wireless devices 
now outnumber wired telephones. 
Every day, billions of text messages are 
exchanged over wireless devices. Far 
beyond voice calling and texting, today’s 
wireless devices offer video streaming, 
interactive gaming, music downloads, 
and surfing the internet which is quickly 
becoming common place, in any place.

Global Handset Sales  
by Technology (1)

1,500

1,000

500

0

2006 

2007 

2008 

2009 

2010 

2011 

2012

3G (WCDMA)(2) 

3G (CDMA)(3) 

2G/2.5G(4) 

Total 

92 

160 

747 

999 

167 

170 

785 

240 

188 

783 

344 

201 

731 

457 

204 

645 

590 

208 

542 

735

211

409

1,122 

1,211 

1,276 

1,306 

1,340 

1,355

(1)  Source: Strategy Analytics, Inc. July 2007. Data for 2007 through 2012 represents estimates of handset sales.
(2)  Includes: WCDMA/HSPA, LTE, and TD-SCDMA.
(3)  Includes: cdma2000 and its evolutions, such as EV-DO.
(4)  Includes: GSM/GPRS/EDGE and Analog, iDEN, TDMA, PHS and PDC.

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Mobile Broadband Modem Solutions

Early in 2008, we unveiled our SlimChip 
family of high performance mobile 
broadband solutions with HSDPA  
and HSUPA capabilities. 

The set of SlimChip products includes:
 high performance baseband ICs
 broadband modem IP, and 
 complete reference platforms 

InterDigital’s SlimChip products feature 
a “slim” modem architecture where the 
modem— which provides core wireless 
connectivity— is separated from the 
applications processor and peripheral 
functions. This approach allows mobile 
device manufacturers to customize the 
pre-certified modem — quickly and 
cost-effectively — to specific mobile 
broadband devices such  
as data cards, smart phones,  
or other mobile devices. 

We are targeting data card 
manufacturers with our baseband chips. 
Several recent industry reports project 
strong growth for mobile broadband 
devices such as data cards, notebooks, 
and ultra mobile PCs. In addition, we 
bring our advanced modem IP to  
market through relationships with 
semiconductor manufacturers. In  
first quarter 2008, we licensed our 3G 
modem technology to a leading Asian 
fabless semiconductor company, giving 
us a strong foothold at the very heart of 
the world wireless industry. In addition 
to this new relationship, our SlimChip 
solutions generated a great amount of 
interest at the Mobile World Congress  
in Barcelona in February as a very 

attractive way to participate in the 
rapidly growing market for mobile 
broadband devices.

“ In our performance tests there were seven solutions from six companies that we tested 
at Category 6 HSDPA (3.6 Mbps), and six solutions from three companies that we 
tested at Category 8 HSDPA (7.2 Mbps). InterDigital’s solution performed very  
well in the Category 8 tests, and its best results seemed to occur in more challenging 
network conditions. With further optimization of its solution, InterDigital’s 
SlimChip Reference Platform should be strongly positioned to compete for  
design wins within the embedded and external communications modem market.”

Michael Thelander
Founder and CEO of Signals Research Group,  
commenting on InterDigital’s SlimChip  
performance results in independent field testing.

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The SlimChip Mobile Broadband 
Modem features InterDigital’s 
advanced receiver technology with 
receive diversity, delivering superior 
interference mitigation and higher 
data rates and better coverage, 
especially at the cell-edge.

SlimChip Mobile Broadband Modems 
deploy advanced power-saving 
techniques, including the use of 
hardware accelerators to reduce 
MIPS in the ARM processor, voltage 
islands and optimum clock gating.

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100101011011010100100001010001111010111001011001011001010110110101001000010100011110101110010110010110010101101101010010000101000111101011100101100101On The Horizon

Our pioneering work in developing designs 
for wireless connectivity has helped to build 
a substantial portfolio of patented inventions. 
Today, our talented engineers are making 
contributions to the leading standards bodies 
for 3G improvements, LTE, 4G, and 802, 
while also enhancing mobility among the 
ever-increasing variety of air interfaces.

We are actively researching cooperative 
communication technology where  
terminals work together to improve  
network performance. This exciting area 
promises to further increase data rates, 
capacity, and coverage beyond the  
advanced coding, MIMO, and OFDM 
techniques that are nearing maturity. 

Everyone must have confidence in 
the security and integrity of their 
data and transactions on wireless 

devices for mobile commerce to 
flourish. We are on the leading edge  
of inventing unique enhanced security 
methods that will protect a wireless 
device, its data, and software from 
tampering, viruses, and other 
unauthorized access. 

We are developing innovative mobile 
terminal architectures drawing on 
Software Defined Radio (SDR) 
technology to achieve the lofty goal of  
a cost- and power-efficient device that 
can be re-configured for multiple air 
interfaces. Looking further into the 
future, we see Cognitive Radio 
technology that promises to use the 
flexibility of a smart terminal to adapt 
the radio and network configuration 

to, for example, better utilize 
spectral “white space.”

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The Life Inside

We create advanced designs for wireless connectivity that enable today’s 
devices to perform in ways that in the past had seemed improbable. 
InterDigital’s patented inventions and designs are used in every digital  
cellular phone today. We continue to shape the evolution of global standards, 
enhancing the performance of wireless chips, adding new capabilities to 
mobile devices, optimizing wireless networks, and ultimately connecting 
billions of people around the world. Today, we are building on our heritage  
by bringing our cutting-edge SlimChip™ Mobile Broadband Modem solutions 
to the market—the wireless engines that will drive many of tomorrow’s 
exciting new devices used by people all over the world. More than ever, 
InterDigital puts the life inside your phone, your game, your notebook.

1001010110
1101010010
0001010001
1110101110
0101100101

Modem IP

1001010110
1101010010
0001010001
1110101110
0101100101

1001010110
1101010010
0001010001
1110101110
0101100101

Baseband ICs

Develop your own chip— 
Complete mobile broadband 
2G/3G modem Intellectual 
Property (IP) is proven  
best-in-class technology. 

Design your own mobile device— 
Our high performance modem on 
an integrated circuit (IC) provides 
a flexible wireless engine for any 
mobile broadband device.

Reference 
Platforms

Turn a proven wireless platform 
into your own—Pre-certified 
designs, software, and support 
deliver all the pieces and the 
guidebook—“ready-to-wear”  
or tailored to your own needs.

Corporate Information

AnnuAl Meeting of ShAreholderS 

inveStor relAtionS

Thursday, June 5, 2008 
11:00 a.m. EDT 
Radisson Valley Forge 
1160 First Avenue 
King of Prussia, Pennsylvania

Janet M. Point  
Executive Vice President,  
Communications & Investor Relations 
+1 610.878.7866 
e-mail: janet.point@interdigital.com

CoMMon StoCk inforMAtion

The primary market for InterDigital’s  
common stock is the NASDAQ Global  
Select Market (SM). InterDigital trades  
under the ticker symbol “IDCC”.

CorporAte offiCe And  

developMent fACility

781 Third Avenue 
King of Prussia, PA 19406 USA 
+1 610 878 7800

regiStrAr And trAnSfer Agent

developMent fACilitieS

Shareholders with questions concerning  
stock certificates, shareholder records, account 
information, dividends, or stock transfer should 
contact InterDigital’s transfer agent:

American Stock Transfer and Trust Co. 
Customer Service 
59 Maiden Lane 
New York, NY 10038 USA 
+1 800 937 5449 
www.amstock.com 

independent regiStered  

puBliC ACCounting firM

PricewaterhouseCoopers LLP 
Philadelphia, PA USA

Two Huntington Quadrangle, 4th Floor 
Melville, NY 11747 USA

InterDigital Canada Ltée
1000 Sherbrooke Street West 
10th Floor 
Montreal, Quebec, Canada  
H3A 3G4

WeB Site

www.interdigital.com

trAdeMArkS

InterDigital is a registered  
trademark and SlimChip is a  
trademark of InterDigital, Inc. 
All other trademarks, service marks 
and/or trade names appearing in  
this Annual Report are the property  
of their respective holders.

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Forward Looking Statements: Statements made in the introduction to the annual report and in the letter to shareholders that relate to future plans, events, financial results or performance, including without limitation, statements related to our SlimChip Mobile Broadband Modem solutions, our stock buy-back program, progress on resolution of disputes with key licensees, our media independent handover technology and its adoption within Korea and with other leading operators around the world, potential Infineon 3G chip sales, the completion of licensing deals with the top 5 handset manufacturers and Tier 2 and 3 manufacturers, the potential for increased revenue from our SlimChip Baseband IC sales and Modem IP licenses, the adoption of our inventions in worldwide leading standards bodies (especially in next generation technologies such as LTE, 4G and 802), our contributions to security technologies for wireless transmission, levels of operating profit, positive cash flow, our participation in evolving technology, our efforts to target and sell and/or license our IP to manufacturers of data cards and our 
 
 
 
 
Financial Summary 2007

This page was intentionally left blank. 

Table oF conTenTS 

Glossary of Terms 

PART  I 
Item 1. 

Business 
General 
Wireless Communications Industry Overview 
Evolution of Wireless Standards 
InterDigital’s Strategy 
InterDigital’s Technology Position 
Business Activities 
Competition 
Employees 
Executive Officers 
Risk Factors 

Item 1A. 
Item 1B.  Unresolved Staff Comments 
Item 2. 
Item 3. 

Properties 
Legal Proceedings 
Nokia 
Samsung 
Other 
Federal 
 Submission of Matters to a Vote of Security Holders 

Item 4. 

PART  II 
Item 5. 

Item 6. 
Item 7. 

Item 7A. 
Item 8. 

PART  III 
Item 11. 
Item 12. 

Item 13. 

Item 14. 

 Market for Company’s Common Equity, Related Stockholder  
Matters and Issuer Purchases of Equity Securities 
Selected Financial Data 
 Management’s Discussion and Analysis of Financial Condition  
and Results of Operations 
 Quantitative and Qualitative Disclosures about Market Risk 
Financial Statements and Supplementary Data 

Executive Compensation 
 Security Ownership of Certain Beneficial Owners  
and Management and Related Stockholder Matters 
 Certain Relationships and Related Transactions,  
and Director Independence 
Principal Accountant Fees and Services 

PART  Iv   
Item 15. 

Exhibits and Financial Statement Schedules 
Signatures 

Page

ii

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3
4
6
7
8
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19
19
21
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35

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38

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67

105
105

105

106
106

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113

i

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
gloSSaRY oF TeRMS

1xEV-DO
“First Evolution Data Optimized.” An evolution of cdma2000.

2G
“Second Generation.” A generic term usually used in reference to voice-oriented digital wireless 
products, primarily mobile handsets, that provide basic voice services.

2.5G
A  generic  term  usually  used  in  reference  to  fully  integrated  voice  and  data  digital  wireless 
devices offering higher data rate services and features compared to 2G.

3G
“Third Generation.” A generic term usually used in reference to the generation of digital mobile 
devices  and  networks  after  2G  and  2.5G,  which  provide  high  speed  data  communications 
capability along with voice services.

3GPP
“3G  Partnership  Project.” A  partnership  of  worldwide  accredited  Standards  organizations  the 
purpose of which is to draft specifications for Third Generation mobile telephony.

802.11
An  IEEE  Standard  for  wireless  LAN  interoperability.  Letter  appendages  (i.e.,  802.11  a/b/g)  identify 
various amendments to the Standards which denote different features and capabilities.

Air Interface
The  wireless  interface  between  a  terminal  unit  and  the  base  station  or  between  wireless 
devices in a communication system.

ANSI
“American National Standards Institute.” The United States national standards accreditation and 
policy  agency.  ANSI  monitors  and  provides  oversight  of  all  accredited  U.S.  Standards 
Development Organizations to ensure they follow an open public process.

ASIC
“Application Specific Integrated Circuit.” A computer chip developed for a specific purpose and 
frequently designed using a microprocessor core and integrating other functions unique to the 
application in which the chip will be used. Many SOC designs are ASICs.

ATIS
“Alliance for Telecommunications Industry Solutions.” An ANSI-accredited U.S.-based Standards 
association  which  concentrates  on  developing  and  promoting  technical/operational  standards 
for the communications and information technology industries worldwide.

Bandwidth
A  range  of  frequencies  that  can  carry  a  signal  on  a  transmission  medium,  measured  in  Hertz 
and computed by subtracting the lower frequency limit from the upper frequency limit.

Base Station
The  central  radio  transmitter/receiver,  or  group  of  central  radio  transmitters/receivers,  that 
maintains  communications  with  subscriber  equipment  sets  within  a  given  range  (typically  a 
cell site).

ii

Category 10

The HSDPA Standard contains different “categories,” ranging from category 1 through category 
10,  to  define  specific  configurations  and  performances.  Category  10  is  the  fastest  mode  of 
HSDPA and is capable of achieving 14Mbps.

CDMA
“Code  Division  Multiple Access.” A  method  of  digital  spread  spectrum  technology  wireless 
transmission that allows a large number of users to share access to a single radio channel by 
assigning unique code sequences to each user.

cdmaOne
A wireless cellular system application based on 2G narrowband CDMA technologies (e.g., TIA/
EIA-95).

cdma2000®
A  Standard  which  evolved  from  narrowband  CDMA  technologies  (i.e., TIA/EIA-95  and 
cdmaOne). The  CDMA  family  includes,  without  limitation,  CDMA2000  1x,  CDMA  1xEV-DO, 
CDMA2000  1xEV-DV  and  CDMA2000  3x.  Although  CDMA2000  1x  is  included  under 
the  IMT-2000  family  of  3G  Standards,  its  functionality  is  similar  to  2.5G  technologies. 
CDMA2000®  and  cdma2000®  are  registered  trademarks  of  the Telecommunications  Industry 
Association (TIA – USA).

Chip
An  electronic  circuit  that  consists  of  many  individual  circuit  elements  integrated  onto  a 
single substrate.

Chip Rate
The rate at which information signal bits are transmitted as a sequence of chips. The chip rate 
is usually several times the information bit rate.

Circuit
The  connection  of  channels,  conductors  and  equipment  between  two  given  points  through 
which an electric current may be established.

Digital
Information transmission where the data is represented in discrete numerical form.

Digital Cellular
A cellular communications system that uses over-the-air digital transmission.

Duplex
A  characteristic  of  data  transmission;  either  full  duplex  or  half  duplex.  Full  duplex  permits 
simultaneous transmission in both directions of a communications channel. Half duplex means 
only one transmission at a time.

EDGE
“Enhanced  Data  rates  for  GSM  Evolution.” Technology  designed  to  deliver  data  at  rates  up  to 
473.6  Kbps,  triple  the  data  rate  of  GSM  wireless  services,  and  built  on  the  existing  GSM 
Standard  and  core  network  infrastructure.  EDGE  systems  built  in  Europe  are  considered  a 
2.5G technology.

ETSI
“European Telecommunications  Standards  Institute.” The  Standards  organization  which  drafts 
Standards for Europe.

iii

Fabless
Fabrication carried out by another party under a contract.

FDD
“Frequency  Division  Duplex.”  A  duplex  operation  using  a  pair  of  frequencies,  one  for 
transmission and one for reception.

FDMA
“Frequency  Division  Multiple  Access.”  A  technique  in  which  the  available  transmission 
bandwidth  of  a  channel  is  divided  into  narrower  frequency  bands  over  fixed  time  intervals 
resulting in more efficient voice or data transmissions over a single channel.

Frequency
The rate at which an electrical current or signal alternates, usually measured in Hertz.

GHz
“Gigahertz.” One gigahertz is equal to one billion cycles per second.

GPRS
“General Packet Radio Systems.” A packet-based wireless communications service that enables 
high-speed wireless Internet and other data communications via GSM networks.

GSM
“Global  System  for  Mobile  Communications.” A  digital  cellular  Standard,  based  on TDMA 
technology, specifically developed to provide system compatibility across country boundaries.

Hertz
The unit of measuring radio frequency (one cycle per second).

HSDPA
“High  Speed  Downlink  Packet  Access.”  An  enhancement  to WCDMA/UMTS  technology 
optimized for high speed packet-switched data and high-capacity circuit switched capabilities. A 
3G technology enhancement.

HSUPA
“High Speed Uplink Packet Access.” An enhancement to WCDMA technology that improves the 
performance of the radio uplink to increase capacity and throughput, and to reduce delay.

iDEN®
“Integrated  Dispatch  Enhanced  Network.” A  proprietary TDMA  Standards-based  technology 
which allows access to phone calls, paging and data from a single device. iDEN is a registered 
trademark of Motorola, Inc.

IEEE
“Institute of Electrical and Electronic Engineers.” A membership organization of engineers that 
among its activities produces data communications standards.

IEEE 802
A Standards body within the IEEE that specifies communications protocols for both wired and 
wireless local area and wide area networks (LAN/WAN).

IC
“Integrated Circuit.” A multifunction circuit formed in or around a semiconductor base.

i v

Internet
A  network  comprised  of  numerous  interconnected  commercial,  academic  and  governmental 
networks in over 100 countries.

IPR
“Intellectual Property Right.”

ISO
“International  Standards  Organization.” An  international  organization,  which  sets  international 
electrical and electronics standards. The U.S. member body is ANSI.

ITU
“International Telecommunication  Union.” An  international  organization  established  by  the 
United  Nations  with  membership  from  virtually  every  government  in  the  world.  Publishes 
recommendations  for  engineers,  designers,  OEMs,  and  service  providers  through  its  three 
main activities: defining and adoption of telecommunications standards; regulating the use of 
the radio frequency spectrum; and furthering telecommunications development globally.

ITC
“InterDigital Technology Corporation,” one of our wholly-owned Delaware subsidiaries.

Kbps
“Kilobits  per  Second.” A  measure  of  information-carrying  capacity  (i.e.,  the  data  transfer  rate) 
of a circuit, in thousands of bits per second.

Km
“Kilometer.”

Know-How
Technical information, technical data and trade secrets that derive value from the fact that they 
are not generally known in the industry. Know-how can include, but is not limited to, designs, 
drawings,  prints,  specifications,  semiconductor  masks,  technical  data,  software,  net  lists, 
documentation and manufacturing information.

LAN
“Local Area Network.” A private data communications network linking a variety of data devices 
located in the same geographical area and which share files, programs and various devices.

LTE
“Long Term Evolution.” Generic name for the 3GPP project addressing future improvements to 
the 3G Universal Terrestrial Radio Access Network (UTRAN).

MAC
“Media Access Control.” Part of the 802.3 (Ethernet LAN) standard which contains specifications 
and rules for accessing the physical portions of the network.

MAN
“Metropolitan Area Network.” A communication network which covers a geographic area such 
as a city or suburb.

Mbps
“Megabits  per  Second.” A  measure  of  information  –  carrying  capacity  of  a  circuit;  millions  of 
bits per second.

v

MIMO
“Multiple  Input  Multiple  Output.”  A  method  of  digital  wireless  transmission  where  the 
transmitter  and/or  receiver  uses  multiple  antennas  to  increase  the  achievable  data  rate  or 
improve the reliability of a communication link.

Modem
A combination of the words modulator and demodulator, referring to a device that modifies a 
signal (such  as  sound or digital data) to allow it to be carried over a medium such as wire or 
radio.

Multiple Access
A methodology (e.g., FDMA, TDMA, CDMA) by which multiple users share access to a 
transmission channel. Most modern systems accomplish this through “demand assignment” 
where the specific parameter (frequency, time slot or code) is automatically assigned when a 
subscriber requires it.

ODM
“Original  Design  Manufacturer.”  Independent  contractors  that  develop  and  manufacture 
equipment  on  behalf  of  another  Company  using  another  Company’s  brand  name  on  the 
product.

OEM
“Original  Equipment  Manufacturer.”  A  manufacturer  of  equipment  (e.g.,  base  stations, 
terminals) that sells to operators.

OFDM
“Orthogonal  Frequency  Division  Multiplexing.” A  method  of  digital  wireless  transmission  that 
distributes a signal across a large number of closely spaced carrier frequencies.

OFDMA
“Orthogonal  Frequency  Division  Multiple Access.” A  method  of  digital  wireless  transmission 
that  allows  a  multiplicity  of  users  to  share  access  by  assigning  sets  of  narrowband  carrier 
frequencies to each user. It is an extension of OFDM to multiple users.

OSI Reference Model
A  seven  layer  network  architecture  model  developed  by  ISO  and  ITU.  Each  layer  specifies 
particular network functions.

PCMCIA
“Personal  Computer  Memory  Card  International Association.” An  international  industry  group 
that  promotes  standards  for  credit  card-sized  memory  card  hardware  that  fits  into  computing 
devices such as laptops.

PDC
“Personal  Digital  Cellular.” The  Standard  developed  in  Japan  for TDMA  digital  cellular  mobile 
radio communications systems.

PHS
“Personal Handyphone System.” A digital cordless telephone system and digital network based 
on TDMA. This low-mobility microcell Standard was developed in Japan. Commonly known as 
PAS in China.

vi

PHY
“Physical Layer.” The wires, cables, and interface hardware that connect devices on a wired or 
wireless  network.  It  is  the  lowest  layer  of  network  processing  that  connects  a  device  to  a 
transmission medium.

Platform
A combination of hardware and software blocks implementing a complete set of functionalities 
that can be optimized to create an end product.

Protocol
A  formal  set  of  conventions  governing  the  format  and  control  of  interaction  among 
communicating functional units.

Reference Platform
A  reference  platform  consists  of  the  baseband  integrated  circuit,  related  software  and  
reference design.

RF
“Radio Frequency.” The range of electromagnetic frequencies above the audio range and below 
visible light.

Smart Antenna
Antennas utilizing multiple elements with signal processing capabilities which enhance desired, 
or reduce undesired, transmission to or from wireless products.

SOC
“System-on-a-chip.” The embodiment on a single silicon chip of the essential components that 
comprise the operational core of a digital system.

Standards
Specifications  that  reflect  agreements  on  products,  practices  or  operations  by  nationally  or 
internationally  accredited  industrial  and  professional  associations  or  governmental  bodies  in 
order to allow for interoperability.

TDD
“Time  Division  Duplexing.” A  duplex  operation  using  a  single  frequency,  divided  by  time,  for 
transmission and reception.

TD/FDMA
“Time  Division/Frequency  Division  Multiple Access.” A  technique  that  combines TDMA  and 
FDMA.

TDMA
“Time  Division  Multiple  Access.”  A  method  of  digital  wireless  transmission  that  allows  a 
multiplicity  of  users  to  share  access  (in  a  time  ordered  sequence)  to  a  single  channel  without 
interference by assigning unique time segments to each user within the channel.

TD-SCDMA
“Time Division Synchronous CDMA.” A form of TDD utilizing a low Chip Rate.

vii

Terminal/Terminal Unit
Equipment  at  the  end  of  a  wireless  voice  and/or  data  communications  path.  Often  referred  to 
as an end-user device or handset. Terminal units include mobile phone handsets, PCMCIA and 
other  form  factors  of  data  cards,  personal  digital  assistants,  computer  laptops  and  modules 
with embedded wireless communications capability and telephones.

TIA/EIA-54
The original TDMA digital cellular Standard in the United States. Implemented in 1992 and then 
upgraded to the TIA/EIA-136 digital Standard in 1996.

TIA/EIA-95
A 2G CDMA Standard.

TIA/EIA-136
A United States Standard for digital TDMA technology.

TIA (USA)
The Telecommunications Industry Association.

UMB
“UltraMobile  Broadband.” A  generic  term  used  to  describe  the  next  evolution  of  the  3GPP2 
cdma2000 air interface standard. It is based on OFDMA technology.

WAN
“Wide Area  Network.” A  data  network  that  extends  a  LAN  outside  of  its  coverage  area,  via 
telephone common carrier lines, to link to other LANs.

WCDMA
“Wideband  Code  Division  Multiple Access”  or “Wideband  CDMA.” The  next  generation  of 
CDMA  technology  optimized  for  high  speed  packet-switched  data  and  high-capacity  circuit 
switched capabilities. A 3G technology.

WiMAX
A  commercial  brand  associated  with  products  and  services  using  IEEE  802.16  Standard 
technologies for wide area networks broadband wireless.

Wireless
Radio-based  systems  that  allow  transmission  of  information  without  a  physical  connection, 
such as copper wire or optical fiber.

Wireless LAN (WLAN)
“Wireless Local Area Network.” A collection of devices (computers, networks, portables, mobile 
equipment, etc.) linked wirelessly over a limited local area.

WTDD
“Wideband TDD”  or  “Wideband Time  Division  Duplex.”  A  form  of TDD  utilizing  a  high  
Chip Rate.

vi i i

PaRT I

ITeM  1.  bUSIneSS

Legal Entity Reorganization

On July 2, 2007, for the purpose of reorganizing into a holding Company structure, InterDigital 
Communications Corporation executed a Plan of Reorganization and an Agreement and Plan of 
Merger  (“Merger”)  with  InterDigital,  Inc.,  a  newly  formed  Pennsylvania  corporation  and 
another newly formed Pennsylvania corporation owned 100% by InterDigital, Inc. As a result of 
the  Merger,  InterDigital  Communications  Corporation  became  a  wholly-owned  subsidiary  of 
InterDigital,  Inc. These  transactions  are  herein  referred  to  collectively  as  the “Reorganization.” 
As  a  result  of  the  Reorganization,  neither  the  business  conducted  by  InterDigital,  Inc. 
and  InterDigital  Communications  Corporation  in  the  aggregate,  nor  the  consolidated  assets 
and  liabilities  of  InterDigital,  Inc.  and  InterDigital  Communications  Corporation,  in  the 
aggregate, changed.

By  virtue  of  the  Merger,  each  share  of  InterDigital  Communications  Corporation’s  outstanding 
common stock has been converted, on a share-for-share basis, into a share of common stock of 
InterDigital, Inc. As a result, each shareholder of InterDigital Communications Corporation has 
become the owner of an identical number of shares of common stock of InterDigital, Inc.

Further,  each  outstanding  stock  option  and  restricted  stock  unit  (RSU)  with  respect  to  the 
acquisition  of  shares  of  InterDigital  Communications  Corporation’s  common  stock  now 
represents  a  stock  option  or  RSU,  as  the  case  may  be,  with  respect  to  the  acquisition  of  an 
identical  number  of  shares  of  InterDigital,  Inc.’s  common  stock,  upon  the  same  terms  and 
conditions as the original stock option or RSU.

Immediately following the Merger, the provisions of the articles of incorporation and bylaws of 
InterDigital,  Inc.  were  the  same  as  those  of  InterDigital  Communications  Corporation  prior  to 
the Merger. Immediately following the Merger, the authorized capital stock of InterDigital, Inc., 
the  designations,  rights,  powers  and  preferences  of  such  capital  stock  and  the  qualifications, 
limitations  and  restrictions  thereof  were  also  the  same  as  the  capital  stock  of  InterDigital 
Communications  Corporation  immediately  prior  to  the  Merger.  Immediately  following  the 
Merger, the directors and executive officers of InterDigital, Inc., were the same individuals who 
were directors and executive officers, respectively, of InterDigital Communications Corporation 
immediately prior to the Merger.

In this document, the words “we,” “our,” “ours,” “us,” “the Company,” or “InterDigital” refer to 
InterDigital, Inc. and its subsidiaries, individually and/or collectively.

General

We  design  and  develop  advanced  digital  wireless  technologies  for  use  in  digital  cellular  and 
wireless  IEEE  802  related  products. We  actively  participate  in  and  contribute  our  technology 
solutions  to  worldwide  organizations  responsible  for  the  development  and  approval  of 
Standards  to  which  digital  cellular  and  IEEE  802  compliant  products  are  built,  and  our 
contributions  are  regularly  incorporated  into  such  Standards. We  offer  licenses  to  our  patents 
to  equipment  producers  that  manufacture,  use  and  sell  digital  cellular  and  IEEE  802  related 
products.  In  addition,  we  offer  for  license  or  sale  our  SlimChip  family  of  mobile  broadband 
modem solutions (which includes modem IP know-how, baseband ICs and Reference Platforms) 
to  mobile  device  manufacturers,  semiconductor  companies  and  other  equipment  producers 
that  manufacture,  use  and  sell  digital  cellular  products. We  have  built  our  suite  of  technology 
and  patent  offerings  through  independent  development,  joint  development  with  other 
companies and selected acquisitions.

1

Currently,  we  generate  revenues  primarily  from  royalties  received  under  our  patent  license 
agreements. We  also  generate  revenues  by  licensing  our  technology  solutions  and  providing 
related development support. We plan to increase our revenues through the organic growth of 
our  current  customers,  by  adding  new  patent  license  agreements  and  by  generating  sales  of 
our SlimChip solutions.

As  an  early  participant  in  the  digital  wireless  market,  we  developed  pioneering  solutions  for 
the two primary cellular air interface technologies in use today: TDMA and CDMA technologies. 
That  early  involvement,  as  well  as  our  continued  development  of  advanced  digital  wireless 
technologies, has enabled us to create our significant worldwide portfolio of patents and patent 
applications. Included in that portfolio are a number of patents and patent applications, which 
we believe are or may be essential, or may become essential to 2G and 3G cellular Standards, 
and  other  wireless  Standards  such  as  IEEE  802.  Accordingly,  we  believe  that  companies 
making, using or selling products compliant with these Standards require a license under our 
essential  patents,  and  will  require  licenses  under  essential  patents  that  may  issue  from  our 
pending patent applications. In conjunction with our participation in certain Standards bodies, 
we have filed declarations stating that we believe we have or may have essential patents and 
that  we  agree  to  make  our  essential  patents  available  for  use  and  license  on  fair,  reasonable 
and  non-discriminatory  terms  or  similar  terms  consistent  with  the  requirements  of  the 
respective Standards organizations.

Third party products incorporating our patented inventions include:

 •  Mobile devices, including cellular phones, wireless personal digital assistants and notebook 

computers, PCMCIA cards, and similar products

 • Base stations and other wireless infrastructure equipment

 • Components for wireless devices

We  also  incorporate  our  inventions  into  our  own  mobile  broadband  modem  solutions, 
including  our  SlimChip  IP,  SlimChip  ICs,  and  SlimChip  Reference  Platforms  designed  for 
advanced  performance  in  emerging  high  speed  3G  networks.  In  addition  to  conforming  to 
applicable  Standards,  our  solutions  also  include  proprietary  implementations  for  which  we 
seek patent protection. We believe that our technology solutions provide performance, time-to-
market and cost advantages to our customers.

Our  investments  in  the  development  of  advanced  digital  wireless  technologies  and  related 
products and solutions include sustaining a highly specialized engineering team and providing 
that  team  with  the  equipment  and  advanced  software  platforms  necessary  to  support  the 
development  of  technologies.  Over  each  of  the  last  three  years,  our  cost  of  development  has 
ranged  between  44%  and  47%  of  our  total  operating  expenses  exclusive  of  non-recurring 
contingency  accruals  and  repositioning  charges. The  largest  portion  of  this  cost  has  been 
personnel  costs. As  of  December  31,  2007,  we  employed  261  engineers,  93%  of  whom  hold 
advanced degrees and 45 of those hold PhDs.

InterDigital  Communications  Corporation  incorporated  in  1972  under  the  laws  of  the 
Commonwealth  of  Pennsylvania  and  it  conducted  its  initial  public  offering  in  November  1981. 
Following  an  internal  corporate  reorganization  in  July  2007,  InterDigital  Communications 
Corporation  became  the  wholly-owned  operating  subsidiary  of  InterDigital,  Inc.  InterDigital 
Communications  Corporation  is  now  known  as  InterDigital  Communications,  LLC.  Our 
corporate headquarters and administrative offices are located in King of Prussia, Pennsylvania, 
USA. Our research and technology and product development teams are located in the following 
locations:  King  of  Prussia,  Pennsylvania,  USA;  Melville,  New York,  USA;  and  Montreal, 
Quebec, Canada.

2

Our  Internet  address  is  www.interdigital.com  where,  in  the  “Investing”  section,  we  make 
available,  free  of  charge,  our Annual  Report  on  Form  10-K,  Quarterly  Reports  on  Form  10-Q, 
Current  Reports  on  Form  8-K,  certain  other  reports  required  to  be  filed  under  the  Securities 
Exchange Act of 1934 and all amendments to those reports as soon as reasonably practicable 
after such material is filed with the United States Securities and Exchange Commission (SEC). 
The  information  contained  on  or  connected  to  our  website  is  not  incorporated  by  reference 
into this annual report.

Wireless Communications Industry Overview

Participants in the wireless communications industry include original equipment manufacturers 
(OEMs), semiconductor manufacturers, original design manufacturers (ODMs), and a variety of 
technology  suppliers,  applications  developers,  and  operators  that  offer  communications 
services and products to consumers and businesses. To achieve economies of scale and allow 
for  interoperability,  products  for  the  wireless  industry  have  typically  been  built  to  wireless 
Standards. These  Standards  have  evolved  in  response  to  large  demand  for  services  and 
expanded capabilities of mobile devices. Although the cellular market initially delivered voice-
oriented and basic data services (commonly referred to as Second Generation or 2G), over the 
past five years, the industry transitioned to providing voice and multimedia services that take 
advantage  of  the  higher  speeds  offered  by  the  newer  technologies,  commonly  referred  to  as 
Third Generation or 3G technologies. Concurrently, non-cellular wireless technologies, such as 
IEEE  802.11,  have  emerged  as  a  means  to  provide  wireless  Internet  access  for  fixed  and 
nomadic  use.  Industry  participants  anticipate  a  proliferation  of  converged  devices  that 
incorporate  multiple  air  interface  technologies  and  functionalities,  and  provide  seamless 
operation. As an example, such converged devices may provide seamless operation between a 
3G network and a WLAN network.

1000

1500

500

0

Over  the  course  of  the  last  ten  years,  the  cellular  communications  industry  has  experienced 
rapid  growth  worldwide. Total  worldwide  cellular  wireless  communications  subscribers  rose 
from slightly more than 200 million at the end of 1997 to approximately 2.6 billion at the end of 
2007.  In  several  countries,  mobile  telephones  now  outnumber  fixed-line  telephones.  Market 
analysts  expect  that  the  aggregate  number  of  global  wireless  subscribers  could  exceed 
4.5 billion in 2012.

Global Handset Sales by Technology(1)

s
t
i
n
u
M

1,500

1,000

500

0

2006 

2007 

2008 

2009 

2010 

2011 

2012

3G (WCDMA)(2) 

3G (CDMA)(3) 

2G/2.5G(4) 

Total 

92 

160 

747 

999 

167 

170 

785 

240 

188 

783 

344 

201 

731 

457 

204 

645 

590 

208 

542 

735

211

409

1,122 

1,211 

1,276 

1,306 

1,340 

1,355

(1)  Source: Strategy Analytics, Inc. July 2007. Data for 2007 through 2012 represents estimates of handset sales.
(2)  Includes: WCDMA/HSPA, LTE, and TD-SCDMA.
(3)  Includes: cdma2000 and its evolutions, such as EV-DO.
(4)  Includes: GSM/GPRS/EDGE and Analog, iDEN, TDMA, PHS and PDC.

3

actual graph

For layout

 
 
 
 
 
 
 
The growth in new cellular subscribers, combined with existing customers choosing to replace 
their  mobile  phones,  helped  fuel  the  growth  of  mobile  phone  sales  from  approximately  115 
million units in 1997 to approximately one billion units in 2007. We believe the combination of a 
broad  subscriber  base,  continued  technological  change,  and  the  growing  dependence  on  the 
Internet,  e-mail  and  other  digital  media  sets  the  stage  for  continued  growth  in  the  sales  of 
wireless  products  and  services  over  the  next  five  years.  For  these  reasons,  shipments  of 
3G-enabled phones, which represented approximately 25% of the market in 2006, are predicted 
to  increase  to  approximately  70%  of  the  market  by  2012.  Moreover,  recent  advances  in  
3G  tehnologies  that  support  devices  offering  higher  data  rates  have  met  with  rapid  
consumer uptake.

In  addition  to  the  advances  in  digital  cellular  technologies,  the  industry  has  also  made 
significant advances in non-cellular wireless technologies. In particular, IEEE 802.11 WLAN has 
gained momentum in recent years as a wireless broadband solution in the home, office and in 
public  areas.  IEEE  802.11  technology  offers  high-speed  data  connectivity  through  unlicensed 
spectrum  within  a  relatively  modest  operating  range.  Since  its  introduction  in  1998, 
semiconductor  shipments  of  products  built  to  the  IEEE  802.11  Standard  have  nearly  doubled 
every  year. While  relatively  small  compared  to  the  cellular  market  (approximately  300  million 
IEEE 802.11 wireless ICs shipped in 2007), the affordability and attractiveness of the technology 
has  helped  fuel  rapid  market  growth.  In  addition,  the  IEEE  wireless  Standards  bodies  are 
creating sets of Standards to enable higher data rates, provide coverage over longer distances  
and  enable  roaming. These  Standards  are  establishing  technical  specifications  for  high  data 
rates,  such  as  IEEE  802.16  (WiMAX)  as  well  as  technology  specifications  to  enable  seamless 
handoff between different air interfaces (IEEE 802.21).

Evolution of Wireless Standards

Wireless  communications  Standards  are  formal  guidelines  for  engineers,  designers, 
manufacturers  and  service  providers  that  regulate  and  define  the  use  of  the  licensed  radio 
frequency  spectrum  in  conjunction  with  providing  specifications  for  wireless  communications 
products. A  primary  goal  of  the  Standards  is  to  assure  interoperability  of  products,  marketed 
by  multiple  companies,  built  to  a  common  Standard. A  number  of  international  and  regional 
wireless  Standards  Development  Organizations  (SDOs),  including  the  International 
Telecommunications Union (ITU), the European Telecommunications Standards Institute (ETSI), 
the Telecommunications  Industry  Association  (TIA),  the  Alliance  for Telecommunications 
Industry  Solutions  (ATIS),  and  the  American  National  Standards  Institute  (ANSI),  have 
responsibility for the development and administration of wireless communications Standards. 
New  Standards  are  typically  adopted  with  each  new  generation  of  products,  are  often 
compatible  with  previous  generations  of  the  Standards  and  are  defined  to  ensure 
interoperability.

SDOs typically ask participating companies to declare formally whether they believe they hold 
patents or patent applications essential to a particular Standard and whether they are willing to 
license those patents on either a royalty-bearing basis on fair, reasonable and nondiscriminatory 
terms  or  on  a  royalty-free  basis. To  manufacture,  have  made,  sell,  offer  to  sell  or  use  such 
products on a non-infringing basis, a manufacturer or other entity doing so must first obtain a 
license from the holder of essential patent rights. The SDOs do not have enforcement authority 
against entities that fail to obtain required licenses, nor do they have the ability to protect the 
intellectual property rights of holders of essential patents.

4

Digital Cellular Standards

The  defined  capabilities  of  the  various  technologies  continue  to  evolve  within  the  SDOs. 
Deployment  of  3G  services  allows  operators  to  take  advantage  of  additional  radio  spectrum 
allocations and through the use of higher data speeds than 2.5G, deliver additional applications 
to  their  customers.  Operators  began  to  deploy  3G  services  in  2000. The  five  specifications 
under  the  3G  standard  (generally  regarded  as  being  the  ITU “IMT-2000”  Recommendation) 
include the following forms of CDMA technology: FDD and TDD, (collectively referred to in the 
industry as WCDMA), and Multichannel CDMA (cdma2000 technology). In addition, TD-SCDMA, 
a Chinese variant of TDD technology, has been included in the Standard’s specifications.

The  principal  Standardized  digital  cellular  wireless  products  in  use  today  are  based  on TDMA 
and CDMA technologies with 3G capable-products beginning to replace 2G-only products. The 
Standardized 2G TDMA-based technologies include GSM, TIA/EIA 54/136 (commonly known as 
AMPS-D,  United  States-based TDMA,  which  is  currently  being  phased  out  in  conjunction  with 
the  U.S.  FCC-mandated  conversion  from  analog-based  cellular  service),  PDC,  PHS,  DECT  and 
TETRA.  Of  the TDMA  technologies,  GSM  is  the  most  prevalent,  having  been  deployed  in 
Europe, Asia, Africa,  the  Middle  East,  the Americas  and  other  regions.  In  2007,  approximately 
68% of total mobile device sales conform to the 2G and 2.5G TDMA-based Standards. WCDMA-
enabled  devices  accounted  for  an  additional  15%  of  total  sales. Thus,  the  combined  sales  of 
GSM-enabled  devices  and  devices  with  3G WCDMA  technology  accounted  for  approximately 
83% of worldwide handset sales.

Narrowband  2G  CDMA-based  technologies  include TIA/EIA-95  (more  commonly  known  as 
cdmaOne)  and  cdma2000  technologies  and  serve  parts  of  the  United  States,  Japan,  South 
Korea  and  several  other  countries.  Similar  to  the TDMA-based  technologies,  the  CDMA-based 
technologies  are  migrating  to  3G.  In  2007,  about  15%  of  worldwide  handset  sales  were  based 
on these 2G / 2.5G CDMA technologies plus its 3G evolution.

The Standards groups continue to advance the performance and capabilities of their respective 
air  interfaces.  Chief  among  the  most  recent  enhancements  are  High  Speed  Downlink  Packet 
Access  and  High  Speed  Uplink  Packet Access  (HSDPA/HSUPA),  an  evolution  of WCDMA,  and 
First  Evolution  Data  Optimized  (1xEV-DO),  an  evolution  of  cdma2000. At  year  end  2007,  over 
150 operators had launched HSDPA networks.

The continued advances to the WCDMA cellular air interface standards are being made under a 
program  within  3GPP  entitled  “Long Term  Evolution”  (LTE). There  is  a  similar  long  term 
evolution  program  underway  within  3GPP2  for  cdma2000  (referred  to  as  Ultra  Mobile 
Broadband (UMB)). Both of these evolution programs are based on OFDM/OFDMA technology.

Cellular Air Interface Technology Evolution

2G

3G

GSM

GPRS 

  EDGE

WCDMA

HSDPA

HSUPA

4G

LTE

TIA/EIA-95A

TIA/EIA-95B/C

CDMA2000

1X EV-DO

UMB

5

IEEE 802-Based Standards

The  wireless  Standard,  IEEE  802.11,  was  first  ratified  in  1997.  Since  that  time,  the  IEEE  802.11 
Working Group has continued to update and expand the basic IEEE 802.11 Standard to achieve 
higher  data  rates,  accommodate  additional  operating  frequencies  and  provide  additional 
features. Equipment conforming to these Standards (i.e., IEEE 802.11a/b/g) is in the marketplace 
today.  Intended  for  short  range  applications,  operating  in  unlicensed  frequency  bands  and 
requiring  a  modest  amount  of  infrastructure,  IEEE  802.11  Standards-based  equipment  has 
seen  substantial  market  growth,  especially  in  consumer  home  networking  applications. 
Similar  to  3G,  this  Standard  also  continues  to  evolve  toward  higher  data  rates  and  improved 
service capabilities.

The  wide  area  network  community  has  also  established  the  IEEE  802.16 Working  Group  to 
define air interface Standards for longer distance (2 to 50 km) Metropolitan Area and Wide Area 
Networks  (MAN/WAN). The  first  802.16  Standard  was  published  in  2002.  Specifying  operating 
frequencies from 10 to 66 GHz, it is primarily aimed toward very high speed wide area point to 
multipoint  fixed  applications.  In  2003,  an  amendment  to  the  802.16  Standard  (802.16a)  was 
published  which  added  operation  in  the  2  to  11  GHz  frequency  bands. This  addition  made  the 
Standard much more suitable for providing wireless broadband high-speed Internet access for 
residential and small office applications. In 2004, 802.16a and several other amendments to the 
base  802.16  Standard  were  combined  into  a  single  document  which  was  published  as 
802.16-2004  and  which  was  ultimately  adopted  by  the WiMAX  Business  Forum  for  fixed  use 
deployments. Equipment conforming to the 802.16-2004 fixed Standard was initially introduced 
in  2006.  Concurrent  with  this  revision  of  the  fixed  Standard,  the  802.16 Working  Group 
embarked  on  defining  a  mobile  version  of  the  Standard  (referred  to  as  802.16e). The  mobile 
version of the Standard was completed and published in February 2006 and initial equipment 
certification by the WiMAX Forum commenced in late 2007.

The WiMAX  Forum  adopted  a  specific  form  of  the  802.16e  Standard  for  development  and 
deployment  as “mobile WiMAX” The  802.16e  mobile  standard  is  being  further  developed  as 
802.16m to further improve its performance and capabilities. 802.16m is specifically targeted to 
meet  the  ITU  requirements  for  “IMT-Advanced,”  a  follow-on  to  the  earlier  IMT-2000 
Recommendation mentioned above.

More  recently,  the  IEEE  802  community  has  begun  to  address  the  question  of  handover 
between  the  different  IEEE  802  technologies,  both  wired  and  wireline,  as  well  as  handover  to 
external  non-802  networks,  such  as  cellular. This  new  group,  IEEE  802.21,  entitled  Media 
Independent Handover Services anticipates that their initial Standard will be published in mid 
2008. The  IEEE  802.21  technology  is  specifically  oriented  towards  the  future  all-IP  Next 
Generation Network that merges existing fixed and mobile networks into a single homogeneous 
integrated  network  capable  of  supporting  all  envisioned  advanced  fixed  and  mobile  services 
including voice, data and video.

InterDigital’s Strategy

A  core  component  of  our  strategy  is  the  ability  to  develop  advanced  digital  wireless 
technologies. We  will  continue  to  develop  those  technologies,  contribute  our  ideas  into  the 
Standards  bodies  and  bring  those  technologies  to  market,  generating  revenues  from  patent 
licensing  as  well  as  product  sales.  Our  goal  is  to  derive  revenue  on  every  3G  mobile  device 
sold, either in the form of patent licensing revenues, product related revenues, or a combination 
of these elements. In recent years, our patent license agreements have contributed the majority 
of  our  cash  flow  and  revenues.  As  of  December  2007,  we  recorded  patent  royalties  on 
approximately  one-third  of  all  3G  mobile  devices  sold  worldwide.  In  addition,  our  technology 
product solutions offer an additional means to generate revenue from 3G mobile devices.

6

Our strategy for achieving our goal is as follows:

•  Continue to fund significant technology development

•  Maintain  substantial  involvement  in  key  worldwide  Standards  bodies,  contributing  to 
the  ongoing  definition  of  wireless  Standards  and  incorporating  our  inventions  into 
those Standards

•  License  our  patented  technology  to  wireless  equipment  producers  worldwide,  maximizing 
realizable  value  in  our  3G  licenses  by  investing  the  time  necessary  to  negotiate  appropriate 
economic terms for 3G products

• Vigorously defend our intellectual property and related contractual rights

•  Offer to both semiconductor producers and mobile device manufacturers a family of mobile 
broadband  modem  solutions  that  include  intellectual  property  (IP)  know-how,  2G/3G 
dual-mode baseband ICs fabricated by third parties, and complete reference platforms

• Examine opportunities to acquire related or complementary technologies and capabilities

•  Establish strategic relationships  to facilitate time-to-market advantages and gain competitive 

access to both complementary technologies and IC production capabilities

InterDigital’s Technology Position

Cellular Technologies

We  have  a  long  history  of  developing  cellular  technologies  including  those  related  to  CDMA 
and TDMA technologies, and more recently, OFDMA and MIMO technologies. A number of our 
TDMA-based  and  CDMA-based  inventions  are  being  used  in  all  2G,  2.5G  and  3G  wireless 
networks and mobile terminal devices.

We led the industry in establishing TDMA-based TIA/EIA-54 as a digital wireless U.S. Standard 
in  the  1980s. We  developed  a  substantial  portfolio  of TDMA-based  patented  inventions. These 
inventions  include  or  relate  to  fundamental  elements  of TDMA-based  systems  in  use  around 
the world. Some of our more central inventions are:

•  The fundamental architecture of commercial Time Division/Frequency Division Multiple Access 
(TD/FDMA) systems

•  Methods of synchronizing TD/FDMA systems

•  A  flexible  approach  to  managing  system  capacity  through  the  reassignment  of  online 
subscriber units to different time slots and/or frequencies in response to system conditions

•  The design of a multi-component base station, utilizing distributed intelligence, which allows 
for more robust performance

•  Initializing procedures that enable roaming

We also have developed and patented innovative CDMA technology solutions. Today, we hold 
a  significant  worldwide  portfolio  of  CDMA  patents  and  patent  applications.  Similar  to  our 
TDMA  inventions,  we  believe  that  a  number  of  our  CDMA  inventions  are  essential  to  the 
implementation  of  CDMA  systems  in  use  today.  Some  of  our  CDMA  inventions  include  or 
relate to:

•  Global  pilot: The  use  of  a  common  pilot  channel  to  synchronize  sub-channels  in  a  multiple 

access environment

•  Bandwidth allocation: Techniques including multi-channel and multi-code mechanisms

7

 
•  Power  control:  Highly  efficient  schemes  for  controlling  the  transmission  output  power  of 

terminal and base station devices, a vital feature in a CDMA system

•  Joint detection and interference cancellation techniques for reducing interference

•  Soft handover enhancement techniques between designated cells

•  Various sub-channel access and coding techniques

•  Packet data

•  Fast handoff

•  Geo-location for calculating the position of terminal users

•  Multi-user detection (MUD)

•  High speed packet data channel coding

•  High speed packet data delivery in a mobile environment, including enhanced uplink

The  cellular  industry  has  ongoing  initiatives  aimed  at  technology  improvements. We  have 
engineering  development  projects  to  build  and  enhance  our  technology  portfolio  in  many  of 
these areas, including the Long Term Evolution (LTE) project for 3GPP radio technology, further 
evolution  of  the  3GPP WCDMA  Standard  (including  HSPA+),  and  continuing  improvements  to 
the  legacy  GSM-EDGE  Radio Access  Network  (GERAN). The  common  goal  is  to  improve  the 
user experience and reduce the cost to operators via increased capacity, reduced cost per bit, 
increased data rates and reduced latency. Of the above technologies, LTE is the most advanced 
in that it uses the newer OFDMA/MIMO technologies.

IEEE 802-based Wireless Technologies

With  our  strong  wireless  background,  we  have  expanded  our  engineering  and  corporate 
development  activities  to  focus  on  solutions  that  apply  to  other  wireless  market  segments. 
These segments primarily fall within the continually expanding scope of the IEEE 802 family of 
Standards. We  are  building  a  portfolio  of  technology  related  to  the WLAN, WMAN  and  digital 
cellular  area  that  includes,  for  example,  improvements  to  the  IEEE  802.11  PHY  and  MAC  to 
increase  peak  data  rates  (i.e.,  IEEE  802.11n),  handover  among  radio  access  technologies  (IEEE 
802.21),  mesh  networks  (IEEE  802.11s),  radio  resource  measurements  (IEEE  802.11k),  wireless 
network  management  (IEEE  802.11v),  wireless  network  security  and  broadband  wireless  (IEEE 
802.16, including WiMAXTM wireless technology).

Business Activities

Patent Licensing

Our Patent Portfolio

As  of  December  31,  2007,  our  patent  portfolio  consisted  of  932  U.S.  patents  (163  of  which 
issued  in  2007),  and  3,266  non-U.S.  patents  (942  of  which  issued  in  2007). We  also  have 
numerous  patent  applications  pending  worldwide. As  of  December  31,  2007,  we  had  1,328 
pending  applications  in  the  U.S.  and  8,679  pending  non-U.S.  patent  applications. The  patents 
and  applications  comprising  our  portfolio  relate  specifically  to  digital  wireless  radiotelephony 
technology  (including,  without  limitation, TDMA  and/or  CDMA)  and  expire  at  differing  times 
ranging from 2007 through 2027. A significant part of our TDMA patent portfolio, representing 
some of the Company’s “pioneering” TDMA patents, expired during 2006.

The  United  States  Patent  and Trademark  Office  (USPTO)  permits  the  filing  of “provisional” 
applications for, among other reasons, preserving rights to an invention prior to filing a formal 
“non-provisional”  application. Typically,  the  filing  of  a  provisional  application  is  followed  with 

8

the  filing  of  a “non-provisional”  application,  which  may  add  content,  such  as  claim  language, 
to  the  provisional  application,  or  may  combine  multiple  provisional  applications. The  USPTO, 
along  with  other  international  patent  offices,  also  permits  the  filing  of  “continuation”  or 
“divisional”  applications,  which  are  based,  in  whole  or  in  part,  on  a  previously  filed 
non-provisional  patent  application.  Most  of  our  foreign  patent  applications  are  single  treaty 
application  filings,  which  can  lead  to  patents  in  all  of  the  countries  that  are  parties  to  a 
particular treaty. During 2007, we filed 626 U.S. patent applications consisting of 143 first filed, 
U.S.  non-provisional,  non-continuation  patent  applications,  388  U.S.  provisional  applications 
and  95  U.S.  continuation,  continuation-in-part  or  divisional  applications. Typically,  each 
new  U.S.  non-provisional  application  is  used  as  the  basis  for  the  later  filing  of  one  or  more 
foreign applications.

Patent Licenses

Currently, numerous manufacturers supply digital cellular equipment conforming to 2G and 3G 
Standards. We  believe  that  any  of  those  companies  that  use  our  patented  inventions  will 
require  licenses  from  us. While  some  companies  seek  licenses  before  they  commence 
manufacturing  and/or  selling  devices  that  use  our  patented  inventions,  most  do  not. 
Consequently,  we  approach  companies  and  seek  to  establish  license  agreements. We  expend 
significant  effort  identifying  potential  users  of  our  inventions  and  negotiating  patent  license 
agreements with companies that may be reluctant to take licenses. We are in active discussions 
with  a  number  of  companies  regarding  the  licensing  of  our  2G  and  3G-related  patents  on  a 
worldwide basis. During negotiations, unlicensed companies may raise different defenses and 
arguments as to their need to enter into a patent license with us, to which we respond. In the 
past  year,  these  defenses  and  arguments  have  included  positions  by  companies:  (i)  as  to  the 
essential  nature  of  our  patents,  (ii)  that  their  products  do  not  infringe  our  patents  and/or  that 
our  patents  are  invalid  and/or  unenforceable,  and  (iii)  concerning  the  impact  of  litigation 
between us and other third parties. If we believe that a third party is required to take a license 
to  our  patents  in  order  to  manufacture  and  sell  products,  we  might  commence  legal  action 
against the third party if they refuse to enter into a patent license agreement.

We offer non-exclusive, royalty-bearing patent licenses to companies that manufacture, use or 
sell, or intend to manufacture, use or sell, equipment that implements the inventions covered 
by  our  portfolio  of  patents. We  have  entered  into  numerous  non-exclusive,  non-transferable 
(with  limited  exceptions)  patent  license  agreements  with  companies  around  the  world. When 
we enter into a new patent license agreement, the licensee typically agrees to pay consideration 
for  sales  made  prior  to  the  effective  date  of  the  license  agreement  and  also  agrees  to  pay 
royalties  or  license  fees  on  covered  products  that  it  will  sell  or  anticipates  selling  during  the 
term  of  the  agreement. We  expect  that,  for  the  most  part,  new  license  agreements  will  follow 
this  model.  Our  patent  license  agreements  are  structured  on  a  royalty-bearing  basis,  paid-up 
basis or combination thereof. Most of our patent license agreements are royalty bearing. Most 
of these agreements provide for the payment of royalties on an ongoing basis, based on sales 
of covered products built to a particular Standard (convenience based licenses). Others provide 
for the payment of royalties on an ongoing basis if the manufacture, sale or use of the licensed 
product infringes one of our patents (infringement based licenses).

Our  license  agreements  typically  contain  provisions  which  give  us  the  right  to  audit  our 
licensees’ books and records to ensure compliance with the licensees’ reporting and payment 
obligations under those agreements. From time to time, these audits reveal underreporting or 
underpayments  under  the  applicable  agreements.  In  such  cases,  we  might  enter  into 
negotiations  or  dispute  resolution  proceedings  with  the  licensee  to  resolve  the  discrepancy, 
either of which might lead to payment of all or a portion of the amount claimed due under the 
audit or termination of the license.

9

We recognize the revenue from per-unit royalties in the period when we receive royalty reports 
from  licensees.  In  circumstances  where  we  receive  consideration  for  sales  made  prior  to  the 
effective  date  of  a  patent  license,  we  typically  recognize  such  payments  as  revenue  in  the 
quarter  in  which  the  patent  license  agreement  is  signed.  However,  if  the  patent  license 
agreement is reached as part of the settlement of patent infringement litigation, we recognize 
consideration for past sales as other income. Some of these patent license agreements provide 
for  the  non-refundable  prepayment  of  royalties  which  are  usually  made  in  exchange  for 
prepayment  discounts. As  the  licensee  reports  sales  of  covered  products,  the  royalties  are 
calculated and either applied against any prepayment, or become payable in cash. Additionally, 
royalties on sales of covered products under the license agreement become payable or applied 
against  prepayments  based  on  the  royalty  formula  applicable  to  the  particular  license 
agreement. These formulas include flat dollar rates per-unit, a percentage of sales, percentage 
of  sales  with  a  per-unit  cap  and  other  similar  measures. The  formulas  can  also  vary  by  other 
factors including territory, covered Standards, quantity and dates sold.

Some  of  our  patent  licenses  are  paid-up,  requiring  no  additional  payments  relating  to 
designated sales under agreed upon conditions. Those conditions can include paid-up licenses 
for  a  period  of  time,  for  a  class  of  products,  under  certain  patents  or  for  sales  in  certain 
countries  or  a  combination  thereof.  Licenses  have  become  paid-up  based  on  the  payment  of 
fixed  amounts  or  after  the  payment  of  royalties  for  a  term. We  recognize  revenues  related  to 
fixed amounts on a straight-line basis.

From  time  to  time,  some  of  our  patent  licenses  may  contain “most  favored  licensee”  (MFL) 
clauses  which  permit  the  licensee  to  elect  to  apply  the  terms  of  a  subsequently  executed 
license  agreement  with  another  party  that  are  more  favorable  than  those  of  the  licensee’s 
original agreement. The application of the MFL clause may affect, and generally acts to reduce, 
the  amount  of  royalties  payable  by  the  licensee. The  application  of  an  MFL  clause  can  be 
complex,  given  the  varying  terms  among  patent  license  agreements.  One  key  license 
agreement  that  contains  an  MFL  clause  is  our  1996  patent  license  agreement  (Samsung 
Agreement) with Samsung Electronics Co. Ltd. (Samsung), to the extent that latter MFL clause 
has survived. Additionally, in first quarter 2007, NEC gave notice of its intent to enforce the MFL 
provision  under  its  worldwide,  non-exclusive,  generally  non-transferable,  royalty-bearing, 
narrowband  CDMA  and  3G  patent  license  agreement  with  ITC. The  parties  entered  into  an 
Amendment  to  this  patent  license  agreement  in  July  2007  to,  among  other  things,  gradually 
reduce  the  rates  applicable  to  sales  of  covered  products  under  that  agreement  and  eliminate 
NEC’s most favored licensee rights applicable to such products.

Expenditures  relating  to  maintaining  our  current  licenses  (other  than  enforcement  and 
arbitration proceedings) are not material, and are predominantly administrative in nature. Cash 
flows  from  patent  license  agreements  have  been  used  for  general  corporate  purposes, 
including  substantial  reinvestment  in  Standards  contributions,  technology  development 
and  productization.  Revenues  generated  from  royalties  are  subject  to  quarterly  and 
annual fluctuations.

During 2007, 2006 and 2005, revenue from our Asian-based licensees comprised 79%, 39%, and 
71%  of  total  revenues,  respectively.  For  the  same  years,  revenue  from  our  European-based 
licensees comprised 10%, 58%, and 14% of total revenues, respectively.

In  addition  to  patent  licensing,  we  actively  seek  to  license  know-how  both  to  companies 
with  whom  we  have  had  strategic  relationships  (including  alliance  partners)  and  to 
other companies.

10

The achievement of our long term strategic objectives is based on securing 3G patent license 
agreements  with  a  substantial  portion,  if  not  all,  of  the  mobile  phone  industry.  Because  the 
vast  majority  of  3G  mobile  device  sales  are  expected  to  occur  in  the  future,  we  believe  the 
Company  is  best  served  by  entering  into  patent  license  agreements  on  appropriate  economic 
terms,  even  if  securing  such  terms  results  in  completing  the  negotiation  of  any  particular 
license later than it otherwise could have been completed on less favorable terms.

2007 Patent License Activity

During third quarter 2007, we entered into a worldwide, non-transferable, non-exclusive, fixed-
fee  royalty-bearing  patent  license  agreement  with Apple  Inc.  (“Apple”).  Under  the  seven-year 
license  agreement,  effective  June  29,  2007,  we  granted  a  license  to Apple  under  our  patent 
portfolios covering the current iPhoneTM and certain future mobile phones, if any.

In fourth quarter 2007, we entered into an amendment of the existing non-exclusive, worldwide, 
royalty-bearing convenience-based patent license agreement with Research In Motion Limited. 
Under  the  terms  of  the  amendment,  we  extended  the  term  of  the  patent  license  agreement 
through  December  31,  2012  and  also  expanded  the  scope  of  the  patent  license  agreement  to 
cover 3G products.

In fourth quarter 2007, we entered into non-exclusive, worldwide, royalty-bearing, convenience-
based, patent license agreements with Giant Electronics covering the sale of terminal units and 
infrastructure compliant with 2G, 2.5G, and 3G Standards.

Patent Licensees Generating 2007 Revenues Exceeding 10% of Total Revenues

In 2007, LG, Sharp Corporation of Japan (Sharp) and NEC were approximately 25%, 19%, and 
14% of our total 2007 revenues, respectively.

Patent Licensees Generating 2007 Revenues Exceeding 10% of Recurring Revenues

The loss of revenues and cash payments from any of the licensees discussed below (with the 
exception of the NEC 2G Agreement and the LG patent license agreement, for which all present 
and anticipated cash has been received) would adversely affect either our cash flow or results 
of operations and could affect our ability to achieve or sustain acceptable levels of profitability.

ITC  is  a  party  to  a  worldwide,  non-exclusive,  generally  nontransferable,  royalty-bearing, 
narrowband  CDMA  and  3G  patent  license  agreement  with  NEC.  Pursuant  to  its  patent  license 
agreement  with  ITC,  NEC  is  obligated  to  pay  royalties  on  a  convenience  basis  on  all  sales  of 
products  covered  under  the  license. We  recognize  revenue  associated  with  this  agreement  in 
the  periods  we  receive  the  related  royalty  reports.  NEC  and  ITC  are  also  parties  to  a  separate 
non-exclusive,  worldwide,  convenience-based,  generally  nontransferable,  royalty-bearing 
TDMA patent license agreement (2G). In 2002, the parties amended that agreement to provide 
for  the  payment  by  NEC  to  ITC  of  $53.0  million,  in  exchange  for  which  royalty  obligations  for 
PHS  and  PDC  products  are  considered  paid-up. We  recognized  revenue  associated  with  this 
$53.0 million payment on a straight-line basis from the January 2002 agreement date through 
February  2006,  which  was  the  expected  period  of  use  by  NEC.  It  is  unlikely  that  NEC  would 
have any further royalty payment obligations under that agreement based on existing paid-up 
and  other  unique  provisions.  In  2007,  we  recorded  revenues  of  $32.3  million  from  NEC,  all  of 
which is attributable to our narrowband CDMA and 3G patent license agreement.

ITC  is  a  party  to  a  worldwide,  non-exclusive,  generally  nontransferable,  royalty-bearing, 
convenience-based patent license agreement with Sharp (Sharp PHS/PDC Agreement) covering 
sales  of  terminal  devices  compliant  with TDMA-based  PHS  and  PDC  Standards.  In  fourth 
quarter 2006, ITC and Sharp entered into an Amendment which extended the term of the Sharp 

11

PHS/PDC Agreement from April 2008 to April 2011. Sharp is obligated to make royalty payments 
on  sales  of  licensed  products  as  covered  products  are  sold. We  recognize  revenue  associated 
with this agreement in the periods we receive the related royalty reports.

ITC  and  Sharp  are  also  parties  to  a  separate  worldwide,  non-exclusive,  convenience-based, 
generally  nontransferable,  royalty-bearing  patent  license  agreement  (Sharp  NCDMA/GSM/3G 
Agreement) covering sales of GSM, narrowband CDMA and 3G products that expires upon the 
last  to  expire  of  the  patents  licensed  under  the  agreement.  Under  an  amendment  to  that 
agreement  executed  in  first  quarter  2004,  which  affects  certain  payment  terms  and  other 
obligations of the parties, Sharp made a royalty prepayment of approximately $17.8 million in 
second quarter 2004, which was exhausted in the fourth quarter of 2004. Sharp is obligated to 
make royalty payments on sales of licensed products, to the extent it does not have a royalty 
credit,  as  covered  products  are  sold.  As  part  of  the  2006  Amendment  referred  to  in  the 
preceding  paragraph,  Sharp  made  additional  lump-sum  payments  and  agreed  to  prepay 
estimated  2007  royalties  on  designated  sales. We  recognized  revenue  associated  with  this 
agreement in the periods that the royalty reports were received. This license agreement expires 
upon  the  last  to  expire  of  the  patents  licensed  under  this  agreement.  In  2007,  we  recorded 
revenues of $44.5 million from Sharp of which approximately $1.2 million is attributable to the 
Sharp  PHS/PDC  Agreement  and  approximately  $43.3  million  is  attributable  to  the  Sharp 
NCDMA/GSM/3G Agreement.

We are also a party to a worldwide, non-exclusive, royalty-bearing, convenience-based patent 
license  agreement  with  LG  Electronics,  Inc.  (“LG”)  covering  the  sale  of  (i)  terminal  units 
compliant  with  2G  and  2.5G TDMA-based  and  3G  Standards,  and  (ii)  infrastructure  compliant 
with  cdma2000  technology  and  its  extensions  up  to  a  limited  threshold  amount.  Under  the 
terms  of  the  patent  license  agreement,  LG  paid  us  $95  million  in  each  of  the  first  quarters  of 
2006, 2007, and 2008. The agreement expires at the end of 2010 upon which LG will receive a 
paid-up license to sell single-mode GSM/GPRS/EDGE terminal units under the patents included 
under  the  license,  and  become  unlicensed  as  to  all  other  products  covered  under  the 
agreement. We are recognizing revenue associated with this agreement on a straight-line basis 
from the inception of the agreement until December 31, 2010.

Patent Oppositions

In  high  technology  fields  characterized  by  rapid  change  and  engineering  distinctions,  the 
validity  and  value  of  patents  are  sometimes  subject  to  complex  legal  and  factual  challenges 
and  other  uncertainties. Accordingly,  our  patents  are  subject  to  uncertainties  typical  of  patent 
enforcement generally. Third parties have challenged and continue to challenge the validity of 
some  of  our  patents  in  various  jurisdictions. While,  in  a  few  cases,  our  patents  have  been 
invalidated  or  substantially  narrowed,  this  has  not  impaired  our  patent  license  program.  If  a 
party successfully asserts that some of our patents are invalid, unenforceable, or not infringed, 
we  do  not  believe  there  would  be  a  material  adverse  impact  on  our  ongoing  revenues  from 
existing patent license agreements. However, there could be an adverse impact on our ability 
to  generate  new  royalty  streams. The  cost  of  enforcing  and  protecting  our  patent  portfolio  is 
significant.

Patent Infringement and Declaratory Judgment Proceedings

From  time  to  time,  if  we  believe  any  party  is  required  to  license  our  patents  in  order  to 
manufacture and sell certain digital cellular products and such party has not done so, we may 
institute  legal  action  against  them. This  legal  action  typically  takes  the  form  of  a  patent 
infringement lawsuit or an administrative proceeding such as a Section 337 proceeding before 
the U.S. International Trade Commission (“USITC”). In a patent infringement lawsuit, we would 
typically  seek  damages  for  past  infringement  and  an  injunction  against  future  infringement.  

12

In  a  USITC  proceeding,  we  would  typically  seek  an  exclusion  order  to  bar  infringing  goods 
from  entry  into  the  United  States,  as  well  as  a  cease  and  desist  order  to  bar  further  sales  of 
infringing  goods  that  have  already  been  imported  into  the  United  States. The  response  from 
the subject party can come in the form of challenges to the validity, enforceability, essentiality 
and/or applicability of our patents to their products. In addition, a party might file a Declaratory 
Judgment  action  to  seek  a  court’s  declaration  that  our  patents  are  invalid,  unenforceable,  not 
infringed by the other party’s product, or are not essential. Our response to such a Declaratory 
Judgment action may include claims of infringement. When we include claims of infringement 
in a patent infringement lawsuit, a favorable ruling for the Company can result in the payment 
of damages for past sales, the setting of a royalty for future sales or issuance by the court of an 
injunction enjoining the manufacturer from manufacturing and/or selling the infringing product. 
An adverse ruling in a patent infringement lawsuit or a USITC proceeding, in terms of having 
patents declared invalid, non-infringed or unenforceable, could result in difficulty securing new 
licenses to the extent such a ruling affects a significant portion of our patent portfolio related to 
any particular wireless Standard. Regardless of the actual outcome of the litigation, the cost of 
such  litigation  can  be  significant. As  part  of  a  settlement  of  a  patent  infringement  lawsuit 
against  a  third  party,  we  could  typically  seek  to  recover  consideration  for  past  infringement, 
and grant a license under the patent(s) in suit (as well as other patents) for future sales. Such a 
license could take any of the forms discussed above.

Contractual Arbitration Proceedings

We  and  our  licensees,  in  the  normal  course  of  business,  may  have  disagreements  as  to  the 
rights and obligations of the parties under the applicable license agreement. For example, we 
could  have  a  disagreement  with  a  licensee  as  to  the  amount  of  reported  sales  and  royalties. 
Our  license  agreements  typically  provide  for  audit  rights  as  well  as  private  arbitration  as  the 
mechanism for resolving disputes. Arbitration proceedings can be resolved through an award 
rendered by the arbitrators or by settlement between the parties. Parties to an arbitration might 
have the right to have the Award reviewed in a court of competent jurisdiction. However, based 
on public policy favoring the use of arbitration, it is difficult to have arbitration awards vacated 
or  modified. The  party  securing  an  arbitration  award  may  seek  to  have  that  award  converted 
into  a  judgment  through  an  enforcement  proceeding. The  purpose  of  such  a  proceeding  is  to 
secure a judgment that can be used for, if need be, seizing assets of the other party.

Technology and Product Development

We have designed, developed and placed into operation a variety of advanced digital wireless 
technologies, systems and products since our inception in the early 1970s. Over the course of 
our history, our strength has been our ability to explore emerging technologies, identify needs 
created by the development of advanced wireless systems and building technologies for those 
new requirements.

Today,  we  are  focusing  our  product  development  efforts  on  advanced  cellular  technologies. 
This includes developing 3G WCDMA technologies, in particular HSDPA/HSUPA implementations, 
and the 3GPP Long Term Evolution (LTE) project based on OFDMA/MIMO. Our SlimChip family 
of  mobile  broadband  modem  solutions  integrates  2G  GSM/GPRS/EDGE  solutions,  which  we 
have  licensed  from  Infineon  with  our  advanced  3G  technology  (WCDMA/HSDPA/HSUPA).  Our 
SlimChip  mobile  broadband  modem  solutions  consists  of  SlimChip  IP  (broadband  modem 
intellectual property know-how), SlimChip ICs (high performance baseband ICs) and SlimChip 
Reference Platforms (chipsets, software, and reference designs).

We also develop advanced IEEE 802 wireless technologies, in particular, technology related to 
WLAN and digital cellular applications that include data rate and latency improvements to IEEE 
802.11,  handover  among  radio  access  technologies  (IEEE  802.21)  and  wireless  network 

13

management  and  security.  For  example,  we  have  developed  a  mobility  solution  based  on 
802.21  that  greatly  improves  handover  performance  between WiBro  (a  Korean  version  of 
mobile WiMax) and UMTS networks.

We recorded expenses of $87.1 million, $65.4 million, and $63.1 million during 2007, 2006, and 
2005,  respectively,  related  to  our  research  and  development  efforts. These  efforts  foster 
inventions which are the basis for many of our patents. As a result of such patents and related 
patent license agreements, in 2007, 2006 and 2005, we recognized $230.8 million, $473.6 million 
and  $144.1  million  of  patent  licensing  revenue,  respectively.  In  addition,  in  2007,  2006,  and 
2005,  we  recognized  technology  solutions  revenues  totaling  $3.4  million,  $6.9  million,  and 
$19.0 million, respectively.

3G WCDMA/FDD Technology and Product Development

We  have  developed  for  sale  or  license  the  SlimChip  family  of  mobile  broadband  solutions, 
which  supports  digital  cellular  functionality  for  2G  and  3G,  including  HSDPA  and  HSUPA. This 
IC family supports functionality compliant with R6 HSDPA and HSUPA technologies. The family 
of SlimChip products includes:

SlimChip High Performance Baseband ICs

•  Slim modem architecture optimized for mobile broadband devices

•  Advanced  receiver  technology  and  receive  diversity  for  superior  cell-edge  performance  and 

interference mitigation

•  Power-efficient design using advanced battery saving techniques

SlimChip Reference Platforms

•  Complete  chipsets,  software  and  reference  designs  for  mobile  broadband  devices,  such  as 

ExpressCards, USB sticks and mini cards for notebooks and UMPCs

•  Production tools for calibration, debug, software upgrades

•  Integration,  verification,  certification,  and  testing  support  plus  on-going  maintenance 

program

SlimChip Modem IP that is proven in silicon

 •  2G and 3G physical layers

 •  Dual mode protocol stack with InterRAT

 •  Optimized integration of GSM/GPRS/EDGE/WCDMA/HSDPA/HSUPA

Our  SlimChip  products  feature  a  “slim”  modem  architecture  where  the  modem—which 
provides  core  wireless  connectivity—is  separated  from  the  applications  processor  and 
peripheral  functions. This  approach  allows  terminal  unit  manufacturers  to  customize  the 
modem,  in  a  rapid  and  cost-efficient  manner,  to  specific  mobile  broadband  devices  such  as 
data cards, smart phones or feature phones.

SlimChip  products  feature  advanced  receiver  technology  with  receive  diversity,  providing 
superior  interference  mitigation  resulting  in  higher  data  speeds  and  better  coverage.  In  pre-
customer trials, the SlimChip Reference Platform in an Express Card form factor has delivered 
true  mobile  broadband  performance  with  data  speeds  of  up  to  7.2  Mbps  in  the  downlink  and 
1.5  Mbps  in  the  uplink. The  SlimChip  design  supports  speeds  up  to  10  Mbps  in  the  downlink 
and 5.7 Mbps in the uplink.

14

The  Company  continues  to  conduct  interoperability  testing  against  various  2G/3G  network 
vendor’s  equipment,  pre-certification  efforts  of  its  SlimChip  modem  chipset  and  reference 
platform,  including  ETSI  conformance  tests  for  GCF  (Global  Certification  Forum)  certification 
testing and continues to conduct additional customer evaluations and testing.

WCDMA/TDD Technology and Product Development

During the period 1999 through 2003, the Company was actively engaged in the development 
and  standardization  of  technology  related  to  the TDD  mode  3G  standard.  Our TDD  technology 
development  effort  resulted  in  the  Company  developing  a  validated  and  fully  Standards 
compliant WTDD  technology  solution. We  delivered TDD  technology  building  blocks  to  Nokia 
for  use  in  3G  wireless  products  for  which  they  paid  an  aggregate  amount  of  approximately 
$58.0 million.

As  a  result  of  this  and  prior  technology  development  efforts,  the  Company  established  a 
significant patent portfolio related to TDD-based wireless systems, including without limitation 
the TDD mode of WCDMA and the TD-SCDMA systems being deployed in the People’s Republic 
of  China.  As  part  of  its  license  agreements,  the  Company  typically  includes TDD-based 
Standards  (like TD-SCDMA)  as  a  covered  Standard.  In  addition,  the  Company  has  expended 
and continues to expend appropriate resources targeted to generate revenue from the roll-out 
of TD-SCDMA products in the People’s Republic of China.

Continuing Technology and Standards Development

Recognizing  the  need  continually  to  improve  data  rates,  coverage  and  capacity,  work  is 
currently  underway  within  3GPP  on  further  evolution  of  the WCDMA  Standards,  including 
evolution of HSPA (HSDPA/HSUPA) to downlink data rates of 20-40 Mbps and uplink data rates 
of approximately 10 Mbps. Releases 7 and 8 are expected to address incremental performance 
improvements to WCDMA and HSPA (HSDPA/HSUPA) including the incorporation of MIMO and 
other data throughput and latency improvements and power saving features.

In addition, work continues on a longer term initiative, Evolved UTRA/UTRAN (UMTS Terrestrial 
Radio Access/ UMTS Terrestrial Radio Access Network), also known at Long Term Evolution or 
LTE. The objectives of this initiative are more ambitious, targeting peak data rates of 300 Mbps 
in the downlink and 75 Mbps in the uplink, improved spectrum efficiency, significantly reduced 
data latency, and scaleable bandwidths from as low as 1.25 MHz to as high as 20 MHz. We are 
actively  participating  in  the  HSDPA/HSUPA  and  LTE  Standards  activities  and  have  launched 
internal  projects  to  develop  the  technology  necessary  to  support  the  new  performance 
requirements.

Wireless LAN, Mobility and Security

As  part  of  our  broader  technology  development  activities,  we  are  developing  solutions 
addressing WLAN  technology  and  mobility  between WLAN  and  cellular  networks. These 
projects  support  activities  within  the  IEEE  802,  ITU  and  3GPP  network  architecture  working 
groups. Technology  development  areas  include  improvements  to  the  802.11  PHY  and  MAC 
to  increase  peak  data  rates  (i.e.,  IEEE  802.11n),  handover  between  radio  access  technologies 
(i.e.,  IEEE  802.21),  mesh  networks,  wireless  network  management,  and  wireless  network  and 
device security.

15

3G FDD / WCDMA Technology Product Customers and Partners

Infineon Technologies AG

We  jointly  developed  and  continue  to  support  a  3G  protocol  stack  for  use  in  terminal  units 
under  our  2001  cooperative  development,  sales  and  alliance  agreement  with  Infineon 
Technologies AG  (Infineon). This  3G  protocol  stack  interfaces  with  existing  GSM/GPRS/EDGE 
protocol  stack  software  to  provide  dual-mode  (2G/3G)  protocol  stack  functionality,  supports 
Infineon’s 3G baseband processor, and is portable to other baseband processors. Together with 
Infineon, we completed the full dual-mode WCDMA/FDD release 99 protocol stack in 2003. This 
protocol  stack  solution  has  been  commercially  deployed  and  continues  to  be  offered  to  3G 
mobile  phone  and  semiconductor  producers. The  technology  is  operating  in  commercial 
production in Japan. We have supported Infineon with interoperability testing and continue to 
support product launch and certification with field support, software support and lab testing. In 
fourth  quarter  2005,  we  extended  our  3G  protocol  stack  relationship  with  Infineon  to  include 
the  joint  development  and  commercialization  of  upgraded,  Standards-compliant  Release  5 
protocol stacks with HSDPA functionality. In the first quarter of 2006, we further extended our 
3G protocol stack relationship with Infineon to include joint development and commercialization 
of an upgraded, Standards-compliant Release 6 protocol stack to include HSUPA functionality.

Also  in  fourth  quarter  2005,  we  entered  into  a  new  agreement  with  Infineon  permitting  us 
independently to offer a complete dual-mode GSM/GPRS/EDGE and WCDMA/HSDPA integrated 
protocol  stack  to  the  market.  Under  the  agreement,  we  have  licensed  Infineon’s  legacy  GCF-
certified  GSM/GPRS/EDGE  protocol  stack,  which  we  are  now  able  to  license  to  customers  in 
combination  with  our  evolving  3G  protocol  stack  and  baseband  offering. This  provides  us  the 
ability  to  offer  a  comprehensive  Standards-compliant WCDMA  Release  5  dual-mode  protocol 
stack,  as  well  as  a  complete  3G  physical  to  application  layer  modem  solution.  In  addition  to 
GCF certification, the GSM/GPRS/EGDE protocol stack has 75 type approvals and has completed 
interoperability testing with more than 80 operators in 40 countries worldwide.

In fourth quarter 2006, we announced an additional expansion of our relationship with Infineon, 
whereby  we  have  licensed  Infineon’s  field-proven  GSM/GPRS/EDGE  baseband  modem,  the 
S-GOLD®  3,  and  have  also  licensed  the  layer  one  control  software  (in  addition  to  the  protocol 
stack software which had previously been licensed). This provides us for the first time with the 
ability to offer a comprehensive Standards-compliant 2G/3G modem solution. Under the terms 
of the extended agreement with Infineon, we have the right to use the Infineon 2G technology 
in  our  own  modem  offering  or  to  sublicense  the  technology  to  third  parties  developing  their 
own 2G/3G modem offerings. We also gain access to all of the applicable design specifications, 
source  code  and  other  design  data  for  Infineon’s  integrated  GSM/GPRS/EDGE  baseband  and 
protocol  stack  technology,  including  the  S-GOLD®  3  baseband  processor ASIC  design  with 
support  for  Infineon’s  RF,  Power  Management  and  Connectivity  modules  as  well  as 
related components.

General Dynamics C4 Systems

In December 2004, we entered into an agreement with General Dynamics C4 Systems (formerly 
known  as  General  Dynamics  Decision  Systems,  Inc.)  (General  Dynamics)  to  serve  as  a 
subcontractor  on  the  Mobile  User  Objective  System  (MUOS)  program  for  the  U.S.  military. 
MUOS  is  an  advanced  tactical  terrestrial  and  satellite  communications  system  utilizing  3G 
commercial  cellular  technology  to  provide  significantly  improved  high  data  rate  and  assured 
communications for U.S. war fighters.

16

Under  the  Software  License Agreement  (SLA),  we  delivered  to  General  Dynamics  Standards-
compliant WCDMA  modem  technology,  originating  from  the  technology  we  developed  under 
our  original  agreement  with  Infineon,  for  incorporation  into  handheld  terminals. The  SLA 
provided for the payment of $18.5 million in exchange for delivery of, and a limited license to, 
our  commercial  technology  solution  for  use  within  the  U.S.  Government’s  MUOS  and  Joint 
Tactical Radio System programs. Maintenance and product training were also covered by this 
amount. A majority of our MUOS program deliverables and related payments occurred during 
2005. We completed delivery of our technology solution in 2006. In addition to the deliverables 
specifically  identified  in  the  SLA,  we  originally  agreed  to  provide  software  maintenance 
services  for  a  period  of  three  years  and  additional  future  services  as  requested  by  General 
Dynamics.  In  fourth  quarter  2006,  General  Dynamics  agreed  to  amend  the  SLA  to  release  us 
from our maintenance  obligations over the final two years of the SLA, in exchange for a $0.5 
million  reduction  to  their  remaining  payments  and  provision  of  limited  engineering  support 
services. We  recognized  approximately  $0.9  million  in  fourth  quarter  2006  as  a  result 
of this amendment.

NXP Semiconductors B.V. (formerly Philips Semiconductors)

In August  2005,  we  entered  into  an  agreement  with  NXP  (formerly  Philips  Semiconductors 
B.V.)  to  deliver  our  physical  layer  HSDPA  technology  solution  to  NXP  for  integration  into  its 
family  of  Nexperia™  cellular  system  chipsets.  Under  the  agreement,  we  will  also  agree  to 
assist  NXP  with  chip  design  and  development,  software  modification  and  system  integration 
and testing to implement our HSDPA technology solution into the NXP chipset. Subsequent to 
our delivery of portions of our HSDPA technology solution, we agreed to provide NXP support 
and maintenance over an aggregate estimated period of approximately two years.

SK Telecom

As part of our technology development, from time to time we develop technology solutions for 
customers  that  are  complimentary  to  our  existing  development  programs.  For  example,  in 
December  2006,  we  announced  that  SK Telecom,  Korea’s  leading  mobile  communications 
Company,  had  chosen  InterDigital  to  develop  an  advanced  mobility  solution  for  nationwide 
session  continuity. The  mobility  solution,  based  on  IEEE  802.21  Standards,  will  support 
nationwide  handover  for  SK Telecom’s  customers  when  moving  between WiBro  (a  Korean 
version  of  mobile WiMax) and UMTS networks throughout the country. InterDigital’s solution, 
based  on  the  IEEE  802.21  Standard  for  Media  Independent  Handoff,  includes  both  the  system 
design and the software solution for dual mode WiBro/UMTS terminal units.

In  January  of  2008,  the  Company  and  SK Telecom  extended  the  collaboration  to  develop 
additional mobile wireless handover capability adding features to enhance a seamless mobility 
between different radio technologies including WiBro, UMTS and cmda2000.

All of the above programs have provided validation of the technology and access to third party 
facilities and resources, and helped to broaden the awareness of the Company as a developer 
of advance wireless inventions.

Other Technology – Customers

In  January  2008,  the  Company  licensed  its  SlimChip  modem  technology  to  a  leading Asian 
fabless  semiconductor  company  for  integration  into  the  licensee’s  dual-mode  ICs.  Under  the 
licensing agreement, we will provide complete UMTS 3GPP Release 6 modem technology and 
customer support.

The Company is also in active dialog and testing with several potential customers for both its 
SlimChip modem IP, and its SlimChip baseband IC solutions.

17

Future Technology Partnerships and Acquisitions

In  addition  to  our  internal  research  and  development  programs,  we  pursue  a  number  of 
channels  to  investigate,  develop  and  acquire  new  architectures  and  technologies  for  wireless 
systems.  For  example,  national  and  international  university  relationships  have  provided  us 
additional  opportunities  to  explore  new  technologies  and  license  intellectual  property 
advancements that we sponsored.

We  maintain  an  active  corporate  development  program  that  seeks  further  investment 
opportunities  in  technologies  that  can  enhance  the  attractiveness  and  profitability  of  our 
technology solutions. We have also engaged in selective acquisitions to enhance our intellectual 
property  portfolio  and/or  accelerate  our  time-to-market.  For  example,  in  July  2003,  when  we 
acquired  substantially  all  the  assets  of Windshift  Holdings,  Inc.  (formerly  known  as Tantivy 
Communications,  Inc., “Windshift”)  we  acquired  patents,  patent  applications,  know-how,  and 
other  assets  related  to  cdma2000,  Smart  Antenna,  wireless  LAN  and  other  wireless 
communications technologies.

In  first  quarter  2005,  we  acquired  selected  patents,  intellectual  property  blocks  and  related 
assets which are designed to improve the range, throughput and reliability of wireless LAN and 
other  wireless  technology  systems.  Our  strategic  investments  also  included  the  acquisition  in 
first quarter 2007 of a minority equity interest, through a $5 million participation in a round of 
funding, in Kineto Wireless, a key innovator and leading supplier of Unlicensed Mobile Access 
(UMA) technology.

Competition

We compete in a wireless communications market characterized by rapid technological change, 
frequent  product  introductions,  evolving  industry  Standards  and,  in  many  products,  price 
erosion.  Further,  many  current  and  potential  competitors  may  have  advantages  over  us, 
including  (a)  existing  royalty-free  cross-licenses  to  competing  and  emerging  technologies;  (b) 
longer  operating  histories  and  presence  in  key  markets;  (c)  greater  name  recognition;  (d) 
access to larger customer bases; and (e) greater financial, sales and marketing, manufacturing, 
distribution channels, technical and other resources. The communications industry continues to 
be dominated by entities with substantial market share. That share advantage provides pricing 
advantages,  brand  strength  and  technological  influence.  In  addition,  the  combination  of  the 
market  dynamics  described  above  is  driving  many  industry  participants  to  consolidate. This 
consolidation  may  affect  the  timing  or  ability  of  third  parties  to  purchase  products  or  license 
technology from us.

Our  success  in  licensing  our  technology  solutions  as  well  as  selling  our  modem  offering  will 
depend  on  (i)  our  ability  to  continue  to  develop,  introduce  and  sell  products  and  to  make 
technology  enhancements  on  a  timely,  consistent  and  cost  effective  basis,  (ii)  our  ability  to 
keep  pace  with  technological  developments,  satisfy  varying  customer  requirements,  price  our 
products  competitively  and  achieve  market  acceptance,  and  (iii)  our  ability  to  resolve  patent 
licensing disputes that may impede product negotiations. We are well positioned in this market 
to  deliver  competitive  products  because  of  our  broad  systems  capability;  the  depth  of  our 
experience  in  developing  physical  layer,  protocol  stack  and  component  design  solutions;  the 
depth  of  our  technology  and  intellectual  property  portfolio;  our  financial  strength  and  our 
ability  to  deliver  time-to-market  and  cost  advantages  to  our  customers.  However,  new 
competitive  solutions  may  surface.  Such  alternative  solutions  may  be  made  available  at  a 
lower  cost,  may  incorporate  a  more  advanced  technology  or  may  be  a  more  comprehensive 
solution. Our products and services also face competition from existing companies developing 
product and technology offerings comparable to or more advanced than our solutions.

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We  also  face  competition  from  the  in-house  development  teams  at  the  semiconductor  and 
wireless  device  manufacturing  companies  that  may  be  developing  technology  that  is 
competitive  with  our  offering.  In  addition,  new  competitors  may  enter  the  market.  Some 
manufacturers that develop the technology for their own products may choose to license that 
technology  to  other  manufacturers.  In  addition  as  a  greater  proportion  of  wireless  3G  cellular 
devices  incorporate  traditional  computing  applications  and  IEEE  wireless  technologies  (e.g., 
802.11, 802.15, 802.16), semiconductor companies that have traditionally focused on providing 
chipsets to these industries may enter the 3G cellular market with baseband solutions as well.

We also face competition in the licensing of our patent portfolio. We believe that licenses under 
a  number  of  our  patents  are  required  to  manufacture  and  sell  2G  and  3G  products.  However, 
numerous companies also claim that they hold essential 2G and 3G patents. To the extent that 
multiple  parties  all  seek  royalties  on  the  same  product,  the  manufacturers  may  claim  to  have 
difficulty  in  meeting  the  financial  requirements  of  each  patent  holder.  In  the  past,  certain 
manufacturers  have  sought  antitrust  exemptions  to  act  collectively,  on  a  voluntary  basis.  In 
addition,  certain  manufacturers  have  sought  to  limit  aggregate  3G  licensing  fees  or  rates  for 
essential patents.

Repositioning Activities

In  fiscal  2005,  we  closed  our  Melbourne,  Florida  design  center.  Of  the  thirty-three  full  or  part-
time employees at this facility, five accepted offers of continued employment elsewhere within 
our organization. In first quarter 2006, we terminated our lease obligations associated with this 
facility. We estimate that the repositioning resulted in annual pre-tax cost savings of $6.0 million.

Employees

As of December 31, 2007, we employed 380 employees, 275 of which are full-time individuals, 
consisting  of  approximately  278  engineering  and  product  development  personnel,  20  patent 
administration  and  licensing  personnel  and  82  other  personnel.  None  of  our  employees  are 
represented by a collective bargaining unit.

Executive Officers

The information regarding our executive officers is included pursuant to Part III, Item 10 of this 
Annual Report on Form 10-K as follows:

Name 

Age 

Position

William J. Merritt 

Scott A. McQuilkin 

Richard J. Brezski 

 49 

 53 

 35 

President and Chief Executive Officer and President  
of InterDigital Technology Corporation 

Chief Financial Officer 

Chief Accounting Officer 

Gary D. Isaacs 

 48  

Chief Administrative Officer  

Brian G. Kiernan 

 61 

Executive Vice President, Standards 

Mark A. Lemmo 

William C. Miller 

James J. Nolan 

Janet Meenehan Point 

Lawrence F. Shay 

50 

52 

47 

49 

49 

Executive Vice President,  
Business Development and Product Management 

Executive Vice President, Programs and Customer Support 

Executive Vice President, Engineering  

Executive Vice President, Communications and Investor Relations

Chief Legal Officer & Government Affairs/Executive Vice President,   
Intellectual Property and Chief Intellectual Property Counsel

19

 
 
 
 
 
 
 
 
 
 
 
 
 
 
William  J.  Merritt  was  promoted  to  Chief  Executive  Officer  and  President  and  appointed  as  a 
Director of the Company in May, 2005. Mr. Merritt held the position of General Patent Counsel 
of the Company from July 2001 to May 2005.

Mr. Merritt held the position of Executive Vice President of the Company from September 1999 
to  January  2004. The  title  distinctions  among Vice  Presidents  at  the  executive  level  were 
eliminated  and  the  title  nomenclature  of  all  such  individuals  was  revised  effective  January  1, 
2004  without  a  change  to  responsibilities. As  a  result,  Executive Vice  President  was  deleted 
from Mr. Merritt’s title.

Scott A.  McQuilkin  joined  InterDigital  as  Chief  Financial  Officer  in  July  2007.  Prior  to  joining 
InterDigital,  Mr.  McQuilkin  served  as  Executive Vice  President  and  Chief  Financial  Officer  of 
GHR  Systems,  Inc.,  a  Pennsylvania  corporation,  from  February  2000  until  June  2007,  and  was 
responsible  for  all  financial  activities  including  accounting,  budgeting/forecasting,  capital 
planning, cash management, strategic planning, mergers and acquisitions, tax, purchasing and 
payables.  In  August  2006,  GHR  Systems,  Inc.  was  acquired  by  Metavante  Corporation,  a 
wholly-owned  subsidiary  of  Marshall  &  Ilsley  Corporation,  a  publicly  traded  Company.  GHR 
Systems, Inc. was retained as a wholly-owned affiliate of Metavante Corporation.

Richard J. Brezski joined InterDigital as Director and Controller in May 2003. In July 2006, Mr. 
Brezski  was  promoted  to  Sr.  Director  and  as  of  February  8,  2007  was  appointed  Chief 
Accounting  Officer.  Prior  to  joining  InterDigital,  Mr.  Brezski  served  as  an  audit  manager  for 
PricewaterhouseCoopers in its technology practice.

Gary  D.  Isaacs  joined  InterDigital  as  Director  of  Human  Resources  in  September  1998.  Mr. 
Isaacs  was  promoted  to Vice  President  of  Human  Resources  in April  1999. As  of  February  8, 
2007,  Mr.  Isaacs  was  named  Chief  Administrative  Officer  responsible  for  overseeing  the 
company’s corporate resources and information systems functions.

Brian G. Kiernan was promoted to Senior Vice President, Standards in July 1997. As of February 
8, 2007, Mr. Kiernan’s title was revised to Executive Vice President, Standards without a change 
in responsibilities.

Mark A. Lemmo has been the Company’s Executive Vice President, Business Development and 
Product Management since April 2000.

William C. Miller joined InterDigital as Senior Vice President, Programs and Engineering in July 
2000. As of February 8, 2007, Mr. Miller’s title was revised to Executive Vice President, Programs 
and Customer Support without a change in responsibilities.

James J. Nolan joined InterDigital in 1996 and, until his election as Senior Engineering Officer 
in  May  2006,  has  held  a  variety  of  engineering  positions  including Vice  President  of  Systems 
Engineering. As  of  February  8,  2007,  Mr.  Nolan’s  title  was  revised  to  Executive Vice  President, 
Engineering without a change in responsibilities. Mr. Nolan has led the Company’s technology 
and  product  development  programs  for  modems,  protocol  software  and  radio  designs  for 
multiple wireless standards.

Janet Meenehan Point joined InterDigital in January of 2000 as Director of Investor Relations. 
In January 2004, she was promoted to Senior Director, Investor Relations. In January 2006, she 
was  promoted  to  Senior  Communications  Officer  for  the  Company,  responsible  for  corporate 
communications, investor relations, and marketing. As of February 8, 2007, Ms. Point’s title was 
revised to Executive Vice President, Communications and Investor Relations without a change 
in responsibilities.

Lawrence F. Shay joined InterDigital as Vice President and General Counsel in November 2001 
and served as Corporate Secretary from November 2001 to September 2004. As of February 8, 
2007,  Mr.  Shay’s  title  was  revised  to  Chief  Legal  Officer  and  Government Affairs  without  a 

20

change in responsibilities. As of January 18, 2008, in addition to being Chief Legal Officer and 
Government  Affairs,  Mr.  Shay  was  appointed  President  of  the  Company’s  patent  holding 
subsidiaries  and  was  appointed  Executive Vice  President  of  Intellectual  Property  and  Chief 
Intellectual Property Counsel.

InterDigital’s executive officers are appointed to the offices set forth above to hold office until 
their successors are duly elected and qualified.

ITeM  1a.  RISK  F acT oRS

We face a variety of risks that may affect our business, financial condition, operating results or 
any  combination  thereof. Although  many  of  the  risks  discussed  below  are  driven  by  factors 
that  we  cannot  control  or  predict,  you  should  carefully  consider  the  identified  risks  before 
making an investment decision with respect to our common stock. In addition to the risks and 
uncertainties identified elsewhere in this annual report as well as other information contained 
herein, each of the following risk factors should be considered in evaluating our business and 
prospects. If any of the following risks or uncertainties occur or develop, our business, results 
of  operations  and  financial  condition  could  change.  In  such  an  event,  the  market  price  of  our 
common  stock  could  decline  and  you  could  lose  all  or  part  of  your  investment. The  following 
discussion addresses those risks that management believes are the most significant and which 
may affect our business, financial condition or operating results, although there are other risks 
that  could  arise,  or  may  become  more  significant  than  anticipated. The  following  risk  factors 
are not listed in any order of importance or priority.

The Price of Our Common Stock Could Continue to be Volatile.

Historically,  we  have  had  large  fluctuations  in  the  price  of  our  common  stock  and  such 
fluctuations  could  continue.  From  January  1,  2003  to  December  31,  2007,  our  common  stock 
has  traded  as  low  as  $11.65  per  share  and  as  high  as  $36.91  per  share.  Factors  that  may 
contribute to fluctuations in our stock price include, but are not limited to, general stock market 
conditions,  general  market  conditions  for  the  wireless  communications  industry,  investor 
perceptions as to the likelihood of achievement of near-term goals, changes in market share of 
significant  licensees,  announcements  concerning  litigation,  arbitration  and  other  legal 
proceedings  in  which  we  are  involved,  announcements  concerning  licensing  and  product 
matters, or our operating results.

Our Revenue and Cash Flow Could Decline Depending Upon the Success of Our  
Licensing Program.

Our ability to recognize revenue and generate cash flow from licensing is subject to a number 
of risks:

Results of Samsung and Nokia Disputes

We  are  engaged  in  (i)  a  dispute  with  Samsung  over  the  enforcement  of  an Arbitral Award 
(“Samsung Award”) rendered in connection with a dispute between Samsung and ITC over the 
application  of  the  MFL  provision  in  a  license  agreement  between  the  parties,  as  well  as  (ii)  a 
combined  proceeding  against  Samsung  and  Nokia  in  the  USITC  alleging  that  both  Samsung 
and Nokia engage in unfair trade practices by selling for importation, importing into the United 
States, and selling after importation certain 3G handsets and components that infringe certain 
InterDigital patents. If we are delayed or unsuccessful in some or all of these matters, we may 
be  delayed  in  collecting,  collect  less  than  we  expect,  or  be  unable  to  collect  royalties  from 
Samsung  on  its  sales  of  covered  2G  products  in  accordance  with  the  Samsung Award  or 
otherwise,  and  we  may  be  delayed  in  collecting,  collect  less  than  we  expect,  or  be  unable  to 
collect royalties from Samsung or Nokia on their sales of 2G/3G and 3G products.

21

Challenges to Existing License Agreements

Revenue  and  cash  flow  from  existing  and  potential  licensees  may  also  be  affected  by 
challenges  to  our  interpretation  of  provisions  of  license  agreements  or  difficulties  in 
renegotiating  current  license  agreements.  Such  challenges  or  difficulties  could  result  in 
rejection or modification of license agreements or the termination, reduction, and suspension 
of payments.

Ability to Enter into New License Agreements

We  face  challenges  in  entering  into  new  patent  license  agreements.  During  discussions  with 
unlicensed  companies,  significant  negotiation  issues  arise  from  time  to  time.  For  example, 
manufacturers  and  sellers  of  2G  products  can  be  reluctant  to  enter  into  a  license  agreement 
because  such  companies  might  be  required  to  make  a  significant  lump  sum  payment  for 
unlicensed  past  sales.  Also,  certain  of  the  inventions  we  believe  will  be  employed  in  3G 
products are the subject of our patent applications where no patent has been issued yet by the 
relevant  patent  reviewing  authorities.  Certain  prospective  licensees  are  unwilling  to  license 
patent rights prior to a patent’s issuance. Additionally, in the ordinary course of negotiations, in 
response to our demand that they enter into a license agreement, manufacturers raise different 
defenses and arguments including, but not limited to, (i) claims by third parties challenging the 
essential nature of our patents, (ii) claims that their products do not infringe our patents or that 
our  patents  are  invalid  or  unenforceable,  and  (iii)  the  potential  impact  that  any  litigation  or 
arbitration in which we are involved may have on such manufacturers. We can not be assured 
that  all  prospective  licensees  will  be  persuaded  during  negotiations  to  enter  into  a  patent 
license agreement with us, either at all or on terms acceptable to us.

Defending and Enforcing Patent Rights

Major  telecommunications  equipment  manufacturers  have  challenged,  and  we  expect  will 
continue to challenge the validity of our patents. In some instances, certain of our patent claims 
have been declared invalid or substantially narrowed. We cannot assure that the validity of our 
patents will be maintained or that any of the key patents will be determined to be applicable to 
any  particular  product. Any  significant  adverse  finding  as  to  the  validity  or  scope  of  our  key 
patents  could  result  in  the  loss  of  patent  licensing  revenue  from  existing  licensees  and  could 
substantially impair our ability to secure new patent licensing arrangements.

In  addition,  the  cost  of  defending  our  intellectual  property  has  been  and  may  continue  to  be 
significant.  Litigation  may  be  required  to  enforce  our  intellectual  property  rights,  protect  our 
trade  secrets,  enforce  patent  license  and  confidentiality  agreements,  or  determine  the  validity 
and  scope  of  proprietary  rights  of  others.  In  addition,  third  parties  could  commence  litigation 
against  us  seeking  to  invalidate  our  patents  or  have  determined  that  our  patents  are  not 
infringed,  invalid  or  unenforceable.  As  a  result  of  any  such  litigation,  we  could  lose  our 
proprietary  rights  or  incur  substantial  unexpected  operating  costs.  Any  action  we  take  to 
protect our intellectual property rights could be costly and could require significant amounts of 
time  by  key  members  of  executive  management  and  other  personnel  that,  in  turn,  could 
negatively affect our results of operations. Moreover, third parties could circumvent certain of 
our patents through design changes. Any of these events could adversely affect our prospects 
for realizing future revenue.

Our Future Financial Condition and Operating Results Could Fluctuate Significantly.

Our financial condition and operating results have fluctuated significantly in the past and might 
fluctuate  significantly  in  the  future.  Many  of  the  factors  causing  such  quarterly  and/or  annual 
fluctuations  are  not  within  our  control.  Our  financial  condition  and  operating  results  could 
continue  to  fluctuate  because  (i)  our  licensing  revenues  are  currently  dependent  on  sales  by 

22

our  licensees  which  are  outside  of  our  control  and  which  could  be  negatively  impacted  by  a 
variety  of  factors  including  global  economic  conditions,  buying  patterns  of  end  users, 
competition for our licensees’ products, and any decline in the sale prices our licensees receive 
for their covered products; (ii) the strength of our patent portfolio could be weakened through 
patents  being  declared  invalid,  our  claims  being  narrowed,  changes  to  the  Standards  and 
patent  laws  and  regulations,  and  adverse  court  or  arbitration  decisions;  (iii)  it  is  difficult  to 
predict the timing and amount of licensing revenue associated with past infringement and new 
licenses, and the timing, nature or amount of revenues associated with strategic partnerships; 
(iv)  we  may not be  able  to  enter into additional or expanded strategic partnerships or license 
agreements, either at all or on acceptable terms; and (v) our markets are subject to increased 
competition from other products and technologies. In addition, our operating results also could 
be affected by (i) general economic and other conditions that cause a downturn in the market 
for the customers of our products or technologies; or (ii) increased expenses which could result 
from  factors  such  as  increased  litigation  and  arbitration  costs,  actions  designed  to  keep  pace 
with  technology  and  product  market  targets,  or  strategic  investments.  Further,  due  to  the  fact 
that our expenses are relatively fixed, variations in revenue from a small number of customers 
could  cause  our  operating  results  to  vary  from  quarter  to  quarter. The  foregoing  factors  are 
difficult to forecast and could adversely affect both our quarterly and annual operating results 
and financial condition.

Our  revenue  and  cash  flow  also  could  be  affected  by:  (i)  the  unwillingness  of  any  licensee  to 
satisfy  all  of  their  royalty  obligations  on  the  terms  we  expect  or  a  decline  in  the  financial 
condition  of  any  licensee;  or  (ii)  the  failure  of  2G/2.5G  and  3G  sales  to  meet  market  forecasts 
due to global economic conditions, political instability, competitive technologies, or otherwise.

Our Revenues Are Derived Primarily from a Small Number of Patent Licensees.

Over the past several years, a majority of our royalty revenues have been generated by a small 
number  of  licensees.  For  example,  we  recognized  $253  million  of  revenue  in  2006  associated 
with  the  resolution  of  certain  disputes  with  Nokia. This  was  53%  of  our  total  revenue  and  the 
largest  portion  of  our  2006  non-recurring  patent  license  revenue  of  $267.4  million.  Revenues 
from patent license agreements with LG, NEC and Sharp accounted for approximately 61% of 
our  recurring  revenue  in  both  2007  and  2006  and  52%  of  our  total  revenues  in  2005.  In  the 
event NEC or Sharp fail to meet their payment or reporting obligations under their respective 
license agreements, our future revenue and cash flow could be materially adversely impacted. 
Additionally,  many  of  our  licensees  (accounting  for  approximately  79%  of  our  2007  recurring 
revenues)  are  based  in  Japan,  and  our  future  level  of  revenue  or  cash  flow  from  these 
companies  could  be  affected  by  general  economic  conditions  in  Japan  and  each  company’s 
respective  success  in  selling  covered  products  in  markets  both  inside  and  outside  of  Japan. 
Further, our revenues from our patent license agreement with LG accounted for approximately 
26% of our  recurring revenues in 2007. Such revenues continue only through the term of that 
agreement  which  expires  in  2010,  at  which  time  most  of  the  products  licensed  thereunder 
become unlicensed. If we are unable to extend the term of this agreement or enter into a new 
agreement with LG, our future revenue and cash flow could be materially adversely impacted.

Royalty Rates Could Decrease.

Certain  licensees  and  others  in  the  wireless  industry,  individually  and  collectively,  are 
demanding that royalty rates for 2G and 3G patents be lower than historic royalty rates, and in 
some cases, that the aggregate royalty rates for 2G and 3G products be capped. A number of 
companies  have  made  claims  as  to  the  essential  nature  of  their  patents  with  respect  to 
products  for  the  3G  market.  Additionally,  for  example,  certain  members  of  the  European 
Telecommunications Standards Institute (ETSI) have previously sought to require all members 

23

that hold essential patents to agree upon a predetermined cumulative cap for royalties on the 
cost  of  all  components  of  the  next  version  of  the  3GPP-based  radio  standard  commonly 
referred to as “Long-Term Evolution” or “LTE.” Certain other members of ETSI have sought to 
require, for licensing purposes, consideration of maximum aggregate royalties in determining 
what  constitutes  a “fair  and  reasonable”  royalty  payment.  Both  the  increasing  number  of 
patent  holders  of  3G  and  future  technology  and  the  efforts,  if  successful,  by  certain  industry 
members and groups to reduce and/or place caps on royalty rates could result in a decrease in 
the  royalty  rates  we  receive  for  use  of  our  patented  inventions,  thereby  decreasing  future 
anticipated revenue and cash flow.

Changes to Our Current Calculation of Tax Liabilities.

The  calculation  of  tax  liabilities  involves  significant  judgment  in  estimating  the  impact  of 
uncertainties  in  the  application  of  complex  tax  laws. We  are  subject  to  examinations  by  the 
Internal  Revenue  Service  (“IRS”)  and  other  taxing  jurisdictions  on  various  tax  matters, 
including  challenges  to  various  positions  we  assert  in  our  filings. With  our  January  1,  2007 
adoption  of  FIN  48,  certain  tax  contingencies  are  recognized  when  they  are  determined  to  be 
more  likely  than  not  to  occur.  Although  we  believe  we  have  adequately  accrued  for  tax 
contingencies that meet this criteria, we may be required to pay taxes in excess of the amounts 
we have accrued. As of December 31, 2007 and 2006, there were certain tax contingencies that 
did  not  meet  the  applicable  criteria  to  record  an  accrual.  In  the  event  that  the  IRS  or  another 
taxing jurisdiction levies an assessment in the future, it is possible the assessment could have 
an adverse effect on our consolidated financial condition or results of operations.

The Impact of Potential Domestic Patent Reform Legislation, USPTO Reforms, Imposed 
International Patent Rules and Third Party Legal Proceedings May Impact Our Patent 
Prosecution and Licensing Strategies.

Changes  to  certain  US  patent  laws  and  regulations  may  occur  in  the  future,  some  or  all  of 
which  may  impact  our  patent  costs,  the  scope  of  future  patent  coverage  we  secure,  and 
damages  we  may  be  awarded  in  patent  litigation,  and  may  require  us  to  re-evaluate  and 
modify our  patent prosecution,  licensing and enforcement strategies. Specifically, on Aug. 21, 
2007,  the  United  States  Patent  and Trademark  Office  USPTO  issued  final  administrative  rule 
changes affecting the US patent application process, including among other things, the current 
practice regarding continuation applications. The rule changes were set to take effect on Nov. 1, 
2007; however, in the course of a lawsuit filed by Glaxo Smith Kline on Tuesday, Oct. 9, 2007, in 
the  United  States  Federal  District  Court  for  the  Eastern  District  of Virginia,  one  day  before  the 
rule changes were to take effect, the judge in that case ruled to preliminarily enjoin the USPTO 
from implementing these changes. The US Congress is also considering modification of select 
patent  laws  relating  to,  among  other  things,  how  patent  damages  are  calculated  and  the 
procedures  for  challenging  issued  patents  and  where  patent  lawsuits  can  be  filed  in  the  US. 
Specifically, The Patent Reform Act of 2007 (S.1145 and H.R.1908) is currently being considered 
for passage by Congress. S.1145, as amended, was reported out of committee on July 19, 2007. 
H.R.1908, as amended, was reported out of committee on July 18, 2007, and was debated and 
passed by the House on September 7, 2007. Additionally, there have been recent US Supreme 
Court  and  other  court  rulings  relating  to,  among  other  things,  the  standard  for  determining 
whether an invention is obvious, which is a key issue when assessing patentability, the ability 
of  a  patent  holder  to  obtain  injunctive  relief  against  infringers,  and  the  ability  of  patent 
licensees  to  challenge  the  patents  under  which  they  are  licensed. The  ruling  concerning 
injunctions  may  make  it  more  difficult,  under  some  circumstances,  for  us  to  obtain  injunctive 
relief against a party that has been found to infringe one or more of our patents, and the ruling 
regarding  patent  challenges  by  licensees  could  potentially  make  it  easier  for  our  licensees  to 

24

challenge our patents even though they have already agreed to take a license. In addition, the 
potential effect of rulings in legal proceedings between third parties may impact our licensing 
program. We  continue  to  monitor  and  evaluate  our  prosecution  and  licensing  strategies  with 
regard to these proposals and changes.

Due to the Nature of Our Business, We Could Be Involved in a Number of Litigation, 
Arbitration and Administrative Proceedings.

While  some  companies  seek  licenses  before  they  commence  manufacturing  and/or  selling 
devices that use our patented inventions, most do not. Consequently, we approach companies 
and seek to establish license agreements for using our inventions. We expend significant effort 
identifying  potential  users  of  our  inventions  and  negotiating  license  agreements  with 
companies  that  may  be  reluctant  to  take  licenses.  However,  if  we  believe  that  a  third  party  is 
required  to  take  a  license  to  our  patents  in  order  to  manufacture,  sell,  or  use  products,  we 
might  commence  legal  or  administrative  action  against  the  third  party  if  they  refuse  to  enter 
into  a  license  agreement. As  a  result  of  enforcing  our  IPR,  we  could  be  subject  to  significant 
legal fees and costs, including the costs and fees of opposing counsel in certain jurisdictions if 
we  are  unsuccessful.  In  2007,  we  spent  approximately  $36.9  million  on  patent  litigation, 
arbitration and administrative proceedings fees and related costs and accrued $24.4 million of 
additional  costs  associated  with  contingent  liabilities.  In  addition,  litigation,  arbitration  and 
administrative  proceedings  require  significant  key  employee  involvement  for  significant 
periods of time which could divert such employees from other business activities.

Our Technologies May Not Be Adopted By the Market or Widely Deployed.

We  invest  significant  engineering  resources  in  the  development  of  advanced  wireless 
technology  and  related  products. These  investments  may  not  be  recoverable  or  not  result  in 
meaningful  revenue  if  products  based  on  the  technologies  in  which  we  invest  are  not  widely 
deployed.  Competing  digital  wireless  technologies  could  reduce  the  opportunities  for 
deployment of technologies we develop. If the technologies in which we invest are not adopted 
in  the  mainstream  markets  or  in  time  periods  we  expect,  or  we  are  unable  to  secure  partner 
support  for  our  technologies,  our  business,  financial  condition  and  operating  results  could  be 
adversely  affected.  For  example,  our  ability  to  capitalize  on  our  investments  in WCDMA 
solutions  depends  upon  market  interest  in  such  technologies. There  are  emerging  wireless 
technologies,  such  as WiMAX,  that  may  compete  with WCDMA.  If  deployments  of  such  other 
competing  technologies  obtained  significant  market  share,  the  market  size  for WCDMA 
products could be reduced. All of these competing technologies also could impair multi-vendor 
and operator support for WCDMA, key factors in defining opportunities in the wireless market. 
Similarly,  changes  or  delays  in  the  implementation  of  new  wireless  Standards  could  limit  our 
opportunities in the wireless market.

Our Industry is Subject to Rapid Technological Change, Uncertainty, and  
Shifting Market Opportunities.

Our  market  success  depends,  in  part,  on  our  ability  to  keep  pace  with  changes  in  industry 
Standards,  technological  developments,  and  varying  customer  requirements.  Changes  in 
industry Standards and needs could adversely affect the development of, and demand for, our 
technology, rendering our products and technology currently under development obsolete and 
unmarketable. If we fail to anticipate or respond adequately to such changes, we could miss a 
critical  market  opportunity,  reducing  or  eliminating  our  ability  to  capitalize  on  our  technology, 
products or both.

25

The Markets for Our Technologies and Our Products May Fail to Materialize in the  
Manner We Expect.

We are positioning our current development projects for the evolving advanced digital wireless 
markets.  Certain  of  these  markets,  in  particular  the  3G  market,  may  continue  to  develop  at  a 
slower rate or pace than we expect and may be of a smaller size than we expect. Additionally, 
the development projects that target only the emerging 3G market do not have direct bearing 
on  the  2.5G  or  any  other  market  which  has  developed  or  might  develop  after  the  2G  market, 
but prior to the development of the 3G market. For example, the potential exists for a reduction 
in the size of the 3G market due to the success of current or future 2.5G solutions and WLAN. 
In addition, there could be fewer applications for our technology and products than we expect. 
The  development  of  the  3G  and  other  advanced  wireless  markets  also  could  be  impacted  by 
general economic conditions, customer buying patterns, timeliness of equipment development, 
pricing of 3G infrastructure and mobile devices, rate of growth in telecommunications services 
that would be delivered on 3G devices, and the availability of capital for, and the high cost of, 
radio  frequency  licenses  and  infrastructure  improvements.  Failure  of  the  markets  for  our 
technologies  and/or  our  products  to  materialize  to  the  extent  or  at  the  rate  we  expect  could 
reduce  our  opportunities  for  sales  and  licensing  and  could  materially  adversely  affect  our 
longer-term business, financial condition and operating results.

Our Technology and Product Development Activities May Experience Delays.

We  may  experience  technical,  financial,  resource  or  other  difficulties  or  delays  related  to  the 
further  development  of  our  technologies  and  products.  Delays  may  have  adverse  financial 
effects  and  may  allow  competitors  with  comparable  technology  and/or  product  offerings  to 
gain a commercial advantage over us. There can be no assurance that we will continue to have 
adequate staffing or that our development efforts will ultimately be successful. Further, if such 
development  efforts  are  not  successful  or  delays  are  serious,  strategic  relationships  could 
suffer  and  strategic  partners  could  be  hampered  in  their  marketing  efforts  of  products 
containing  our  technologies. As  a  result  we  could  experience  reduced  revenues  or  we  could 
miss  critical  market  opportunities.  Moreover,  our  technologies  have  not  been  fully  tested  in 
commercial use, and it is possible that they may not perform as expected. In addition, we may 
experience  adverse  effects  due  to  potential  delays  or  denials  in  obtaining  export  licenses  for 
the transfer of certain of our technologies, which may be deemed controlled technology under 
U.S.  export  control  laws,  to  certain  countries.  In  such  cases,  our  business,  financial  condition 
and operating results could be adversely affected and our ability to secure new customers and 
other business opportunities could be diminished.

We Face Substantial Competition from Companies with Greater Resources.

Competition in the wireless telecommunications industry is intense. We face competition from 
companies  developing  other  and  similar  technologies  including  existing  companies  with 
in-house development teams and new competitors to the market (See, “-Our Technologies May 
Not Be Adopted By the Market or Widely Deployed” ). Many current and potential competitors 
may  have  advantages  over  us,  including:  (a)  existing  royalty-free  cross-licenses  to  competing 
and  emerging  technologies;  (b)  longer  operating  histories  and  presence  in  key  markets;  (c) 
greater  name  recognition;  (d)  access  to  larger  customer  bases;  and  (e)  greater  financial,  sales 
and  marketing,  manufacturing,  distribution  channels,  technical  and  other  resources.  In 
particular,  our  more  limited  resources  and  capabilities  may  adver sely  impact 
our  competitive  position  if  the  market  were  to  move  towards  the  provision  of  an  existing 
complete technology platform solution which larger equipment manufacturers have the ability 
to provide.

26

We Rely on Relationships with Third Parties to Develop and Deploy Products.

The successful execution of our strategic plan is partially dependent on the establishment and 
success  of  relationships  with  equipment  producers  and  other  industry  participants. With 
respect  to  FDD  products  for  example,  our  product  plan  contemplates  that  these  third  parties 
will  permit  us  to  have  access  to  product  capability,  markets,  and  additional  libraries  of 
technology. We currently have two semiconductor partners, Infineon, in our FDD protocol stack 
technology  development  effort  and  NXP  for  a  3G  solution.  Delays  or  failure  to  enter  into 
additional partnering relationships to facilitate other technology development efforts or delays 
or  failure  to  enter  into  technology  licensing  agreements  to  secure  integration  of  additional 
functionality,  could  impair  our  ability  to  introduce  into  the  market  portions  of  our  technology 
and resulting products, cause us to miss critical market windows, or remain competitive.

We Face Claims by Third Parties That We Infringe Their Intellectual Property.

A  number  of  third  parties  publicly  have  claimed  that  they  own  patents  essential  to  various 
wireless Standards. Certain of our products are designed to comply with such Standards. If any 
of our products are found to infringe the intellectual property rights of a third party, we could 
be required to redesign such products, take a license from such third party, pay damages to the 
third party, or indemnify a customer or supplier for its damages or other losses. If we are not 
able to negotiate a license and/or if we cannot economically redesign such products, we could 
be  prohibited  from  marketing  such  products.  In  such  case,  our  prospects  for  realizing  future 
revenue could be adversely affected. If we are required to obtain licenses and/or pay royalties 
to  one  or  more  patent  holders,  this  could  have  an  adverse  effect  on  the  commercial 
implementation  of  our  wireless  products.  In  addition,  the  associated  costs  to  defend  such 
claims  could  be  significant  and  could  divert  the  attention  of  key  executive  management  and 
other personnel.

Our License Agreements Contain Provisions that Could Impair Our Ability to Realize 
Licensing Revenues.

Certain  of  our  licenses  contain  provisions  that  could  cause  the  licensee’s  obligation  to  pay 
royalties to be reduced or suspended for an indefinite period, with or without the accrual of the 
royalty obligation. For example, some of the existing license agreements may be renegotiated 
or  restructured  based  on  MFL  or  other  provisions  contained  in  the  applicable  license 
agreement. The  assertion  or  validity  of  such  provisions  under  the  existing  agreements  could 
affect our cash flow and/or the timing and amount of future recurring licensing revenue. We are 
currently  engaged  in  two  legal  proceedings  involving  the  applicability  and  application  of 
Samsung’s MFL provision in the Samsung Agreement

We Face Risks From Doing Business in Global Markets.

A significant portion of our business opportunities exists in a number of international markets. 
Accordingly,  we  could  be  subject  to  the  effects  of  a  variety  of  uncontrollable  and  changing 
factors,  including:  difficulty  in  protecting  our  intellectual  property  in  foreign  jurisdictions; 
enforcing  contractual  commitments  in  foreign  jurisdictions  or  against  foreign  corporations; 
government regulations, tariffs and other applicable trade barriers; currency control regulations; 
political  instability;  natural  disasters;  acts  of  terrorism  and  war;  potentially  adverse  tax 
consequences;  and  general  delays  in  remittance  of  and  difficulties  collecting  non-U.S. 
payments. In addition, we also are subject to risks specific to the individual countries in which 
our customers, our licensees and we do business.

27

Consolidations in the Wireless Communications Industry  
Could Adversely Affect Our Business.

The wireless communications industry has experienced consolidation of participants and sales 
of  participants  or  their  businesses  and  these  trends  may  continue. Any  concentration  or  sale 
within  the  wireless  industry  might  reduce  the  number  of  licensing  opportunities  or,  in  some 
instances,  result  in  the  loss  or  elimination  of  existing  royalty  obligations.  Further,  if  wireless 
carriers consolidate with companies that utilize technologies competitive with our technologies, 
we could lose market opportunities.

We Depend on Key Senior Management, Engineering and Licensing Resources.

Competition  exists  for  qualified  individuals  with  expertise  in  licensing  and  with  significant 
engineering  experience  in  emerging  technologies  such  as WCDMA.  Our  ability  to  attract  and 
retain  qualified  personnel  could  be  affected  by  any  adverse  decisions  in  any  litigation  or 
arbitration  and  by  our  ability  to  offer  competitive  cash  and  equity  compensation  and  work 
environment  conditions. The  failure  to  attract  and  retain  such  persons  with  relevant  and 
appropriate  experience  could  interfere  with  our  ability  to  enter  into  new  license  agreements 
and undertake additional technology and product development efforts, as well as our ability to 
meet our strategic objectives.

Market Projections and Data are Forward-Looking in Nature.

Our  strategy  is  based  on  our  own  projections  and  on  analyst,  industry  observer  and  expert 
projections,  which  are  forward-looking  in  nature  and  are  inherently  subject  to  risks  and 
uncertainties. The validity of their and our assumptions, the timing and scope of the 3G market, 
economic conditions, customer buying patterns, timeliness of equipment development, pricing 
of 3G products, growth in wireless telecommunications services that would be delivered on 3G 
devices,  and  availability  of  capital  for  infrastructure  improvements  could  affect  these 
predictions. The  inaccuracy  of  any  of  these  projections  could  adversely  affect  our  operating 
results  and  financial  condition.  In  addition,  market  data  upon  which  we  rely  is  based  on  third 
party reports which may be inaccurate.

Unauthorized Use or Disclosure of Our Confidential  
Information Could Adversely Affect Our Business.

We  enter  into  contractual  relationships  governing  the  protection  of  our  confidential  and 
proprietary  information  with  our  employees,  consultants,  and  prospective  and  existing 
customers  and  strategic  partners.  If  we  are  unable  to  timely  detect  the  unauthorized  use  or 
disclosure  of  our  proprietary  or  other  confidential  information  or  we  are  unable  to  enforce 
our  rights  under  such  agreements,  the  misappropriation  of  such  information  could  harm 
our business.

If Wireless Handsets Are Perceived to Pose Health and Safety Risks,  
Demand for Products of Our Licensees and Customers Could Decrease.

Media reports and certain studies have suggested that radio frequency emissions from wireless 
handsets  may  be  linked  to  health  concerns,  such  as  brain  tumors,  other  malignancies  and 
genetic  damage  to  blood,  and  may  interfere  with  electronic  medical  devices,  such  as 
pacemakers,  telemetry  and  delicate  medical  equipment.  If  concerns  over  radio  frequency 
emissions grow, this could discourage the use of wireless handsets and could cause a decrease 
in demand  for  the  products of our licensees and customers. In addition, concerns over safety 
risks  posed  by  the  use  of  wireless  handsets  while  driving  and  the  effect  of  any  resulting 
legislation could reduce demand for the products of our licensees and customers.

28

ITeM  1b .  UnReSol VeD  ST aFF  coM MenTS

None.

ITeM  2.  PR oPeRTIeS

We  own  one  facility,  subject  to  a  mortgage,  of  approximately  52,000  square  feet,  in  King  of 
Prussia, Pennsylvania. We are also a party to a lease entered into in May 2007 for approximately 
7,825 square feet of space in King of Prussia, Pennsylvania, that expires May 2009. We are also 
a party to a lease, extended during 2006 to expire in November 2012, for approximately 56,125 
square  feet  of  space  in  Melville,  New York.  In  addition,  we  are  a  party  to  a  lease,  expanded 
during 2006 from approximately 11,918 square feet to 20,312 square feet of space, in Montreal, 
Canada,  and  expiring  June  2011. These  facilities  are  the  principal  locations  for  our  technology 
development activities.

ITeM  3.  legal  PR oceeDIngS

Samsung and Nokia U.S. International Trade Commission  
Proceedings and Related Delaware District Court Proceedings

In  March  2007,  InterDigital,  Inc.’s  wholly-owned  subsidiaries  InterDigital  Communications,  LLC 
and  InterDigital Technology  Corporation  (collectively,  the “Company,” “InterDigital,” “we,”  or 
“our”)  filed  a  Complaint  against  Samsung  Electronics  Co.  Ltd.  and  certain  of  its  affiliates 
(collectively,  “Samsung”)  in  the  United  States  International Trade  Commission  (“USITC”) 
alleging  that  Samsung  engages  in  unfair  trade  practices  by  selling  for  importation,  importing 
into the United States, and selling after importation certain 3G handsets and components that 
infringe  three  of  InterDigital’s  patents.  In  May  2007  and  December  2007,  a  fourth  patent  and 
fifth  patent,  respectively,  were  added  to  our  Complaint  against  Samsung. The  Complaint 
against  Samsung  seeks  an  exclusion  order  barring  from  entry  into  the  U.S.  infringing  3G 
WCDMA  handsets  and  components  that  are  imported  by  or  on  behalf  of  Samsung.  Our 
Complaint  also  seeks  a  cease-and-desist  order  to  bar  sales  of  infringing  Nokia  products  that 
have already been imported into the United States.

In addition, on the same date as our filing of the Samsung USITC action referenced above, we 
also filed a Complaint in the United States District Court for the District of Delaware (“Delaware 
District  Court”)  alleging  that  Samsung’s  3G WCDMA  handsets  infringe  the  same  three 
InterDigital  patents  identified  in  the  original  Samsung  USITC  Complaint. The  U.S.  trade  laws 
provide  for  a  mandatory  stay  of  parallel  district  court  proceedings  at  the  request  of  a 
respondent.  In  June  2007,  the  Delaware  District  Court  entered  a  Stipulated  Order  staying  this 
Delaware  District  Court  proceeding  against  Samsung. The  Stipulated  Order  was  agreed  to  by 
the  parties. The  Stipulated  Order  stays  the  proceeding  until  the  USITC’s  determination  in  this 
matter  becomes  final. The  Delaware  District  Court  has  permitted  InterDigital  to  add  the  fourth 
and  fifth  asserted  patents  asserted  against  Samsung  in  the  USITC  action  to  this  stayed 
Delaware action.

In  August  2007,  we  filed  a  USITC  Complaint  against  Nokia  Corporation  and  Nokia,  Inc. 
(collectively, “Nokia”)  alleging  that  Nokia  engaged  in  an  unfair  trade  practice  by  making  for 
importation  into  the  United  States,  importing,  and  selling  after  importation  certain  3G  mobile 
handsets  and  components  that  infringe  two  of  InterDigital’s  patents.  In  November  2007  and 
December  2007,  a  third  patent  and  fourth  patent,  respectively,  were  added  to  our  Complaint 
against  Nokia. The  Complaint  against  Nokia  seeks  an  exclusion  order  barring  from  entry  into 
the U.S. infringing 3G mobile handsets and components that are imported by or on behalf of 
Nokia.  Our  Complaint  also  seeks  a  cease-and-desist  order  to  bar  further  sales  of  infringing 
Nokia products that have already been imported into the United States.

29

In addition, on the same date as our filing of the Nokia USITC action referenced above, we also 
filed  a  Complaint  in  the  Delaware  District  Court  alleging  that  Nokia’s  3G  mobile  handsets  and 
components  infringe  the  same  two  InterDigital  patents  identified  in  the  original  Nokia  USITC 
Complaint. This  Delaware  action  was  also  stayed  on  January  10,  2008,  pursuant  to  the 
mandatory,  statutory  stay  of  parallel  district  court  proceedings  at  the  request  of  a  respondent 
in an ITC Investigation. Thus, this Delaware action is stayed until the USITC’s determination in 
this  matter  becomes  final. The  Delaware  District  Court  has  permitted  InterDigital  to  add 
the  third  and  fourth  patents  asserted  against  Nokia  in  the  USITC  action  to  this  stayed 
Delaware action.

Nokia, joined by Samsung, moved to consolidate the Samsung and Nokia ITC proceedings. On 
October 24, 2007, the Honorable Paul J. Luckern, the Administrative Law Judge overseeing the 
two  USITC  proceedings  against  Samsung  and  Nokia,  respectively,  issued  an  Order  to 
consolidate  the  two  pending  investigations.  Pursuant  to  the  Order,  the  schedules  for  both 
investigations  have  been  revised  to  consolidate  proceedings  and  set  a  unified  evidentiary 
hearing  on April  21-28,  2008,  the  filing  of  a  single  initial  determination  by  Judge  Luckern  by 
July  11,  2008,  and  a Target  Date  for  the  consolidated  investigations  of  November  12,  2008,  by 
which date the USITC should issue its final determination.

On  December  4,  2007,  Nokia  moved  for  an  order  terminating,  or  alternatively,  staying  the 
USITC investigation as to Nokia, on the ground that Nokia and InterDigital must first arbitrate a 
dispute as to whether Nokia is licensed under the patents asserted by InterDigital against Nokia 
in the USITC investigation. On January 8, 2008, Judge Luckern issued an order denying Nokia’s 
motion and holding that Nokia has waived its arbitration defense by instituting and participating 
in the Investigation and other legal proceedings. On February 13, 2008, Nokia filed an action in 
the  U.S.  District  Court  for  the  Southern  District  of  New York,  seeking  to  preliminarily  enjoin 
InterDigital  from  proceeding  with  the  USITC  action  with  respect  to  Nokia,  in  spite  of  Judge 
Luckern’s  ruling  denying  Nokia’s  motion  to  terminate  the  Investigation.  Nokia  raises  in  this 
preliminary  injunction  action  the  same  arguments  it  raised  in  its  motion  to  terminate  the  ITC 
Investigation,  namely  that  InterDigital  allegedly  must  first  arbitrate  its  dispute  with  Nokia  and 
that  Nokia  has  not  waived  this  defense. The  Court  has  scheduled  a  preliminary  injunction 
hearing for March 20, 2008.

On February 8, 2008, Nokia filed a motion for summary determination that InterDigital cannot 
show that a domestic industry exists in the United States as required to obtain relief. Samsung 
joined  this  motion.  InterDigital  has  opposed  this  motion.  On  February  14  and  26,  2008, 
InterDigital  filed  its  own  motions  for  summary  determination  regarding  the  domestic 
industry  requirement.  No  schedule  has  been  set  by  Judge  Luckern  as  to  when  these  motions 
will be decided.

On  February  27,  2008,  Nokia  filed  a  motion  to  extend  the Target  Date  in  the  ITC  proceeding. 
InterDigital intends to vigorously oppose this motion.

Nokia UKII Action

In July 2005, Nokia filed a claim in the English High Court of Justice, Chancery Division, Patents 
Court  (“English  High  Court”)  against  ITC  seeking  a  Declaration  that  thirty-one  of  ITC’s  UMTS 
European Patents registered in the UK are not essential IPR for the 3GPP Standard (“UKII”).

On December 21, 2007, the English High Court issued a judgment finding that European Patent 
(UK)  0,515,610  (the  ‘610  patent),  owned  by  InterDigital Technology  Corporation,  is  essential  to 
the 3G UMTS WCDMA European standard promulgated by the European Telecommunications 
Standards  Institute  (ETSI)  and  that  this  patented  invention  is  infringed  by  carrying  out  the 
method  described  in  the  standard. The  ‘610  patent  relates  to  open  loop  power  control,  a 
fundamental  aspect  of  3G  technology.  Foreign  counterparts  having  identical  or  similar  claim 

30

language to the ‘610 patent have been issued in many parts of the world, including the United 
States,  Canada,  Germany,  France,  Spain,  Italy,  and  Sweden. The  judicial  determination  of 
essentiality  is  in  addition  to  Nokia’s  withdrawal  of  its  challenge  to  the  essentiality  of  another 
patent,  European  Patent  (UK)  0,515,675  relating  to  pilot  codes,  effectively  conceding  that  that 
patent is essential as well.

In the judgment, the English High Court ruled that one claim of the ‘610 patent was essential. 
The English High Court ruled that a second claim of the ‘610 patent, as well as three additional 
patents,  were  not  essential. A  declaration  of  non-essentiality  is  not  a  finding  that  a  particular 
third  party  product  does  not  infringe  an  InterDigital  patent,  and  no  products  were  in  issue 
in these proceedings. The judgment is subject to appeal by either party if permission to appeal 
is granted.

There will be a further hearing in April 2008 to determine the form of order to be made as well 
as any orders relating to attorneys’ fees. Pursuant to UK law, it is customary for a party winning 
a motion or the overall outcome of a case to receive reimbursement of attorneys fees from the 
other  party.  Depending  on  the  outcome  of  this  hearing,  this  could  result  in  a  substantial 
amount for the Company, Nokia or neither party.

Nokia UKIII Action

In  December  2006,  ITC  filed  a  claim  in  the  English  High  Court  against  Nokia  seeking  a 
Declaration  that  thirty-four  UMTS  European  Patents  and  one  UMTS  GB  national  patent  all 
registered in the UK and declared by Nokia to be essential IPR for the 3GPP Standard are not 
essential.  Nokia  has  since  admitted  in  the  proceedings  that  five  of  those  patents  are  not 
essential to the Standard. Since the proceedings began, an additional five of the patents have 
been  transferred  to  Nokia  Siemens  Networks  Oy,  which  has  been  joined  to  the  action  as  a 
second  defendant  and  which  has  admitted  that  one  of  the  five  patents  is  non-essential. The 
Court  has  scheduled  a  preliminary  hearing  for  no  earlier  than  June  2008  with  respect  to 
whether  the  Judge  should  exercise  his  discretion  to  issue  the  declaration  being  sought  by 
InterDigital. Trial in this action is scheduled to begin in the fourth quarter of 2008.

Nokia Delaware Proceeding

In  January  2005,  Nokia  and  Nokia,  Inc.  (collectively, “Nokia”)  filed  a  Complaint  in  the  United 
States District Court for the District of Delaware (“Delaware District Court”) against InterDigital 
Communications,  LLC  (“IDC”)  and  our  wholly-owned  subsidiary,  InterDigital Technology 
Corporation  (“ITC”)  (IDC  and  ITC  collectively  referred  to  as “InterDigital,” “we,”  or “our”), 
alleging  that  we  have  used  false  or  misleading  descriptions  or  representations  regarding  our 
patents’  scope,  validity,  and  applicability  to  products  built  to  comply  with  3G  wireless  phone 
Standards  (“Nokia  Delaware  Proceeding”). We  subsequently  filed  counterclaims  based  on 
Nokia’s licensing activities as well as Nokia’s false or misleading descriptions or representations 
regarding  Nokia’s  3G  patents  and  Nokia’s  undisclosed  funding  and  direction  of  an  allegedly 
independent study of the essentiality of 3G patents.

On  December  10,  2007,  pursuant  to  a  joint  request  by  the  parties,  the  Delaware  District  Court 
entered an Order staying the proceedings pending the full and final resolution of the Company’s 
ITC  investigation  against  Nokia  and  Samsung.  Specifically,  the  full  and  final  resolution  of  the 
ITC  investigation  includes  any  initial  or  final  determinations  of  the Administrative  Law  Judge 
overseeing  the  proceeding,  the  ITC,  and  any  appeals  therefrom.  Pursuant  to  the  Order,  the 
parties  and  their  affiliates  are  generally  prohibited  from  initiating  against  the  other  parties,  in 
any  forum,  any  claims  or  counterclaims  that  are  the  same  as  the  claims  and  counterclaims 
pending  in  the  Nokia  Delaware  Proceeding,  and  should  any  of  the  same  or  similar  claims  or 
counterclaims be initiated by a party, the other parties may seek dissolution of the stay.

31

The  Order  does  not  affect  any  of  the  other  legal  proceedings  between  the  parties  including 
the  current  ITC  Investigation  involving  InterDigital,  Nokia  and  Samsung,  or  the  parallel 
Delaware  District  Court  proceedings  also  brought  by  InterDigital  against  Nokia  and 
Samsung individually.

Nokia ICC Arbitration

In  November  2006,  we  filed  a  Request  for Arbitration  with  the  ICC  against  Nokia  (“Nokia  ICC 
Proceeding”), claiming that certain presentations Nokia has attempted to use in support of its 
claims in the Nokia Delaware Proceeding are confidential and, as a result, may not be used in 
the Nokia Delaware Proceeding pursuant to the parties’ agreement.

The  December  10,  2007,  Order  entered  by  the  Delaware  District  Court  to  stay  the  Nokia 
Delaware  Proceeding  described  above,  also  stayed  the  Nokia  ICC  Proceeding  pending  the  full 
and final resolution of the ITC Investigation against Nokia and Samsung as described above.

Samsung Delaware Proceeding

In March 2007, Samsung Telecommunications America LLP (“Samsung Telecom”) and Samsung 
Electronics Co., Ltd. (“Samsung Electronics”) filed an action against InterDigital Communications 
Corporation  (now  “InterDigital  Communications,  LLC”),  ITC  and  another  affiliate, Tantivy 
Communications, Inc. (collectively, “InterDigital,” “we,” or “our”), in the Delaware District Court, 
alleging  that  InterDigital  has  refused  to  comply  with  its  alleged  contractual  obligations  to  be 
prepared  to  license  our patents  on fair, reasonable, and non-discriminatory (“FRAND”) terms, 
and  that  InterDigital  has  allegedly  engaged  in  unfair  business  practices.  By  their  original 
Complaint in the action, the Samsung entities sought damages and declaratory relief, including 
declarations  that:  (i)  InterDigital’s  patents  and  patent  applications  allegedly  promoted  to 
standards  bodies  are  unenforceable;  (ii)  the  Samsung  entities  have  a  right  to  practice 
InterDigital’s  intellectual  property  as  a  result  of  an  alleged  license  from  QUALCOMM 
Incorporated;  (iii)  nine  specified  InterDigital  patents  are  invalid  and/or  not  infringed  by 
the  Samsung  entities;  and  (iv)  InterDigital  must  offer  the  Samsung  entities  a  license  on 
FRAND terms.

In  September  2007,  Samsung  Electronics  filed  a  First  Amended  Complaint  (“Amended 
Complaint”) in its proceeding in the Delaware District Court against InterDigital. The Amended 
Complaint includes Samsung’s originally-pled claims concerning InterDigital’s alleged behavior 
with respect to standards bodies and licensing practices, but omits all of Samsung’s previously 
asserted  claims  for  declaratory  judgment  that  nine  specified  InterDigital  patents  are  invalid 
and/or not infringed. The Amended Complaint was filed only on behalf of Samsung Electronics 
and, unlike the original Complaint, does not identify Samsung Telecom as a co-plaintiff.

InterDigital  intends  to  vigorously  defend  itself  against  Samsung’s  allegations  in  this  matter.  In 
November  2007,  InterDigital  filed  its Answer  to  the Amended  Complaint,  disputing  Samsung’s 
allegations and asserting counterclaims of infringement of two InterDigital patents. InterDigital 
simultaneously  filed  a  partial  motion  to  dismiss  Samsung’s  claim  alleging  violation  of 
California’s  Unfair  Competition  Law.  No  ruling  has  been  made  on  InterDigital’s  motion  to 
dismiss,  and  no  scheduling  order  has  been  issued  in  the  case. The  Court  has  not  yet  set  this 
matter for an initial Case Management Conference, and discovery has not yet begun.

Samsung 2nd Arbitration and Related Confirmation Proceeding

In  August  2006,  an  arbitral  tribunal  (“Tribunal”)  operating  under  the  auspices  of  the 
International  Court  of Arbitration  of  the  International  Chamber  of  Commerce  issued  a  final 
award  (“Award”)  in  an  arbitration  proceeding  between  InterDigital  Communications,  LLC  and 
InterDigital Technology Corporation (collectively, “InterDigital”), and Samsung Electronics. In its 

32

Award, the Tribunal ordered Samsung Electronics to pay to InterDigital, pursuant to the parties’ 
1996  patent  license  agreement  (“Samsung Agreement”),  approximately  $134  million  in  past 
royalties plus interest on Samsung’s sale of single mode 2G GSM/TDMA and 2.5G GSM/GPRS/
EDGE terminal units through 2005 (“Award”). The Tribunal also established the royalty rates to 
be applied to Samsung’s sales of covered products in 2006.

In September 2006, InterDigital filed an action seeking to enforce the arbitral Award in the U.S. 
District Court for the Southern District of New York (the “Enforcement Action”). Subsequent to 
that  filing,  in  September  2006  Samsung  Electronics  filed  an  opposition  to  the  enforcement 
action,  including  filing  a  cross-petition  to  vacate  or  modify  the Award  and  to  stay  the Award. 
Oral arguments were held in November 2007.

On  December  10,  2007,  the  Honorable  Richard  J.  Sullivan,  the  Judge  who  is  currently 
overseeing  the  Enforcement  Action,  confirmed  the  Award  in  its  entirety  and  directed  that 
Samsung  pay  InterDigital  $150.25  million  comprised  of  $134  million  in  royalties  plus  interest 
less an approximate $6 million prepayment credit for sales of 2G terminal units through 2005, 
plus  pre-judgment  interest  calculated  at  a  rate  of  5%  per  annum. The  Order  of  Judgment 
denied  all  of  Samsung’s  petitions  and  motions  and  does  not  include  a  specified  amount  for 
royalties owed for 2006 under the arbitration award.

On  December  18,  2007,  Samsung  filed  an  appeal  with  the  United  States  Court  of Appeals  for 
the Second Circuit and posted an appeal bond, in the amount of approximately $166.7 million, 
with the New York District Court. By posting the appeal bond, Samsung has stayed execution of 
the Order of Judgment pending the appeal. Under the current schedule, oral argument before 
the Second Circuit Court of Appeals will take place no earlier than the week of May 26, 2008.

On  February  25,  2008,  Samsung  filed  a  motion  to  stay  their  appeal,  and  vacate  the  current 
briefing schedule, pending the outcome of the Samsung 3rd Arbitration (described below). The 
Company intends to oppose Samsung’s motion.

Samsung 3rd Arbitration

In October 2006, Samsung Electronics filed a request for a new ICC arbitration proceeding (the 
“Samsung  3rd Arbitration”)  relating  to  the  ongoing  patent  royalty  dispute  between  Samsung 
and  InterDigital.  In  the  Samsung  3rd Arbitration,  Samsung  Electronics  seeks  to  have  a  new 
arbitration panel determine new royalty rates for Samsung’s 2G/2.5G GSM/GPRS/EDGE product 
sales  based  on  the  April  2006  Nokia  Settlement,  which  implemented  a  June  2005  Nokia 
arbitration Award.  Samsung  has  purported  to  have  elected  the  Nokia  Settlement  under  the 
most  favored  licensee  (“MFL”)  clause  in  the  Samsung Agreement.  Samsung  contends  that  it 
has  the  right  to  have  a  new  rate,  based  on  the  Nokia  Settlement,  applied  to  its  sales  in  the 
period from January 1, 2002 through December 31, 2006 in lieu of the royalty rates that have 
been determined by the Tribunal in the Samsung 2nd Arbitration for that period. In addition to 
seeking  relief  based  on  the  Nokia  Settlement,  Samsung  has  expressly  reserved  a  purported 
right to make an MFL election of another specified license agreement between InterDigital and 
a  third  party,  and  to  add  claims  relating  to  that  agreement.  In  the  Samsung  3rd Arbitration 
proceeding,  we  have  denied  that  Samsung  is  entitled  to  receive  any  new  royalty  rate 
adjustment  based  on  the  Nokia  Settlement  or  the  specified  third  party  license  agreement. We 
have  also  counterclaimed,  seeking  an Award  of  the  royalties  Samsung  owes  for  its  2G/2.5G 
sales  in  2006  at  the  royalty  rate  specified  in  the  August  2006  Award  in  the  Samsung 
2nd Arbitration.

In February 2008, the Tribunal heard oral argument on the issue of whether Samsung is entitled 
to elect the Nokia Settlement. The Tribunal has not indicated when it will render a decision on 
this issue. The parties will need to present evidence and/or argument in a further phase of this 

33

arbitration  on  the  amount  of  royalties  Samsung  owes  for  its  2G/2.5G  sales  in  2006,  and, 
depending  on  the Tribunal’s  decision  as  to  whether  Samsung  is  entitled  to  elect  the  Nokia 
Settlement, possibly for earlier periods of time.

Other

We  have  filed  patent  applications  in  the  United  States  and  in  numerous  foreign  countries.  In 
the ordinary course of business, we currently are, and expect from time-to-time to be, subject 
to  challenges  with  respect  to  the  validity  of  our  patents  and  with  respect  to  our  patent 
applications. We intend to continue to vigorously defend the validity of our patents and defend 
against any such challenges. However, if certain key patents are revoked or patent applications 
are denied, our patent licensing opportunities could be materially and adversely affected.

We  and  our  licensees,  in  the  normal  course  of  business,  may  have  disagreements  as  to  the 
rights  and  obligations  of  the  parties  under  the  applicable  patent  license  agreement.  For 
example, we could have a disagreement with a licensee as to the amount of reported sales of 
covered  products  and  royalties  owed.  Our  patent  license  agreements  typically  provide  for 
arbitration  as  the  mechanism  for  resolving  disputes. Arbitration  proceedings  can  be  resolved 
through  an  award  rendered  by  an  arbitration  panel  or  through  private  settlement  between 
the parties.

In  addition  to  disputes  associated  with  enforcement  and  licensing  activities  regarding  our 
intellectual property, including the litigation and other proceedings described above, we are a 
party to other disputes and legal actions not related to our intellectual property, but also arising 
in the ordinary course of our business, including claims by us for insurance coverage involving 
the Nokia Delaware Proceeding. Based upon information presently available to us, we believe 
that  the  ultimate  outcome  of  these  other  disputes  and  legal  actions  will  not  have  a  material 
adverse affect on us.

Among the types of legal proceedings we encounter in the normal course of business, we are 
engaged in the following action:

Federal

In May 2007, the Arbitrator in the arbitration proceeding between InterDigital Communications 
Corporation (now “InterDigital Communications, LLC”) and InterDigital Technology Corporation 
(collectively, “InterDigital,” “we,”  or “our”)  and  Federal  Insurance  Company  (“Federal”),  and 
relating to a Litigation Expense and Reimbursement Agreement signed in February 2000 by the 
parties  (“Reimbursement Agreement”),  refused  to  award  the  full  amount  of  Federal’s  claim 
which was in excess of $33 million. The Arbitrator did award Federal approximately $13 million, 
pursuant  to  a  formula  set  forth  in  the  Reimbursement  Agreement,  for  reimbursement  of 
attorneys’  fees  and  expenses  previously  paid  to  or  on  behalf  of  InterDigital  by  Federal,  plus 
approximately  $2  million  in  interest.  As  additional  reimbursement  of  attorneys’  fees  and 
expenses,  the Arbitrator  awarded  $5  million,  without  interest,  as  Federal’s  share  under  the 
Reimbursement Agreement  of “additional  value”  of  the  2003  settlement  between  InterDigital 
and  Ericsson  Inc.  Further,  the Arbitrator  ruled  that  InterDigital  must  pay  Federal  10%  of  any 
additional payments InterDigital may receive as a result of an audit of Sony Ericsson’s sales. In 
June 2007, we notified Federal that we had received $2 million from Sony Ericsson to resolve 
Sony Ericsson’s payment obligations following an audit. The approximately $13 million portion 
of  the Award  represents  a  percentage  of  the  amounts  InterDigital  has  received  since  March 
2003  from Telefonaktiebolaget  LM  Ericsson  and  Ericsson  Inc.,  and  Sony  Ericsson  Mobile 
Communications AB under their respective patent license agreements.

34

In  June  2007,  Federal  moved  to  confirm  the Award  in  the  United  States  District  Court  for  the 
Eastern District of Pennsylvania. Also in June 2007, we filed an opposition to Federal’s motion 
to confirm the arbitration Award and a cross motion to vacate a portion of the Award, totaling 
approximately  $14.5  million,  on  the  ground  that  the Arbitrator  exceeded  the  scope  of  her 
authority. We also moved the Court to stay confirmation of the Award pending adjudication of 
our  recoupment  defense  whereby  we  are  seeking  to  recoup  the  full  amount  of  the Award 
based  on  Federal’s  bad  faith  breach  of  its  contractual  and  fiduciary  duties  to  us.  In  July  2007, 
the  Court  heard  oral  arguments  on  Federal’s  motion  to  confirm  the Award,  our  opposition 
thereto, our cross motion to vacate the Award, and to stay confirmation pending adjudication 
of our recoupment defense. The Court has not yet ruled on these pending motions.

At  the  time  of  judgment  we  recorded  an  expense  of  approximately  $16.6  million  which 
represents  the  total  amount  of  the Award  through  third  quarter  2007,  less  the  amount  of  a 
previously accrued liability of $3.4 million. We have also accrued post judgment interest of $0.7 
million and reported such interest expense within the interest and other income, net line item 
of our Statement of Income.

ITeM  4.  SUbMISSIon  oF  Ma TTeRS T o  a VoTe  oF  SecURITY  H olDeRS.

During  the  fourth  quarter  of  fiscal  year  ended  December  31,  2007,  no  matters  were  submitted 
to a vote of our security holders.

PaRT II

ITeM  5.  MaRKeT  FoR  coMPan Y’S  co MMon  eQUITY,  RelaTeD 
STocKHolDeR  MaTTeRS   anD  ISSUeR  PURcHaSeS  oF   
eQUITY   SecURITIeS

The following table sets forth the range of the high and low sales prices of our common stock 
for the years 2007 and 2006, as reported by The NASDAQ Stock Market LLC.

2007
First Quarter 

Second Quarter 

Third Quarter 

Fourth Quarter 

2006

First Quarter 

Second Quarter 

Third Quarter 

Fourth Quarter 

High 

Low

$  35.74 

  35.25 
  32.97 

  25.50 

$  30.51

  31.04
  19.55

  16.47

High 

Low

$  27.52 

$  17.74

35.04 

35.44 

36.91 

21.41

23.92

28.81

As of February 20, 2008, there were approximately 1,348 holders of record of our common stock.

35

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
We have not paid cash dividends on our common stock since inception. It is anticipated that in 
the  foreseeable  future,  without  regard  to  any  cash  proceeds  we  may  receive  from  any 
settlement  or  resolution  of  outstanding  arbitrations  or  litigations,  no  cash  dividends  will  be 
paid  on  our  common  stock  and  any  cash  otherwise  available  for  such  dividends  will  be 
reinvested  in  our  business  or  used  to  repurchase  our  common  stock. When  considering 
whether  or  not  to  pay  cash  dividends,  our  Board  assesses  our  earnings,  any  dividend 
requirements  on  Preferred  Stock  if  issued  in  the  future,  our  capital  requirements  and  other 
relevant factors.

(a) Performance Graph

The following graph compares five-year cumulative total returns of the Company, the NASDAQ 
Stock  Market  (U.S.  companies)  Index  and  the  NASDAQ Telecommunications  Stock  Index. The 
graph  assumes  $100  was  invested  in  the  common  stock  of  InterDigital  and  each  index  of 
December 31, 2002 and that all dividends were reinvested. During this period, InterDigital has 
not declared or paid any dividends on its common stock.

Comparison of 5 Year Cumulative Total Return*

Among InterDigital Inc., The NASDAQ Composite Index and the NASDAQ Telecommunications Index

(cid:4)(cid:19)(cid:16)(cid:16)

(cid:4)(cid:18)(cid:21)(cid:16)

(cid:4)(cid:18)(cid:16)(cid:16)

(cid:4)(cid:17)(cid:21)(cid:16)

(cid:4)(cid:17)(cid:16)(cid:16)

(cid:4)(cid:21)(cid:16)

(cid:4)(cid:16)
12/02

(cid:18)(cid:21)(cid:19)(cid:14)(cid:17)(cid:18)

(cid:18)(cid:16)(cid:21)(cid:14)(cid:18)(cid:18)

(cid:17)(cid:22)(cid:16)(cid:14)(cid:18)(cid:19)

(cid:17)(cid:18)(cid:15)(cid:16)(cid:19)

(cid:17)(cid:18)(cid:15)(cid:16)(cid:20)

(cid:17)(cid:18)(cid:15)(cid:16)(cid:21)

(cid:17)(cid:18)(cid:15)(cid:16)(cid:22)

(cid:17)(cid:18)(cid:15)(cid:16)(cid:23)

Total Returns Index for: 

12/02 

12/03 

12/04 

12/05 

12/06 

12/07

n  InterDigital, Inc. 
★  NASDAQ  
Composite 

▲  NASDAQ 

100.00 

 141.48 

 151.79 

125.82 

230.43  

160.23

100.00 

 149.75 

 164.64 

 168.60 

 187.83  

205.22

Telecommunications  100.00 

 188.21 

 199.04 

192.18  

244.38 

 253.12

*$100 invested on 12/31/02 in stock or index—including reinvestment of dividend. Fiscal year ending December 31.

36

 
 
 
(c) Issuer Purchases of Equity Securities

Repurchase of Common Stock

In  2006  our  Board  of  Directors  authorized  the  repurchase  of  up  to  $350.0  million  of  our 
outstanding  common  stock.  In  October  2007,  our  Board  of  Directors  authorized  a  new  $100.0 
million  share  repurchase  program. The  Company  may  repurchase  shares  under  the  programs 
through open market purchases, pre-arranged trading plans or privately negotiated purchases. 
During  2006  we  repurchased  approximately  6.5  million  shares  of  common  stock  for  $192.5 
million. At  December  31,  2006,  we  accrued  accounts  payable  of  approximately  $7.6  million 
associated  with  our  obligation  to  settle  late  December  repurchases. We  completed  the  2006 
repurchase  program  in April  2007  through  the  repurchase  of  4.8  million  shares  of  common 
stock for $157.7 million. Under the October 2007 authorization, we repurchased approximately 
1.0  million  shares  of  common  stock  for  $18.5  million.  At  December  31,  2007,  we  accrued 
accounts  payable  of  approximately  $0.8  million  associated  with  our  obligation  to  settle  late 
December  repurchases.  From  January  1,  2008  through  February  22,  2008,  we  repurchased  an 
additional  0.3  million  shares  for  $7.9  million  bringing  the  cumulative  repurchase  totals  to 
1.3  million  shares  at  a  cost  of  $26.4  million  under  the  current  program.  Under  a  previous 
repurchase  program  in  2005,  we  repurchased  2.0  million  shares  of  common  stock  for 
$34.1 million.

The  following  table  provides  information  regarding  the  Company’s  purchases  of  its  Common 
Stock, $0.01 par value, during the fourth quarter of 2007:

Total Number 
of Shares 
(or Units) 
Purchased 
as Part of 
Publicly  
Announced  

Maximum 
Number of 
(or Approximate 
Dollar Value) 
of Shares that 
May Yet Be 
Purchased 
Plans or  Under the Plans  

Programs 

or Programs(1)

Total 
Number 
of Shares 
(or Units) 
Purchased 

Average 
Price paid 
Per Share 
(or Unit) 

Period 

October 1, 2007 – October 31, 2007 
— 
November 1, 2007 – November 30, 2007  300,000 
657,026 
December 1, 2007 – December 31, 2007 

$  — 
$ 18.37 
$ 19.84 

— 
  300,000 
657,026 

$ 100,000,000
$  94,489,610
$  81,454,652

Total 

957,026 

$ 19.38 

957,026 

$  81,454,652

(1)	 	As	of	February	22,	2008,	we	have	repurchased	a	total	of	1.3	million	shares	of	our	common	stock	under	the	October	2007	authorization	

at	a	total	cost	of	approximately	$26.4	million.

37

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITeM 6. SelecTeD FInancIal D aTa
(in thousands, except per share data) 

Consolidated statements of operations data:

2007 

2006 

2005 

2004 

2003

Revenues:(a) 

Income (loss) from operations (b) 

Other income (c) 

Income tax (provision) benefit (d) 
Net income applicable  
  to common shareholders 
Net income per common  
  share—basic 
Net income per common  
  share—diluted 
Weighted average number  
  of common shares  
  outstanding—basic 
Weighted average number  
  of common shares  
  outstanding—diluted 

Consolidated balance sheet data:

Cash and cash equivalents 

Short-term investments 

Working capital 

Total assets 

Total debt 

Total shareholders’ equity 

$  480,466 

$  163,125 

$  103,685 

$  114,574

$  234,232 
$  23,054 
— 
$ 
$  (11,999) 

$  336,416 

$  17,087 

$ 

— 

$ 

— 

$  (124,389) 

$  34,434 

$  20,004 

$  225,222 

$  54,685 

$ 

$ 

0.42 

0.40 

$ 

$ 

4.22 

4.04 

$ 

$ 

1.01 

0.96 

$ 

$ 

$ 

$ 

$ 

$ 

(6,292)  $  29,541

— 

$  10,580

4,704 

$ 

(7,269)

89 

$  34,332

— 

$ 

0.62

— 

$ 

0.58

47,766 

53,426 

54,058 

55,264 

55,271

49,489 

55,778 

57,161 

59,075 

59,691

$  92,018 
85,449 
  214,229 
  534,885 
3,717 
$  137,067 

$  166,385 

$  27,877 

$  15,737 

$  20,877

97,581 

77,831 

  116,081 

85,050

  332,574 

  125,181 

  106,784 

  112,325

  564,075 

  299,537 

  241,920 

  205,165

1,572 

1,922 

1,884 

1,970

$  275,476 

$  174,314 

$  115,659 

$  97,485

(a)   In  2006,  we  recognized  $253  million  of  revenue  related  to  the  resolution  of  disputes  with  Nokia  regarding  our  1999  Patent  License 
Agreement. In third quarter 2004, we transitioned to reporting per-unit royalties in the period in which we receive our licensees’ royalty 
reports rather than in the period in which our licensees’ sales of covered products occur. As a result of this transition, our results for 2004 
include only three quarters of per-unit royalties.

(b)   In 2007, our income from operations included non recurring charges to accrue contingent liabilities associated with an award in our arbitration 
with Federal and the potential reimbursement for legal fees under our UK II matter with Nokia of $16.6 million and $7.8 million, respectively. 
In 2005 and 2004, our income (loss) from operations included charges of $1.5 million and $0.6 million, respectively, associated with actions 
to reposition the Company’s operations.

(c)   In 2003, we recognized as other income, $14 million from the settlement of our litigation with Ericsson, net of an estimated $3.4 million 

associated with a claim under an insurance agreement.

(d)   Our income tax provision in 2005 included a benefit of approximately $43.7 million, primarily related to the fourth quarter 2005 reversal 
of our Federal deferred tax asset valuation allowance. Our income tax provision in 2004 included a benefit of approximately $17 million 
related to the third quarter 2004 partial reversal of our Federal deferred tax asset valuation allowance. In 2003, our income tax provision 
was comprised primarily of non-U.S. withholding taxes and Alternative Minimum Tax. The volatility in our income tax provision, prior to 
recognizing increases in the value of our deferred tax assets, was primarily due to changes in the level of royalty revenue subject to non-U.S. 
withholding tax.

38

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITeM  7.  ManageMenT’S  DI ScUSSIon  anD  analYSIS  oF   
FInancIal  conD ITIon  anD   ReSUl TS  oF  oPeRa TIo nS

Overview

The  following  discussion  should  be  read  in  conjunction  with  the  Selected  Financial  Data,  the 
Consolidated  Financial  Statements  and  the  notes  thereto  contained  in  this  document.  Please 
refer  to  the  Glossary  of Terms  immediately  following  the Table  of  Contents  for  a  listing  and 
detailed description of the various technical, industry and other defined terms that are used in 
this annual report.

Business

We  design  and  develop  advanced  digital  wireless  technologies  for  use  in  digital  cellular  and 
wireless  IEEE  802  related  products. We  actively  participate  in  and  contribute  our  technology 
solutions  to  worldwide  organizations  responsible  for  the  development  and  approval  of 
Standards  to  which  digital  cellular  and  IEEE  802  compliant  products  are  built,  and  our 
contributions  are  regularly  incorporated  into  such  Standards. We  offer  licenses  to  our  patents 
to  equipment  producers  that  manufacture,  use  and  sell  digital  cellular  and  IEEE  802  related 
products.  In  addition,  we  offer  for  license  or  sale  our  SlimChip  family  of  mobile  broadband 
modem solutions (which includes modem IP know-how, baseband ICs and Reference Platforms) 
to  mobile  device  manufacturers,  semiconductor  companies  and  other  equipment  producers 
that manufacture, use and sell digital cellular. We have built our suite of technology and patent 
offerings  through  independent  development,  joint  development  with  other  companies  and 
selected acquisitions.

Our  goal  is  to  derive  revenue  on  every  3G  mobile  device  sold,  either  in  the  form  of  patent 
licensing  revenues,  product  related  revenues,  or  a  combination  of  these  elements.  In  recent 
years,  our  patent  license  agreements  have  contributed  the  majority  of  our  cash  flow  and 
revenues. As of December 2007, we recorded patent royalties on approximately one-third of all 
3G  mobile  devices  sold  worldwide.  In  addition,  our  technology  product  solutions  offer  an 
additional means to generate revenue from 3G mobile devices.

In  2007,  2006  and  2005  our  revenues  were  $234.2  million,  $480.5  million  and  $163.1  million, 
respectively and our recurring revenues were $219.5 million, $213.1 million and $152.9 million, 
respectively. The  increase  in  recurring  revenues  over  the  last  two  years  is  attributable  to  both 
an increase in the number of licensees and higher royalties from existing licensees, based on 
increased sales of covered 3G products.

Industry Overview

Our  revenue  and  cash  flows  are  dependent,  in  large  part,  on  our  licensees  sales  of  wireless 
products.  Over  the  course  of  the  last  ten  years,  the  cellular  communications  industry  has 
experienced  rapid  growth  worldwide. Total  worldwide  cellular  wireless  communications 
subscribers  rose  from  slightly  more  than  200  million  at  the  end  of  1997  to  approximately  2.6 
billion  at  the  end  of  2007.  In  several  countries,  mobile  telephones  now  outnumber  fixed-line 
telephones.  Market  analysts  expect  that  the  aggregate  number  of  global  wireless  subscribers 
could exceed 4.5 billion in 2012.

39

actual graph

For layout

1500

1000

500

0

Global Handset Sales by Technology(1)

1,500

1,000

500

0

2006 

2007 

2008 

2009 

2010 

2011 

2012

3G (WCDMA)(2) 

3G (CDMA)(3) 

2G/2.5G(4) 

Total 

92 

160 

747 

999 

167 

170 

785 

240 

188 

783 

344 

201 

731 

457 

204 

645 

590 

208 

542 

735

211

409

1,122 

1,211 

1,276 

1,306 

1,340 

1,355

(1)  Source: Strategy Analytics, Inc. July 2007. Data for 2007 through 2012 represents estimates of handset sales.
(2)  Includes: WCDMA/HSPA, LTE, and TD-SCDMA.
(3)  Includes: cdma2000 and its evolutions, such as EV-DO.
(4)  Includes: GSM/GPRS/EDGE and Analog, iDEN, TDMA, PHS and PDC.

The growth in new cellular subscribers, combined with existing customers choosing to replace 
their  mobile  phones,  helped  fuel  the  growth  of  mobile  phone  sales  from  approximately  115 
million  units  in  1997  to  over  one  billion  units  in  2007. We  believe  the  combination  of  a  broad 
subscriber base, continued technological change, and the growing dependence on the Internet, 
e-mail  and  other  digital  media  sets  the  stage  for  continued  growth  in  the  sales  of  wireless 
products  and  services  over  the  next  five  years.  For  these  same  reasons,  shipments  of 
3G-enabled phones, which represented approximately 25% of the market in 2006, are predicted 
to  increase  to  approximately  70%  of  the  market  by  2012.  Moreover,  recent  advances  in 
3G  technologies  that  support  devices  offering  higher  data  rates  have  met  with  rapid 
consumer uptake.

In  addition  to  the  advances  in  digital  cellular  technologies,  the  industry  has  also  made 
significant advances in non-cellular wireless technologies. In particular, IEEE 802.11 WLAN has 
gained momentum in recent years as a wireless broadband solution in the home, office and in 
public  areas.  IEEE  802.11  technology  offers  high-speed  data  connectivity  through  unlicensed 
spectrum  within  a  relatively  modest  operating  range.  Since  its  introduction  in  1998, 
semiconductor  shipments  of  products  built  to  the  IEEE  802.11  Standard  have  nearly  doubled 
every  year. While  relatively  small  compared  to  the  cellular  market  (approximately  300  million 
IEEE 802.11 wireless ICs shipped in 2007), the affordability and attractiveness of the technology 
has  helped  fuel  rapid  market  growth.  In  addition,  the  IEEE  wireless  Standards  bodies  are 
creating sets of Standards to enable higher data rates, provide coverage over longer distances 
and  enable  roaming. These  Standards  are  establishing  technical  specifications  for  high  data 
rates,  such  as  IEEE  802.16  (WiMAX)  as  well  as  technology  specifications  to  enable  seamless 
handoff between different air interfaces (IEEE 802.21).

We Have Substantially Replaced Expired 2G Patent License Revenue

The  amortization  of  $53  million  of  royalty  payments  associated  with  our  2G  patent  license 
agreement  with  NEC  Corporation  of  Japan  (NEC)  was  completed  in  February  2006. 
Telefonaktiebolaget LM Ericsson and Ericsson Inc.’s (Ericsson) obligation to pay royalties under 
its  2G/2.5G  patent  license  agreement  ceased  after  the  recent  remittance  of  its  final  fixed 
payment  of  $1.5  million  related  to  fourth  quarter  2006  covered  infrastructure  sales.  Sony 

40

 
 
 
 
 
 
Ericsson  Mobile  Communications AB’s  (Sony  Ericsson)  obligation  to  pay  royalties  under  its 
2G/2.5G  patent  license  agreement  ended  in  first  quarter  2007. Together,  these  three  2G/2.5G 
licenses contributed approximately $24.9 million or 12% of our recurring revenue in 2006 and 
$8.7 million or 4% of recurring revenue in 2007. We do not expect to recognize any additional 
revenue  in  20 08  related  to  the  above  noted  agreements  with  NEC,  Ericsson  and 
Sony Ericsson.

We  continue  to  place  substantial  focus  on  both  expanding  our  base  of  patent  licensees  and 
resolving  our  outstanding  patent  license  litigation  with  Samsung. We  also  continue  to  seek 
customers for our technology products and solutions. In 2007, we concluded new agreements 
and amendments to existing agreements that, combined with growth from existing licensees, 
contributed revenue that more than offset the reductions noted above.

Repurchase of Common Stock

In  2006  our  Board  of  Directors  authorized  the  repurchase  of  up  to  $350.0  million  of  our 
outstanding  common  stock.  In  October  2007,  our  Board  of  Directors  authorized  a  new  $100.0 
million  share  repurchase  program. The  Company  may  repurchase  shares  under  the  programs 
through open market purchases, pre-arranged trading plans or privately negotiated purchases. 
During  2006  we  repurchased  approximately  6.5  million  shares  of  common  stock  for  $192.5 
million. At  December  31,  2006,  we  accrued  accounts  payable  of  approximately  $7.6  million 
associated  with  our  obligation  to  settle  late  December  repurchases. We  completed  the  2006 
repurchase  program  in April  2007  through  the  repurchase  of  4.8  million  shares  of  common 
stock for $157.7 million. Under the October 2007 authorization, we repurchased approximately 
1.0  million  shares  of  common  stock  for  $18.5  million.  At  December  31,  2007,  we  accrued 
accounts  payable  of  approximately  $0.8  million  associated  with  our  obligation  to  settle  late 
December  repurchases.  From  January  1,  2008  through  February  22,  2008,  we  repurchased  an 
additional  0.3  million  shares  for  $7.9  million  bringing  the  cumulative  repurchase  totals  to 
1.3  million  shares  at  a  cost  of  $26.4  million  under  the  current  program.  Under  a  previous 
repurchase  program  in  2005,  we  repurchased  2.0  million  shares  of  common  stock  for 
$34.1 million.

Intellectual Property Rights Enforcement

From time-to-time, if we believe that a third party is required to license our patents in order to 
manufacture and sell certain digital cellular products and such third party has not done so, we 
might institute legal action against the third party. These legal actions typically take the form of 
a patent infringement lawsuit or an administrative proceeding such as a Section 337 proceeding 
before  the  U.S.  International Trade  Commission.  In  addition,  we  and  our  licensees,  in  the 
normal  course  of  business,  might  seek  to  resolve  disagreements  between  the  parties  with 
respect  to  the  rights  and  obligations  of  the  parties  under  the  applicable  license  agreement 
through arbitration or litigation.

In 2007, our patent litigation and arbitration costs increased to $36.9 million from $21.4 million 
in  2006. This  represented  55%  of  our  total  patent  administration  and  licensing  costs  of  $67.6 
million. Patent litigation and administration costs will vary depending upon activity levels and 
it is likely they will continue to be a significant expense for us in the future.

Development

Our  investments  in  the  development  of  advanced  digital  wireless  technologies  and  related 
products  include  maintaining  a  highly  specialized  engineering  team  and  providing  that  team 
with the equipment and advanced software platforms necessary to support the development of 
technologies.  Over  each  of  the  last  three  years,  our  cost  of  development  has  ranged  between 

41

44% and 47% of our total operating expenses exclusive of non-recurring contingency accruals 
and repositioning charges. The largest portion of our cost of development has been personnel 
costs. As  of  December  31,  2007,  we  employed  261  engineers,  93%  of  whom  hold  advanced 
degrees and 45 of those hold PhDs.

CRITICAL ACCOUNTING POLICIES AND ESTIMATES

Our consolidated financial statements are based on the selection and application of accounting 
principles,  generally  accepted  in  the  United  States  of  America,  which  require  us  to  make 
estimates and assumptions that affect the amounts reported in both our consolidated financial 
statements  and  the  accompanying  notes  thereto.  Future  events  and  their  effects  cannot  be 
determined  with  absolute  certainty. Therefore,  the  determination  of  estimates  requires  the 
exercise of judgment. Actual results could differ from these estimates and any such differences 
may  be  material  to  the  financial  statements.  Our  significant  accounting  policies  are  described 
in  Note  2  to  our  consolidated  financial  statements  and  are  included  in  Item  8  of  this  annual 
report. We believe the accounting policies that are of particular importance to the portrayal of 
our  financial  condition  and  results  and  that  may  involve  a  higher  degree  of  complexity  and 
judgment in their application compared to others, are those relating to patents, contingencies, 
revenue  recognition,  compensation  and  income  taxes.  If  different  assumptions  were  made  or 
different conditions had existed, our financial results could have been materially different.

Patents

We  capitalize  external  costs,  such  as  filing  fees  and  associated  attorneys’  fees,  incurred  to 
obtain issued patents and patent license rights. We expense costs associated with maintaining 
and defending patents subsequent to their issuance. We amortize capitalized patent costs on a 
straight-line basis over the estimated useful lives of the patents. Ten years represents our best 
estimate of the average useful life of our patents relating to technology developed directly by 
us. The ten year estimated useful life of internally generated patents is based on our assessment 
of such factors as the integrated nature of the portfolios being licensed, the overall makeup of 
the  portfolio  over  time  and  the  length  of  license  agreements  for  such  patents. The  estimated 
useful lives of acquired patents and patent rights, however, have been and will continue to be 
based  on  a  separate  analysis  related  to  each  acquisition  and  may  differ  from  the  estimated 
useful lives of internally generated patents. We assess the potential impairment to all capitalized 
net patent costs when events or changes in circumstances indicate that the carrying amount of 
our  patents  portfolio  may  not  be  recoverable. Amortization  expense  related  to  capitalized 
patent costs was $9.3 million, $7.8 million and $6.3 million in 2007, 2006 and 2005, respectively. 
As of December 31, 2007 and 2006, we had capitalized gross patent costs of $132.1 million and 
$106.2  million,  respectively,  which  were  offset  by  accumulated  amortization  of  $45.0  million 
and $35.7 million, respectively. Our capitalized gross patent costs in 2005 included $8.1 million 
of  patents  acquired  from  third  parties. The  weighted  average  estimated  useful  life  of 
our  capitalized  patent  costs  at  December  31,  2007  and  2006  was  11.0  years  and  11.2 
years, respectively.

Contingencies

We  recognize  contingent  assets  and  liabilities  in  accordance  with  Statement  of  Financial 
Accounting Standards (SFAS) No. 5 Accounting for Contingencies.

In second quarter 2007, we recorded a $16.6 million charge to increase a $3.4 million contingent 
liability  to  $20  million.  Subsequently  we  have  accrued  $0.7  million  of  post  judgment  interest 
expense. This  accrual  relates  to  an  arbitration  with  Federal  over  an  insurance  reimbursement 
agreement.  In  fourth  quarter  2007,  we  accrued  $7.8  million  for  the  potential  reimbursement  of 
legal fees associated with our UKII matter with Nokia.

42

Revenue Recognition

We derive the majority of our revenue from patent licensing. The timing and amount of revenue 
recognized from each licensee depends upon a variety of factors, including the specific terms 
of  each  agreement  and  the  nature  of  the  deliverables  and  obligations.  Such  agreements  are 
often  complex  and  multi-faceted. These  agreements  can  include,  without  limitation,  elements 
related  to  the  settlement  of  past  patent  infringement  liabilities,  up-front  and  non-refundable 
license  fees  for  the  use  of  patents  and/or  know-how,  patent  and/or  know-how  licensing 
royalties  on  covered  products  sold  by  licensees,  cross  licensing  terms  between  us  and  other 
parties,  the  compensation  structure  and  ownership  of  intellectual  property  rights  associated 
with contractual technology development arrangements, and advanced payments and fees for 
service  arrangements.  Due  to  the  combined  nature  of  some  agreements  and  the  inherent 
difficulty  in  establishing  reliable,  verifiable  and  objectively  determinable  evidence  of  the  fair 
value  of  the  separate  elements  of  these  agreements,  the  total  revenue  resulting  from  such 
agreements  may  sometimes  be  recognized  over  the  combined  performance  period.  In  other 
circumstances, such as those agreements involving consideration for past and expected future 
patent  royalty  obligations,  the  determining  factors  necessary  to  allocate  revenue  across  past, 
current, and future years may be difficult to establish. In such instances, after consideration of 
the  particular  facts  and  circumstances,  the  appropriate  recording  of  revenue  between  periods 
may  require  the  use  of  judgment.  Generally,  we  will  not  recognize  revenue  or  establish  a 
receivable related to payments that are due greater than twelve months from the balance sheet 
date.  In  all  cases,  revenue  is  only  recognized  after  all  of  the  following  criteria  are  met:  (1) 
written  agreements  have  been  executed;  (2)  delivery  of  technology  or  intellectual  property 
rights has occurred or services have been rendered; (3) fees are fixed or determinable; and (4) 
collectibility of fees is reasonably assured.

Patent License Agreements

Upon  signing  a  patent  license  agreement,  we  provide  the  licensee  permission  to  use  our 
patented inventions in specific applications. We have no material future obligations associated 
with such licenses, other than, in some instances, to provide such licensees with notification of 
future  license  agreements  pursuant  to  most  favored  licensee  rights.  Under  our  patent  license 
agreements,  we  typically  receive  one  or  a  combination  of  the  following  forms  of  payment  as 
consideration  for  permitting  our  licensees  to  use  our  patented  inventions  in  their  applications 
and products:

Consideration  for  Prior  Sales:  Consideration  related  to  a  licensee’s  product  sales  from  prior 
periods  may  result  from  a  negotiated  agreement  with  a  licensee  that  utilized  our  patented 
inventions  prior  to  signing  a  patent  license  agreement  with  us  or  from  the  resolution  of  a 
disagreement  or  arbitration  with  a  licensee  over  the  specific  terms  of  an  existing  license 
agreement.  In  each  of  these  cases,  we  record  the  consideration  as  revenue. We  may  also 
receive consideration from the settlement of patent infringement litigation where there was no 
prior  patent  license  agreement. We  record  the  consideration  related  to  such  litigation  as  
other income.

Fixed  Fee  Royalty  Payments:  Up-front,  non-refundable  royalty  payments  that  fulfill  the 
licensee’s obligations to us under a patent license agreement, for a specified time period or for 
the term of the agreement.

Prepayments: Up-front, non-refundable royalty payments towards a licensee’s future obligations 
to  us  related  to  its  expected  sales  of  covered  products  in  future  periods.  Our  licensees’ 
obligations to pay royalties extend beyond the exhaustion of their Prepayment balance. Once a 
licensee  exhausts  its  Prepayment  balance,  we  may  provide  them  with  the  opportunity  to 
make  another  Prepayment  toward  future  sales  or  it  will  be  required  to  make  Current 
Royalty Payments.

43

Current Royalty Payments: Royalty payments covering a licensee’s obligations to us related to 
its sales of covered products in the current contractual reporting period.

We  recognize  revenues  related  to  Consideration  for  Prior  Sales  when  we  have  obtained  a 
signed agreement, identified a fixed or determinable price and determined that collectibility is 
reasonably  assured. We  recognize  revenues  related  to  Fixed  Fee  Royalty  Payments  on  a 
straight-line  basis  over  the  effective  term  of  the  license. We  utilize  the  straight-line  method 
because we have no future obligations under these licenses and we cannot reliably predict in 
which  periods,  within  the  term  of  a  license,  the  licensee  will  benefit  from  the  use  of  our 
patented inventions.

Licensees that either owe us Current Royalty Payments or have Prepayment balances provide 
us with quarterly or semi-annual royalty reports that summarize their sales of covered products 
and their related royalty obligations to us. We typically receive these royalty reports subsequent 
to  the  period  in  which  our  licensees’  underlying  sales  occurred.  Consideration  for  Prior  Sales, 
the  exhaustion  of  Prepayments  and  Current  Royalty  Payments  are  often  calculated  based  on 
related per-unit sales of covered products.

During 2007, we recognized revenue of $5.2 million related to unpaid patent licensee royalties. 
We based our recognition of this revenue on royalty reports received, despite the fact that the 
licensee has expressed its belief that it does not have a current payment obligation. We believe 
that we are entitled to these royalty payments and the eventual collection of these amounts is 
reasonably  assured.  If  we  had  determined  that  there  was  a  reasonable  chance  that  we  would 
not collect these royalties, we would have recorded up to $5.2 million less revenue in 2007.

Technology Solutions Revenue

Technology  solutions  revenue  consists  primarily  of  revenue  from  software  licenses  and 
engineering  services.  Software  license  revenues  are  recognized  in  accordance  with  the 
American  Institute  of  Certified  Public Accountants  Statement  of  Position  (SOP)  97-2  Software 
Revenue  Recognition  and  SOP  98-9  Modification  of  SOP  97-2,  Software  Revenue  Recognition. 
When  the  arrangement  with  the  customer  includes  significant  production,  modification  or 
customization  of  the  software,  we  recognize  the  related  revenue  using  the  percentage-of-
completion method in accordance with SOP 81-1 Accounting for Performance of Construction-
Type  and  Certain  Production-Type  Contracts.  Under  this  method,  revenue  and  profit  are 
recognized throughout the term of the contract, based on actual labor costs incurred to date as 
a  percentage  of  the  total  estimated  labor  costs  related  to  contract.  Changes  in  estimates  for 
revenues, costs and profits are recognized in the period in which they are determinable. When 
such estimates indicate that costs will exceed future revenues and a loss on the contract exists, 
a provision for the entire loss is recognized at that time.

We recognize revenues associated with engineering service arrangements that are outside the 
scope  of  SOP  81-1  on  a  straight-line  basis  under  Staff Accounting  Bulletin  No.  104  Revenue 
Recognition, unless evidence suggests that the revenue is earned or obligations are fulfilled in 
a different pattern, over the contractual term of the arrangement or the expected period during 
which those specified services will be performed, whichever is longer. In such cases we often 
recognize  revenue  using  proportional  performance  and  measure  the  progress  of  our 
performance  based  on  the  relationship  between  incurred  contract  costs  and  total  estimated 
contract costs. Our most significant cost has been labor and we believe both labor hours and 
labor  cost  provide  a  measure  of  the  progress  of  our  services. The  effect  of  changes  to  total 
estimated  contract  costs  is  recognized  in  the  period  such  changes  are  determined.  Estimated 
losses, if any, are recorded when the loss first becomes probable and reasonably estimable.

44

When technology solutions agreements include royalty payments, we recognize revenue from 
the  royalty  payments  using  the  same  methods  described  above  under  our  policy  for 
recognizing revenue from patent license agreements.

Deferred Charges

From time-to-time, we use sales agents to assist us in our licensing activities. We often pay a 
commission related to successfully negotiated license agreements. The commission rate varies 
from agreement to agreement. Commissions are normally paid shortly after our receipt of cash 
payments associated with the patent license agreements.

We  defer  recognition  of  commission  expense  related  to  both  Prepayments  and  Fixed  Fee 
Royalty Payments and amortize these expenses in proportion to our recognition of the related 
revenue.  In  2007,  2006  and  2005,  we  paid  cash  commissions  of  approximately  $1.7  million, 
$18.8  million  and  $3.1  million,  respectively,  and  recognized  commission  expense  of  $4.7 
million,  $8.4  million,  and  $4.5  million,  respectively,  as  part  of  patent  administration  and 
licensing expense. At December 31, 2007, 2006 and 2005 we had deferred commission expense 
of  approximately  $4.1  million,  $4.1  million  and  $1.4  million,  respectively,  included  within 
prepaid and other current assets and $8.8 million, $12.0 million and $4.4 million, respectively, 
included within other non-current assets.

Compensation Programs

We  use  a  variety  of  compensation  programs  to  both  attract  and  retain  employees  and  more 
closely  align  employee  compensation  with  Company  performance. These  programs  include, 
but are not limited to, an annual bonus tied to performance goals, cash awards to inventors for 
filed  patent  applications  and  patent  issuances,  restricted  stock  unit  (RSU)  awards  for  non-
managers  and  a  long-term  compensation  program  (LTCP),  covering  managers,  that  includes 
RSUs  and  a  performance-based  cash  incentive  component. The  LTCP  was  originally  designed 
to  include  three  year  cycles  that  overlap  by  one  year.  However,  the  first  cycle  under  the 
program covered the period from April 1, 2004 through January 1, 2006 (Cycle 1). The second 
cycle originally covered the period from January 1, 2005 through January 1, 2008 (Cycle 2). In 
second  quarter  2005,  the  Compensation  Committee  of  our  Board  of  Directors  amended  the 
LTCP  to  revise  the  performance-based  cash  award  portion  of  Cycle  2  to  cover  a  3-1/2  year 
period from July 1, 2005 through January 1, 2009 (Cycle 2a), and authorized a pro-rated interim 
payment,  of  approximately  $0.9  million,  related  to  first  half  2005. The  third  RSU  cycle 
(RSU  Cycle  3)  began  on  January  1,  2007  and  runs  through  January  1,  2010. The  third 
performance-based  cash  award  cycle  (Cash  Cycle  3)  began  on  January  1,  2008  and  runs 
through January 1, 2011.

We  recognized  $3.9  million,  $3.5  million  and  $6.5  million  of  compensation  expense  in  2007, 
2006  and  2005,  respectively,  related  to  the  performance-based  cash  incentive  under  our  LTCP, 
discussed  below. We  also  recognized  share-based  compensation  expense  of  $9.8  million,  $7.0 
million  and  $9.8  million  in  2007,  2006  and  2005,  respectively. The  majority  of  the  share-based 
compensation  expense,  for  all  years,  related  to  RSU  awards  granted  to  managers  under  our 
LTCP. In 2006, share-based compensation expense also included a non-recurring charge of $1.0 
million to correct our accounting related to share-based grants awarded to two non-employee, 
non-director  consultants  in  1998. We  previously  accounted  for  these  non-employee  grants 
similarly to share-based employee grants, using the intrinsic value method. The charge reflects 
the  incremental  cost  that  would  have  been  recognized  by  correctly  treating  these  grants  as 
non-employee grants using the fair value method. Due to the structure of the different cycles in 
the LTCP, we expect that 2008 expenses associated with the performance-based cash incentive 
and  RSUs  will  be  approximately  $0.3  million  more  than  2007.  However,  the  amount  recorded 

45

could either increase or decrease dependent upon both the number of employees that qualify 
for  the  LTCP  and  our  future  assessment  of  the  expected  attainment  of  pre-established 
performance goals.

At December 31, 2007, accrued compensation expenses associated with the performance-based 
cash incentive was based on an estimated 100% payout for Cycle 2a. Under the program, 100% 
achievement of the goals set by the Compensation Committee of the Board of Directors results 
in a 100% payout of the performance-based cash incentive target amounts. For each 1% change 
above  or  below  100%  achievement,  the  payout  is  adjusted  by  2.5  percentage  points  with  a 
maximum  payout  of  225%  and  no  payout  for  performance  that  falls  below  80%  of  target 
results. The following table provides examples of the performance-based cash incentive payout 
that would be earned based on various levels of goal achievement:

Goal Achievement 

Less than 80% 

80% 

100% 

120% 

150% or greater 

Payout

0%

50%

100%

150%

225%

If  we  had  assumed  that  the  Company’s  Cycle  2a  goal  achievement  would  be  either  120%  or 
80%,  we  would  have  accrued  either  $4.6  million  more  or  less,  respectively,  of  related 
compensation  expense  through  December  31,  2007.  However,  our  estimated  accrual  could 
either increase or decrease in the future dependent upon our future assessment of the expected 
attainment against pre-established performance goals.

During 2006, fourteen members of our senior management voluntarily exchanged approximately 
56,000 Cycle 2 time-based RSUs for an equal number of Cycle 2 performance-based RSUs. The 
Company  ultimately  satisfied  these  performance-based  RSUs  in  early  2008  through  the 
issuance  of  approximately  11,000  shares,  based  upon  senior  management’s  performance 
against  specified  goals.  During  2006,  the  LTCP  was  amended  such  that,  beginning  with  the 
January  1,  2007  grant,  executives  now  receive  50%  of  their  RSU  grant  as  performance-based 
RSUs  and  50%  as  time-based.  Under  the  amendment  the  Company’s  managers  now  receive 
25% of their RSU grant as performance-based RSUs and 75% as time-based.

Under the program, 100% achievement of the goals set by the Compensation Committee of the 
Board  of  Directors  results  in  a  100%  payout  of  the  performance-based  RSU  incentive  target 
amounts. For each 1% change above or below 100% achievement, the payout is adjusted by 4 
percentage points with a maximum payout of 300%. For performance that falls below 80% of 
target, no share payout would occur. The following table provides examples of the performance-
based RSU payout that would be earned based on various levels of goal achievement:

Goal Achievement 

Less than 80% 

80% 

100% 

120% 

150% or greater 

Payout

0%

20%

100%

180%

300%

At  December  31,  2007,  we  did  not  meet  criteria  specified  by  SFAS  No.123R  to  accrue 
performance-based  equity  compensation  associated  with  the  Cycle  3  RSU  grant.  If  we  had 
determined  that  we  met  such  criteria,  we  would  have  accrued  $1.2  million  of  related 
compensation  expense  through  December  31,  2007. We  will  establish  an  accrual  for  these 

46

performance  RSUs  in  the  future  if  our  future  assessment  of  the  expected  attainment  against 
pre-established  performance  goals  meets  certain  criteria  for  performance-based  share 
compensation established by SFAS No.123R.

In fourth quarter 2005, we accelerated the vesting of all stock options which were scheduled to 
vest  on  or  after  January  1,  2006. As  a  result,  options  to  purchase  approximately  0.8  million 
shares  of  our  common  stock,  which  would  otherwise  have  vested  at  various  times  over  the 
next six years, became fully vested. We recorded a charge of approximately $0.2 million related 
to this acceleration. The charge was based, in part, on our estimate that approximately 12% of 
the  accelerated  options  would  have  been  forfeited  had  the  acceleration  not  occurred. The 
charge  would  have  been  approximately  $1.6  million  if  we  had  estimated  that  100%  of  the 
options  would  have  been  forfeited  had  the  acceleration  not  occurred. The  acceleration 
eliminated  a  non-cash  charge  of  approximately  $7.1  million  that  would  have  been  recognized 
under  SFAS  No.  123  (R)  Share-Based  Payments  between  2006  and  2011. We  will  continue  to 
recognize expense for our remaining equity-based incentive programs.

Income Taxes

Income  taxes  are  accounted  for  under  the  asset  and  liability  method.  Under  this  method, 
deferred  tax  assets  and  liabilities  are  recognized  for  the  estimated  future  tax  consequences 
attributable  to  differences  between  the  financial  statement  carrying  values  of  existing  assets 
and  liabilities  and  their  respective  tax  bases,  and  operating  loss  and  tax  credit  carryforwards. 
Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in 
which  those  temporary  differences  are  expected  to  be  recovered  or  settled. The  effect  of  a 
change  in  tax  rates  on  deferred  tax  assets  and  liabilities  is  recognized  in  the  Consolidated 
Statement of Operations in the period that includes the enactment date. A valuation allowance 
is  recorded  to  reduce  the  carrying  amounts  of  deferred  tax  assets  if  management  has 
determined that it is more likely than not that such assets will not be realized.

In  addition,  the  calculation  of  tax  liabilities  involves  significant  judgment  in  estimating  the 
impact of uncertainties in the application of complex tax laws. We are subject to examinations 
by  the  Internal  Revenue  Service  (IRS)  and  other  taxing  jurisdictions  on  various  tax  matters, 
including challenges to various positions we assert in our filings. Effective January 1, 2007 the 
Company adopted FASB Interpretation No. 48, Accounting for Uncertainty in Income Taxes (FIN 
48). This  interpretation  clarifies  the  criteria  for  recognizing  income  tax  benefits  under  FASB 
Statement  No.  109, Accounting  for  Income Taxes,  and  requires  additional  disclosures  about 
uncertain tax positions. Under FIN 48 the financial statement recognition of the benefit for a tax 
position is dependent upon the benefit being more likely than not to be sustainable upon audit 
by  the  applicable  tax  authority.  If  this  threshold  is  met,  the  tax  benefit  is  then  measured  and 
recognized  at  the  largest  amount  that  is  greater  than  50  percent  likely  of  being  realized  upon 
ultimate settlement. As a result of the implementation, we recognized a $2.1 million increase to 
reserves for uncertain tax positions. This increase, related to federal tax credits, was accounted 
for  as  a  reduction  to  retained  earnings  on  the  balance  sheet.  Including  this  cumulative  effect 
adjustment,  on  January  1,  2007  we  had  $6.2  million  of  net  federal  tax  benefits  that,  if 
recognized,  would  reduce  our  effective  income  tax  rate  in  the  period  recognized.  Prior  to  the 
adoption of FIN 48, we accrued for tax contingencies that had met the probable and reasonably 
estimable criteria. As of December 31, 2007 and 2006, there are certain tax contingencies that 
did  not  meet  the  applicable  criteria  to  record  an  accrual.  In  the  event  that  the  IRS  or  another 
taxing jurisdiction levies an assessment in the future, it is possible the assessment could have 
an adverse effect on our consolidated financial condition or results of operations.

Based on judgments associated with determining the annual limitation applicable to us under 
Internal  Revenue  Code  Section  382,  we  did  not  include  all  federal  NOL  carryforwards  in  the 
computation  of  our  gross  deferred  tax  assets. We  also  excluded  a  portion  of  the  federal 

47

research  and  experimental  credits  that  may  be  available  to  us  from  the  computation  of  gross 
deferred  tax  assets  based  upon  estimates  of  the  final  credit  that  may  be  realized.  Had  we 
included  all  federal  NOL  carryforwards  and  research  and  experimental  credits  in  the 
computation of gross deferred tax assets, the gross deferred tax assets at December 31, 2006 
would  have  been  approximately  $10.2  million  greater  and  our  income  tax  provision  would 
have  decreased  by  the  same  amount. We  recorded  a  FIN  48  reserve  of  approximately  $3.6 
million during 2007 upon the utilization of these gross deferred tax assets.

In 2006, we began to credit foreign source withholding tax payments against our U.S. Federal 
Income Tax  Liability.  Prior  to  2006,  we  recognized  deferred  tax  assets  related  to  deferred 
revenue  for  both  U.S.  Federal  Income Tax  purposes  and  non-U.S.  jurisdictions  that  assess  a 
source withholding  tax  on related  royalty  payments. We expense these deferred tax assets as 
we recognize the revenue and the related temporary differences reverse.

Between  1999  and  2005  we  paid  approximately  $30.7  million  of  foreign  taxes.  During  this 
period  we  were  in  a  net  operating  loss  position  for  U.S.  federal  income  tax  purposes  and 
elected  to  deduct  these  foreign  tax  payments  as  expenses  on  our  U.S.  federal  income  tax 
returns rather than take them as foreign tax credits. We elected this strategy because a) we had 
no  U.S.  cash  tax  obligations  at  the  time  and  b)  net  operating  losses  can  be  carried  forward 
significantly  longer  than  foreign  tax  credits. We  utilized  most  of  our  net  operating  losses  in 
2006  and  began  to  generate  U.S  cash  tax  obligations. At  that  time,  we  began  to  treat  our 
foreign tax payments as foreign tax credits on our U.S. federal income tax return.

We are currently evaluating the possibility of amending our U.S. federal income tax returns for 
the periods 1999–2005 to determine if we are able to take the foreign tax payments we made 
during  that  period  as  foreign  tax  credits  instead  of  deductions. The  process  to  amend  these 
returns is complicated including aggregating information that was not previously required and 
may  not  be  available  and  involves  tax  treaty  competent  authority  procedures  including  both 
U.S.  and  foreign  tax  authorities.  It  is  possible  that  we  may  be  unable  to  establish  a  basis  to 
support  amending  the  returns,  but  it  is  estimated  that  a  maximum  benefit  could  be  a  refund 
claim  of  approximately  $20  million. We  can  not  yet  predict  the  amount,  if  any,  of  potential 
refund  and  we  do  not  anticipate  being  in  a  position  to  file  any  amended  returns  until  2009, 
although  it  is  possible  that  we  could  file  amended  returns  sooner.  No  benefit  has  been 
recorded for this contingent gain.

SIgnIFIcanT  agReeMenTS  anD eVenTS

2005 Repositioning

In August 2005, we announced plans to close our Melbourne, Florida design facility. We ceased 
development  activity  at  this  facility  in  third  quarter  2005  and  relocated  certain  development 
efforts and personnel to other Company locations. We closed this facility in fourth quarter 2005. 
On  the  date  of  the  announced  closing,  there  were  thirty-three  full  or  part-time  employees  at 
this  facility,  of  which  five  full-time  employees  accepted  offers  of  continued  employment 
elsewhere  within  our  organization. We  estimate  the  repositioning  resulted  in  annual  pre-tax 
cost savings of approximately $6.0 million.

In  connection  with  the  closure,  we  recognized  repositioning  charges  totaling  approximately 
$1.5  million  in  2005,  comprised  of  severance  and  relocation  costs  of  $1.0  million  and  facility 
closing  costs  of  $0.5  million. The  facility  closing  costs  include  lease  termination  costs,  fixed 
asset  writeoffs  and  costs  to  wind  down  the  facility. We  believe  that  our  financial  obligations 
associated with this repositioning are complete.

48

Acquisition of Patents

In  2005,  we  acquired,  for  a  purchase  price  of  approximately  $8.1  million,  selected  patents, 
intellectual  property  blocks  and  related  assets  from  an  unrelated  third  party. These  assets  are 
designed  to  improve  the  range,  throughput  and  reliability  of  wireless  LAN  and  other  wireless 
technology  systems. The  purchase  price  was  allocated  almost  entirely  to  patent  assets  with  a 
nominal amount being allocated to other assets. Based on our assessment in connection with 
the  asset  acquisition,  we  are  amortizing  these  patents  over  their  expected  useful  lives  of 
approximately 15 years.

New Accounting Standards

SFAS No. 157

In  September  2006,  the  Financial Accounting  Standard  Board  (FASB)  issued  Statement  of 
Financial Accounting  Standard  (SFAS)  No.  157,  Fair Value  Measurements,  which  defines  fair 
value,  establishes  a  framework  for  measuring  fair  value  in  generally  accepted  accounting 
principles,  and  expands  disclosures  about  fair  value  measurements. This  statement  does  not 
require any new fair value measurements, but provides guidance on how to measure fair value 
by providing a fair value hierarchy used to classify the source of the information. For financial 
assets  and  liabilities,  SFAS  No.  157  is  effective  for  us  beginning  January  1,  2008.  In  February 
2008,  the  FASB  deferred  the  effective  date  of  SFAS  No.  157  for  all  non-financial  assets  and 
non-financial  liabilities,  except  those  that  are  recognized  or  disclosed  at  fair  value  in 
the  financial  statements  on  a  recurring  basis  (at  least  annually)  until  January  1,  2009. 
We  believe  the  adoption  of  SFAS  157  will  not  have  a  material  impact  on  our  consolidated 
financial statements.

SFAS No. 159

In February 2007, the FASB issued SFAS No. 159, The Fair Value Option for Financial Assets and 
Financial  Liabilities,  which  provides  companies  with  an  option  to  report  selected  financial 
assets  and  liabilities  at  fair  value  in  an  attempt  to  reduce  both  complexity  in  accounting  for 
financial  instruments  and  the  volatility  in  earnings  caused  by  measuring  related  assets  and 
liabilities  differently. This  Statement  is  effective  for  us  beginning  January  1,  2008. We  do  not 
anticipate  electing  the  SFAS  159  option  for  our  existing  financial  assets  and  liabilities  and 
therefore  do  not  expect  the  adoption  of  SFAS  159  to  have  any  impact  on  our  consolidated 
financial statements.

SFAS No. 141-R

In  December  2007,  the  FASB  issued  SFAS  No.  141-R,  Business  Combinations  which  revised 
SFAS  No.  141,  Business  Combinations. This  pronouncement  is  effective  for  us  beginning 
January  1,  2009.  Under  SFAS  No.  141,  organizations  utilized  the  announcement  date  as  the 
measurement  date  for  the  purchase  price  of  the  acquired  entity.  SFAS  No.  141-R  requires 
measurement at the date the acquirer obtains control of the acquiree, generally referred to as 
the  acquisition  date.  SFAS  No.  141-R  will  have  a  significant  impact  on  the  accounting  for 
transaction costs, restructuring costs as well as the initial recognition of contingent assets and 
liabilities assumed during a business combination. Under SFAS No. 141-R, adjustments to the 
acquired entity’s deferred tax assets and uncertain tax position balances occurring outside the 
measurement  period  are  recorded  as  a  component  of  the  income  tax  expense,  rather  than 
goodwill. As  the  provisions  of  SFAS  No.  141-R  are  applied  prospectively,  the  impact  to  the 
Registrants cannot be determined until the transactions occur.

49

lITIgaTIon  anD legal PR oceeDIngS

Samsung and Nokia U.S. International Trade Commission Proceedings and  
Related Delaware District Court Proceedings

In  March  2007,  InterDigital,  Inc.’s  wholly-owned  subsidiaries  InterDigital  Communications,  LLC 
and  InterDigital Technology  Corporation  (collectively,  the “Company,” “InterDigital,” “we,”  or 
“our”)  filed  a  Complaint  against  Samsung  Electronics  Co.  Ltd.  and  certain  of  its  affiliates 
(collectively,  “Samsung”)  in  the  United  States  International Trade  Commission  (“USITC”) 
alleging  that  Samsung  engages  in  unfair  trade  practices  by  selling  for  importation,  importing 
into the United States, and selling after importation certain 3G handsets and components that 
infringe  three  of  InterDigital’s  patents.  In  May  2007  and  December  2007,  a  fourth  patent  and 
fifth  patent,  respectively,  were  added  to  our  Complaint  against  Samsung. The  Complaint 
against  Samsung  seeks  an  exclusion  order  barring  from  entry  into  the  U.S.  infringing  3G 
WCDMA  handsets  and  components  that  are  imported  by  or  on  behalf  of  Samsung.  Our 
Complaint  also  seeks  a  cease-and-desist  order  to  bar  sales  of  infringing  Nokia  products  that 
have already been imported into the United States.

In addition, on the same date as our filing of the Samsung USITC action referenced above, we 
also filed a Complaint in the United States District Court for the District of Delaware (“Delaware 
District  Court”)  alleging  that  Samsung’s  3G WCDMA  handsets  infringe  the  same  three 
InterDigital  patents  identified  in  the  original  Samsung  USITC  Complaint. The  U.S.  trade  laws 
provide  for  a  mandatory  stay  of  parallel  district  court  proceedings  at  the  request  of  a 
respondent.  In  June  2007,  the  Delaware  District  Court  entered  a  Stipulated  Order  staying  this 
Delaware  District  Court  proceeding  against  Samsung. The  Stipulated  Order  was  agreed  to  by 
the  parties. The  Stipulated  Order  stays  the  proceeding  until  the  USITC’s  determination  in  this 
matter  becomes  final. The  Delaware  District  Court  has  permitted  InterDigital  to  add  the  fourth 
and  fifth  asserted  patents  asserted  against  Samsung  in  the  USITC  action  to  this  stayed 
Delaware action.

In  August  2007,  we  filed  a  USITC  Complaint  against  Nokia  Corporation  and  Nokia,  Inc. 
(collectively, “Nokia”)  alleging  that  Nokia  engaged  in  an  unfair  trade  practice  by  making  for 
importation  into  the  United  States,  importing,  and  selling  after  importation  certain  3G  mobile 
handsets  and  components  that  infringe  two  of  InterDigital’s  patents.  In  November  2007  and 
December  2007,  a  third  patent  and  fourth  patent,  respectively,  were  added  to  our  Complaint 
against  Nokia. The  Complaint  against  Nokia  seeks  an  exclusion  order  barring  from  entry  into 
the U.S. infringing 3G mobile handsets and components that are imported by or on behalf of 
Nokia.  Our  Complaint  also  seeks  a  cease-and-desist  order  to  bar  further  sales  of  infringing 
Nokia products that have already been imported into the United States.

In addition, on the same date as our filing of the Nokia USITC action referenced above, we also 
filed  a  Complaint  in  the  Delaware  District  Court  alleging  that  Nokia’s  3G  mobile  handsets  and 
components  infringe  the  same  two  InterDigital  patents  identified  in  the  original  Nokia  USITC 
Complaint. This  Delaware  action  was  also  stayed  on  January  10,  2008,  pursuant  to  the 
mandatory,  statutory  stay  of  parallel  district  court  proceedings  at  the  request  of  a  respondent 
in  an  ITC  Investigation. Thus,  this  Delaware  action  is  stayed  until  the  USITC’s  determination 
in  this  matter  becomes  final. The  Delaware  District  Court  has  permitted  InterDigital  to  add 
the  third  and  fourth  patents  asserted  against  Nokia  in  the  USITC  action  to  this  stayed 
Delaware action.

Nokia, joined by Samsung, moved to consolidate the Samsung and Nokia ITC proceedings. On 
October 24, 2007, the Honorable Paul J. Luckern, the Administrative Law Judge overseeing the 
two  USITC  proceedings  against  Samsung  and  Nokia,  respectively,  issued  an  Order  to 

50

consolidate  the  two  pending  investigations.  Pursuant  to  the  Order,  the  schedules  for  both 
investigations  have  been  revised  to  consolidate  proceedings  and  set  a  unified  evidentiary 
hearing  on April  21-28,  2008,  the  filing  of  a  single  initial  determination  by  Judge  Luckern  by 
July  11,  2008,  and  a Target  Date  for  the  consolidated  investigations  of  November  12,  2008,  by 
which date the USITC should issue its final determination.

On  December  4,  2007,  Nokia  moved  for  an  order  terminating,  or  alternatively,  staying  the 
USITC investigation as to Nokia, on the ground that Nokia and InterDigital must first arbitrate a 
dispute as to whether Nokia is licensed under the patents asserted by InterDigital against Nokia 
in the USITC investigation. On January 8, 2008, Judge Luckern issued an order denying Nokia’s 
motion and holding that Nokia has waived its arbitration defense by instituting and participating 
in the Investigation and other legal proceedings. On February 13, 2008, Nokia filed an action in 
the  U.S.  District  Court  for  the  Southern  District  of  New York,  seeking  to  preliminarily  enjoin 
InterDigital  from  proceeding  with  the  USITC  action  with  respect  to  Nokia,  in  spite  of  Judge 
Luckern’s  ruling  denying  Nokia’s  motion  to  terminate  the  Investigation.  Nokia  raises  in  this 
preliminary  injunction  action  the  same  arguments  it  raised  in  its  motion  to  terminate  the  ITC 
Investigation,  namely  that  InterDigital  allegedly  must  first  arbitrate  its  dispute  with  Nokia  and 
that  Nokia  has  not  waived  this  defense. The  Court  has  scheduled  a  preliminary  injunction 
hearing for March 20, 2008.

On February 8, 2008, Nokia filed a motion for summary determination that InterDigital cannot 
show that a domestic industry exists in the United States as required to obtain relief. Samsung 
joined  this  motion.  InterDigital  has  opposed  this  motion.  On  February  14  and  26,  2008, 
InterDigital filed its own motions for summary determination regarding the domestic industry 
requirement.  No  schedule  has  been  set  by  Judge  Luckern  as  to  when  these  motions  will 
be decided.

On  February  27,  2008,  Nokia  filed  a  motion  to  extend  the Target  Date  in  the  ITC  proceeding. 
InterDigital intends to vigorously oppose this motion.

Nokia UKII Action

In July 2005, Nokia filed a claim in the English High Court of Justice, Chancery Division, Patents 
Court  (“English  High  Court”)  against  ITC  seeking  a  Declaration  that  thirty-one  of  ITC’s  UMTS 
European Patents registered in the UK are not essential IPR for the 3GPP Standard (“UKII”).

On December 21, 2007, the English High Court issued a judgment finding that European Patent 
(UK)  0,515,610  (the  ‘610  patent),  owned  by  InterDigital Technology  Corporation,  is  essential  to 
the 3G UMTS WCDMA European standard promulgated by the European Telecommunications 
Standards  Institute  (ETSI)  and  that  this  patented  invention  is  infringed  by  carrying  out  the 
method  described  in  the  standard. The  ‘610  patent  relates  to  open  loop  power  control,  a 
fundamental  aspect  of  3G  technology.  Foreign  counterparts  having  identical  or  similar  claim 
language to the ‘610 patent have been issued in many parts of the world, including the United 
States,  Canada,  Germany,  France,  Spain,  Italy,  and  Sweden. The  judicial  determination  of 
essentiality  is  in  addition  to  Nokia’s  withdrawal  of  its  challenge  to  the  essentiality  of  another 
patent,  European  Patent  (UK)  0,515,675  relating  to  pilot  codes,  effectively  conceding  that  that 
patent is essential as well.

In the judgment, the English High Court ruled that one claim of the ‘610 patent was essential. 
The English High Court ruled that a second claim of the ‘610 patent, as well as three additional 
patents,  were  not  essential. A  declaration  of  non-essentiality  is  not  a  finding  that  a  particular 
third  party  product  does  not  infringe  an  InterDigital  patent,  and  no  products  were  in  issue 
in  these  proceedings. The  judgment  is  subject  to  appeal  by  either  party  if  permission  to 
appeal is granted.

51

There will be a further hearing in April 2008 to determine the form of order to be made as well 
as any orders relating to attorneys’ fees. Pursuant to UK law, it is customary for a party winning 
a motion or the overall outcome of a case to receive reimbursement of attorneys fees from the 
other  party.  Depending  on  the  outcome  of  this  hearing,  this  could  result  in  a  substantial 
amount for the Company, Nokia or neither party. At December 31, 2007, we accrued $7.8 million 
for the potential reimbursement of legal fees associated with this matter.

Nokia UKIII Action

In  December  2006,  ITC  filed  a  claim  in  the  English  High  Court  against  Nokia  seeking  a 
Declaration  that  thirty-four  UMTS  European  Patents  and  one  UMTS  GB  national  patent  all 
registered in the UK and declared by Nokia to be essential IPR for the 3GPP Standard are not 
essential.  Nokia  has  since  admitted  in  the  proceedings  that  five  of  those  patents  are  not 
essential to the Standard. Since the proceedings began, an additional five of the patents have 
been  transferred  to  Nokia  Siemens  Networks  Oy,  which  has  been  joined  to  the  action  as  a 
second  defendant  and  which  has  admitted  that  one  of  the  five  patents  is  non-essential. The 
Court  has  scheduled  a  preliminary  hearing  for  no  earlier  than  June  2008  with  respect  to 
whether  the  Judge  should  exercise  his  discretion  to  issue  the  declaration  being  sought  by 
InterDigital. Trial in this action is scheduled to begin in the fourth quarter of 2008.

Nokia Delaware Proceeding

In  January  2005,  Nokia  and  Nokia,  Inc.  (collectively, “Nokia”)  filed  a  Complaint  in  the  United 
States District Court for the District of Delaware (“Delaware District Court”) against InterDigital 
Communications,  LLC  (“IDC”)  and  our  wholly-owned  subsidiary,  InterDigital Technology 
Corporation  (“ITC”)  (IDC  and  ITC  collectively  referred  to  as “InterDigital,” “we,”  or “our”), 
alleging  that  we  have  used  false  or  misleading  descriptions  or  representations  regarding  our 
patents’  scope,  validity,  and  applicability  to  products  built  to  comply  with  3G  wireless  phone 
Standards  (“Nokia  Delaware  Proceeding”). We  subsequently  filed  counterclaims  based  on 
Nokia’s licensing activities as well as Nokia’s false or misleading descriptions or representations 
regarding  Nokia’s  3G  patents  and  Nokia’s  undisclosed  funding  and  direction  of  an  allegedly 
independent study of the essentiality of 3G patents.

On  December  10,  2007,  pursuant  to  a  joint  request  by  the  parties,  the  Delaware  District  Court 
entered an Order staying the proceedings pending the full and final resolution of the Company’s 
ITC  investigation  against  Nokia  and  Samsung.  Specifically,  the  full  and  final  resolution  of  the 
ITC  investigation  includes  any  initial  or  final  determinations  of  the Administrative  Law  Judge 
overseeing  the  proceeding,  the  ITC,  and  any  appeals  therefrom.  Pursuant  to  the  Order,  the 
parties  and  their  affiliates  are  generally  prohibited  from  initiating  against  the  other  parties,  in 
any  forum,  any  claims  or  counterclaims  that  are  the  same  as  the  claims  and  counterclaims 
pending  in  the  Nokia  Delaware  Proceeding,  and  should  any  of  the  same  or  similar  claims  or 
counterclaims be initiated by a party, the other parties may seek dissolution of the stay.

The  Order  does  not  affect  any  of  the  other  legal  proceedings  between  the  parties  including 
the  current  ITC  Investigation  involving  InterDigital,  Nokia  and  Samsung,  or  the 
parallel  Delaware  District  Court  proceedings  also  brought  by  InterDigital  against  Nokia  and 
Samsung individually.

52

Nokia ICC Arbitration

In  November  2006,  we  filed  a  Request  for Arbitration  with  the  ICC  against  Nokia  (“Nokia  ICC 
Proceeding”), claiming that certain presentations Nokia has attempted to use in support of its 
claims in the Nokia Delaware Proceeding are confidential and, as a result, may not be used in 
the Nokia Delaware Proceeding pursuant to the parties’ agreement.

The  December  10,  2007,  Order  entered  by  the  Delaware  District  Court  to  stay  the  Nokia 
Delaware  Proceeding  described  above,  also  stayed  the  Nokia  ICC  Proceeding  pending  the  full 
and final resolution of the ITC Investigation against Nokia and Samsung as described above.

Samsung Delaware Proceeding

In March 2007, Samsung Telecommunications America LLP (“Samsung Telecom”) and Samsung 
Electronics Co., Ltd. (“Samsung Electronics”) filed an action against InterDigital Communications 
Corporation  (now  “InterDigital  Communications,  LLC”),  ITC  and  another  affiliate, Tantivy 
Communications, Inc. (collectively, “InterDigital,” “we,” or “our”), in the Delaware District Court, 
alleging  that  InterDigital  has  refused  to  comply  with  its  alleged  contractual  obligations  to  be 
prepared  to  license our patents  on fair, reasonable, and non-discriminatory (“FRAND”) terms, 
and  that  InterDigital  has  allegedly  engaged  in  unfair  business  practices.  By  their  original 
Complaint in the action, the Samsung entities sought damages and declaratory relief, including 
declarations  that:  (i)  InterDigital’s  patents  and  patent  applications  allegedly  promoted  to 
standards  bodies  are  unenforceable;  (ii)  the  Samsung  entities  have  a  right  to  practice 
InterDigital’s  intellectual  property  as  a  result  of  an  alleged  license  from  QUALCOMM 
Incorporated;  (iii)  nine  specified  InterDigital  patents  are  invalid  and/or  not  infringed  by 
the  Samsung  entities;  and  (iv)  InterDigital  must  offer  the  Samsung  entities  a  license  on 
FRAND terms.

In  September  2007,  Samsung  Electronics  filed  a  First  Amended  Complaint  (“Amended 
Complaint”) in its proceeding in the Delaware District Court against InterDigital. The Amended 
Complaint includes Samsung’s originally-pled claims concerning InterDigital’s alleged behavior 
with respect to standards bodies and licensing practices, but omits all of Samsung’s previously 
asserted  claims  for  declaratory  judgment  that  nine  specified  InterDigital  patents  are  invalid 
and/or not infringed. The Amended Complaint was filed only on behalf of Samsung Electronics 
and, unlike the original Complaint, does not identify Samsung Telecom as a co-plaintiff.

InterDigital  intends  to  vigorously  defend  itself  against  Samsung’s  allegations  in  this  matter.  In 
November  2007,  InterDigital  filed  its Answer  to  the Amended  Complaint,  disputing  Samsung’s 
allegations and asserting counterclaims of infringement of two InterDigital patents. InterDigital 
simultaneously  filed  a  partial  motion  to  dismiss  Samsung’s  claim  alleging  violation  of 
California’s  Unfair  Competition  Law.  No  ruling  has  been  made  on  InterDigital’s  motion  to 
dismiss,  and  no  scheduling  order  has  been  issued  in  the  case. The  Court  has  not  yet  set  this 
matter for an initial Case Management Conference, and discovery has not yet begun.

Samsung 2nd Arbitration and Related Confirmation Proceeding

In  August  2006,  an  arbitral  tribunal  (“Tribunal”)  operating  under  the  auspices  of  the 
International  Court  of Arbitration  of  the  International  Chamber  of  Commerce  issued  a  final 
award  (“Award”)  in  an  arbitration  proceeding  between  InterDigital  Communications,  LLC  and 
InterDigital Technology Corporation (collectively, “InterDigital”), and Samsung Electronics. In its 
Award, the Tribunal ordered Samsung Electronics to pay to InterDigital, pursuant to the parties’ 
1996  patent  license  agreement  (“Samsung Agreement”),  approximately  $134  million  in  past 
royalties plus interest on Samsung’s sale of single mode 2G GSM/TDMA and 2.5G GSM/GPRS/
EDGE terminal units through 2005 (“Award”). The Tribunal also established the royalty rates to 
be applied to Samsung’s sales of covered products in 2006.

53

In September 2006, InterDigital filed an action seeking to enforce the arbitral Award in the U.S. 
District Court for the Southern District of New York (the “Enforcement Action”). Subsequent to 
that  filing,  in  September  2006  Samsung  Electronics  filed  an  opposition  to  the  enforcement 
action,  including  filing  a  cross-petition  to  vacate  or  modify  the Award  and  to  stay  the Award. 
Oral arguments were held in November 2007.

On  December  10,  2007,  the  Honorable  Richard  J.  Sullivan,  the  Judge  who  is  currently 
overseeing  the  Enforcement  Action,  confirmed  the  Award  in  its  entirety  and  directed  that 
Samsung  pay  InterDigital  $150.25  million  comprised  of  $134  million  in  royalties  plus  interest 
less an approximate $6 million prepayment credit for sales of 2G terminal units through 2005, 
plus  pre-judgment  interest  calculated  at  a  rate  of  5%  per  annum. The  Order  of  Judgment 
denied  all  of  Samsung’s  petitions  and  motions  and  does  not  include  a  specified  amount  for 
royalties owed for 2006 under the arbitration award.

On  December  18,  2007,  Samsung  filed  an  appeal  with  the  United  States  Court  of Appeals  for 
the Second Circuit and posted an appeal bond, in the amount of approximately $166.7 million, 
with the New York District Court. By posting the appeal bond, Samsung has stayed execution of 
the Order of Judgment pending the appeal. Under the current schedule, oral argument before 
the Second Circuit Court of Appeals will take place no earlier than the week of May 26, 2008.

On  February  25,  2008,  Samsung  filed  a  motion  to  stay  their  appeal,  and  vacate  the  current 
briefing schedule, pending the outcome of the Samsung 3rd Arbitration (described below). The 
Company intends to oppose Samsung’s motion.

Samsung 3rd Arbitration

In October 2006, Samsung Electronics filed a request for a new ICC arbitration proceeding (the 
“Samsung  3rd Arbitration”)  relating  to  the  ongoing  patent  royalty  dispute  between  Samsung 
and  InterDigital.  In  the  Samsung  3rd Arbitration,  Samsung  Electronics  seeks  to  have  a  new 
arbitration panel determine new royalty rates for Samsung’s 2G/2.5G GSM/GPRS/EDGE product 
sales  based  on  the  April  2006  Nokia  Settlement,  which  implemented  a  June  2005  Nokia 
arbitration Award.  Samsung  has  purported  to  have  elected  the  Nokia  Settlement  under  the 
most  favored  licensee  (“MFL”)  clause  in  the  Samsung Agreement.  Samsung  contends  that  it 
has  the  right  to  have  a  new  rate,  based  on  the  Nokia  Settlement,  applied  to  its  sales  in  the 
period from January 1, 2002 through December 31, 2006 in lieu of the royalty rates that have 
been determined by the Tribunal in the Samsung 2nd Arbitration for that period. In addition to 
seeking  relief  based  on  the  Nokia  Settlement,  Samsung  has  expressly  reserved  a  purported 
right to make an MFL election of another specified license agreement between InterDigital and 
a  third  party,  and  to  add  claims  relating  to  that  agreement.  In  the  Samsung  3rd Arbitration 
proceeding,  we  have  denied  that  Samsung  is  entitled  to  receive  any  new  royalty  rate 
adjustment  based  on  the  Nokia  Settlement  or  the  specified  third  party  license  agreement. 
We  have  also  counterclaimed,  seeking  an  Award  of  the  royalties  Samsung  owes  for  its 
2G/2.5G  sales  in  2006  at  the  royalty  rate  specified  in  the August  2006 Award  in  the  Samsung 
2nd Arbitration.

In February 2008, the Tribunal heard oral argument on the issue of whether Samsung is entitled 
to elect the Nokia Settlement. The Tribunal has not indicated when it will render a decision on 
this issue. The parties will need to present evidence and/or argument in a further phase of this 
arbitration  on  the  amount  of  royalties  Samsung  owes  for  its  2G/2.5G  sales  in  2006,  and, 
depending  on  the Tribunal’s  decision  as  to  whether  Samsung  is  entitled  to  elect  the  Nokia 
Settlement, possibly for earlier periods of time.

54

Other

We  have  filed  patent  applications  in  the  United  States  and  in  numerous  foreign  countries.  In 
the ordinary course of business, we currently are, and expect from time-to-time to be, subject 
to  challenges  with  respect  to  the  validity  of  our  patents  and  with  respect  to  our  patent 
applications. We intend to continue to vigorously defend the validity of our patents and defend 
against any such challenges. However, if certain key patents are revoked or patent applications 
are denied, our patent licensing opportunities could be materially and adversely affected.

We  and  our  licensees,  in  the  normal  course  of  business,  may  have  disagreements  as  to  the 
rights  and  obligations  of  the  parties  under  the  applicable  patent  license  agreement.  For 
example, we could have a disagreement with a licensee as to the amount of reported sales of 
covered  products  and  royalties  owed.  Our  patent  license  agreements  typically  provide  for 
arbitration  as  the  mechanism  for  resolving  disputes. Arbitration  proceedings  can  be  resolved 
through  an  award  rendered  by  an  arbitration  panel  or  through  private  settlement  between 
the parties.

In  addition  to  disputes  associated  with  enforcement  and  licensing  activities  regarding  our 
intellectual property, including the litigation and other proceedings described above, we are a 
party to other disputes and legal actions not related to our intellectual property, but also arising 
in the ordinary course of our business, including claims by us for insurance coverage involving 
the Nokia Delaware Proceeding. Based upon information presently available to us, we believe 
that  the  ultimate  outcome  of  these  other  disputes  and  legal  actions  will  not  have  a  material 
adverse affect on us.

Among the types of legal proceedings we encounter in the normal course of business, we are 
engaged in the following action:

Federal

In May 2007, the Arbitrator in the arbitration proceeding between InterDigital Communications 
Corporation (now “InterDigital Communications, LLC”) and InterDigital Technology Corporation 
(collectively, “InterDigital,” “we,”  or “our”)  and  Federal  Insurance  Company  (“Federal”),  and 
relating to a Litigation Expense and Reimbursement Agreement signed in February 2000 by the 
parties  (“Reimbursement Agreement”),  refused  to  award  the  full  amount  of  Federal’s  claim 
which was in excess of $33 million. The Arbitrator did award Federal approximately $13 million, 
pursuant  to  a  formula  set  forth  in  the  Reimbursement  Agreement,  for  reimbursement  of 
attorneys’  fees  and  expenses  previously  paid  to  or  on  behalf  of  InterDigital  by  Federal,  plus 
approximately  $2  million  in  interest.  As  additional  reimbursement  of  attorneys’  fees  and 
expenses,  the Arbitrator  awarded  $5  million,  without  interest,  as  Federal’s  share  under  the 
Reimbursement Agreement  of “additional  value”  of  the  2003  settlement  between  InterDigital 
and  Ericsson  Inc.  Further,  the Arbitrator  ruled  that  InterDigital  must  pay  Federal  10%  of  any 
additional payments InterDigital may receive as a result of an audit of Sony Ericsson’s sales. In 
June 2007, we notified Federal that we had received $2 million from Sony Ericsson to resolve 
Sony Ericsson’s payment obligations following an audit. The approximately $13 million portion 
of  the Award  represents  a  percentage  of  the  amounts  InterDigital  has  received  since  March 
2003  from Telefonaktiebolaget  LM  Ericsson  and  Ericsson  Inc.,  and  Sony  Ericsson  Mobile 
Communications AB under their respective patent license agreements.

In  June  2007,  Federal  moved  to  confirm  the Award  in  the  United  States  District  Court  for  the 
Eastern District of Pennsylvania. Also in June 2007, we filed an opposition to Federal’s motion 
to confirm the arbitration Award and a cross motion to vacate a portion of the Award, totaling 
approximately  $14.5  million,  on  the  ground  that  the Arbitrator  exceeded  the  scope  of  her 
authority. We also moved the Court to stay confirmation of the Award pending adjudication of 
our  recoupment  defense  whereby  we  are  seeking  to  recoup  the  full  amount  of  the Award 

55

based  on  Federal’s  bad  faith  breach  of  its  contractual  and  fiduciary  duties  to  us.  In  July  2007, 
the  Court  heard  oral  arguments  on  Federal’s  motion  to  confirm  the Award,  our  opposition 
thereto, our cross motion to vacate the Award, and to stay confirmation pending adjudication 
of our recoupment defense. The Court has not yet ruled on these pending motions.

At  the  time  of  judgment  we  recorded  an  expense  of  approximately  $16.6  million  which 
represents  the  total  amount  of  the Award  through  third  quarter  2007,  less  the  amount  of  a 
previously  accrued  liability  of  $3.4  million. We  have  also  accrued  post  judgment  interest  of 
$0.7 million and reported such interest expense within the “Interest and other income, net” line 
item of our Statement of Income.

FInancIal PoSITIon, lIQUIDITY 
anD caPIT al ReQUIReMenTS

In 2007 and 2006, we generated net cash from operating activities of $152.7 million and $314.8 
million, respectively. The positive operating cash flow in 2007 arose principally from receipts of 
approximately $303.4 million related to 2G and 3G patent licensing agreements. These receipts 
included  $95.0  million  from  LG,  $41.6  million  from  Sharp  Corporation  of  Japan  (Sharp),  $32.4 
million  from  NEC,  $55.8  million  from  other  licensees  that  signed  new  or  amended  patent 
license agreements in 2007 and $78.6 million from other existing licensees. These receipts were 
partially  offset  by  cash  operating  expenses  (operating  expenses  less  depreciation  of  fixed 
assets,  amortization  of  intangible  assets  and  non-cash  compensation)  of  $179.4  million,  cash 
payments for foreign source withholding taxes of $16.1 million and changes in working capital 
during 2007.

The  positive  operating  cash  flow  in  2006  arose  principally  from  receipts  of  approximately 
$499.7  million  related  to  2G  and  3G  patent  licensing  agreements. These  receipts  included 
$253.0  million  from  Nokia,  $95.0  million  from  LG,  $40.6  million  from  Sharp  Corporation  of 
Japan  (Sharp),  $38.0  million  from  NEC,  $15.9  million  from  a Taiwanese  licensee,  $15.5  million 
from a Canadian licensee and $41.7 million from other licensees. These receipts were partially 
offset  by  cash  operating  expenses  (operating  expenses  less  depreciation  of  fixed  assets, 
amortization of intangible assets and non-cash compensation) of $122.4 million, cash payments 
for foreign source withholding taxes of $28.5 million, an estimated federal income tax payment 
of $23.0 million and changes in working capital during 2006.

Our  combined  short-term  and  long-term  deferred  revenue  balance  at  December  31,  2007  was 
approximately  $303.4  million,  an  increase  of  $71.8  million  from  December  31,  2006. We  have 
no  material  obligations  associated  with  such  deferred  revenue.  In  2007,  we  recorded  gross 
increases  in  deferred  revenue  of  $191.4  million,  $95  million  of  which  relates  to  a  payment 
received from LG in first quarter 2008, $56.4 million related to new prepayments from existing 
licensees and $40 million related to a prepayment and accrued receivable from a new licensee. 
The  gross  increases  in  deferred  revenue  were  offset,  in  part,  by  2007  deferred  revenue 
recognition  of  $69.2  million  related  to  the  amortization  of  fixed-fee  royalty  payments, 
$50.4  million  related  to  per-unit  exhaustion  of  prepaid  royalties  (based  upon  royalty  reports 
provided  by  our  licensees)  and  the  recognition  of  deferred  revenue  related  to  technology 
solutions agreements.

In  2008,  based  on  current  license  agreements,  we  expect  the  amortization  of  fixed-fee  royalty 
payments  to  reduce  the  December  31,  2007  deferred  revenue  balance  of  $303.4  million  by 
$78.9  million. Additional  reductions  to  deferred  revenue  will  be  dependent  upon  the  level  of 
per-unit royalties our licensees report against prepaid balances.

56

We  used  net  cash  in  investing  activities  of  $54.3  million  and  $52.4  million  in  2007  and  2006, 
respectively. We  sold  $12.8  million  of  short-term  marketable  securities,  net  of  purchases,  in 
2007. We purchased $19.7 million of short-term marketable securities, net of sales, in 2006. This 
change  resulted  from  the  investment  of  significant  cash  receipts  from  operating  activities  in 
2006 offset in part by our activity under our share repurchase program. Purchases of property 
and equipment increased to $13.8 million in 2007 from $11.2 million in 2006 due to continued 
investment  in  both  development  tools  and  engineering  related  network  infrastructure  and 
systems. We  also  paid  $24.4  million  and  $2.7  million  in  2007  and  2006,  respectively,  toward 
technology  licenses  necessary  for  our  SlimChip  product  family.  Investment  costs  associated 
with patents increased from $18.9 million in 2006 to $23.9 million in 2007. This increase reflects 
higher  patent  application  activity  over  the  past  several  years,  combined  with  the  lag  effect 
between  filing  an  initial  patent  application  and  the  incurrence  of  costs  to  issue  the  patent  in 
both the U.S. and foreign jurisdictions.

Net  cash  used  in  financing  activities  in  2007  increased  $48.9  million  to  $172.8  million  from 
$123.9 million. In 2007, we repurchased approximately 6.0 million shares of our common stock 
for  $183.1  million  compared  to  6.3  million  shares  of  our  common  stock  for  $184.9  million  in 
2006. We  received  proceeds  from  option  and/or  warrant  exercises  of  $6.5  million  and  $40.6 
million in 2007 and 2006, respectively. In 2007 and 2006, we classified tax benefits from stock 
options of $5.1 million and $20.7 million, respectively, as a cash flow from financing activities 
in  accordance  with  SFAS  123(R).  In  2005,  we  had  classified  tax  benefits  from  stock  options  of 
$2.3 million as a cash flow from operating activities.

At  December  31,  2007  and  2006,  we  had  approximately  2.9  million  and  4.0  million  options 
outstanding, respectively, that had exercise prices less than the fair market value of our stock 
at  each  balance  sheet  date. These  options  would  generate  $33.1  million  and  $48.8  million  of 
cash proceeds to the Company if they were fully exercised.

As  of  December  31,  2007,  we  had  $177.5  million  of  cash,  cash  equivalents  and  short-term 
investments, compared to $264.0 million at December 31, 2006. Our working capital (adjusted 
to  exclude  cash,  cash  equivalents,  short-term  investments,  current  maturities  of  debt  and 
current deferred revenue) decreased to $117.0 million at December 31, 2007 from $139.7 million 
at December 31, 2006. This $22.7 million decrease is primarily due to an $18.9 million increase 
in accounts payable primarily associated with contingency accruals.

In  December  2005,  we  entered  into  a  two-year  $60  million  unsecured  revolving  credit  facility 
(the  Credit Agreement). The  Credit Agreement  was  entered  into  by  the  Company,  Bank  of 
America, N.A., as Administrative Agent, and Citizens Bank of Pennsylvania. On July 2, 2007, as 
a  result  of  the  Company’s  internal  corporate  reorganization,  InterDigital  Communications 
Corporation,  the  Company,  the  Subsidiary  Guarantors  party  thereto,  the  Lenders  and  Bank  of 
America,  N.A.,  as  Administrative  Agent  and  L/C  Issuer,  entered  into  a  First  Amendment, 
Consent  and  Joinder  to  Credit Agreement. We  did  not  borrow  against  the  Credit Agreement 
during the initial two year term.

In December 2007, we entered into a Second Amendment to Credit Agreement resulting in the 
continuation  of  our  two-year  $60  million  unsecured  revolving  credit  facility  (the  Credit 
Agreement)  through  December  2009.  Under  the  Second Amendment,  borrowings  under  the 
Credit Agreement will, at the Company’s option, bear interest at either (i) LIBOR plus 65 basis 
points  or  (ii)  the  higher  of  the  prime  rate  or  50  basis  points  above  the  federal  funds  rate. The 
customary  restrictive  financial  and  operating  covenants  under  the  Credit Agreement  continue 
in  full  force  and  effect  and  include,  among  other  things,  that  the  Company  is  required  to  (i) 
maintain  certain  minimum  cash  and  short-term  investment  levels,  (ii)  maintain  minimum 
financial  performance  requirements  as  measured  by  the  Company’s  income  or  loss  before 
taxes with certain adjustments, and (iii) limit or prohibit the incurrence of certain indebtedness 

57

and  liens,  judgments  above  a  threshold  amount  for  which  a  reserve  is  not  maintained,  and 
certain other activities outside of the ordinary course of business. Borrowings under the Credit 
Agreement can be used for general corporate purposes including capital expenditures, working 
capital,  letters  of  credit,  certain  permitted  acquisitions  and  investments,  cash  dividends  and 
stock  repurchases.  As  of  December  31,  2007,  the  Company  did  not  have  any  amounts 
outstanding under the Credit Agreement.

We expect our operating cash needs will level off in 2008 and our investments in capital assets 
will  decrease. We  are  capable  of  supporting  these  and  other  operating  cash  requirements, 
including  repurchases  of  our  common  stock,  for  the  near  future  through  cash  and  short-term 
investments  on  hand,  other  operating  funds  such  as  patent  license  royalty  payments  or  the 
above-noted  credit  facility.  At  present,  we  do  not  anticipate  the  need  to  seek  additional 
financing through additional bank facilities or the sale of debt or equity securities.

Contractual Obligations

Other than $3.2 million in open purchase orders related to our SlimChip product family, we did 
not  have  any  significant  purchase  obligations  outside  our  ordinary  course  of  business  at 
December 31, 2007. We also had a FIN 48 reserve of $4.4 million at December 31, 2007.

The  following  is  a  summary  of  our  consolidated  debt  and  lease  obligations  at 
December 31, 2007 (in millions):

Obligation 

Debt 

Operating leases 

Total debt and operating lease obligations 

Off-Balance Sheet Arrangements

Total 

1-3 Years 

4-5 Years  Thereafter

$  3.7 

9.5 

$  13.2 

$  3.2 

  6.3 

$  9.5 

$  0.5 

  3.2 

$  3.7 

$  0.0

  0.0

$  0.0

We  do  not  have  any  off-balance  sheet  arrangements  as  defined  by  regulation  S-K  303(a)(4) 
promulgated under the Securities Act of 1934.

ReSUlTS oF oPeRa TIonS

2007 Compared With 2006

Revenues 

Per-unit royalty revenue 

Fixed-fee and amortized royalty revenue 

Recurring patent licensing royalties 

Past infringement and other non-recurring royalties 

Total patent licensing royalties 

Technology solutions revenue 

Total revenue 

2007 

2006

$ 136.9 
79.2 

  216.1 
14.7 

  230.8 
3.4 

$  124.9

81.3

  206.2

  267.4

  473.6

6.9

$ 234.2 

$  480.5

Revenues  were  $234.2  million  in  2007,  compared  to  $480.5  million  in  2006. The  decrease  was 
driven  by  the  recognition  in  2006  of  $253  million  and  $12  million  of  non-recurring  revenue 
related  to  the  resolution  of  patent  licensing  matters  with  Nokia  and  Panasonic,  respectively, 
and was partially offset by a $9.9 million increase in recurring patent licensing royalties in 2007. 
The increase in recurring patent license royalties was related to a new agreement with Apple, 

58

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
as  well  as  new  or  higher  contributions  from  other  existing  licensees,  including  RIM, Toshiba 
and Sharp. Together, these factors more than offset the loss of recurring 2G royalties from NEC, 
Ericsson and Sony Ericsson, which have no further 2G royalty obligations under their respective 
patent license agreements.

Technology  solution  revenue  decreased  in  2007  to  $3.4  million  from  $6.9  million  in  2006. The 
decline is primarily attributable to reduced activity under our HSDPA technology programs with 
Philips Semiconductor B.V. (Philips) and Infineon.

In  2007,  6%  of  total  revenue,  or  $14.7  million,  was  attributable  to  non-recurring  revenue, 
primarily associated with prior period sales of Sony Ericsson’s covered 2G products identified 
during  a  routine  audit.  Of  the  remaining  94%,  or  $219.5  million,  61%  was  attributable  to 
companies that individually accounted for 10% or more of this amount, and included LG (26%), 
Sharp  (20%)  and  NEC  (15%).  In  2006,  56%  of  total  revenue,  or  $267.4  million,  was  associated 
with  the  resolution  of  patent  licensing  matters,  primarily  with  Nokia  and  Panasonic.  Of  the 
remaining  44%,  or  $213.1  million,  62%  was  attributable  to  companies  that  individually 
accounted  for  10%  or  more  of  this  amount,  and  included  LG  (26%),  NEC  (19%)  and 
Sharp (17%).

Operating Expenses

Excluding  one-time  arbitration  charges  of  $16.6  million  and  $7.8  million,  associated  with  our 
disputes  with  Federal  and  the  on-going  Nokia  UK  II  case,  respectively,  operating  expenses 
increased from $144.1 million in 2006 to $186.8 million in 2007. The $42.7 million increase was 
primarily due to increases/(decreases) in the following items (in millions): 

Patent litigation and arbitration 

Consulting services 

Depreciation and amortization 

Personnel related costs 

Patent maintenance 

Share-based compensation 

Legal structure reorganization 

Commissions 

Other 

Total increase in operating expense excluding arbitration and litigation contingencies   

Arbitration and litigation contingencies 

Total increase in operating expense 

$  15.4

  9.1

  7.2

  5.7

  3.1

  2.7

  0.9

  (3.7)

  2.3

$  42.7

$  24.4

$  67.1

Patent  litigation  and  arbitration  increased  primarily  due  to  our  consolidated  U.S.  International 
Trade  Commission  proceeding  against  Samsung  and  Nokia,  as  well  as  increased  activity 
in  other  disputes  with  Nokia.  Consulting  services  and  personnel  related  costs  increased 
primarily  due  to  the  need  for  additional  internal  and  external  resources  to  develop  our 
SlimChip product family. 

Patent  amortization  and  patent  maintenance  costs  both  increased  due  to  heightened  levels  of 
internal  inventive  activity  in  recent  years  resulting  in  the  expansion  of  our  patent  portfolio. 
Other  depreciation  and  amortization  increased  due  to  the  recent  acquisition  of  tools  and 
technology  licenses  to  develop  our  SlimChip  product  family. The  increase  in  share-based 
compensation expense resulted from increased LTCP costs related to the effect of overlapping 
RSU cycles in 2007 and was partly offset by a decrease resulting from a non-recurring charge 
of  $1.1  million  in  third  quarter  2006  that  related  to  share-based  grants  in  1998.  Legal  and 
professional fees unrelated to patent litigation and arbitration increased due to both our 2007 
legal entity reorganization and insurance disputes. These increases in operating expenses were 
partly offset by a $3.7 million decrease in commission expense.

59

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The following table summarizes the change in operating expenses by category (in millions):

Sales and marketing 

General and administrative 

Patents administration and licensing 

Development 

Litigation and arbitration contingencies 

2007 

2006 

Increase

$ 

7.8 
24.2 
67.6 
87.2 
24.4 

$ 

6.6 

$  1.2 

   15%

21.0 

51.1 

65.4 

— 

3.2 

  16.5 

  21.8 

  24.4 

  16

  32

  34

  100

Total operating expense 

$  211.2 

$  144.1 

$  67.1 

   46%

Sales  and  Marketing  Expense:  The  increase  in  sales  and  marketing  expense  was  due  to 
increased  travel  and  consulting  costs  ($0.5  million)  primarily  associated  with  the  advanced 
marketing of our SlimChip product family and overlapping RSU cycles ($0.6 million).

General and Administrative Expense: The increase in general and administrative expenses was 
primarily  due  to  increased  legal  and  consulting  services  primarily  associated  with  our  legal 
entity  reorganization  ($0.9  million),  personnel  costs  associated  with  wage  inflation  and 
temporary  personnel  ($0.8  million),  increased  taxes  other  than  income  ($0.6  million)  and 
overlapping RSU cycles ($0.9 million).

Patents Administration  and  Licensing  Expense:  The  increase  in  patent  administration  and 
licensing expenses resulted from the above noted increases in patent litigation and arbitration 
($15.4  million),  patent  maintenance  ($3.1  million),  patent  amortization  expense  ($1.5  million), 
personnel  related  costs  ($0.8  million)  and  overlapping  RSU  cycles  ($0.4  million). These 
increases  were  offset,  in  part,  by  the  above  noted  decrease  in  commission  expense 
($3.7 million) and the non-recurring charge related to share-based grants in 1998 ($1.0 million).

Development Expense: The increase in development expense was primarily attributable to the 
development  of  our  SlimChip  product  family,  including  increased  consulting  services 
($8.4  million),  depreciation  and  amortization  of  development  tools  and  technology  licenses 
($5.7 million), personnel costs ($3.7 million) and overlapping RSU cycles ($2.5 million).

Litigation  and Arbitration  Contingencies:  In  2007,  we  accrued  non-recurring  charges  of 
$16.6 million and $7.8 million related to our contingent obligations to reimburse Federal under 
an  insurance  reimbursement  agreement  and  to  reimburse  Nokia  for  a  portion  of  their  legal 
fees associated with the UK II case, respectively.

Interest and Investment Income, Net

Net interest and investment income of $8.9 million in 2007 decreased $4.2 million or 32% from 
$13.2 million in 2006. The decrease primarily resulted from lower investment balances in 2007 
due to the completion of our share repurchase program and post judgment interest expense of 
$0.7 million which we accrued related to the Federal Arbitration Award.

Income Taxes

Our  2007  income  tax  provision  consisted  of  the  statutory  federal  tax  rate  plus  book-tax 
permanent  differences  related  to  the  company’s  research  and  development  credits.  Our  2006 
income  tax  provision  consisted  of  the  statutory  federal  tax  rate  plus  book-tax  permanent 
differences and $2.2 million of non-U.S. withholding taxes.

60

 
 
 
 
 
 
 
 
 
 
2006 Compared With 2005

Revenues

Per-unit royalty revenue 

Fixed-fee and amortized royalty revenue 

Recurring patent licensing royalties 

Past infringement and other non-recurring royalties 

Total patent licensing royalties 

Technology solutions revenue 

Total revenue 

2006 

2005

$  124.9 

$  99.3

81.3 

  206.2 

  267.4 

34.6

  133.9

10.2

  473.6 

  144.1

6.9 

19.0

$  480.5 

$ 163.1

In  2006,  revenues  increased  $317.4  million  to  $480.5  million  from  $163.1  million  in  2005. This 
increase  was  driven  by  both  the  recognition  of  $253  million  and  $12  million  related  to  the 
resolution  of  patent  licensing  matters  with  Nokia  and  Panasonic,  respectively,  and  higher 
recurring patent license royalties. The increase in recurring patent license royalties was related 
to  a  new  agreement  with  LG,  as  well  as  new  or  higher  contributions  from  other  existing 
licensees, including Panasonic. 2005 revenues included non-recurring revenue of $10.2 million 
related  to  past  infringement,  primarily  associated  with  a  new  patent  license  agreement 
with Kyocera.

Technology  solution  revenue  decreased  in  2006  to  $6.9  million  from  $19.0  million  in  2005,  as 
contributions from HSDPA technology programs with Philips Semiconductor B.V. (Philips) and 
Infineon  partially  offset  the  decrease  associated  with  the  first  quarter  2006  completion  of 
deliverables  under  an  agreement  with  General  Dynamics  C4  Systems  (formerly  known  as 
General  Dynamics  Decision  Systems,  Inc.)  (General  Dynamics),  supporting  a  program  for  the 
U.S. military.

In  2006,  56%  of  total  revenue,  or  $267.4  million,  was  associated  with  the  resolution  of  patent 
licensing matters, primarily with Nokia and Panasonic. Of the remaining 44%, or $213.1 million, 
62% was attributable to companies that individually accounted for 10% or more of this amount, 
and  included  LG  (26%),  NEC  (19%)  and  Sharp  (17%).  In  2005,  6%  of  total  revenue,  or  $10.2 
million,  was  associated  with  payments  for  past  sales  by  Kyocera  ($10  million)  and  one  other 
licensee.  Of  the  remaining  94%,  or  $152.9  million,  76%  was  attributable  to  companies  that 
individually accounted for 10% or more of this amount, and included NEC (32%), Sharp (23%), 
General Dynamics (11%) and Sony Ericsson (10%).

61

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Operating Expenses

Operating  expenses  decreased  1.0%  from  $146.0  million  in  2005  to  $144.1  million  in  2006.  
The  $1.9  million  decrease  was  primarily  due  to  (decreases)/increases  in  the  following  items  
(in millions):

Patent litigation and arbitration 

Performance-based cash incentive 

Share-based compensation 

Executive severance & repositioning 

Commissions 

Depreciation and amortization 

Consulting services 

Patent maintenance 
Other(a) 

Total Decrease in Operating Expense 

$  (5.9)

  (3.0)

  (2.8)

  (2.7)

  4.0

  3.1

  2.3

  1.5 
  1.6

$  (1.9)

(a)	 	The	increase	in	other	costs	is	primarily	related	to	increased	headcount	in	our	engineering	staff.

Patent litigation and arbitration costs decreased primarily due to changes in both the level and 
mix of arbitration and litigation activity in 2006. The decreases in both performance-based cash 
incentive  costs  and  share-based  compensation  costs  reflect  the  absence  of  overlapping  LTCP 
cycles in 2006 (i.e., 2005 expense included costs from both the last year of Cycle 1 and the first 
year of Cycle 2). The decrease in 2006 share-based compensation cost associated with the LTCP 
was  partially  offset  by  $1.5  million  of  amortization  associated  with  a  2006  RSU  grant  to  non-
management  employees  and  a  non-recurring  charge  of  approximately  $1.0  million  to  correct 
our  accounting  related  to  share-based  grants  in  1998  to  two  non-employee,  non-director 
consultants.  In  2005,  we  recorded  severance  costs  of  $1.2  million  associated  with  changes  in 
our executive management and a repositioning charge of $1.5 million related to the closure of 
our  Melbourne,  Florida  design  facility. These  decreases  in  operating  expenses  were  offset,  in 
part,  by  increases  in  commissions,  consulting  services,  depreciation  and  amortization  and 
patent  maintenance  costs. The  increase  in  commissions  was  associated  with  higher  patent 
license  royalty  revenue.  Consulting  services  and  other  costs  both  increased  primarily  due  to 
our expanded development activities directed toward our complete 2G/3G dual-mode modem 
ASIC  offering. The  increase  in  depreciation  and  amortization  is  attributable  to  higher  carrying 
values of property and equipment, and patents, respectively. A 33% increase in the number of 
issued patents we held in 2006 resulted in increased patent maintenance costs.

The following table summarizes the change in operating expenses by category (in millions):

Sales and marketing 

General and administrative 

Patents administration and licensing 

Development 

Repositioning 

2006 

2005 

(Decrease)/Increase

$ 

6.6 

$ 

7.9 

21.0 

51.1 

65.4 

— 

24.1 

49.4 

63.1 

1.5 

$  (1.3) 

  (3.1) 

  1.7 

  2.3 

  (16)%

  (13)

3

4

(1.5) 

 (100)

Total operating expense 

$  144.1 

$  146.0 

$  (1.9) 

(1)%

Sales and Marketing Expense: The decrease in sales and marketing expense was primarily due 
to a $1.0 million decrease in LTCP costs resulting from overlapping cycles in 2005.

General and Administrative Expense: The decrease in general and administrative expenses was 
primarily due to a $1.7 million decrease in LTCP costs resulting from overlapping cycles in 2005 
and the above-noted $1.2 million executive severance charge in 2005.

62

 
 
 
 
 
 
 
 
 
 
 
 
 
Patents Administration  and  Licensing  Expense:  The  increase  in  patent  administration  and 
licensing  expenses  resulted  from  the  above-noted  increases  in  commissions,  patent 
maintenance  and  patent  amortization  expense  and  the  non-recurring  charge  related  to 
share-based  grants  from  1998. These  increases  were  offset,  in  part,  by  the  above  noted 
decrease  in  patent  arbitration  and  litigation  costs  and  a  $0.6  million  decrease  in  LTCP  costs 
resulting from overlapping cycles in 2005.

Development  Expense:  The  increase  in  development  expense  is  primarily  attributable  to 
activities  associated  with  our  development  of  a  complete  2G/3G  dual-mode  modem ASIC  for 
use in advance platforms. These increases were in the areas of personnel expenses, consulting 
services  and  depreciation  expense  of  development  tools  and  licenses  of  $1.7  million, 
$1.9  million  and  $1.8  million,  respectively. These  increases  were  offset,  in  part,  by  lower  LTCP 
costs of $3.2 million resulting from overlapping cycles in 2005.

Repositioning Expense: The $1.5 million repositioning charge in 2005 relates to the closure of 
our Melbourne, Florida design facility during the third quarter 2005.

Interest and Investment Income, Net

Net  interest  and  investment  income  of  $13.2  million  in  2006  increased  $10.0  million  from 
$3.2 million in 2005. The increase resulted from higher investment balances and higher rates of 
return on our investments in 2006.

Income Taxes

Our  2006  income  tax  provision  consisted  of  a  34.9%  provision  for  federal  income  taxes, 
including book-tax permanent differences, plus $2.2 million of non-U.S. withholding taxes. Our 
income  tax  provision  in  2005  included  benefits  totaling  $43.7  million,  primarily  related  to  the 
fourth quarter 2005 reversal of our Federal deferred tax asset valuation allowance (a portion of 
this  reversal  was  credited  directly  to  additional  paid-in  capital),  which  were  offset,  in  part,  by 
$7.2  million  of  federal  income  tax  and  alternative  minimum  tax,  and  $2.1  million  of  foreign 
source withholding tax.

The net income tax benefit associated with adjustments to the value of our deferred tax assets 
in 2005 is comprised of the following components (in millions):

Reversal of U.S. Federal valuation allowance 

Change in effective tax rate applied to U.S. Federal deferred tax assets 

Other adjustments to deferred tax assets 

Total adjustments related to U.S. Federal deferred tax asset valuation 

$ (46.4)

(1.4)

4.1

$ (43.7)

The  $46.4  million  reversal  of  the  U.S.  Federal  valuation  allowance  in  2005  was  based  on 
expectations  that  we  will  generate  sufficient  future  taxable  income  to  utilize  our  U.S.  Federal 
deferred  tax  assets. The  $1.4  million  change  in  the  effective  tax  rate  applied  to  U.S.  Federal 
deferred  tax  assets  was  related  to  a  change  in  the  estimated  tax  rate  we  expect  would  apply 
when these deferred tax assets reverse. The remaining $4.1 million adjustment of our deferred 
tax assets reduces the recorded value of credits associated with federal NOL carryforwards and 
research  and  development  activities  based  on  our  assessment  of  the  likelihood  of  realizing 
such credits.

Expected Trends

In  first  quarter  2008,  we  expect  to  report  recurring  revenues  from  existing  agreements  in  the 
range  of  $53  million  to  $55  million. This  increase  over  fourth  quarter  levels  reflects  improved 
sales  from  our  licensees  and  the  contribution  from  our  new Asian  semiconductor  customer. 
This range does not include any potential impact from additional new agreements that may be 

63

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
signed during first quarter 2008 or additional royalties identified in audits regularly conducted 
by us. With respect to our first quarter 2008 expenses, we anticipate maintaining our staffing at 
a  level  that  is  relatively  flat  with  fourth  quarter  2007.  However,  we  do  expect  sequential 
percentage  growth  in  first  quarter  2008  expenses,  excluding  patent  arbitration  and  litigation 
costs  and  contingencies,  to  be  in  the  5%  to  10%  range  due  to  normal  wage  inflation  and 
seasonality  related  to  vacation  accruals  and  other  personnel  costs. We  also  currently  expect 
that  our  patent  arbitration  and  litigation  costs  in  first  quarter  2008  will  increase  over  fourth 
quarter 2007 based on the expected level of activity. Lastly, we expect that our book tax rate for 
the first quarter of 2008 will approximate 34% to 36%.

FoRW aRD-looKIng ST aTeMenTS

This Annual  Report  on  Form  10-K,  including “Item  1.  Business”  and “Item  7.  Management’s 
Discussion  and Analysis  of  Financial  Condition  and  Results  of  Operations”,  contains  forward-
looking  statements. Words  such  as “expect,” “will,” “believe,” “could,” “would,” “should,” “if,” 
“may,” “might,” “anticipate,” “unlikely  that,” “our  strategy,” “future,” “target,” “goal,” “trend,” 
“seek  to,” “seeking,” “will  continue,” “outcome,” “assuming,” “predict,” “estimate,” “due  to 
receive,” “likely,” “in the event” or similar expressions contained herein are intended to identify 
such  forward-looking  statements. Although  forward-looking  statements  in  this  annual  report 
reflect  the  good  faith  judgment  of  our  management,  such  statements  can  only  be  based  on 
facts  and  factors  currently  known  by  us. These  statements  reflect,  among  other  things,  our 
current beliefs, plans and expectations as to:

(i)  

 Our  plans  to  offer  a  2G/3G  dual-mode  modem ASIC  and  platform  to  customers  in  the 
digital  cellular  terminal  unit  market  and  our  ability  to  increase  revenues  by  creating 
synergies between our patent licensing and technology licensing businesses through the 
sale of our ASIC and platform.

(ii)   Our belief that:

(a)  a  number  of  our  patented  inventions  are  or  may  be  essential,  or  may  become 
essential,  to  products  built  to  2G  and  3G  cellular  Standards,  and  other  Standards 
such  as  IEEE  802  wireless  Standards,  and  that  companies  making,  using  or  selling 
products  compliant  with  these  Standards  are  required  to  take  a  license  under  our 
essential patents;

(b) our patent enforcement costs could continue to be a significant expense for us;

(c)  there  would  not  be  any  material  adverse  impact  on  our  ongoing  revenues  under 
existing  patent  license  agreements,  but  there  could  be  an  impact  on  our  ability  to 
generate new royalty streams if a party successfully asserted that some of our patents 
are  not  valid,  should  be  revoked  or  do  not  cover  their  products,  or  if  products  are 
implemented  in  a  manner  such  that  patents  we  believe  are  commercially  important 
are not infringed; and

(d)  the loss of revenues or cash payments from our licensees generating 2007 revenues 
exceeding 10% of total revenues would adversely affect either our cash flow or results 
of  operations  and  could  affect  our  ability  to  achieve  or  sustain  acceptable  levels 
of profitability.

(iii)  

 The  anticipated  proliferation  of  converged  devices  and  growth  in  global 
wireless subscribers.

(iv)  

 Factors driving the continued growth of wireless product and services sales through the 
end of the decade, including 3G enabled phones.

64

 
 
 
 
(v)  

 The  types  of  licensing  arrangements  and  various  royalty  structure  models  which  we 
anticipate  using  under  our  future  license  agreements,  including  the  impact  of  current 
trends  in  the  industry  which  could  result  in  reductions  in  and/or  caps  on  royalty  rates 
under new license agreements.

(vi)  

 The  possible  outcome  of  audits  of  our  license  agreements  when  underreporting  or 
underpayment is revealed.

(vii)    Our  goal  to  derive  revenue  on  every  3G  mobile  terminal  unit  sold  and  our  strategy  for 

achieving this goal including:

(a)  Licensing  our  patented  technology  to  wireless  equipment  producers  worldwide  on 
appropriate  economic  terms  and  vigorously  defending  our  intellectual  property  and 
related contractual rights;

(b)  Offering  our  intellectual  property  rights  and  technology  products  on  both  a 

complimentary and stand-alone basis;

(c) Continuing to fund substantial technology development;

(d)  Offering technology blocks as well as a 2G/3G dual-mode modem ASIC and platform;

(e) Establishing key strategic relationships;

(f)  Maintaining substantial involvement in key worldwide Standards bodies to contribute 
to the ongoing definition of wireless standards and to incorporate our inventions into 
those Standards; and

(g)  Marketing our 2G/3G dual-mode modem ASIC and platform to data card manufacturers.

(viii)    The impact of (a) a settlement, (b) a judgment in our favor, or (c) an adverse ruling in a 
patent litigation, arbitration or administrative proceeding with regard to our costs, future 
license agreements, and accounting recognition.

(ix)  

(x)  

 Our  plans  to  continue  to  pursue  discussions  and  negotiate  license  agreements  with 
companies  which  we  believe  require  a  license  under  our  patents,  and  to  pursue  legal 
actions if negotiations do not result in license agreements.

 The  impact  of  (a)  potential  domestic  patent  reform  legislation,  (b)  USPTO  reforms, 
(c) imposed international patent rules and (d) third party legal proceedings, on our patent 
prosecution and licensing strategies.

(xi)  

 Our  competition  and  factors  necessary  for  us  to  remain  successful  in  light  of 
such competition.

(xii)    A  potential  material  adverse  effect  on  our  consolidated  financial  position,  results  of 
operations  or  cash  flows  in  light  of  any  potential  adverse  decision  or  settlement  in  the 
Federal legal proceeding and our belief that an adverse resolution should not prevent us 
from  supporting  our  operating  requirements  for  the  near  future  and  our  belief  that  the 
arbitration is non-binding.

(xiii)    Our 2G/3G royalty mix, which is expected to shift to a higher percentage of 3G royalties 
throughout  this  decade,  as  the  2G  market  declines  and  ongoing  royalty  and  other 
payment obligations under 2G license agreements expire.

(xiv)    Our critical accounting policies, our accounting for contingencies under our legal proceeding 

  with Federal Insurance Company, and factors affecting our revenue recognition.

(xv)    2008  expense levels  associated  with our LTCP and our expense recognition with regard 

to our other equity-based incentive programs.

65

 
 
 
 
 
 
 
(xvi)   The  adequacy  of  our  accrual  for  tax  contingencies,  our  assessment  of  the  valuation 
allowance  associated  with  our  Federal  and  state  deferred  tax  assets,  our  future  tax 
paying status, and our expectation that we will provide for income taxes in 2008 at a rate 
equal  to  our  combined  Federal  and  state  effective  rates  plus  an  amount  for  foreign 
source withholding tax expense, as applicable.

(xvii)   Our  expectations  concerning  fiscal  year  2008  revenues,  increase  in  expenses,  book  tax 

rate, investment activity and patent litigation and arbitration expense.

(xviii)  Fiscal  year  2008  (and  near  future),  capitalized  patent  costs,  acquisitions  of  property  and 
equipment  and  technology  rights,  operating  cash  requirements  and  our  ability  to 
repurchase our common stock.

(xix)  Our lack of need to seek additional financing but possible introduction of debt in 2008.

(xx)   Samsung’s estimated royalty obligation for 2007 and estimated interest obligation.

(xxi)    Our belief that the ultimate outcome of current legal proceedings will not have a material 

adverse effect on us.

(xxii)   Our  expectations  as  to  the  impact  of  amortization  of  fixed  fee  royalty  payments  on 

deferred revenue balances in 2008.

(xxiii)   Our  ability  to  establish  successful  relationships  with  equipment  producers  and  other 

industry participants.

Consequently,  forward-looking  statements  concerning  our  business,  results  of  operations  and 
financial  condition  are  inherently  subject  to  risks  and  uncertainties. We  caution  readers  that 
actual  results  and  outcomes  could  differ  materially  from  those  expressed  in  or  anticipated  by 
such  forward-looking  statements. You  should  carefully  consider  the  risks  and  uncertainties 
outlined  in  greater  detail  in  this  annual  report,  including  “Item  1A  –  Risk  Factors.”  before 
making  any  investment  decision  with  respect  to  our  common  stock. You  should  not  place 
undue  reliance  on  these  forward-looking  statements,  which  are  only  as  of  the  date  of  this 
annual  report. We  undertake  no  obligation  to  revise  or  publicly  update  any  forward-looking 
statement for any reason, except as otherwise required by law.

ITeM 7a. QUanTITaTIVe anD QUalITaTIVe  
DIScloSUReS  aboUT MaRKe T RISK

Cash Equivalents and Investments

We  do  not  use  derivative  financial  instruments  in  our  investment  portfolio. We  place  our 
investments  in  instruments  that  meet  high  credit  quality  standards,  as  specified  in  our 
investment policy guidelines. This policy also limits our amount of credit exposure to any one 
issue,  issuer  and  type  of  instrument. We  do  not  expect  any  material  loss  with  respect  to  our 
investment portfolio.

66

 
The  following  table  provides  information  about  our  cash  and  investment  portfolio  as  of 
December 31, 2007. For investment securities, the table presents balances and related weighted 
average interest rates. All investment securities are classified as available for sale.

(in millions)

Cash and demand deposits 

  Average interest rate 

Cash equivalents 

  Average interest rate 

Short-term investments 

  Average interest rate 

Total portfolio 

  Average interest rate 

Long-Term Debt

$  41.3

$  50.7

$  85.5

$  177.5

 4.22%

 4.96%

 4.82%

 4.72%

The  table  below  sets  forth  information  about  our  long-term  debt  obligation,  by  expected 
maturity dates.

Expected Maturity Date

(In millions) 

December 31, 

2008 

2009 

2010 

2011 

2012 

2013 
and 
Beyond 

Total 
Fair 
Value

Debt obligation 

$  1.3 

.$  1.3  

$  0.6 

$  0.3 

$  0.2 

$  0.0 

$  3.7

Interest rate 

  6.76% 

  .6.92% 

  7.41% 

  8.28% 

  8.28% 

  0.00% 

  7.02%

ITeM 8. FInancIal ST aTeMenTS  anD   
SUPPleMenT aRY DaTa

Consolidated Financial Statements:

Report of Independent Registered Public Accounting Firm 

Consolidated Balance Sheets as of December 31, 2007 and 2006 

Consolidated Statements of Income for each of the  
three years ended December 31, 2007, 2006 and 2005 

Consolidated Statements of Shareholders’ Equity and  
Comprehensive Income for each of the three years ended  
December 31, 2007, 2006 and 2005 

Consolidated Statements of Cash Flows for each of the 
three years ended December 31, 2007, 2006 and 2005 

Notes to Consolidated Financial Statements 

Schedules:

Schedule II—Valuation and Qualifying Accounts 

All other schedules are omitted because they are either not required or  
applicable or equivalent information has been included in the financial  
statements and notes thereto.

68

70

71

72

73

74

106

67

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Report of Independent Registered Public Accounting Firm

To the Board of Directors and Shareholders of InterDigital, Inc.:

In our opinion, the consolidated financial statements listed in the accompanying index present 
fairly,  in  all  material  respects,  the  financial  position  of  InterDigital,  Inc.  and  its  subsidiaries  at 
December 31, 2007 and 2006 and the results of their operations and their cash flows for each 
of  the  three  years  in  the  period  ended  December  31,  2007  in  conformity  with  accounting 
principles  generally  accepted  in  the  United  States  of America.  In  addition,  in  our  opinion,  the 
financial  statement  schedule  listed  in  the  accompanying  index  presents  fairly,  in  all  material 
respects,  the  information  set  forth  therein  when  read  in  conjunction  with  the  related 
consolidated financial statements. Also in our opinion, the Company maintained, in all material 
respects,  effective  internal  control  over  financial  reporting  as  of  December  31,  2007,  based  on 
criteria  established  in  Internal  Control—Integrated  Framework  issued  by  the  Committee  of 
Sponsoring  Organizations  of  the Treadway  Commission  (COSO). The  Company’s  management 
is responsible for these financial statements and financial statement schedule, for maintaining 
effective internal control over financial reporting and for its assessment of the effectiveness of 
internal control over financial reporting, included in “Management’s Annual Report on Internal 
Control  over  Financial  Reporting”  appearing  under  Item  9A.  Our  responsibility  is  to  express 
opinions  on  these  financial  statements,  on  the  financial  statement  schedule,  and  on  the 
Company’s  internal  control  over  financial  reporting  based  on  our  integrated  audits. We 
conducted  our  audits  in  accordance  with  the  standards  of  the  Public  Company Accounting 
Oversight Board (United States). Those standards require that we plan and perform the audits 
to  obtain  reasonable  assurance  about  whether  the  financial  statements  are  free  of  material 
misstatement and whether effective internal control over financial reporting was maintained in 
all material respects. Our audits of the financial statements included examining, on a test basis, 
evidence  supporting  the  amounts  and  disclosures  in  the  financial  statements,  assessing  the 
accounting principles used and significant estimates made by management, and evaluating the 
overall  financial  statement  presentation.  Our  audit  of  internal  control  over  financial  reporting 
included obtaining an understanding of internal control over financial reporting, assessing the 
risk  that  a  material  weakness  exists,  and  testing  and  evaluating  the  design  and  operating 
effectiveness  of  internal  control  based  on  the  assessed  risk.  Our  audits  also  included 
performing  such  other  procedures  as  we  considered  necessary  in  the  circumstances. We 
believe that our audits provide a reasonable basis for our opinions.

As  discussed  in  Note  2  to  the  consolidated  financial  statements,  the  Company  changed  the 
manner in which it accounts for share-based compensation in 2006, and the manner in which it 
accounts for uncertain tax positions in 2007.

68

A  company’s  internal  control  over  financial  reporting  is  a  process  designed  to  provide 
reasonable  assurance  regarding  the  reliability  of  financial  reporting  and  the  preparation  of 
financial  statements  for  external  purposes  in  accordance  with  generally  accepted  accounting 
principles. A  company’s  internal  control  over  financial  reporting  includes  those  policies  and 
procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately 
and  fairly  reflect  the  transactions  and  dispositions  of  the  assets  of  the  company;  (ii)  provide 
reasonable  assurance  that  transactions  are  recorded  as  necessary  to  permit  preparation  of 
financial  statements  in  accordance  with  generally  accepted  accounting  principles,  and  that 
receipts  and  expenditures  of  the  company  are  being  made  only  in  accordance  with 
authorizations  of  management  and  directors  of  the  company;  and  (iii)  provide  reasonable 
assurance  regarding  prevention  or  timely  detection  of  unauthorized  acquisition,  use, 
or  disposition  of  the  company’s  assets  that  could  have  a  material  effect  on  the 
financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or 
detect misstatements. Also, projections of any evaluation of effectiveness to future periods are 
subject to the risk that controls may become inadequate because of changes in conditions, or 
that the degree of compliance with the policies or procedures may deteriorate.

PricewaterhouseCoopers LLP 
Philadelphia, Pennsylvania 
February 29, 2008

69

conSolID aTeD balance SHee TS

InterDigital, Inc. and Subsidiaries

(in thousands, except per share data)

December 31, 

Assets  
Current assets:

Cash and cash equivalents 

Short-term investments 

Accounts receivable 

Deferred tax assets 

Prepaid and other current assets 

Total current assets 

Property and equipment, net 

Patents, net 

Deferred tax assets, net 

Other non-current assets, net 

Total assets 

Liabilities and shareholders’ equity 
Current liabilities:

Current portion of long-term debt 

Accounts payable 

Accrued compensation and related expenses 

Deferred revenue 

Foreign and domestic taxes payable 

Other accrued expenses 

Total current liabilities 

Long-term debt 

Long-term deferred revenue 

Other long-term liabilities 

Total liabilities 

Commitments and contingencies (Notes 6 & 7) 
Shareholders’ equity:

Preferred stock, $0.10 par value, 14,399 shares authorized,  
  0 shares issued and outstanding 

Common Stock, $.01 par value, 100,000 shares authorized, 65,292  
  and 64,393 shares issued and 46,497 and 51,347 shares outstanding 

Additional paid-in capital 

Retained earnings 

Accumulated other comprehensive income (loss) 

2007 

2006

$  92,018 

$  166,385

85,449 

97,581

  130,880 

  131,852

43,734 

19,332 

43,520

14,464

  371,413 

  453,802

24,594 

87,092 

14,834 

36,952 

16,682

70,496

6,418

16,678

  163,472 

  110,274

$  534,885 

$  564,076

$ 

1,311 

$ 

369

40,850 

10,476 

78,899 

15,675 

9,973 

21,913

9,725

70,709

11,448

7,064

  157,184 

  121,228

2,406 

1,203

  224,545 

  160,895

13,683 

5,274

  397,818 

  288,600

— 

653 

—

644

  465,599 

  445,930

  133,308 

  115,383

206 

(46)

  599,766 

  561,911

Treasury stock, 18,795 and 13,046 shares of common held at cost 

  462,699 

  286,435

Total shareholders’ equity 

Total liabilities and shareholders’ equity 

The	accompanying	notes	are	an	integral	part	of	these	statements.

70

  137,067 

  275,476

$  534,885 

$  564,076

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
         
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
         
conSolID aTeD STaTeMenTS oF IncoMe

InterDigital, Inc. and Subsidiaries

(in thousands, except per-share data)

For The Year Ended December 31, 

2007 

2006 

2005

Revenues
Licensing and technology solutions 

Operating expenses:

Sales and marketing 

General and administrative 

Patents administration and licensing 

Development 

Arbitration and litigation contingencies 

Repositioning 

Income from operations 

Other income:

Interest and investment income, net 

Income before income taxes 

Income tax (provision) benefit 

$ 234,232 

$ 480,466 

$ 163,125

7,828 
24,210 
67,587 
87,141 
  24,412 
— 

6,610 

7,914

  20,953 

  24,150

  51,060 

  49,399

  65,427 

  63,095

— 

— 

—

1,480

  211,178 

  144,050 

  146,038

  23,054 

  336,416 

  17,087

8,949 

  13,195 

3,164

  32,003 
(11,999) 

  349,611 

  20,251

 (124,389) 

  34,434

Net income applicable to common shareholders 

$  20,004 

$ 225,222 

$  54,685

Net income per common share—basic 

$ 

0.42 

$ 

4.22 

$ 

1.01

Weighted average number of common shares  
  outstanding—basic 

47,766 

  53,426 

  54,058

Net income per common share—diluted 

$ 

0.40 

$ 

4.04 

$ 

0.96

Weighted average number of common shares  
  outstanding—diluted 

The	accompanying	notes	are	an	integral	part	of	these	statements.

  49,489 

  55,778 

  57,161

71

 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
conSolIDaTeD STaTeMenTS oF SHaReHolDeRS’ 
eQUITY anD coMPReHenSIVe IncoMe

InterDigital Inc. and Subsidiaries

(in thousands, except per share data) 

2.50 Convertible 
Preferred Stock
Shares   Amount

Common Stock

Shares 

Amount

Additional 
Paid-In 
Capital

(Accumulated 
Deficit)  
Retained 
Earnings

Accumulated 
Other 
Comprehensive 
Income (Loss)

Treasury Stock

Shares 

Amount

Total 
Shareholders’ 
Equity

Total 
Comprehensive 
Income

Balance, December 31, 2004 

Net income 

Net change in unrealized loss  
  on short-term investments 

Total comprehensive income 

— 

— 

$  — 

  — 

— 

  — 

59,662 

$  597 

$  339,475 

$ 

(164,524) 

$ 

(66) 

— 

— 

  — 

  — 

— 

— 

54,685 

  — 

— 

(126) 

Exercise of common stock options 

— 

  — 

519 

5 

4,824 

— 

  — 

Sale of common stock under  
  employee stock purchase plan 

Issuance of common stock  
  under profit sharing plan 

Issuance of restricted  
  common stock, net 

Acceration of options 

Partial Reversal of valuatoin allowance  — 

Recognition of deferred tax benefit 

— 

Amortization of unearned compensation  — 

Repurchase of common stock 

Balance, December 31, 2005 

Net income 

Net change in unrealized gain on  
  short-term investments 

Total comprehensive income 

Exercise of common stock options 

Exercise of common stock warrants 

Adjustment to vested options 

Sale of common stock under  
  employee stock perchase plan 

Issuance of common stock under 
  profit sharing plan 

Issuance of restricted  
  common stock, net 

Tax benefit from exercise  
  of stock options 

Amortization of unearned  
  compensation 

Repurchase of common stock 

Balance, December 31, 2006 

Net income 

Net change in unrealized gain  
  on short-term investments 

Total comprehensive income 

Sale of common stock under  
  employee stock purchase plan 

Issuance of common stock  
  under profit sharing plan 

Issuance of restricted  
  common stock, net 

— 

  — 

— 

  — 

— 

— 

— 

— 

— 

  — 

  — 

  — 

  — 

  — 

  — 

  — 

  — 

— 

  — 

— 

— 

— 

  — 

  — 

  — 

— 

  — 

— 

  — 

— 

  — 

— 

— 

— 

— 

  — 

  — 

  — 

  — 

— 

  — 

— 

  — 

— 

  — 

Cumulative effect of adoption of FIN48  — 

Exercise of common stock options 

— 

  — 

  — 

1 

33 

322 

— 

— 

— 

— 

— 

  — 

  — 

3 

  — 

  — 

  — 

  — 

  — 

25 

568 

300 

190 

20,268 

3,227 

8,771 

— 

— 

  — 

— 

  — 

— 

— 

— 

— 

— 

— 

  — 

  — 

  — 

  — 

  — 

  — 

60,537 

605 

377,648 

(109,839) 

(192) 

— 

— 

3,379 

80 

— 

1 

24 

  — 

  — 

34 

1 

  — 

  — 

  — 

— 

— 

39,919 

609 

1,096 

15 

442 

410 

225,222 

  — 

— 

— 

— 

— 

146 

  — 

  — 

  — 

— 

  — 

— 

  — 

— 

  — 

— 

— 

— 

737 

— 

14 

  — 

  — 

  — 

7 

  — 

  — 

— 

— 

20,004 

  — 

— 

252 

— 

6,456 

(2,079) 

  — 

— 

  — 

8 

469 

395 

— 

  — 

— 

  — 

— 

  — 

— 

  — 

148 

2 

Withheld for taxes on issuance of 

restricted common stock 

— 

  — 

Tax benefit from exercise  
of stock options 

Amortization of unearned  
compensation 

Repurchase of common stock 

— 

  — 

— 

— 

  — 

  — 

— 

— 

— 

— 

  — 

(1,865) 

— 

  — 

  — 

5,123 

— 

  — 

  — 

  — 

9,083 

— 

— 

— 

  — 

  — 

4,506 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

2,000 

6,506 

— 

— 

— 

— 

— 

— 

— 

— 

— 

$ 

(59,823) 

$  115,659

54,685 

$ 

54,685

(126) 

(126)

$ 

54,559

4,829 

25 

568 

303 

190 

20,268 

3,227 

8,771 

— 

— 

— 

— 

— 

— 

— 

— 

— 

(34,085) 

(34,085) 

(93,908) 

174,314 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

225,222 

$ 

225,222

146 

146

$ 

225,368

39,953 

610 

1,096 

15 

442 

414 

20,717 

5,074 

(192,527) 

(192,527) 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

— 

20,004 

$ 

20,004

252 

252

$ 

20,256

(2,079) 

6,463 

8 

469 

397 

(1,865) 

5,123 

9,083 

5,749 

(176,264) 

(176,264) 

— 

  — 

372 

4 

— 

— 

— 

  — 

20,717 

— 

  — 

  — 

  — 

5,074 

— 

— 

— 

  — 

  — 

— 

6,540 

64,393 

644 

445,930 

115,383 

(46) 

13,046 

(286,435) 

275,476 

Balance, December 31, 2007 

— 

$  — 

65,292 

$  653 

$  465,599 

$ 

133,308 

$ 

206 

18,795 

$ 

(462,699) 

$  137,067 

The	accompanying	notes	are	an	integral	part	of	these	statements.

72

 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
conSolID aTeD STaTeMenTS oF ca SH FloWS

InterDigital, Inc. and Subsidiaries

(in thousands)

For the Year Ended December 31, 

2007 

2006 

2005

Cash flows from operating activities:
Net income 
Adjustments to reconcile net income to  
  net cash provided by operating activities: 
Depreciation and amortization 
Deferred revenue recognized 
Increase in deferred revenue 
Deferred income taxes 
Share-based compensation 
Tax benefit from stock options 
Non-cash repositioning charges 
Other 
Decrease (Increase) in assets: 
Receivables 
Deferred charges 
Other current assets 
Increase (decrease) in liabilities: 
Accounts payable 
Accrued compensation 
Accrued taxes payable 

Other accrued expenses 

$ 

20,004 

$  225,222 

$ 

54,685

21,990 
(119,596) 
191,436 
(8,630) 
9,820 
— 
— 
179 

972 
3,299 
(5,354) 

26,127 
3,018 
8,632 

830 

14,621 
(196,294) 
336,650 
40,846 
7,014 
— 
— 
132 

(112,318) 
(10,328) 
(3,326) 

3,958 
(3,817) 
11,291 

1,160 

11,421
(65,553)
57,605
(37,298)
9,766
2,343
222
(75)

(7,922)
1,509
(409)

846
6,672
(219)

81

Net cash provided by operating activities 

152,727 

314,811 

33,674

Cash flows from investing activities:
Purchases of short-term investments 
Sales of short-term investments 
Purchases of property and equipment 
Capitalized patent costs 
Capitalized technology license costs 
Acquisition of patents 
Proceeds from sale of fixed assets 
Long-term investments 

(133,787) 
146,581 
(13,826) 
(23,852) 
(24,440) 
— 
— 
(5,000) 

(172,210) 
152,550 
(11,152) 
(18,865) 
(2,700) 
— 
— 
— 

(151,453)
189,685
(5,372)
(16,954)
—
(8,050)
169 
—

Net cash (used) provided by investing activities 

(54,324) 

(52,377) 

8,025

Cash flows from financing activities:
Net proceeds from exercise of stock options and warrants  
  and employee stock purchase plan 
Payments on long-term debt, including capital lease obligations 
Repurchase of common stock 
Tax benefit from share-based compensation 

Net cash used by financing activities 

Net (decrease) increase in cash and cash equivalents 

Cash and cash equivalents, beginning of period 

6,472 
(1,247) 
(183,118) 
5,123 

40,578 
(351) 
(184,870) 
20,717 

(172,770) 

(123,926) 

(74,367) 

138,508 

166,385 

27,877 

4,853
(327)
(34,085)
—

(29,559)

12,140

15,737

Cash and cash equivalents, end of period 

$ 

92,018 

$  166,385 

$ 

27,877

Supplemental cash flow information: 

Interest paid 

Income taxes paid, including foreign withholding taxes 

Non-cash investing and financing activities  
  Issuance of restricted common stock 

Issuance of common stock for profit sharing 

Accrued purchase of treasury stock 

Leased asset additions and related obligation 

The accompanying notes are an integral part of these statements.

$ 

$ 

$ 

$ 

$ 

$ 

357 

16,099 

407 

469 

803 

3,392 

$ 

$ 

$ 

$ 

$ 

$ 

383 

51,488 

414 

442 

7,657 

— 

$ 

$ 

$ 

$ 

$ 

$ 

183

755

494

568

—

365

73

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

InterDigital, Inc. and Subsidiaries

DECEMBER 31, 2007

1.  bacKgR oUnD

InterDigital,  Inc.  (collectively  with  its  subsidiaries  referred  to  as “InterDigital,”  the “Company,” 
“we,” “us”  and “our”)  designs  and  develops  advanced  digital  wireless  technology  solutions. 
We are developing technologies that may be utilized to extend the life of the current generation 
of  products,  may  be  applicable  to  multiple  generational  standards  such  as  2G,  2.5G  and  3G 
cellular  standards,  as  well  as  IEEE  802  wireless  standards,  and  may  have  applicability  across 
multiple  air  interfaces.  In  conjunction  with  our  technology  development,  we  have  assembled 
an  extensive  body  of  technical  know-how,  related  intangible  products  and  a  broad  patent 
portfolio. We offer our products and solutions for license or sale to semiconductor companies 
and producers of wireless equipment and components.

Legal Entity Reorganization

On July 2, 2007, for the purpose of reorganizing into a holding Company structure, InterDigital 
Communications Corporation executed a Plan of Reorganization and an Agreement and Plan of 
Merger  (“Merger”)  with  InterDigital,  Inc.,  a  newly  formed  Pennsylvania  corporation  and 
another newly formed Pennsylvania corporation owned 100% by InterDigital, Inc. As a result of 
the  Merger,  InterDigital  Communications  Corporation  became  a  wholly-owned  subsidiary  of 
InterDigital,  Inc. These  transactions  are  herein  referred  to  collectively  as  the “Reorganization.” 
As  a  result  of  the  Reorganization,  neither  the  business  conducted  by  InterDigital,  Inc. 
and  InterDigital  Communications  Corporation  in  the  aggregate,  nor  the  consolidated  assets 
and  liabilities  of  InterDigital,  Inc.  and  InterDigital  Communications  Corporation,  in  the 
aggregate, changed.

By  virtue  of  the  Merger,  each  share  of  InterDigital  Communications  Corporation’s  outstanding 
common stock has been converted, on a share-for-share basis, into a share of common stock of 
InterDigital, Inc. As a result, each shareholder of InterDigital Communications Corporation has 
become the owner of an identical number of shares of common stock of InterDigital, Inc.

Further,  each  outstanding  stock  option  and  restricted  stock  unit  (“RSU”)  with  respect  to  the 
acquisition  of  shares  of  InterDigital  Communications  Corporation’s  common  stock  now 
represents  a  stock  option  or  RSU,  as  the  case  may  be,  with  respect  to  the  acquisition  of  an 
identical  number  of  shares  of  InterDigital,  Inc.’s  common  stock,  upon  the  same  terms  and 
conditions as the original stock option or RSU.

Immediately following the Merger, the provisions of the articles of incorporation and bylaws of 
InterDigital,  Inc.  were  the  same  as  those  of  InterDigital  Communications  Corporation  prior  to 
the Merger. Immediately following the Merger, the authorized capital stock of InterDigital, Inc., 
the  designations,  rights,  powers  and  preferences  of  such  capital  stock  and  the  qualifications, 
limitations  and  restrictions  thereof  were  also  the  same  as  the  capital  stock  of  InterDigital 
Communications  Corporation  immediately  prior  to  the  Merger.  Immediately  following  the 
Merger, the directors and executive officers of InterDigital, Inc., were the same individuals who 
were directors and executive officers, respectively, of InterDigital Communications Corporation 
immediately prior to the Merger.

74

2.  SUMMaRY  oF  SIgnIFIca nT  acc oUnTIng  PolIcIeS

Principles of Consolidation

The  consolidated  financial  statements  include  the  accounts  of  the  Company  and  its  wholly-
owned  subsidiaries.  All  significant  intercompany  accounts  and  transactions  have  been 
eliminated in consolidation.

Use of Estimates

The  preparation  of  financial  statements  in  conformity  with  generally  accepted  accounting 
principles  requires  management  to  make  estimates  and  assumptions  that  affect  the  reported 
amounts  of  assets  and  liabilities,  the  disclosure  of  contingent  assets  and  liabilities  as  of  the 
date  of  the  financial  statements  and  the  reported  amounts  of  revenues  and  expenses  during 
the reporting period. Actual results could differ from these estimates. We believe the accounting 
policies that are of particular importance to the portrayal of our financial condition and results, 
and  that  may  involve  a  higher  degree  of  complexity  and  judgment  in  their  application 
compared  to  others,  are  those  relating  to  patents,  contingencies,  revenue  recognition, 
compensation,  and  income  taxes.  If  different  assumptions  were  made  or  different  conditions 
had existed, our financial results could have been materially different.

Cash, Cash Equivalents and Short-Term Investments

We consider all highly liquid investments purchased with initial maturities of three months or 
less  to  be  cash  equivalents.  Management  determines  the  appropriate  classification  of  our 
investments  at  the  time  of  acquisition  and  re-evaluates  such  determination  at  each  balance 
sheet  date. At  December  31,  2007  and  2006,  all  of  our  short-term  investments  were  classified 
as  available-for-sale  and  carried  at  amortized  cost,  which  approximates  market  value. 
We  determine  the  cost  of  securities  by  specific  identification  and  report  unrealized  gains  and 
losses  on  our  available-for-sale  securities  as  a  separate  component  of  equity.  Net  unrealized 
losses  on  short-term  investments  were  $0.2  million  at  December  31,  2007  and  $0.4  million  at 
December 31, 2006. Realized gains and losses for 2007, 2006 and 2005 were as follows (in thousands):

Year 

2007 

2006 

2005 

Gains 

Losses 

$  112 
$  — 

$  — 

$ 
$ 

$ 

(366) 
— 

(82) 

$ 
$ 

$ 

Net

(254)
—

(82)

Cash and cash equivalents at December 31, 2007 and 2006 consisted of the following (in thousands): 

December 31, 

Money market funds and demand accounts 

Repurchase agreements 

2007 

2006

$  91,818 
200 

$  166,043

 342

$  92,018 

$  166,385

Our repurchase agreements are fully collateralized by United States Government securities and 
are stated at cost, which approximates fair market value.

75

 
 
 
 
         
Short-term  investments  as  of  December  31,  2007  and  2006  consisted  of  the  following 
(in thousands):

December 31, 

US Government agency instruments 

Corporate bonds 

2007 

2006

$  52,310 
  33,139 

$  52,392

  45,189

$ 85,449 

$  97,581

At December 31, 2007 and 2006, $67.6 million and $71.5 million, respectively, of our short-term 
investments  had  contractual  maturities  within  one  year. The  remaining  portions  of  our  short-
term  investments  had  contractual  maturities  within  two  to  five  years  except  for  one  that 
matures in 2035.

Property and Equipment

Property  and  equipment  are  stated  at  cost.  Depreciation  and  amortization  of  property  and 
equipment are provided using the straight-line method. The estimated useful lives for computer 
equipment,  computer  software,  machinery  and  equipment,  and  furniture  and  fixtures  are 
generally  three  to  five  years.  Leasehold  improvements  are  being  amortized  over  the  lesser  of 
their  estimated  useful  lives  or  their  respective  lease  terms,  which  are  generally  five  to  ten 
years.  Buildings  are  being  depreciated  over  twenty-five  years.  Expenditures  for  major 
improvements  and  betterments  are  capitalized  while  minor  repairs  and  maintenance  are 
charged to expense as incurred.

Internal-Use Software Costs

Under  the  provisions  of  the  American  Institute  of  Certified  Public  Accountants  (AICPA) 
Statement of Position (SOP) 98-1 Accounting for the Costs of Computer Software Developed or 
Obtained  for  Internal-Use,  we  capitalize  costs  associated  with  software  for  internal-use. All 
computer  software  costs  capitalized  to  date  relate  to  the  purchase,  development  and 
implementation of engineering, accounting and other enterprise software. Capitalization begins 
when  the  preliminary  project  stage  is  complete  and  ceases  when  the  project  is  substantially 
complete and ready for its intended purpose. Capitalized computer software costs are amortized 
over their estimated useful life of three years.

Investments in Other Entities

In first quarter 2007, we made a $5.0 million investment for a non-controlling interest in Kineto 
Wireless  (“Kineto”). We  do  not  have  significant  influence  over  Kineto  and  are  accounting  for 
this  investment  using  the  cost  method  of  accounting.  Under  the  cost  method,  we  will  not 
adjust  our  investment  balance  when  the  entity  reports  profit  or  loss  but  will  monitor  the 
investment  for  an  other-than-temporary  decline  in  value. When  assessing  whether  an  other-
than-temporary  decline  in  value  has  occurred,  we  will  consider  such  factors  as  the  valuation 
placed on the investee in subsequent rounds of financing, the performance of Kineto relative to 
its own performance targets and business plan, and Kineto’s revenue and cost trends, liquidity 
and cash position, including its cash burn rate, and updated forecasts.

Patents

We capitalize external costs, such as filing fees and associated attorney fees, incurred to obtain 
issued  patents  and  patent  license  rights. We  expense  costs  associated  with  maintaining  and 
defending  patents  subsequent  to  their  issuance. We  amortize  capitalized  patent  costs  on  a 
straight-line basis over the estimated useful lives of the patents. Ten years represents our best 
estimate of the average useful life of our patents relating to technology developed directly by 

76

 
 
         
us. The ten year estimated useful life of internally generated patents is based on our assessment 
of such factors as the integrated nature of the portfolios being licensed, the overall makeup of 
the  portfolio  over  time  and  the  length  of  license  agreements  for  such  patents. The  estimated 
useful lives of acquired patents and patent rights, however, have and will continue to be based 
on  a  separate  analysis  related  to  each  acquisition  and  may  differ  from  the  estimated  useful 
lives  of  internally  generated  patents. We  assess  the  potential  impairment  to  all  capitalized  net 
patent costs when events or changes in circumstances indicate that the carrying amount of our 
patent  portfolio  may  not  be  recoverable. Amortization  expense  related  to  capitalized  patent 
costs was $9.3 million, $7.8 million and $6.3 million in 2007, 2006 and 2005, respectively. As of 
December  31,  2007  and  2006,  we  had  capitalized  gross  patent  costs  of  $132.1  million  and 
$106.2  million,  respectively,  which  were  offset  by  accumulated  amortization  of  $45.0  million 
and $35.7 million, respectively. Our capitalized gross patent costs in 2005 increased $8.1 million 
as  a  result  of  patents  acquired  from  third  parties. The  weighted  average  estimated  useful  life 
of  our  capitalized  patent  costs  at  December  31,  2007  and  2006  was  11.0  years  and 
11.2 years, respectively.

The estimated aggregate amortization expense related to our patents balance as of December 
31, 2007 is as follows (in thousands):

2008 

2009 

2010 

2011 

2012 

$ 10,366

  10,223

  10,064

  9,803

  9,470

Intangible Assets

Our other non-current asset balance at December 31, 2007 and 2006 includes $22.8 million and 
$4.2 million, respectively, representing the net value of licensed technology used in our current 
and future product offerings. These licenses are being amortized over a period of five years and 
are presented net of accumulated amortization of $4.6 million and $0.9 million, respectively.

Contingencies

We  recognize  contingent  assets  and  liabilities  in  accordance  with  Statement  of  Financial 
Accounting Standards (SFAS) No. 5 Accounting for Contingencies.

Revenue Recognition

We derive the majority of our revenue from patent licensing. The timing and amount of revenue 
recognized from each licensee depends upon a variety of factors, including the specific terms 
of  each  agreement  and  the  nature  of  the  deliverables  and  obligations.  Such  agreements  are 
often  complex  and  multi-faceted. These  agreements  can  include,  without  limitation,  elements 
related  to  the  settlement  of  past  patent  infringement  liabilities,  up-front  and  non-refundable 
license  fees  for  the  use  of  patents  and/or  know-how,  patent  and/or  know-how  licensing 
royalties  on  covered  products  sold  by  licensees,  cross  licensing  terms  between  us  and  other 
parties,  the  compensation  structure  and  ownership  of  intellectual  property  rights  associated 
with contractual technology development arrangements, and advanced payments and fees for 
service  arrangements.  Due  to  the  combined  nature  of  some  agreements  and  the  inherent 
difficulty  in  establishing  reliable,  verifiable  and  objectively  determinable  evidence  of  the  fair 
value  of  the  separate  elements  of  these  agreements,  the  total  revenue  resulting  from  such 
agreements  may  sometimes  be  recognized  over  the  combined  performance  period.  In  other 
circumstances, such as those agreements involving consideration for past and expected future 
patent  royalty  obligations,  the  determining  factors  necessary  to  allocate  revenue  across  past, 

77

 
current, and future years may be difficult to establish. In such instances, after consideration of 
the  particular  facts  and  circumstances,  the  appropriate  recording  of  revenue  between  periods 
may  require  the  use  of  judgment.  Generally,  we  will  not  recognize  revenue  or  establish  a 
receivable related to payments that are due greater than twelve months from the balance sheet 
date.  In  all  cases,  revenue  is  only  recognized  after  all  of  the  following  criteria  are  met:  (1) 
written  agreements  have  been  executed;  (2)  delivery  of  technology  or  intellectual  property 
rights has occurred or services have been rendered; (3) fees are fixed or determinable; and (4) 
collectibility of fees is reasonably assured

Patent License Agreements

Upon  signing  a  patent  license  agreement,  we  provide  the  licensee  permission  to  use  our 
patented inventions in specific applications. We have no material future obligations associated 
with such licenses, other than, in some instances, to provide such licensees with notification of 
future  license  agreements  pursuant  to  most  favored  licensee  rights.  Under  our  patent  license 
agreements,  we  typically  receive  one  or  a  combination  of  the  following  forms  of  payment  as 
consideration  for  permitting  our  licensees  to  use  our  patented  inventions  in  their  applications 
and products:

Consideration  for  Prior  Sales:  Consideration  related  to  a  licensee’s  product  sales  from  prior 
periods  may  result  from  a  negotiated  agreement  with  a  licensee  that  utilized  our  patented 
inventions  prior  to  signing  a  patent  license  agreement  with  us  or  from  the  resolution  of  a 
disagreement  or  arbitration  with  a  licensee  over  the  specific  terms  of  an  existing  license 
agreement.  In  each  of  these  cases,  we  record  the  consideration  as  revenue. We  may  also 
receive consideration from the settlement of patent infringement litigation where there was no 
prior  patent  license  agreement. We  record  the  consideration  related  to  such  litigation  as 
other income.

Fixed  Fee  Royalty  Payments:  Up-front,  non-refundable  royalty  payments  that  fulfill  the 
licensee’s obligations to us under a patent license agreement, for a specified time period or for 
the term of the agreement.

Prepayments: Up-front, non-refundable royalty payments towards a licensee’s future obligations 
to us related to its expected sales of covered products in future periods. Our licensees’ obligations 
to  pay  royalties  extend  beyond  the  exhaustion  of  their  Prepayment  balance.  Once  a  licensee 
exhausts  its  Prepayment  balance,  we  may  provide  them  with  the  opportunity  to  make  another 
Prepayment toward future sales or it will be required to make Current Royalty Payments.

Current Royalty Payments: Royalty payments covering a licensee’s obligations to us related to 
its sales of covered products in the current contractual reporting period.

We  recognize  revenues  related  to  Consideration  for  Prior  Sales  when  we  have  obtained  a 
signed agreement, identified a fixed or determinable price and determined that collectibility is 
reasonably  assured. We  recognize  revenues  related  to  Fixed  Fee  Royalty  Payments  on  a 
straight-line  basis  over  the  effective  term  of  the  license. We  utilize  the  straight-line  method 
because we have no future obligations under these licenses and we can not reliably predict in 
which  periods,  within  the  term  of  a  license,  the  licensee  will  benefit  from  the  use  of  our 
patented inventions.

78

Licensees that either owe us Current Royalty Payments or have Prepayment balances provide 
us with quarterly or semi-annual royalty reports that summarize their sales of covered products 
and their related royalty obligations to us. We typically receive these royalty reports subsequent 
to  the  period  in  which  our  licensees’  underlying  sales  occurred.  Consideration  for  Prior  Sales, 
the  exhaustion  of  Prepayments  and  Current  Royalty  Payments  are  often  calculated  based  on 
related per-unit sales of covered products.

During 2007, we recognized revenue of $5.2 million related to unpaid patent licensee royalties. 
We based our recognition of this revenue on royalty reports received, despite the fact that the 
licensee has expressed its belief that it does not have a current payment obligation. We believe 
that we are entitled to these royalty payments and the eventual collection of these amounts is 
reasonably assured.

Technology Solutions Revenue

Technology  solutions  revenue  consists  primarily  of  revenue  from  software  licenses  and 
engineering  services.  Software  license  revenues  are  recognized  in  accordance  with  the 
American  Institute  of  Certified  Public Accountants  Statement  of  Position  (SOP)  97-2  Software 
Revenue  Recognition  and  SOP  98-9 Modification  of  SOP  97-2,  Software  Revenue  Recognition. 
When  the  arrangement  with  the  customer  includes  significant  production,  modification  or 
customization  of  the  software,  we  recognize  the  related  revenue  using  the  percentage-of-
completion method in accordance with SOP 81-1 Accounting for Performance of Construction-
Type  and  Certain  Production-Type  Contracts.  Under  this  method,  revenue  and  profit  are 
recognized throughout the term of the contract, based on actual labor costs incurred to date as 
a  percentage  of  the  total  estimated  labor  costs  related  to  contract.  Changes  in  estimates  for 
revenues, costs and profits are recognized in the period in which they are determinable. When 
such estimates indicate that costs will exceed future revenues and a loss on the contract exists, 
a provision for the entire loss is recognized at that time.

We recognize revenues associated with engineering service arrangements that are outside the 
scope  of  SOP  81-1  on  a  straight-line  basis  under  Staff Accounting  Bulletin  No.  104  Revenue 
Recognition, unless evidence suggests that the revenue is earned or obligations are fulfilled in 
a different pattern, over the contractual term of the arrangement or the expected period during 
which those specified services will be performed, whichever is longer. In such cases, we often 
recognize  revenue  using  proportional  performance  and  measure  the  progress  of  our 
performance  based  on  the  relationship  between  incurred  contract  costs  and  total  estimated 
contract costs. Our most significant cost has been labor and we believe both labor hours and 
labor  cost  provide  a  measure  of  the  progress  of  our  services. The  effect  of  changes  to  total 
estimated  contract  costs  is  recognized  in  the  period  such  changes  are  determined.  Estimated 
losses, if any, are recorded when the loss first becomes probable and reasonably estimable.

When technology solutions agreements include royalty payments, we recognize revenue from 
the  royalty  payments  using  the  same  methods  described  above  under  our  policy  for 
recognizing revenue from patent license agreements.

79

Deferred Charges

From time-to-time, we use sales agents to assist us in our licensing activities. We often pay a 
commission related to successfully negotiated license agreements. The commission rate varies 
from agreement to agreement. Commissions are normally paid shortly after our receipt of cash 
payments associated with the patent license agreements.

We  defer  recognition  of  commission  expense  related  to  both  Prepayments  and  Fixed  Fee 
Royalty Payments and amortize these expenses in proportion to our recognition of the related 
revenue.  In  2007,  2006  and  2005,  we  paid  cash  commissions  of  approximately  $1.7  million, 
$18.8 million and $3.1 million and recognized commission expense of $4.7 million, $8.4 million, 
and  $4.5  million,  respectively,  as  part  of  patent  administration  and  licensing  expense.  At 
December  31,  2007,  2006  and  2005  we  had  deferred  commission  expense  of  approximately 
$4.0  million,  $4.1  million  and  $1.4  million,  respectively,  included  within  prepaid  and  other 
current  assets  and  $8.9  million,  $12.0  million  and  $4.4  million,  respectively,  included  within 
other non-current assets.

Research and Development

Research  and  development  expenditures  are  expensed  in  the  period  incurred,  except  certain 
software development costs which are capitalized between the point in time that technological 
feasibility  of  the  software  is  established  and  the  product  is  available  for  general  release  to 
customers. We did not have any such capitalized software costs in any period presented.

Acquired Technology

We  capitalize  the  cost  of  technology  solutions  and  platforms  we  acquire  or  license  from  third 
parties when they have a future benefit and the development of these solutions and platforms 
is substantially complete at the time they are acquired or licensed.

At  December  31,  2007  and  2006,  our  other  non-current  assets,  net  included  $22.9  million  and 
$4.2 million, respectively, of capitalized technology solutions net of accumulated amortization.

Compensation Programs

Through  December  31,  2005,  we  accounted  for  stock-based  employee  compensation  using 
the  intrinsic  value  method  and  provided  pro  forma  disclosures  related  to  our 
stock-based  compensation  under  the  provisions  of  SFAS  No.  148  Accounting  for  Stock-Based 
Compensation—Transition  and  Disclosure  an  amendment  of  Financial Accounting  Standards 
Board (FASB) Statement No. 123. On January 1, 2006, we adopted the provisions of SFAS No. 
123  (revised  2004),  Share-Based  Payment,  using  the  modified-prospective  method.  SFAS  No. 
123(R)  requires  that  compensation  cost  relating  to  share-based  payment  transactions  be 
recognized in financial statements based on the fair value of the instruments issued. SFAS No. 
123(R)  covers  a  wide  range  of  share-based  compensation  arrangements  including  share 
options,  restricted  share  plans,  performance-based  awards,  share  appreciation  rights  and 
employee  share  purchase  plans.  SFAS  No.  123(R)  also  amends  No.  95  Statement  of  Cash 
Flows,  to  require  that  excess  tax  benefits,  as  defined,  realized  from  the  exercise  of  stock 
options be reported as a financing cash inflow rather than as a reduction of taxes paid in flow 
from operations.

In  fourth  quarter  2005,  we  accelerated  the  vesting  of  all  remaining  unvested  options. We 
recorded  a  charge  of  approximately  $0.2  million  related  to  the  acceleration. This  charge  was 
based, in part, on our estimate that approximately 12% of the accelerated options would have 
been forfeited had the acceleration not occurred. The acceleration eliminates a non-cash charge 
of approximately $7.1 million that would have been recognized under SFAS No. 123(R) between 

80

2006 and 2011. Prior to our January 1, 2006 adoption of SFAS No. 123(R), no other option-based 
employee  compensation  cost  was  reflected  in  net  income,  as  all  options  granted  under  those 
plans had an exercise price equal to the market value of the underlying common stock on the 
date of grant. The following table illustrates the effect on net income and earnings per share if 
we  had  applied  the  fair  value  recognition  provisions  of  SFAS  No.  123  Accounting  for 
Stock-Based Compensation, to stock-based employee compensation (in thousands, except per 
share data) in 2005:

For the Year Ended December 31, 

Net income applicable to common shareholders—as reported 

Add: Stock-based employee compensation expense included  
  in reported net income 

Deduct: Total stock-based employee compensation expense  
  determined under fair value based method for all awards(a) 
Tax effect 

Net income (loss) applicable to Common Shareholders—pro forma 

Net income per share—as reported—basic 

Net income per share—as reported—diluted 

Net income (loss) per share—pro forma—basic 

Net income (loss) per share—pro forma—diluted 

2005

$  54,685

9,766

(20,784)

3,746

$ 

47,413

1.01

0.96

0.88

0.83

(a)  In 2005, we recorded a pro-forma charge of $7.1 million associated with the acceleration of 0.8 million unvested options.

The  fair  value  of  each  option  grant  is  estimated  on  the  date  of  grant  using  the  Black-Scholes 
option pricing model with the following weighted-average assumptions:

For the Year Ended December 31, 

Expected option life (in years) 

Risk-free interest rate 

Volatility 

Dividend yield 

  Weighted-average fair value 

2005

5.7

4.1%

80.0%

—  

$  12.78

SFAS No. 123(R) requires that we reserve for estimated forfeitures of stock-based compensation 
awards. In 2006, we recorded a reduction in operating expenses for the cumulative effect of a 
change  in  accounting  principle  of  less  than  $0.2  million  upon  adopting  SFAS  No.  123(R). This 
cumulative  effect  adjustment  was  recorded  to  apply  an  estimated  forfeiture  rate  of  3%  to 
unvested restricted stock units (RSUs) which had been issued under the 2005-2007 cycle of our 
Long Term  Compensation  Program  (LTCP)  and  which  remained  unvested  and  outstanding  at 
December 31, 2005. At December 31, 2007 and 2006, we have estimated the forfeiture rates for 
outstanding RSUs to be between 0% and 16% over their lives of one to three years, depending 
upon the group receiving the grant and the specific terms of the award issued.

In  2006,  we  adopted  the  short-cut  method  to  establish  the  historical  additional  paid-in-capital 
pool (APIC Pool) related to the tax effects of employee share-based compensation. Any positive 
balance  would  be  available  to  absorb  tax  shortfalls  (which  occur  when  the  tax  deductions 
resulting  from  share-based  compensation  are  less  than  the  related  book  expense)  recognized 
subsequent to the adoption of SFAS No. 123(R). We did not incur any net tax shortfalls in 2007 
or 2006.

81

 
 
 
 
 
 
 
 
 
 
 
In all periods, our policy has been to set the value of RSU and restricted stock awards equal to 
the  value  of  our  underlying  common  stock  on  the  date  of  grant. We  amortize  expense  for  all 
such awards using an accelerated method.

Concentration of Credit Risk and Fair Value of Financial Instruments

Financial instruments that potentially subject us to concentration of credit risk consist primarily 
of  cash  equivalents,  short-term  investments,  and  accounts  receivable. We  place  our  cash 
equivalents and short-term investments only in highly rated financial instruments and in United 
States  Government  instruments. We  believe  that  the  book  value  of  our  financial  instruments 
approximate their fair values.

Our accounts receivable are derived principally from patent license agreements and technology 
solutions. At December 31, 2007, two customers represented 73% and 15%, respectively, of our 
accounts receivable balance. At December 31, 2006, two customers represented 72% and 18%, 
respectively,  of  our  accounts  receivable  balance. We  perform  ongoing  credit  evaluations  of 
our  customers  who  generally  include  large,  multi-national,  wireless  telecommunications 
equipment manufacturers.

Impairment of Long-Lived Assets

Pursuant to SFAS No. 144, Accounting for the Impairment or Disposal of Long-Lived Assets, we 
evaluate long-lived assets and intangible assets for impairment when factors indicate that the 
carrying  value  of  an  asset  may  not  be  recoverable. When  factors  indicate  that  such  assets 
should  be  evaluated  for  possible  impairment,  we  review  the  realizability  of  our  long-lived 
assets  by  analyzing  the  projected  undiscounted  cash  flows  in  measuring  whether  the  asset  is 
recoverable.  In  2005,  we  recorded  an  impairment  to  our  fixed  assets  of  approximately  $0.2 
million in connection with our 2005 Repositioning (Note 4). No such adjustments were recorded 
in 2007 or 2006.

Income Taxes

Income  taxes  are  accounted  for  under  the  asset  and  liability  method.  Under  this  method, 
deferred  tax  assets  and  liabilities  are  recognized  for  the  estimated  future  tax  consequences 
attributable to differences between the financial statement carrying amounts of existing assets 
and  liabilities  and  their  respective  tax  bases,  and  operating  loss  and  tax  credit  carryforwards. 
Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in 
which  those  temporary  differences  are  expected  to  be  recovered  or  settled. The  effect  on 
deferred  tax  assets  and  liabilities  of  a  change  in  tax  rates  is  recognized  in  the  Consolidated 
Statement of Operations in the period that includes the enactment date. A valuation allowance 
is  recorded  to  reduce  the  carrying  amounts  of  deferred  tax  assets  if  management  has 
determined that it is more likely than not that such assets will not be realized.

In  addition,  the  calculation  of  tax  liabilities  involves  significant  judgment  in  estimating  the 
impact of uncertainties in the application of complex tax laws. We are subject to examinations 
by  the  Internal  Revenue  Service  (IRS)  and  other  taxing  jurisdictions  on  various  tax  matters, 
including  challenges  to  various  positions  we  assert  in  our  filings.  In  the  event  that  the  IRS  or 
another  taxing  jurisdiction  levies  an  assessment  in  the  future,  it  is  possible  the  assessment 
could  have  a  material  adverse  effect  on  our  consolidated  financial  condition  or  results 
of operations.

Effective  January  1,  2007  the  Company  adopted  FASB  Interpretation  No.  48,  Accounting  for 
Uncertainty  in  Income Taxes  (FIN  48). This  interpretation  clarifies  the  criteria  for  recognizing 
income tax benefits under FASB Statement No. 109, Accounting for income taxes, and requires 
additional  disclosures  about  uncertain  tax  positions.  Under  FIN  48  the  financial  statement 

82

recognition  of  the  benefit  for  a  tax  position  is  dependent  upon  the  benefit  being  more  likely 
than  not  to  be  sustainable  upon  audit  by  the  applicable  tax  authority.  If  this  threshold  is  met, 
the tax benefit is then measured and recognized at the largest amount that is greater than 50 
percent likely of being realized upon ultimate settlement.

We  adopted  FIN  48,  on  January  1,  2007. As  a  result  of  the  implementation,  we  recognized  a 
$2.1 million increase to reserves for uncertain tax positions. This increase, related to federal tax 
credits, was accounted for as a reduction to retained earnings on the balance sheet. Including 
this  cumulative  effect  adjustment,  on  January  1,  2007  we  had  $6.2  million  of  net  federal 
tax  benefits  that,  if  recognized,  would  reduce  our  effective  income  tax  rate  in  the 
period recognized.

Prior  to  the  adoption  of  FIN  48,  we  accrued  for  tax  contingencies  that  have  met  both  the 
probable  and  reasonably  estimable  criteria. As  of  December  31,  2006  and  2005,  there  were 
certain  tax  contingencies  that  either  were  not  considered  probable  or  were  not  reasonably 
estimable  by  us  at  that  time.  In  the  event  that  the  IRS  or  another  taxing  jurisdiction  levies  an 
assessment in the future, it is possible the assessment could have a material adverse effect on 
our consolidated financial condition or results of operations.

In  2007  and  2006  we  credited  foreign  source  withholding  tax  payments  against  our  U.S. 
Federal Income Tax Liability. Prior to 2006, we recognized deferred tax assets related to deferred 
revenue  for  both  U.S.  Federal  Income Tax  purposes  and  non-U.S.  jurisdictions  that  assess  a 
source withholding  tax  on related  royalty  payments. We expense these deferred tax assets as 
we recognize the revenue and the related temporary differences reverse.

Net Income Per Common Share

Basic  earnings  per  share  (EPS)  are  calculated  by  dividing  income  available  to  common 
shareholders  by  the  weighted-average  number  of  common  shares  outstanding  for  the  period. 
Diluted EPS reflects the potential dilution that could occur if options, warrants or other securities 
with features that could result in the issuance of common stock were exercised or converted to 
common stock. The following tables reconcile the numerator and the denominator of the basic 
and diluted net income per share computation (in thousands, except for per share data):

For the Year Ended December 31, 2007 

Income per Share—Basic:

Income 
(Numerator) 

Shares 
(Denominator) 

Per-Share 
Amount

Income available to common shareholders 

Dilutive effect of options, warrants and RSUs 

$  20,004 

— 

47,766 

1,723 

$  0.42

(0.02)

Income per Share—Diluted:

Income available to common shareholders plus  
  dilutive effects of options, warrants and RSUs 

For the Year Ended December 31, 2006 

Income per Share—Basic:

$  20,004 

49,489 

$  0.40

Income 
(Numerator) 

Shares 
(Denominator) 

Per-Share 
Amount

Income available to common shareholders 

$  225,222 

Dilutive effect of options, warrants and RSUs 

— 

53,426 

2,352 

$  4.22

(0.18)

Income per Share—Diluted: 

Income available to common shareholders 
  plus dilutive effects of options, warrants,  
  RSUs and convertible preferred stock 

$  225,222 

55,778 

$  4.04

83

 
 
 
 
 
 
 
 
 
 
 
 
For the Year Ended December 31, 2005 

Income per Share—Basic:

Income 
(Numerator) 

Shares 
(Denominator) 

Per-Share 
Amount

Income available to common shareholders 

$  54,685 

Dilutive effect of options, warrants, and RSUs 

— 

54,058 

3,103 

$  1.01

  (0.05)

Income per Share—Diluted:

Income available to common shareholders  
plus dilutive effects of options,  
warrants and RSUs 

$  54,685 

57,161 

$  0.96

For  the  years  ended  December  31,  2007,  2006  and  2005,  options  and  warrants  to  purchase 
approximately  0.5  million,  0.7  million  and  1.8  million  shares,  respectively,  of  common  stock 
were excluded from the computation of diluted EPS because the exercise prices of the options 
were  greater  than  the  weighted  average  market  price  of  our  common  stock  during  the 
respective periods and, therefore, their effect would have been anti-dilutive.

Recent Accounting Pronouncements

SFAS No. 157

In  September  2006,  the  Financial Accounting  Standard  Board  (FASB)  issued  Statement  of 
Financial Accounting  Standard  (SFAS)  No.  157,  Fair Value  Measurements,  which  defines  fair 
value,  establishes  a  framework  for  measuring  fair  value  in  generally  accepted  accounting 
principles,  and  expands  disclosures  about  fair  value  measurements. This  statement  does  not 
require any new fair value measurements, but provides guidance on how to measure fair value 
by providing a fair value hierarchy used to classify the source of the information. For financial 
assets  and  liabilities,  SFAS  No.  157  is  effective  for  us  beginning  January  1,  2008.  In  February 
2008,  the  FASB  deferred  the  effective  date  of  SFAS  No.  157  for  all  non-financial  assets 
and  non-financial  liabilities,  except  those  that  are  recognized  or  disclosed  at  fair  value  in 
the  financial  statements  on  a  recurring  basis  (at  least  annually)  until  January  1,  2009. 
We  believe  the  adoption  of  SFAS  157  will  not  have  a  material  impact  on  our  consolidated 
financial statements.

SFAS No. 159

In February 2007, the FASB issued SFAS No. 159, The Fair Value Option for Financial Assets and 
Financial  Liabilities,  which  provides  companies  with  an  option  to  report  selected  financial 
assets  and  liabilities  at  fair  value  in  an  attempt  to  reduce  both  complexity  in  accounting  for 
financial  instruments  and  the  volatility  in  earnings  caused  by  measuring  related  assets  and 
liabilities  differently. This  Statement  is  effective  for  us  beginning  January  1,  2008. We  do  not 
anticipate  electing  the  SFAS  159  option  for  our  existing  financial  assets  and  liabilities  and 
therefore  do  not  expect  the  adoption  of  SFAS  159  to  have  any  impact  on  our  consolidated 
financial statements.

SFAS No. 141-R

In  December  2007,  the  FASB  issued  SFAS  No.  141-R,  Business  Combinations  which  revised 
SFAS  No.  141,  Business  Combinations. This  pronouncement  is  effective  for  us  beginning 
January  1,  2009.  Under  SFAS  No.  141,  organizations  utilized  the  announcement  date  as  the 
measurement  date  for  the  purchase  price  of  the  acquired  entity.  SFAS  No.  141-R  requires 
measurement at the date the acquirer obtains control of the acquiree, generally referred to as 
the  acquisition  date.  SFAS  No.  141-R  will  have  a  significant  impact  on  the  accounting  for 
transaction costs, restructuring costs as well as the initial recognition of contingent assets and 
liabilities assumed during a business combination. Under SFAS No. 141-R, adjustments to the 

84

 
 
 
 
 
acquired entity’s deferred tax assets and uncertain tax position balances occurring outside the 
measurement  period  are  recorded  as  a  component  of  the  income  tax  expense,  rather  than 
goodwill. As  the  provisions  of  SFAS  No.  141-R  are  applied  prospectively,  the  impact  to  the 
Registrants cannot be determined until the transactions occur.

3.  geogRaPHIc/cUST oMeR  conc enTRa TIo n

We have one operating segment. As of December 31, 2007, substantially all of our revenue was 
derived from a limited number of customers based outside of the United States (primarily Asia 
and  Europe). These  revenues  were  paid  in  U.S.  dollars  and  not  subject  to  any  substantial 
foreign exchange transaction risk. During 2007, 2006, and 2005, revenue from our Asian-based 
licensees  comprised  79%,  39%,  and  71%  of  total  revenues,  respectively.  For  the  same 
years,  revenue  from  our  European-based  licensees  comprised  10%,  58%,  and  14%  of  total 
revenues, respectively.

During  2007,  2006,  and  2005,  the  following  customers  accounted  for  10%  or  more  of 
total revenues:

Nokia Corporation 

LG Electronics Inc. 

NEC Corporation of Japan 

Sharp Corporation of Japan 

(a) Less than 10%

2007 

2006 

2005

(a) 

25% 

14% 

19% 

53% 

11% 

(a) 

(a) 

(a)

(a)

30%

22%

4.  SIgnIFIcanT  agReeMenTS  anD   eVenTS

Technology Solution Agreements

We account for portions of our technology solution agreements using proportional performance. 
During  2007  and  2006,  we  recognized  related  revenue  of  approximately  $1.2  million  and 
$4.5  million,  respectively,  using  proportional  performance.  Our  accounts  receivable  at 
December  31,  2007  and  2006  included  unbilled  amounts  of  $0.3  million  and  $1.7  million, 
respectively. We  expect  to  bill  and  collect  such  amounts  within  twelve  months  of  each 
respective balance sheet date.

Acquisition of Patents

In  2005,  we  acquired,  for  a  purchase  price  of  approximately  $8.1  million,  selected  patents, 
intellectual  property  blocks  and  related  assets  from  an  unrelated  third  party. These  assets  are 
designed  to  improve  the  range,  throughput  and  reliability  of  wireless  LAN  and  other  wireless 
technology  systems. The  purchase  price  was  allocated  almost  entirely  to  patent  assets  with  a 
nominal amount being allocated to other assets. Based on our assessment in connection with 
the  asset  acquisition,  we  are  amortizing  these  patents  over  their  expected  useful  lives  of 
approximately 15 years.

2005 Repositioning

In August 2005, we announced plans to close our Melbourne, Florida design facility. We ceased 
our development activity at this facility in third quarter 2005 and relocated certain development 
efforts and personnel to other Company locations. We closed the facility in fourth quarter 2005. 
On  the  date  of  the  announced  closing,  there  were  thirty-three  full  or  part-time  employees  at 
this  facility,  of  which,  five  full-time  employees  accepted  offers  of  continued  employment 
elsewhere  within  our  organization. We  estimate  the  repositioning  resulted  in  annual  pre-tax 
cost savings of approximately $6.0 million.

85

 
 
In  connection  with  the  closure,  we  recognized  repositioning  charges  totaling  approximately 
$1.5  million,  comprised  of  severance  and  relocation  costs  of  $1.0  million  and  facility  closing 
costs  of  $0.5  million. The  facility  closing  costs  include  lease  termination  costs,  fixed  asset 
writeoffs  and  costs  to  wind  down  the  facility. We  recorded  these  charges  in  2005. We  believe 
that our financial obligations associated with this repositioning are complete.

5.  P RoPeRTY  anD   eQU IPMenT

(In thousands)

December 31, 

Land 

Building and improvements 

Engineering and test equipment 

Computer equipment 

Computer software 

Furniture and fixtures 

Leasehold improvements 

Less: Accumulated depreciation 

2007 

2006

$ 

695 
6,775 
  26,982 
  19,524 
  23,888 
4,516 
3,969 

$ 

695

6,545

19,389

17,117

18,761

4,355

2,673

  86,349 
  (61,755) 

  69,535

(52,853)

$  24,594 

$  16,682

Depreciation  expense  was  $8.9  million,  $5.9  million,  and  $5.1  million  in  2007,  2006  and  2005, 
respectively.  Depreciation  expense  included  depreciation  of  computer  software  costs  of  $2.5 
million,  $1.9  million  and  $1.5  million  in  2007,  2006  and  2005,  respectively.  Accumulated 
depreciation  related  to  computer  software  costs  was  $17.5  million  and  $15.0  million  at 
December 31, 2007 and 2006, respectively.

6.  oblIga TIonS

(In thousands)

December 31, 

Credit facility 

Mortgage debt 

Capital leases 

Total long-term debt obligations 

Less: Current portion 

$ 

2007 

— 
1,203 
2,514 

3,717 
(1,311) 

2006

$ 

—

1,410

162

1,572

(369)

$  2,406 

$  1,203

In  December  2005,  we  entered  into  a  two-year  $60  million  unsecured  revolving  credit  facility 
(the  Credit Agreement). The  Credit Agreement  was  entered  into  by  the  Company,  Bank  of 
America, N.A., as Administrative Agent, and Citizens Bank of Pennsylvania. On July 2, 2007, as 
a  result  of  the  Company’s  internal  corporate  reorganization,  InterDigital  Communications 
Corporation,  the  Company,  the  Subsidiary  Guarantors  party  thereto,  the  Lenders  and  Bank  of 
America,  N.A.,  as  Administrative  Agent  and  L/C  Issuer,  entered  into  a  First  Amendment, 
Consent  and  Joinder  to  Credit Agreement. We  did  not  borrow  against  the  Credit Agreement 
during the initial two year term.

86

 
 
 
 
 
 
 
 
 
         
 
         
 
 
 
 
 
 
 
 
         
In December 2007, we entered into a Second Amendment to Credit Agreement resulting in the 
continuation  of  our  two-year  $60  million  unsecured  revolving  credit  facility  (the  Credit 
Agreement)  through  December  2009.  Under  the  Second Amendment,  borrowings  under  the 
Credit Agreement will, at the Company’s option, bear interest at either (i) LIBOR plus 65 basis 
points  or  (ii)  the  higher  of  the  prime  rate  or  50  basis  points  above  the  federal  funds  rate. The 
customary  restrictive  financial  and  operating  covenants  under  the  Credit Agreement  continue 
in  full  force  and  effect  and  include,  among  other  things,  that  the  Company  is  required  to  (i) 
maintain  certain  minimum  cash  and  short-term  investment  levels,  (ii)  maintain  minimum 
financial  performance  requirements  as  measured  by  the  Company’s  income  or  loss  before 
taxes with certain adjustments, and (iii) limit or prohibit the incurrence of certain indebtedness 
and  liens,  judgments  above  a  threshold  amount  for  which  a  reserve  is  not  maintained,  and 
certain other activities outside of the ordinary course of business. Borrowings under the Credit 
Agreement can be used for general corporate purposes including capital expenditures, working 
capital,  letters  of  credit,  certain  permitted  acquisitions  and  investments,  cash  dividends  and 
stock  repurchases.  As  of  December  31,  2007,  the  Company  did  not  have  any  amounts 
outstanding under the Credit Agreement.

During 1996, we purchased our King of Prussia, Pennsylvania facility for $3.7 million, including 
cash  of  $0.9  million  and  a  16-year  mortgage  of  $2.8  million  with  interest  payable  at  a  rate  of 
8.28% per annum.

Two capital software lease obligations are payable annually. All other capital lease obligations 
are  payable  in  monthly  installments  at  an  average  rate  of  5.96%,  through  2010. The  net  book 
value of equipment under capitalized lease obligations was $3.0 million at December 31, 2007 
and $0.1 million at December 31, 2006.

Maturities of principal of the long-term debt obligations as of December 31, 2007 are as follows 
(in thousands):

2008 

2009 

2010 

2011 

2012 

Thereafter 

$  1,359

  1,303

588

288

179

0

$ 3,717

7.  coMMITMenTS

Leases

We  have  entered  into  various  operating  lease  agreements. Total  rent  expense,  primarily  for 
office space, was $4.0 million, $3.1 million, and $3.1 million in 2007, 2006 and 2005, respectively. 
Minimum future rental payments for operating leases as of December 31, 2007 are as follows 
(in thousands):

2008 

2009 

2010 

2011 

2012 

Thereafter 

$ 2,122

  2,078

  2,078

  1,810

  1,413

0

87

 
 
 
 
   
 
8.  lITIga TIon  anD  lega l  PR oce eDIngS

Samsung and Nokia U.S. International Trade Commission Proceedings and Related Delaware 
District Court Proceedings

In  March  2007,  InterDigital,  Inc.’s  wholly-owned  subsidiaries  InterDigital  Communications,  LLC 
and  InterDigital Technology  Corporation  (collectively,  the “Company,” “InterDigital,” “we,”  or 
“our”)  filed  a  Complaint  against  Samsung  Electronics  Co.  Ltd.  and  certain  of  its  affiliates 
(collectively,  “Samsung”)  in  the  United  States  International Trade  Commission  (“USITC”) 
alleging  that  Samsung  engages  in  unfair  trade  practices  by  selling  for  importation,  importing 
into the United States, and selling after importation certain 3G handsets and components that 
infringe  three  of  InterDigital’s  patents.  In  May  2007  and  December  2007,  a  fourth  patent  and 
fifth  patent,  respectively,  were  added  to  our  Complaint  against  Samsung. The  Complaint 
against  Samsung  seeks  an  exclusion  order  barring  from  entry  into  the  U.S.  infringing  3G 
WCDMA  handsets  and  components  that  are  imported  by  or  on  behalf  of  Samsung.  Our 
Complaint  also  seeks  a  cease-and-desist  order  to  bar  sales  of  infringing  Nokia  products  that 
have already been imported into the United States.

In addition, on the same date as our filing of the Samsung USITC action referenced above, we 
also filed a Complaint in the United States District Court for the District of Delaware (“Delaware 
District  Court”)  alleging  that  Samsung’s  3G WCDMA  handsets  infringe  the  same  three 
InterDigital  patents  identified  in  the  original  Samsung  USITC  Complaint. The  U.S.  trade  laws 
provide  for  a  mandatory  stay  of  parallel  district  court  proceedings  at  the  request  of  a 
respondent.  In  June  2007,  the  Delaware  District  Court  entered  a  Stipulated  Order  staying  this 
Delaware  District  Court  proceeding  against  Samsung. The  Stipulated  Order  was  agreed  to  by 
the  parties. The  Stipulated  Order  stays  the  proceeding  until  the  USITC’s  determination  in  this 
matter  becomes  final. The  Delaware  District  Court  has  permitted  InterDigital  to  add  the  fourth 
and  fifth  asserted  patents  asserted  against  Samsung  in  the  USITC  action  to  this  stayed 
Delaware action.

In  August  2007,  we  filed  a  USITC  Complaint  against  Nokia  Corporation  and  Nokia,  Inc. 
(collectively, “Nokia”)  alleging  that  Nokia  engaged  in  an  unfair  trade  practice  by  making  for 
importation  into  the  United  States,  importing,  and  selling  after  importation  certain  3G  mobile 
handsets  and  components  that  infringe  two  of  InterDigital’s  patents.  In  November  2007  and 
December  2007,  a  third  patent  and  fourth  patent,  respectively,  were  added  to  our  Complaint 
against  Nokia. The  Complaint  against  Nokia  seeks  an  exclusion  order  barring  from  entry  into 
the U.S. infringing 3G mobile handsets and components that are imported by or on behalf of 
Nokia.  Our  Complaint  also  seeks  a  cease-and-desist  order  to  bar  further  sales  of  infringing 
Nokia products that have already been imported into the United States.

In addition, on the same date as our filing of the Nokia USITC action referenced above, we also 
filed  a  Complaint  in  the  Delaware  District  Court  alleging  that  Nokia’s  3G  mobile  handsets  and 
components  infringe  the  same  two  InterDigital  patents  identified  in  the  original  Nokia  USITC 
Complaint. This  Delaware  action  was  also  stayed  on  January  10,  2008,  pursuant  to  the 
mandatory,  statutory  stay  of  parallel  district  court  proceedings  at  the  request  of  a  respondent 
in  an  ITC  Investigation. Thus,  this  Delaware  action  is  stayed  until  the  USITC’s  determination 
in  this  matter  becomes  final. The  Delaware  District  Court  has  permitted  InterDigital  to  add 
the  third  and  fourth  patents  asserted  against  Nokia  in  the  USITC  action  to  this  stayed 
Delaware action.

Nokia, joined by Samsung, moved to consolidate the Samsung and Nokia ITC proceedings. On 
October 24, 2007, the Honorable Paul J. Luckern, the Administrative Law Judge overseeing the 
two  USITC  proceedings  against  Samsung  and  Nokia,  respectively,  issued  an  Order  to 
consolidate  the  two  pending  investigations.  Pursuant  to  the  Order,  the  schedules  for  both 
investigations  have  been  revised  to  consolidate  proceedings  and  set  a  unified  evidentiary 

88

hearing  on April  21-28,  2008,  the  filing  of  a  single  initial  determination  by  Judge  Luckern  by 
July  11,  2008,  and  a Target  Date  for  the  consolidated  investigations  of  November  12,  2008,  by 
which date the USITC should issue its final determination.

On  December  4,  2007,  Nokia  moved  for  an  order  terminating,  or  alternatively,  staying  the 
USITC investigation as to Nokia, on the ground that Nokia and InterDigital must first arbitrate a 
dispute as to whether Nokia is licensed under the patents asserted by InterDigital against Nokia 
in the USITC investigation. On January 8, 2008, Judge Luckern issued an order denying Nokia’s 
motion and holding that Nokia has waived its arbitration defense by instituting and participating 
in the Investigation and other legal proceedings. On February 13, 2008, Nokia filed an action in 
the  U.S.  District  Court  for  the  Southern  District  of  New York,  seeking  to  preliminarily  enjoin 
InterDigital  from  proceeding  with  the  USITC  action  with  respect  to  Nokia,  in  spite  of  Judge 
Luckern’s  ruling  denying  Nokia’s  motion  to  terminate  the  Investigation.  Nokia  raises  in  this 
preliminary  injunction  action  the  same  arguments  it  raised  in  its  motion  to  terminate  the  ITC 
Investigation,  namely  that  InterDigital  allegedly  must  first  arbitrate  its  dispute  with  Nokia  and 
that  Nokia  has  not  waived  this  defense. The  Court  has  scheduled  a  preliminary  injunction 
hearing for March 20, 2008.

On February 8, 2008, Nokia filed a motion for summary determination that InterDigital cannot 
show that a domestic industry exists in the United States as required to obtain relief. Samsung 
joined  this  motion.  InterDigital  has  opposed  this  motion.  On  February  14  and  26,  2008, 
InterDigital filed its own motions for summary determination regarding the domestic industry 
requirement.  No  schedule  has  been  set  by  Judge  Luckern  as  to  when  these  motions  will 
be decided.

On  February  27,  2008,  Nokia  filed  a  motion  to  extend  the Target  Date  in  the  ITC  proceeding. 
InterDigital intends to vigorously oppose this motion.

Nokia UKII Action

In July 2005, Nokia filed a claim in the English High Court of Justice, Chancery Division, Patents 
Court  (“English  High  Court”)  against  ITC  seeking  a  Declaration  that  thirty-one  of  ITC’s  UMTS 
European Patents registered in the UK are not essential IPR for the 3GPP Standard (“UKII”).

On December 21, 2007, the English High Court issued a judgment finding that European Patent 
(UK)  0,515,610  (the  ’610  patent),  owned  by  InterDigital Technology  Corporation,  is  essential  to 
the 3G UMTS WCDMA European standard promulgated by the European Telecommunications 
Standards  Institute  (ETSI)  and  that  this  patented  invention  is  infringed  by  carrying  out  the 
method  described  in  the  standard. The  ’610  patent  relates  to  open  loop  power  control,  a 
fundamental  aspect  of  3G  technology.  Foreign  counterparts  having  identical  or  similar  claim 
language to the ’610 patent have been issued in many parts of the world, including the United 
States,  Canada,  Germany,  France,  Spain,  Italy,  and  Sweden. The  judicial  determination  of 
essentiality  is  in  addition  to  Nokia’s  withdrawal  of  its  challenge  to  the  essentiality  of  another 
patent,  European  Patent  (UK)  0,515,675  relating  to  pilot  codes,  effectively  conceding  that  that 
patent is essential as well.

In the judgment, the English High Court ruled that one claim of the ’610 patent was essential. 
The English High Court ruled that a second claim of the ’610 patent, as well as three additional 
patents,  were  not  essential. A  declaration  of  non-essentiality  is  not  a  finding  that  a  particular 
third  party  product  does  not  infringe  an  InterDigital  patent,  and  no  products  were  in  issue 
in these proceedings. The judgment is subject to appeal by either party if permission to appeal 
is granted.

There will be a further hearing in April 2008 to determine the form of order to be made as well 
as any orders relating to attorneys’ fees. Pursuant to UK law, it is customary for a party winning 
a motion or the overall outcome of a case to receive reimbursement of attorneys fees from the 

89

other  party.  Depending  on  the  outcome  of  this  hearing,  this  could  result  in  a  substantial 
amount for the Company, Nokia or neither party. At December 31, 2007, we accrued $7.8 million 
for the potential reimbursement of legal fees associated with this matter.

Nokia UKIII Action

In  December  2006,  ITC  filed  a  claim  in  the  English  High  Court  against  Nokia  seeking  a 
Declaration  that  thirty-four  UMTS  European  Patents  and  one  UMTS  GB  national  patent  all 
registered in the UK and declared by Nokia to be essential IPR for the 3GPP Standard are not 
essential.  Nokia  has  since  admitted  in  the  proceedings  that  five  of  those  patents  are  not 
essential to the Standard. Since the proceedings began, an additional five of the patents have 
been  transferred  to  Nokia  Siemens  Networks  Oy,  which  has  been  joined  to  the  action  as  a 
second  defendant  and  which  has  admitted  that  one  of  the  five  patents  is  non-essential. The 
Court  has  scheduled  a  preliminary  hearing  for  no  earlier  than  June  2008  with  respect  to 
whether  the  Judge  should  exercise  his  discretion  to  issue  the  declaration  being  sought  by 
InterDigital. Trial in this action is scheduled to begin in the fourth quarter of 2008.

Nokia Delaware Proceeding

In  January  2005,  Nokia  and  Nokia,  Inc.  (collectively, “Nokia”)  filed  a  Complaint  in  the  United 
States District Court for the District of Delaware (“Delaware District Court”) against InterDigital 
Communications,  LLC  (“IDC”)  and  our  wholly-owned  subsidiary,  InterDigital Technology 
Corporation  (“ITC”)  (IDC  and  ITC  collectively  referred  to  as “InterDigital,” “we,”  or “our”), 
alleging  that  we  have  used  false  or  misleading  descriptions  or  representations  regarding  our 
patents’  scope,  validity,  and  applicability  to  products  built  to  comply  with  3G  wireless  phone 
Standards  (“Nokia  Delaware  Proceeding”). We  subsequently  filed  counterclaims  based  on 
Nokia’s licensing activities as well as Nokia’s false or misleading descriptions or representations 
regarding  Nokia’s  3G  patents  and  Nokia’s  undisclosed  funding  and  direction  of  an  allegedly 
independent study of the essentiality of 3G patents.

On  December  10,  2007,  pursuant  to  a  joint  request  by  the  parties,  the  Delaware  District  Court 
entered an Order staying the proceedings pending the full and final resolution of the Company’s 
ITC  investigation  against  Nokia  and  Samsung.  Specifically,  the  full  and  final  resolution  of  the 
ITC  investigation  includes  any  initial  or  final  determinations  of  the Administrative  Law  Judge 
overseeing  the  proceeding,  the  ITC,  and  any  appeals  therefrom.  Pursuant  to  the  Order,  the 
parties  and  their  affiliates  are  generally  prohibited  from  initiating  against  the  other  parties,  in 
any  forum,  any  claims  or  counterclaims  that  are  the  same  as  the  claims  and  counterclaims 
pending  in  the  Nokia  Delaware  Proceeding,  and  should  any  of  the  same  or  similar  claims  or 
counterclaims be initiated by a party, the other parties may seek dissolution of the stay.

The  Order  does  not  affect  any  of  the  other  legal  proceedings  between  the  parties  including 
the  current  ITC  Investigation  involving  InterDigital,  Nokia  and  Samsung,  or  the  parallel 
Delaware  District  Court  proceedings  also  brought  by  InterDigital  against  Nokia  and 
Samsung individually.

Nokia ICC Arbitration

In  November  2006,  we  filed  a  Request  for Arbitration  with  the  ICC  against  Nokia  (“Nokia  ICC 
Proceeding”), claiming that certain presentations Nokia has attempted to use in support of its 
claims in the Nokia Delaware Proceeding are confidential and, as a result, may not be used in 
the Nokia Delaware Proceeding pursuant to the parties’ agreement.

The  December  10,  2007,  Order  entered  by  the  Delaware  District  Court  to  stay  the  Nokia 
Delaware  Proceeding  described  above,  also  stayed  the  Nokia  ICC  Proceeding  pending  the  full 
and final resolution of the ITC Investigation against Nokia and Samsung as described above.

90

Samsung Delaware Proceeding

In March 2007, Samsung Telecommunications America LLP (“Samsung Telecom”) and Samsung 
Electronics Co., Ltd. (“Samsung Electronics”) filed an action against InterDigital Communications 
Corporation  (now  “InterDigital  Communications,  LLC”),  ITC  and  another  affiliate, Tantivy 
Communications, Inc. (collectively, “InterDigital,” “we,” or “our”), in the Delaware District Court, 
alleging  that  InterDigital  has  refused  to  comply  with  its  alleged  contractual  obligations  to  be 
prepared  to  license our patents  on fair, reasonable, and non-discriminatory (“FRAND”) terms, 
and  that  InterDigital  has  allegedly  engaged  in  unfair  business  practices.  By  their  original 
Complaint in the action, the Samsung entities sought damages and declaratory relief, including 
declarations  that:  (i)  InterDigital’s  patents  and  patent  applications  allegedly  promoted  to 
standards  bodies  are  unenforceable;  (ii)  the  Samsung  entities  have  a  right  to  practice 
InterDigital’s  intellectual  property  as  a  result  of  an  alleged  license  from  QUALCOMM 
Incorporated;  (iii)  nine  specified  InterDigital  patents  are  invalid  and/or  not  infringed  by 
the  Samsung  entities;  and  (iv)  InterDigital  must  offer  the  Samsung  entities  a  license  on 
FRAND terms.

In  September  2007,  Samsung  Electronics  filed  a  First  Amended  Complaint  (“Amended 
Complaint”) in its proceeding in the Delaware District Court against InterDigital. The Amended 
Complaint includes Samsung’s originally-pled claims concerning InterDigital’s alleged behavior 
with respect to standards bodies and licensing practices, but omits all of Samsung’s previously 
asserted  claims  for  declaratory  judgment  that  nine  specified  InterDigital  patents  are  invalid 
and/or not infringed. The Amended Complaint was filed only on behalf of Samsung Electronics 
and, unlike the original Complaint, does not identify Samsung Telecom as a co-plaintiff.

InterDigital  intends  to  vigorously  defend  itself  against  Samsung’s  allegations  in  this  matter.  In 
November  2007,  InterDigital  filed  its Answer  to  the Amended  Complaint,  disputing  Samsung’s 
allegations and asserting counterclaims of infringement of two InterDigital patents. InterDigital 
simultaneously  filed  a  partial  motion  to  dismiss  Samsung’s  claim  alleging  violation  of 
California’s  Unfair  Competition  Law.  No  ruling  has  been  made  on  InterDigital’s  motion  to 
dismiss,  and  no  scheduling  order  has  been  issued  in  the  case. The  Court  has  not  yet  set  this 
matter for an initial Case Management Conference, and discovery has not yet begun.

Samsung 2nd Arbitration and Related Confirmation Proceeding

In  August  2006,  an  arbitral  tribunal  (“Tribunal”)  operating  under  the  auspices  of  the 
International  Court  of Arbitration  of  the  International  Chamber  of  Commerce  issued  a  final 
award  (“Award”)  in  an  arbitration  proceeding  between  InterDigital  Communications,  LLC  and 
InterDigital Technology Corporation (collectively, “InterDigital”), and Samsung Electronics. In its 
Award, the Tribunal ordered Samsung Electronics to pay to InterDigital, pursuant to the parties’ 
1996  patent  license  agreement  (“Samsung Agreement”),  approximately  $134  million  in  past 
royalties plus interest on Samsung’s sale of single mode 2G GSM/TDMA and 2.5G GSM/GPRS/
EDGE terminal units through 2005 (“Award”). The Tribunal also established the royalty rates to 
be applied to Samsung’s sales of covered products in 2006.

In September 2006, InterDigital filed an action seeking to enforce the arbitral Award in the U.S. 
District Court for the Southern District of New York (the “Enforcement Action”). Subsequent to 
that  filing,  in  September  2006  Samsung  Electronics  filed  an  opposition  to  the  enforcement 
action,  including  filing  a  cross-petition  to  vacate  or  modify  the Award  and  to  stay  the Award. 
Oral arguments were held in November 2007.

On  December  10,  2007,  the  Honorable  Richard  J.  Sullivan,  the  Judge  who  is  currently 
overseeing  the  Enforcement  Action,  confirmed  the  Award  in  its  entirety  and  directed  that 
Samsung  pay  InterDigital  $150.25  million  comprised  of  $134  million  in  royalties  plus  interest 
less an approximate $6 million prepayment credit for sales of 2G terminal units through 2005, 

91

plus  pre-judgment  interest  calculated  at  a  rate  of  5%  per  annum. The  Order  of  Judgment 
denied  all  of  Samsung’s  petitions  and  motions  and  does  not  include  a  specified  amount  for 
royalties owed for 2006 under the arbitration award.

On  December  18,  2007,  Samsung  filed  an  appeal  with  the  United  States  Court  of Appeals  for 
the Second Circuit and posted an appeal bond, in the amount of approximately $166.7 million, 
with the New York District Court. By posting the appeal bond, Samsung has stayed execution of 
the Order of Judgment pending the appeal. Under the current schedule, oral argument before 
the Second Circuit Court of Appeals will take place no earlier than the week of May 26, 2008.

On  February  25,  2008,  Samsung  filed  a  motion  to  stay  their  appeal,  and  vacate  the  current 
briefing schedule, pending the outcome of the Samsung 3rd Arbitration (described below). The 
Company intends to oppose Samsung’s motion.

Samsung 3rd Arbitration

In October 2006, Samsung Electronics filed a request for a new ICC arbitration proceeding (the 
“Samsung  3rd Arbitration”)  relating  to  the  ongoing  patent  royalty  dispute  between  Samsung 
and  InterDigital.  In  the  Samsung  3rd Arbitration,  Samsung  Electronics  seeks  to  have  a  new 
arbitration panel determine new royalty rates for Samsung’s 2G/2.5G GSM/GPRS/EDGE product 
sales  based  on  the  April  2006  Nokia  Settlement,  which  implemented  a  June  2005  Nokia 
arbitration Award.  Samsung  has  purported  to  have  elected  the  Nokia  Settlement  under  the 
most  favored  licensee  (“MFL”)  clause  in  the  Samsung Agreement.  Samsung  contends  that  it 
has  the  right  to  have  a  new  rate,  based  on  the  Nokia  Settlement,  applied  to  its  sales  in  the 
period from January 1, 2002 through December 31, 2006 in lieu of the royalty rates that have 
been determined by the Tribunal in the Samsung 2nd Arbitration for that period. In addition to 
seeking  relief  based  on  the  Nokia  Settlement,  Samsung  has  expressly  reserved  a  purported 
right to make an MFL election of another specified license agreement between InterDigital and 
a  third  party,  and  to  add  claims  relating  to  that  agreement.  In  the  Samsung  3rd Arbitration 
proceeding,  we  have  denied  that  Samsung  is  entitled  to  receive  any  new  royalty  rate 
adjustment  based  on  the  Nokia  Settlement  or  the  specified  third  party  license  agreement. 
We  have  also  counterclaimed,  seeking  an  Award  of  the  royalties  Samsung  owes  for  its 
2G/2.5G  sales  in  2006  at  the  royalty  rate  specified  in  the August  2006 Award  in  the  Samsung 
2nd Arbitration.

In February 2008, the Tribunal heard oral argument on the issue of whether Samsung is entitled 
to elect the Nokia Settlement. The Tribunal has not indicated when it will render a decision on 
this issue. The parties will need to present evidence and/or argument in a further phase of this 
arbitration  on  the  amount  of  royalties  Samsung  owes  for  its  2G/2.5G  sales  in  2006,  and, 
depending  on  the Tribunal’s  decision  as  to  whether  Samsung  is  entitled  to  elect  the  Nokia 
Settlement, possibly for earlier periods of time.

Other

We  have  filed  patent  applications  in  the  United  States  and  in  numerous  foreign  countries.  In 
the ordinary course of business, we currently are, and expect from time-to-time to be, subject 
to  challenges  with  respect  to  the  validity  of  our  patents  and  with  respect  to  our  patent 
applications. We intend to continue to vigorously defend the validity of our patents and defend 
against any such challenges. However, if certain key patents are revoked or patent applications 
are denied, our patent licensing opportunities could be materially and adversely affected.

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We  and  our  licensees,  in  the  normal  course  of  business,  may  have  disagreements  as  to  the 
rights  and  obligations  of  the  parties  under  the  applicable  patent  license  agreement.  For 
example, we could have a disagreement with a licensee as to the amount of reported sales of 
covered  products  and  royalties  owed.  Our  patent  license  agreements  typically  provide  for 
arbitration  as  the  mechanism  for  resolving  disputes. Arbitration  proceedings  can  be  resolved 
through  an  award  rendered  by  an  arbitration  panel  or  through  private  settlement  between 
the parties.

In  addition  to  disputes  associated  with  enforcement  and  licensing  activities  regarding  our 
intellectual property, including the litigation and other proceedings described above, we are a 
party to other disputes and legal actions not related to our intellectual property, but also arising 
in the ordinary course of our business, including claims by us for insurance coverage involving 
the Nokia Delaware Proceeding. Based upon information presently available to us, we believe 
that  the  ultimate  outcome  of  these  other  disputes  and  legal  actions  will  not  have  a  material 
adverse affect on us.

Among the types of legal proceedings we encounter in the normal course of business, we are 
engaged in the following action:

Federal

In May 2007, the Arbitrator in the arbitration proceeding between InterDigital Communications 
Corporation (now “InterDigital Communications, LLC”) and InterDigital Technology Corporation 
(collectively, “InterDigital,” “we,”  or “our”)  and  Federal  Insurance  Company  (“Federal”),  and 
relating to a Litigation Expense and Reimbursement Agreement signed in February 2000 by the 
parties  (“Reimbursement Agreement”),  refused  to  award  the  full  amount  of  Federal’s  claim 
which was in excess of $33 million. The Arbitrator did award Federal approximately $13 million, 
pursuant  to  a  formula  set  forth  in  the  Reimbursement  Agreement,  for  reimbursement  of 
attorneys’  fees  and  expenses  previously  paid  to  or  on  behalf  of  InterDigital  by  Federal,  plus 
approximately  $2  million  in  interest.  As  additional  reimbursement  of  attorneys’  fees  and 
expenses,  the Arbitrator  awarded  $5  million,  without  interest,  as  Federal’s  share  under  the 
Reimbursement Agreement  of “additional  value”  of  the  2003  settlement  between  InterDigital 
and  Ericsson  Inc.  Further,  the Arbitrator  ruled  that  InterDigital  must  pay  Federal  10%  of  any 
additional payments InterDigital may receive as a result of an audit of Sony Ericsson’s sales. In 
June 2007, we notified Federal that we had received $2 million from Sony Ericsson to resolve 
Sony Ericsson’s payment obligations following an audit. The approximately $13 million portion 
of  the Award  represents  a  percentage  of  the  amounts  InterDigital  has  received  since  March 
2003  from Telefonaktiebolaget  LM  Ericsson  and  Ericsson  Inc.,  and  Sony  Ericsson  Mobile 
Communications AB under their respective patent license agreements.

In  June  2007,  Federal  moved  to  confirm  the Award  in  the  United  States  District  Court  for  the 
Eastern District of Pennsylvania. Also in June 2007, we filed an opposition to Federal’s motion 
to confirm the arbitration Award and a cross motion to vacate a portion of the Award, totaling 
approximately  $14.5  million,  on  the  ground  that  the Arbitrator  exceeded  the  scope  of  her 
authority. We also moved the Court to stay confirmation of the Award pending adjudication of 
our  recoupment  defense  whereby  we  are  seeking  to  recoup  the  full  amount  of  the Award 
based  on  Federal’s  bad  faith  breach  of  its  contractual  and  fiduciary  duties  to  us.  In  July  2007, 
the  Court  heard  oral  arguments  on  Federal’s  motion  to  confirm  the Award,  our  opposition 
thereto, our cross motion to vacate the Award, and to stay confirmation pending adjudication 
of our recoupment defense. The Court has not yet ruled on these pending motions.

93

At  the  time  of  judgment  we  recorded  an  expense  of  approximately  $16.6  million  which 
represents  the  total  amount  of  the Award  through  third  quarter  2007,  less  the  amount  of  a 
previously accrued liability of $3.4 million. We have also accrued post judgment interest of $0.7 
million  and  reported  such  interest  expense  within  the “Interest  and  other  income,  net”  line 
item of our Statement of Income.

9.  Re la TeD  P aRT Y TRanS acTIonS

One of our outside directors is Chairman of the Advisory Board to a firm that provides us with 
consulting  services. We  paid  $0.3  million  to  this  firm  for  their  services  in  2007  and  we  paid 
them less than $0.1 million, in each of 2006 and 2005. Our board member did not receive any 
direct compensation or commissions related to these engagements.

10.  coMPenS aTIon  Pla nS  anD  PR ogRaMS

Common Stock Compensation Plans

We  have  stock-based  compensation  plans  under  which,  depending  on  the  plan,  directors, 
employees,  consultants  and  advisors  can  receive  share-based  awards  such  as,  stock  options, 
stock  appreciation  rights,  restricted  stock  awards  and  other  stock  unit  awards.  We 
issue  the  share-based  awards  authorized  under  these  plans  through  a  variety  of 
compensation programs.

Common Stock Option Plans

We  have  granted  options  under  two  incentive  stock  option  plans,  three  non-qualified  stock 
option plans and two plans which provide for grants of both incentive and non-qualified stock 
options (Pre-existing Plans) to non-employee directors, officers and employees of the Company 
and  other  specified  groups,  depending  on  the  plan.  No  further  grants  are  allowed  under  the 
Pre-existing  Plans.  In  2000,  our  shareholders  approved  the  2000  Stock Award  and  Incentive 
Plan (2000 Plan) that allows for the granting of incentive and non-qualified options, as well as 
other securities. The 2000 Plan authorizes the offer and sale of up to approximately 6.9 million 
shares  of  common  stock. The  Board  of  Directors  or  the  Compensation  Committee  of  the 
Board determine the number of options to be granted. Under the terms of the 2000 Plan, the 
option price cannot be less than 100% of the fair market value of the common stock at the date 
of grant.

In 2002, the Board of Directors approved the 2002 Stock Award and Incentive Plan (2002 Plan) 
that allows for the granting of incentive and non-qualified options, as well as other securities, 
to Company employees who are not subject to the reporting requirements of Section 16 of the 
Securities Act of 1934 or an “affiliate” for purposes of Rule 144 of the Securities Act of 1933. The 
2002 Plan authorizes the offer and sale of up to 1.5 million shares of common stock. The Board 
of Directors or the Compensation Committee of the Board determine the number of options to 
be granted. Under all of these plans, options are generally exercisable for a period of 10 years 
from the date of grant and may vest on the grant date, another specified date or over a period 
of time. However, under plans that provide for both incentive and non-qualified stock options, 
grants most commonly vest in six semi-annual installments.

94

Information  with  respect  to  current  year  stock  options  activity  under  the  above  plans  is 
summarized as follows (in thousands, except per share amounts):

Outstanding Options

Number 

Price Range 

  Weighted 
Average 
Exercise 
Price

Available 
For Grant 

Balance at December 31, 2006 

  934 

  4,526 

$   0.01–39.00 

Canceled 

Exercised 

Balance at December 31, 2007 

32 

  — 

  966 

(32) 

  39.00–39.00 

(737) 

5.19–25.73 

$  15.41

  39.00

8.77

  3,757 

$  0.01–39.00 

$  16.51

The  following  table  summarizes  information  regarding  the  stock  options  outstanding  at 
December 31, 2007 (in thousands, except for per share amounts):

Range of 
  Exercise Prices 

  $ 

  $ 

  $ 

  $ 

  $ 

0.01 – 5.81 

6.00 – 9.00 

9.03 – 9.60 

 9.77 – 11.63 

11.64 – 13.19 

  $  13.25 – 17.13 

  $  17.26 – 23.97 

  $  24.00 – 31.81 

  $  34.13 – 34.13 

  $  39.00 – 39.00 

  $ 

0.01 – 39.00 

Number 
  Outstanding and 
Exercisable 

Weighted 
Average 
Remaining 
Contractual 
Life (Years)* 

Weighted 
Average 
Exercise 
Price

  418 

301 

  446 

  455 

510 

  418 

  390 

  312 

13 

  494 

  3,757 

3.10 

11.42 

3.81 

12.66 

3.43 

3.76 

5.18 

3.77 

2.18 

2.02 

5.26 

$  4.84

  7.67

  9.59

  10.84

  12.48

  15.79

  19.88

  25.85

  34.13

  39.00

$ 16.51

* We currently have approximately 227,000 options outstanding that have an indefinite contractual life. These options were granted between 
1983 and 1986 under a pre-existing plan. For purposes of this table these options were assigned an original life in excess of 50 years. The 
majority of these options have an exercise price of between $9.77 and $11.63.

The  total  intrinsic  value  of  stock  options  exercised  during  the  year  ended  December  31,  2007, 
2006 and 2005 was $14.2 million, $59.4 million and $4.6 million, respectively. The total intrinsic 
value of our options outstanding at December 31, 2007 was $34.3 million. In 2007, we recorded 
cash  received  from  the  exercise  of  options  of  $6.5  million  and  tax  benefits  of  $5.0  million. 
Upon option exercise, we issued new shares of stock.

At  December  31,  2007  and  2006,  we  had  approximately  2.9  million  and  4.0  million  options 
outstanding, respectively, that had exercise prices less than the fair market value of our stock 
at  each  balance  sheet  date. These  options  would  generate  $33.1  million  and  $48.8  million  of 
cash proceeds to the Company if they were fully exercised.

95

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Restricted Stock

Under our 1999 Restricted Stock Plan, as amended (1999 Plan), we may issue up to 3.5 million 
shares  of  restricted  common  stock  and  restricted  stock  units  (RSUs)  to  directors,  employees, 
consultants  and  advisors. The  restrictions  on  issued  shares  lapse  over  periods  generally 
ranging  from  1  to  5  years  from  the  date  of  the  grant. As  of  December  31,  2007  and  2006,  we 
had  issued  approximately  2.9  million  and  2.3  million  shares,  respectively,  of  restricted  stock 
and  RSUs  under  the  1999  Plan. The  related  compensation  expense  is  amortized  over  vesting 
periods  that  are  generally  from  1  to  5  years.  At  December  31,  2007  and  2006,  we  had 
unrecognized  compensation  cost  related  to  share-based  awards  of  $5.6  million  and 
$4.2  million,  respectively. We  expect  to  amortize  the  unrecognized  compensation  cost  at 
December  31,  2007  over  a  weighted  average  period  of  less  than  one  year  using  an 
accelerated method.

We  grant  RSUs  as  an  element  of  compensation  to  all  of  our  employees. These  awards  vest 
over three years according to the following schedules:

Employees below manager level 

Managers and technical equivalents 

Senior officers 

Year 1 

Year 2 

Year 3

33% 

25% 

0% 

33% 

25% 

0% 

34%

50%

100%

Information  with  respect  to  current  and  prior  year  RSU  activity  under  the  above  plan  is 
summarized as follows (in thousands, except per share amounts):

Balance at December 31, 2005 

Granted* 

Forfeited 

Vested 

Balance at December 31, 2006 

Granted** 

Forfeited 

Vested 

Balance at December 31, 2007 

Number of 
Unvested 

Weighted 
Average 
Grant Date 

RSUs 

Fair Value

814 

209 

(32) 

(365) 

626 

684 

(49) 

(192) 

  1,069 

$  20.00

  20.41

  20.07

19.10

  20.66

  33.06

30.11

  20.52

$  28.19

 *    The numbers of RSUs presented as issued and cancelled in this table do not reflect the impact of a third quarter exchange of 56,000 

time-based RSUs for an equal number of performance-based RSUs.

**   The number of RSUs presented as issued includes 0.4 million performance RSUs which may be satisfied with between 0 and 0.4 million 
shares of common stock on January 1, 2010, depending upon the company’s performance against operating measures between the grant 
and end date for RSU Cycle 3.

The total vest date fair value of our RSUs that vested during each of 2007, 2006 and 2005 was 
$6.4 million, $7.0 million and $6.0 million, respectively.

Compensation Programs

We use a variety of compensation programs to attract and retain employees, as well as more 
closely  align  employee  compensation  with  Company  performance. These  programs  include 
both  cash  components  and  share-based  components. We  issue  new  shares  of  our  common 
stock to satisfy our obligations under the share-based components of these programs from the 

96

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Common  Stock  and  Restricted  Stock  Plans  discussed  above.  However,  our  board  of  directors 
has  the  right  to  authorize  the  issuance  of  treasury  shares  to  satisfy  such  obligations  in 
the future.

We  recognized  $3.9  million,  $3.5  million  and  $6.5  million  of  compensation  expense  in  2007, 
2006  and  2005,  respectively,  related  to  a  performance-based  cash  incentive  under  our  LTCP, 
discussed  below. We  also  recognized  share-based  compensation  expense  of  $9.8  million,  $7.0 
million  and  $9.8  million  in  2007,  2006  and  2005,  respectively. The  majority  of  the  share-based 
compensation  expense,  for  all  years,  related  to  RSU  awards  granted  to  managers  under  our 
LTCP. In 2006, share-based compensation expense also included a non-recurring charge of $1.0 
million to correct our accounting related to share-based grants awarded to two non-employee, 
non-director  consultants  in  1998. We  previously  accounted  for  these  non-employee  grants 
similarly to share-based employee grants, using the intrinsic value method. The charge reflects 
the  incremental  cost  that  would  have  been  recognized  by  correctly  treating  these  grants  as 
non-employee grants using the fair value method. The balance of the share-based compensation 
expense relates to the programs described below.

LTCP

The LTCP applies to all management personnel and includes a time-based RSU component, a 
performance-based RSU component and a performance-based cash incentive component. The 
LTCP was originally designed as three year cycles that overlap by one year. However, the first 
cycle under the program covered the period from April 1, 2004 through January 1, 2006 (Cycle 
1). The  second  cycle  originally  covered  the  period  from  January  1,  2005  through  January  1, 
2008 (Cycle 2). In second quarter 2005, the Compensation Committee of our Board of Directors 
amended  the  LTCP  to  revise  the  performance-based  cash  award  portion  of  Cycle  2  to  cover  a 
3-1/2  year  period  from  July  1,  2005  through  January  1,  2009  (Cycle  2a),  and  authorized  a 
pro-rated  interim  payment,  of  approximately  $0.9  million,  related  to  first  half  2005. The  third 
RSU cycle (RSU Cycle 3) began on January 1, 2007 and runs through January 1, 2010. The third 
performance-based  cash  award  cycle  (Cash  Cycle  3)  began  on  January  1,  2008  and  runs 
through January 1, 2011.

During 2006, fourteen members of our senior management voluntarily exchanged approximately 
56,000 Cycle 2 time-based RSUs for an equal number of Cycle 2 performance-based RSUs. The 
Company  ultimately  satisfied  these  performance-based  RSUs  in  early  2008  through  the 
issuance  of  approximately  11,000  shares,  based  upon  senior  management’s  performance 
against  specified  goals.  During  2006,  the  LTCP  was  amended  such  that,  beginning  with  the 
January  1,  2007  grant,  executives  now  receive  50%  of  their  RSU  grant  as  performance-based 
RSUs  and  50%  as  time-based.  Under  the  amendment  the  Company’s  managers  now  receive 
25% of their RSU grant as performance-based RSUs and 75% as time-based.

Other RSU Grants

We  also  grant  RSUs  to  all  non-management  employees,  all  non-employee  board  members 
and, in special circumstances, management personnel outside of the LTCP. Grants of this type 
awarded to management personnel are in addition to any grants awarded through the LTCP.

401(k) and Profit Sharing

We  have  a  401(k)  plan  wherein  employees  can  elect  to  defer  compensation  based  on  federal 
limits. The  Company  matches  a  portion  of  employee  contributions.  At  its  discretion,  the 
Company  may  also make  a  profit sharing contribution to its employees’ 401(k) plans. In  2007, 
2006  and  2005,  we  issued  13,963,  24,084  and  32,632  shares  of  common  stock  to  satisfy  our 
accrued obligations from the prior years of $0.5 million, $0.5 million and $0.6 million related to 
our  profit  sharing  contribution  to  eligible  employees  under  our  Savings  and  Protection  Plan 
(Savings Plan).

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Annual Bonus

We have a performance-based annual bonus plan that is applicable to all employees. Executive 
officers and other key management personnel may be paid up to 30% of their bonus in shares 
of  restricted  stock. These  shares  are  restricted  as  to  their  transferability  for  a  two  year  period 
but are not forfeitable. The shares have full voting power and have a right to receive dividends. 
We  issued  11,765,  17,000  and  29,000  shares  of  restricted  stock  in  2007,  2006  and  2005, 
respectively, to satisfy our accrued obligations from the prior years of $0.4 million, $0.4 million 
and $0.5 million under the restricted stock portion of the annual bonus.

11.  S HaReH olDeR  RIgHTS  Plan

In December 1996, our Board of Directors (Board) declared a distribution under our Shareholder 
Rights  Plan  (Rights  Plan)  of  one  Right  (as  defined  in  the  Rights  Plan)  for  each  outstanding 
common  share  of  the  Company  to  shareholders  of  record  as  of  the  close  of  business  on 
January  3,  1997.  In  addition,  all  new  common  shares  issued  after  January  3,  1997  are 
accompanied  by  one  Right  for  each  common  share  issued.  On  December  15,  2006,  the 
Company  entered  into  the  Amended  and  Restated  Rights  Agreement  (the  “Amended 
Agreement”)  dated  as  of  December  15,  2006,  between  the  Company  and  American  Stock 
Transfer  and Trust  Company  as  Rights Agent  (“Rights Agent”),  amending  and  restating  the 
Rights Plan.

In addition to continuing the provisions of the Rights Plan as previously in effect, the Amended 
Agreement  (i)  implemented  a  regular  evaluation  thereof  by  a  committee  composed  of  non-
management  members  of  the  Board  who  have  been  determined  by  the  Board  to  be 
“independent  directors”,  (ii)  extended  the  term  of  the  Rights  Plan  to  December  15,  2016,  (iii) 
simplified  the  determination  of  the  Stock  Acquisition  Date  under  the  Amended  Plan,  (iv) 
changed  the “Purchase  Price”  (as  defined  in  the Amended Agreement)  from  $250  to  $200,  (v) 
changed the redemption price of a Right from $.01 to $.001, and (vi) made certain other minor 
or  conforming  changes  and  other  changes  to  reflect  current  requirements  under  the  federal 
securities laws.

Pursuant to the Rights Plan, as amended and restated by the Amended Agreement, each Right 
entitles  shareholders  to  buy  one-thousandth  of  a  share  of  Series  B  Junior  Participating 
Preferred Stock (Preferred Stock) at the Purchase Price of $200 per 1/1000th of a share, subject 
to adjustment. Ordinarily, the Rights will not be exercisable until (i) 10 business days after the 
earliest of any of the following events (A) a person, entity or group other than certain categories 
of  shareholders  exempted  under  the  Rights  Plan  (collectively,  a  Person),  acquires  beneficial 
ownership  of  10%  or  more  of  the  Company’s  outstanding  common  shares,  or  (B)  a  Person 
publicly commences a tender or exchange offer for 10% or more of the Company’s outstanding 
common  shares,  or  (C)  a  Person  publicly  announces  an  intention  to  acquire  control  over  the 
Company  and  proposes  to  elect  through  a  proxy  or  consent  solicitation  such  a  number  of 
directors, who if elected, would outnumber the Independent Directors (as defined in the Rights 
Plan) on the Board, or (ii) such later date as may be determined by action of a majority of the 
Independent  Directors  prior  to  the  occurrence  of  any  event  specified  in  (i)  above  (Distribution 
Date). In general, following the Distribution Date and in the event that the Company enters into 
a merger or other business combination with an Acquiring Person (as such term is defined in 
the Rights Plan) and the Company is the surviving entity, each holder of a Right will have the 
right to receive, upon exercise, units of Preferred Stock (or, in certain circumstances, Company 
common  shares,  cash,  property,  or  other  securities  of  the  Company)  having  a  value  equal  to 
twice the exercise price of the Right, or if the Company is acquired in such a merger or other 
business  combination,  each  holder  of  a  Right  will  have  the  right  to  receive  stock  of  the 

98

acquiring  entity  having  a  value  equal  to  twice  the  exercise  price  of  the  Right. The  Company 
reserves the right to redeem the Rights by majority action of its Independent Directors at any 
time prior to the date such Rights become exercisable.

12. TaXeS

Our  income  tax  (benefit)  provision  consists  of  the  following  components  for  2007,  2006  and 
2005 (in thousands):

Year Ended December 31, 

2007 

2006 

2005

Current

Federal 

Alternative Minimum Tax (AMT) 

Foreign income tax 

Foreign source withholding tax 

Deferred

Federal 

Foreign source withholding tax 

Reversal of valuation allowance 

Total 

$  4,797 
— 

— 
  15,832 

  20,629 

$  39,354 

$  2,343

— 

— 

  28,488 

350

170

—

67,842 

2,863

(2,448) 
(6,182) 
— 

  61,131 

(4,584) 

6,938

2,136

— 

(46,371)

(8,630) 

  56,547 

(37,297)

$  11,999 

$ 124,389 

$  (34,434)

The  deferred  tax  assets  and  liabilities  are  comprised  of  the  following  components  at 
December 31, 2007 and 2006 (in thousands):

2007 

Net operating losses 

Deferred revenue, net 

Foreign tax credits 

Stock compensation 

Patent amortization 

Depreciation 

Other accrued liabilities 

Other employee benefits 

Less: valuation allowance 

Net deferred tax asset 

2006 

Net operating losses 

Deferred revenue, net 

Foreign tax credits 

Stock compensation 

Patent amortization 

Depreciation 

Other accrued liabilities 

Other employee benefits 

Less: valuation allowance 

Net deferred tax asset 

Federal 

State 

Foreign 

Total

$ 

— 

$  38,274 

$ 

— 

$  38,274

  13,825 
— 

8,973 

4,912 

2,111 

  13,808 
827 

  44,456 
— 

— 
— 

1,343 

735 

316 

1,665 
123 

14,112 
— 

— 

— 

— 

— 
— 

27,937
—

10,316

5,647

2,427

  15,473
950

  42,456 

14,112 

  101,024

(42,456) 

— 

(42,456)

$  44,456 

$ 

— 

$  14,112 

$  58,568

Federal 

State 

Foreign 

Total

$  1,139 

$  28,408 

— 

$  29,547

  10,803 

  15,700 

5,172 

4,016 

1,680 

2,668 

830 

— 

— 

922 

716 

300 

475 

148 

7,930 

  18,733

— 

— 

— 

— 

— 

— 

  15,700

6,094

4,732

1,980

3,143

978

  42,008 

  30,969 

7,930 

  80,907

— 

(30,969) 

— 

(30,969)

$  42,008 

$ 

— 

$ 

7,930 

$  49,938

99

 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
The following is a reconciliation of income taxes at the federal statutory rate with income taxes 
recorded  by  the  Company  for  the  years  ended  December  31,  2007,  2006  and  2005 
(in thousands):

Year Ended December 31, 

Tax at U.S. statutory rate 

Foreign withholding tax, with no U.S. foreign tax credit 

State tax provision 

Change in federal and state valuation allowance 

Adjustment to tax credits 

Other 

Tax provision before adjustments related to  
  federal deferred tax asset valuation 

Reversal of federal valuation allowance 

Change in effective rate applied to federal  
  deferred tax assets 

Other adjustments to deferred tax assets 

Total adjustments related to federal deferred  
  tax asset valuation 

2007 

2006 

2005

$  11,201 
 — 
— 
 — 
 728 
 70 

$  122,358  

$ 

7,088

2,228 

1,388

— 

— 

(910) 

713 

—

—

626

173

  11,999 

  124,389 

9,275

— 

— 
 —  

—  

— 

(46,371)

— 

—  

(1,438)

4,100

—  

   (43,709)

Total tax provision (benefit) 

$  11,999 

$  124,389  

$  (34,434)

In  2006  we  utilized  our  federal  NOL  carryforwards  and  began  to  pay  U.S.  Federal  Income Tax. 
We continue to pay foreign source withholding taxes on patent license royalties and state taxes 
when applicable. However, we now apply foreign source withholding tax payments against our 
U.S.  Federal  Income Tax  obligations  to  the  extent  we  have  foreign  source  income  to  support 
these  credits.  In  2007  and  2006,  we  paid  $15.8  million  and  $28.5  million  in  foreign  source 
withholding taxes, respectively, and applied these payments as credits against our U.S. Federal 
Tax  Obligation. At  both  December  31,  2007  and  2006,  we  accrued  $15.7  million  of  foreign 
source  withholding  taxes  payable  associated  with  expected  royalty  payments  from  a  licensee 
and recorded corresponding deferred tax assets related to the expected foreign tax credits that 
will  result  from  these  payments.  In  the  course  of  future  tax  planning,  should  we  identify  tax 
saving opportunities that entail amending prior year returns in order to fully avail ourselves of 
foreign  tax  credits  that  we  previously  considered  unavailable  to  us,  we  will  recognize  the 
benefit of the credits in the period in which they are both identified and quantified.

Generally  accepted  accounting  principles  require  that  we  establish  a  valuation  allowance  for 
any portion of our deferred tax assets for which management believes it is more likely than not 
that  we  will  be  unable  to  utilize  the  asset  to  offset  future  taxes. At  December  31,  2003,  we 
provided a full valuation allowance on all deferred tax assets other than those associated with 
revenue that was recognized in the computation of our foreign source withholding tax liability, 
but  deferred  for  financial  statement  purposes.  In  2004,  we  determined  that  our  operating 
performance, coupled with our expectations to generate future taxable income, indicated that it 
was more likely than not that we would utilize a portion of our deferred tax assets. Accordingly, 
in  third  quarter  2004,  we  recognized  an  increase  in  the  value  of  our  deferred  tax  assets  of 
approximately  $27  million  through  a  partial  reversal  of  the  valuation  allowance.  Of  the  $27 
million  benefit,  approximately  $17  million  was  recognized  as  income  in  our  Statement  of 
Operations and approximately $10 million was credited directly to additional paid-in capital. In 
2005, we determined that our expectations to generate future taxable income indicated that it 
was  more  likely  than  not  that  we  would  utilize  our  remaining  Federal  deferred  tax  assets. 

10 0

 
  
 
 
  
 
 
  
 
 
  
 
  
  
  
 
 
 
 
 
  
  
  
  
  
  
 
  
Accordingly,  in  fourth  quarter  2005,  we  reversed  our  remaining  Federal  deferred  tax  asset 
valuation allowance of approximately $66.7 million. Of the $66.7 million benefit, approximately 
$46.4  million  was  recognized  as  income  in  our  Statement  of  Operations  and  approximately 
$20.3  million  was  credited  directly  to  additional  paid-in  capital.  In  addition,  at  the  same  time, 
we increased the value of our deferred tax assets by $2.4 million as a result of a 1% change in 
the  estimated  tax  rate  we  expect  will  apply  when  these  deferred  tax  assets  reverse  in  future 
years. Of the $2.4 million benefit, approximately $1.4 million was recognized as income in our 
Statement  of  Operations  and  approximately  $1.0  million  was  credited  directly  to  additional 
paid-in  capital. These  tax  benefits  are  partly  offset  by  a  $4.1  million  adjustment  to  reduce  the 
recorded  value  of  credits  associated  with  federal  NOL  carryforwards  and  research  and 
development activities based on our assessment of the likelihood of realizing such credits.

In 2005, we completed a study of our state net operating losses. As a result of that study, we 
adjusted  our  gross  deferred  tax  asset  associated  with  state  net  operating  losses  by 
approximately  $13.5  million.  However,  we  believe  it  is  more  likely  than  not  that  our  state 
deferred  tax  assets  will  not  be  utilized  and  we  have  therefore  maintained  a  full  valuation 
allowance against our state deferred tax assets.

Under Internal Revenue Code Section 382, the utilization of a corporation’s NOL carryforwards 
is limited following a change in ownership (as defined by the Internal Revenue Code) of greater 
than 50% within a three-year period. If it is determined that prior equity transactions limit our 
NOL carryforwards, the annual limitation will be determined by multiplying the market value of 
the  Company  on  the  date  of  the  ownership  change  by  the  federal  long-term  tax-exempt  rate. 
Any  amount  exceeding  the  annual  limitation  may  be  carried  forward  to  future  years  for  the 
balance of the NOL carryforward period.

A more-than-50% cumulative change in ownership occurred in 1992. As a result of such change, 
approximately  $14  million  of  our  NOL  carryforwards  were  limited  as  of  December  31,  2007 
and 2006.

Uncertain Income Tax Positions

We  adopted  FIN  48,  on  January  1,  2007. As  a  result  of  the  implementation,  we  recognized  a 
$2.1 million increase to reserves for uncertain tax positions. This increase, related to federal tax 
credits, was accounted for as a reduction to retained earnings on the balance sheet. Including 
this  cumulative  effect  adjustment,  the  gross  amount  of  the  Company’s  unrecognized  tax 
benefits  as  of  January  1,  2007  and  December  31,  2007  were  $6.2  million  and  $4.4  million, 
respectively,  that  if  recognized,  would  impact  the  Company’s  effective  income  tax  rate  in  the 
period of recognition. The total amount of unrecognized tax benefits could increase or decrease 
within the next twelve months for a number of reasons including the expiration of statutes of 
limitations, audit settlements, tax examination activities and the recognition and measurement 
considerations under FIN 48.

During 2007, we completed a tax study related to our research and development tax credits. As 
a  result  of  this  study,  we  reduced  the  gross  amount  of  the  related  research  and  development 
tax  credits  by  $3.0  million  in  third  quarter  2007  when  we  filed  our  2006  tax  return. This 
reduction resulted in additional income tax expense of approximately $1.5 million and reduced 
our  related  FIN  48  reserve  by  $1.5  million.  During  2007,  we  also  filed  our  2006  tax  return 
which  resulted  in  a  reduction  in  certain  other  gross  tax  benefits  of  $0.3  million  with  an  equal 
reduction  to  our  FIN  48  reserve. As  of  December  31,  2007,  our  FIN  48  reserve  is  $4.4  million. 
We  do  not  expect  a  material  change  in  this  estimate  in  the  next  twelve  months,  although  a 
change is possible.

101

The  following  is  a  roll  forward  of  our  total  gross  unrecognized  tax  benefits  liabilities  for  the 
fiscal year 2007 (in thousands):

Balance as of January 1, 2007 

Tax positions related to current year 

Additions 

Reductions 

Tax positions related to prior years 

Additions 

Reductions 

Settlements 

Lapses in statues of limitations

Balance as of December 31, 2007 

$  6,220

—

—

—

(1,816)

—

$  4,404

The  Company  and  its  subsidiaries  are  subject  to  US  federal  income  tax,  foreign  income  and 
withholding  taxes,  and  income  taxes  from  multiple  state  jurisdictions. The  majority  of  our 
federal and state tax returns from 1990 through 2006 is currently open and will not close until 
the  respective  statues  of  limitations  have  expired. The  statues  of  limitations  generally  expire 
three  years  following  the  filing  of  the  return  or  in  some  cases  three  years  following  the 
utilization or expiration of net operating loss carry forwards. The statute of limitations applicable 
to our open federal returns will expire between the current year and 2010.

Our  policy  is  to  recognize  interest  and  or  penalties  related  to  income  tax  matters  in  income 
tax  expense. We  did  not  have  any  interest  or  penalties  accrued  at  January  1,  2007  or 
December 31, 2007.

Between  1999  and  2005  we  paid  approximately  $30.7  million  of  foreign  taxes.  During  this 
period  we  were  in  a  net  operating  loss  position  for  U.S.  federal  income  tax  purposes  and 
elected  to  deduct  these  foreign  tax  payments  as  expenses  on  our  U.S.  federal  income  tax 
returns rather than take them as foreign tax credits. We elected this strategy because a) we had 
no  U.S.  cash  tax  obligations  at  the  time  and  b)  net  operating  losses  can  be  carried  forward 
significantly  longer  than  foreign  tax  credits. We  utilized  most  of  our  net  operating  losses  in 
2006  and  began  to  generate  U.S.  cash  tax  obligations. At  that  time,  we  began  to  treat  our 
foreign tax payments as foreign tax credits on our U.S. federal income tax return.

We are currently evaluating the possibility of amending our U.S. federal income tax returns for 
the periods 1999–2005 to determine if we are able to take the foreign tax payments we made 
during  that  period  as  foreign  tax  credits  instead  of  deductions. The  process  to  amend  these 
returns is complicated including aggregating information that was not previously required and 
may  not  be  available  and  involves  tax  treaty  competent  authority  procedures  including  both 
U.S.  and  foreign  tax  authorities.  It  is  possible  that  we  may  be  unable  to  establish  a  basis  to 
support  amending  the  returns,  but  it  is  estimated  that  a  maximum  benefit  could  be  a  refund 
claim  of  approximately  $20  million. We  can  not  yet  predict  the  amount  if  any,  of  potential 
refund  and  we  do  not  anticipate  being  in  a  position  to  file  any  amended  returns  until  2009, 
although  it  is  possible  that  we  could  file  amended  returns  sooner.  No  benefit  has  been 
recorded for this contingent gain.

102

 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
13.  eQUITY TRa nS acTIonS

Repurchase of Common Stock

In  2006  our  Board  of  Directors  authorized  the  repurchase  of  up  to  $350.0  million  of  our 
outstanding  common  stock.  In  October  2007,  our  Board  of  Directors  authorized  a  new 
$100.0  million  share  repurchase  program. The  Company  may  repurchase  shares  under  the 
program  through  open  market  purchases,  pre-arranged  trading  plans  or  privately  negotiated 
purchases. During 2006 we repurchased approximately 6.5 million shares of common stock for 
$192.5  million.  At  December  31,  2006,  we  accrued  accounts  payable  of  approximately 
$7.6 million associated with our obligation to settle late December repurchases. We completed 
the  2006  repurchase  program  in April  2007  through  the  repurchase  of  4.8  million  shares  of 
common  stock  for  $157.7  million.  Under  the  October  2007  authorization,  we  repurchased 
approximately 1.0 million shares of common stock for $18.5 million. At December 31, 2007, we 
accrued accounts payable of approximately $0.8 million associated with our obligation to settle 
late December repurchases. From January 1, 2008 through February 22, 2008, we repurchased 
an  additional  0.3  million  shares  for  $7.9  million  bringing  the  cumulative  repurchase  totals  to 
1.3  million  shares  at  a  cost  of  $26.4  million  under  the  current  program.  Under  a  previous 
repurchase  program  in  2005,  we  repurchased  2.0  million  shares  of  common  stock  for 
$34.1 million.

Common Stock Warrants

As of December 31, 2007 and December 31, 2006 we had no warrants outstanding.

14.  SelecTeD  QU aRTeRl Y  ReS Ul TS  (UnaUDITeD)

The table below presents quarterly data for the years ended December 31, 2007 and 2006:

(in thousands, except per share amounts, unaudited) 

First 

Second 

Third 

Fourth

2007:

Revenues(a) 

Net income (loss) applicable to  
  common shareholders(b) 

Net income (loss) per common share—basic 

Net income (loss) per common share—diluted 

$  67,818 

$  55,006 

$  56,548 

$  54,860

$  17,669 

$ 

$ 

0.35 

0.34 

$ 

$ 

$ 

(4,406) 

$  8,717 

$  (1,976)

(0.09) 

(0.09) 

$ 

$ 

0.18 

0.18 

$ 

$ 

(0.04)

(0.04)

2006:

Revenues(c) 

$  51,606 

$  296,617 

$  67,175 

$  65,068

Net income applicable to common shareholders(c)  $  12,939 

$  170,363 

$  21,657 

$  20,263

Net income per common share—basic 

Net income per common share—diluted 

$ 

$ 

0.24 

0.23 

$ 

$ 

3.13 

2.98 

$ 

$ 

0.41 

0.40 

$ 

$ 

0.39

0.37

(a)   During first quarter 2007, the Company recognized $9.3 million associated with prior period sales of Sony Ericsson’s covered 2G products 

identified in a routine audit.

(b)   During second quarter 2007, the Company recorded a $16.6 million charge to record a contingent liability associated with our dispute with 
Federal. During fourth quarter 2007, the Company recorded a $7.8 million charge to record a contingent liability for the reimbursement of 
legal fees that may become due to Nokia in connection with our UK II litigation.

(c)   During second quarter 2006, the Company entered into agreements with Nokia Corporation to resolve certain legal proceedings with 
them. Specifically, in an Arbitration Settlement Agreement, the parties resolved their disputes arising out of the June 2005 International 
Court  of  Arbitration  of  the  International  Chamber  of  Commerce  Arbitration  Tribunal  Award.  Pursuant  to  the  Arbitration  Settlement 
Agreement,  on  April  28,  2006,  Nokia  paid  InterDigital  $253  million. We  recognized  $228  million  of  revenue  related  to  the  Arbitration 
Settlement Agreement in second quarter 2006, and $12.5 million in each of the third and fourth quarters of 2006.

103

ITeM  9.  cHangeS  In  an D  DISagReeMenTS WITH  accoUnTanTS   
on  accoUnTIng  anD   FIna ncIa l  DIScloSURe

None.

ITeM  9a.  conTR olS  anD   PR oceDUReS

Evaluation of Disclosure Controls and Procedures

The  Company’s  Chief  Executive  Officer  and  its  Chief  Financial  Officer,  with  the  assistance  of 
other  members  of  management,  have  evaluated  the  effectiveness  of  our  disclosure  controls 
and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act 
of 1934) as of the end of the period covered by this report. Based on that evaluation, the Chief 
Executive  Officer  and  Chief  Financial  Officer  have  concluded  that  our  disclosure  controls  and 
procedures  were  effective  in  their  design  to  ensure  that  the  information  required  to  be 
disclosed  by  us  in  the  reports  that  we  file  under  the  Securities  Exchange  Act  of  1934  is 
recorded,  processed,  summarized  and  reported  within  the  time  periods  specified  in  the  SEC’s 
rules and forms and to ensure that the information required to be disclosed by us in the reports 
that we file under the Securities and Exchange Act of 1934 is accumulated and communicated 
to our management, including our principal executive and financial officers, as appropriate to 
allow timely decisions regarding required disclosure.

Management’s Annual Report on Internal Control Over Financial Reporting

Management  is  responsible  for  establishing  and  maintaining  adequate  internal  control  over 
financial  reporting  as  defined  in  Rules  13a-15(f)  and  15d-15(f)  under  the  Securities  Exchange 
Act  of  1934. The  Company’s  internal  control  over  financial  reporting  is  a  process  designed  to 
provide reasonable assurance regarding the reliability of financial reporting and the preparation 
of financial statements for external purposes in accordance with accounting principles generally 
accepted  in  the  United  States  of America.  Internal  control  over  financial  reporting  includes 
those policies and procedures that:

•  Pertain  to  the  maintenance  of  records  that,  in  reasonable  detail,  accurately  and  fairly  reflect 

the transactions and dispositions of the assets of the Company;

•  Provide  reasonable  assurance  that  transactions  are  recorded  as  necessary  to  permit 
preparation  of  financial  statements  in  accordance  with  accounting  principles  generally 
accepted in the United States of America, and that receipts and expenditures of the Company 
are  being  made  only  in  accordance  with  authorization  of  management  and  directors  of  the 
Company; and

•  Provide  reasonable  assurance  regarding  prevention  or  timely  detection  of  unauthorized 
acquisition,  use  or  disposition  of  the  Company’s  assets  that  could  have  a  material  effect  on 
the consolidated financial statements.

Management,  including  the  Chief  Executive  Officer  and  Chief  Financial  Officer,  assessed  the 
effectiveness of internal control over financial reporting as of December 31, 2007. Management 
based this assessment on criteria for effective internal control over financial reporting described 
in  “Internal  Control—Integrated  Framework”  issued  by  the  Committee  of  Sponsoring 
Organizations  of  the Treadway  Commission.  Based  on  this  assessment,  management 
determined  that,  as  of  December  31,  2007,  the  Company  maintained  effective  internal  control 
over financial reporting at a reasonable assurance level.

104

The effectiveness of the Company’s internal control over financial reporting as of December 31, 
2007  has  been  audited  by  PricewaterhouseCoopers  LLP,  an  independent  registered  public 
accounting firm, as stated in their report which appears under Item 8 in this Annual Report on 
Form 10-K.

Changes in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting during the fourth quarter 
of 2007 that have materially affected, or are reasonably likely to materially affect, our internal 
control over financial reporting.

ITeM  9b .  oTHeR   InFoRMa TIon

None.

PaRT III

ITeM  10.  DIRecToRS,  eXecUTIVe   
oFFIceRS  anD  coR PoRa Te  goVeRnance

Information  concerning  directors  is  incorporated  by  reference  herein  from  the  information 
following  the  caption “ELECTION  OF  DIRECTORS  –  Nominees  for  Election  to  the  Board  of 
Directors Three Year Term  Expiring  at  2011  Annual  Meeting  of  Shareholders”  to,  but  not 
including,  “Committees  and  Meetings  of  the  Board  of  Directors”  in  our  Definitive  Proxy 
Statement  to  be  filed  with  the  Securities  and  Exchange  Commission  pursuant  to  Regulation 
14A,  not  later  than  120  days  after  the  end  of  our  fiscal  year  ended  December  31,  2007,  and 
which  shall  be  forwarded  to  shareholders  prior  to  the  2008 Annual  Meeting  of  Shareholders 
(Proxy Statement).

Our Code of Business Conduct and Ethics is applicable to all employees and consultants of the 
Company  including  the  Chief  Executive  Officer,  Chief  Financial  Officer,  and  the  Board  of 
Directors  (Code).  In  addition,  each  of  our  consultants  agrees  to  abide  by  its  terms. A  copy  of 
the Code is available free of charge on our Internet website at www.interdigital.com. We intend 
to  disclose  any  amendment  to  the  Code  or  waiver  from  a  provision  of  the  Code  made  to  our 
Chief  Executive  Officer,  Chief  Financial  Officer—Chief Accounting  Officer  or  Controller  on  our 
website.  Information  concerning  the  Company’s Audit  Committee  and  the  Company’s Audit 
Committee  financial  expert  is  incorporated  herein  by  reference  to  the  Proxy  Statement 
following  the  caption  “Audit  Committee  Report”  to,  but  not  including,  “RATIFICATION  OF 
APPOINTMENT  OF  INDEPENDENT  REGISTERED  PUBLIC  ACCOUNTING  FIRM.”  In  addition, 
information  set  forth  in  the  two  paragraphs  immediately  following  the  caption “Section  16(a) 
Beneficial  Ownership  Reporting  Compliance”  in  the  Proxy  Statement  is  incorporated  by 
reference herein. Information concerning executive officers appears under the caption “Item 1. 
Business, Executive Officers” in Part 1 of this Annual Report on Form 10-K.

ITeM  11.  eXecUTIVe  coMPenS aTIon

The  information  required  by  this  item  is  incorporated  by  reference  to  the  Proxy  Statement 
following the caption “2007 Director Compensation Narrative” to, but not including, “Security 
Ownership of Management.”

ITeM  12.  SecUR ITY  oWneRS HIP  oF  ceRTaIn  beneFIcIal  oWneRS 
anD  ManageMenT  anD  Rela TeD  ST ocKH olDeR  Ma TTeRS

The  information  required  by  this  item  is  incorporated  by  reference  to  the  Proxy  Statement 
following  the  caption “Security  Ownership  of  Certain  Beneficial  Owners”  to  and  including  all 
information in the section “Equity Compensation Plan Information.”

105

ITeM  13.  ceRTaIn  RelaTIonSH IPS  anD  RelaTeD TRanSacTIonS,   
anD  DIRecT oR  InDePenDenc e

The  information  required  by  this  item  is  incorporated  by  reference  to  the  Proxy  Statement 
following  the  caption “Our  Policies  Regarding  the  Review  and Approval  of  Related  Person 
Transactions” to and including all information in the section “Director Independence.”

ITeM  14.  PRIncIP al  acc oUnT anT  FeeS  anD  SeRVIceS

The  information  required  by  this  item  is  incorporated  by  reference  to  the  Proxy  Statement 
following the caption “Fees Paid to Independent Registered Public Accounting Firm”

PaRT IV

ITeM  15.  eXHIbITS  anD  FInancIal  ST aTeMenT  ScHeDUleS

(a) The following documents are filed as a part of this Annual Report on Form 10-K:

(1)  Financial Statements 

The information required by this Item begins on Page 67.

(2) Financial Statement Schedules

InterDigital, Inc. and Subsidiaries Schedule II – Valuation and Qualifying Accounts

(in thousands)

Description 

2007 Valuation Allowance  
  for Deferred Tax Assets 

2006 Valuation Allowance  
  for Deferred Tax Assets 

2005 Valuation Allowance  
  for Deferred Tax Assets 

Balance 
Beginning 
of Period 

  Reversal of 
Valuation 
(Decrease)  Allowance 

Increase 

Balance, 
End of 
Period

$  34,110 

$  8,346 (a) 

$ 

—  

$  42,456

  22,692 

  11,418 (a) 

—  

34,110

  86,168 

  3,181   

  (66,657) (b) 

  22,692

(a)   The increase was necessary to maintain a full valuation allowance against our state deferred tax assets and did not result in additional  

tax expense.

(b)   Of the $66.7 million benefit, approximately $46.4 million was recognized as income in our Statement of Operations and approximately 

$20.3 million was credited directly to additional paid-in capital.

106

 
 
 
 
  
 
(3)  Exhibits. 

See Item 15(b) below.

(b) Exhibit

Exhibit Number  Exhibit Description

     *2.1  

     *2.2 

     *2.3 

     *3.1 

     *3.2 

     *4.1 

   *10.1 

   *10.2 

    10.3 

  *10.4  

  *10.5  

  *10.6  

  *10.7  

  *10.8  

 Asset  Purchase  Agreement  dated  as  of  July  30,  2003  by  and  between 
InterDigital Acquisition  Corp.  and Tantivy  Communications,  Inc.  (Exhibit  2.1  to 
InterDigital’s Current Report on Form 8-K dated August 4, 2003).

 Plan of Reorganization by and among InterDigital Communications Corporation, 
InterDigital,  Inc.  and  ID  Merger  Company  dated  July  2,  2007  (Exhibit  2.1  to 
InterDigital’s Quarterly Report on Form 10-Q dated August 9, 2007).

 Agreement  and  Plan  of  Merger  by  and  among  InterDigital  Communications 
Corporation,  InterDigital,  Inc.  and  ID  Merger  Company  dated  July  2,  2007 
(Exhibit  2.2  to  InterDigital’s  Quarterly  Report  on  Form  10-Q  dated 
August 9, 2007).

  Articles  of  Incorporation  of  InterDigital,  Inc.  (Exhibit  3.1  to  InterDigital’s 
Quarterly Report on Form 10-Q dated August 9, 2007).

  Bylaws of InterDigital, Inc. (Exhibit 3.2 to InterDigital’s Quarterly Report on Form 
10-Q dated August 9, 2007).

 Rights Agreement  between  InterDigital,  Inc.  and American  Stock Transfer  & 
Trust  Co.,  dated  July  2,  2007.  (Exhibit  4.1  to  InterDigital’s  Quarterly  Report  on 
Form 10-Q dated August 9, 2007).

Contracts

  Credit Agreement  dated  as  of  December  28,  2005  among  InterDigital,  Bank  of 
America,  N.A.  as Administrative Agent  and  L/C  Issuer  and  the  other  Lenders 
party  thereto  (Exhibit  10.86  to  InterDigital’s Annual  Report  on  Form  10-K  dated 
March 14, 2006).

 First Amendment,  Consent  and  Joinder  to  Credit Agreement  by  and  between 
InterDigital,  the  Subsidiary  Guarantors  Party  Hereto,  the  Lenders  Party  Hereto 
and  Bank  of  America,  N.A.,  as  Administrative  Agent  and  L/C  Issuer  dated 
July 2, 2007 (Exhibit 10.88 to InterDigital’s Quarterly Report on Form 10-Q dated 
August 9, 2007).

 Second  Amendment  to  Credit  Agreement  by  and  between  InterDigital, 
the  Subsidiary  Guarantors  Party  Hereto,  the  Lenders  Party  Hereto  and 
Bank  of  America,  N.A.,  as  Administrative  Agent  and  L/C  Issuer  dated 
December 28, 2007 (Filed herewith).

  Intellectual  Property  License  Agreement  between  InterDigital  and  Hughes 
Network  Systems,  Inc.  (Exhibit  10.39  to  InterDigital’s  Registration  Statement 
No. 33-28253 filed on April 18, 1989).

 1992  License  Agreement  dated  February  29,  1992  between  InterDigital  and 
Hughes  Network  Systems,  Inc.  (Exhibit  10.3  to  InterDigital’s  Current  Report  on 
Form 8-K dated February 29, 1992).

 E-TDMA  License Agreement  dated  February  29,  1992  between  InterDigital  and 
Hughes  Network  Systems,  Inc.  (Exhibit  10.4  to  InterDigital’s  Current  Report  on 
Form 8-K dated February 29, 1992).

 The TDD  Development  Agreement  between  and  among  InterDigital,  ITC 
and  Nokia  (Exhibit  10.55  to  InterDigital’s  Current  Report  on  Form  8-K/A  dated 
July 2, 2003).

 Amendment  No.  1  to  the TDD  Development Agreement  dated  September  30, 
2001  between  and  among  InterDigital,  ITC  and  Nokia  (Exhibit  10.56  to 
InterDigital’s Current Report on Form 8-K/A dated July 2, 2003).

107

 
  *10.9  

  *10.10 

  *10.11 

  *10.12 

  *10.13 

  *10.14 

  *10.15 

  *10.16 

  *10.17 

  *10.18 

  *10.19 

  *10.20 

  *10.21 

†*10.22 

†*10.23 

†*10.24 

†*10.25 

108

 Amendment  to  the  Patent  License  Agreement  of  May  8,  1995  between  ITC 
and  NEC  (Exhibit  10.52  to  InterDigital’s  Current  Report  on  Form  8-K  dated 
February 21, 2003).

 Patent  License  Agreement  by  and  between  InterDigital  Communications 
Corporation  and  Samsung  Electronics  Co.,  Ltd.,  effective  January  22,  1996 
(Exhibit  10.85  to  InterDigital’s  Quarterly  Report  on  Form  10-Q  dated 
November 9, 2006).

 PHS and PDC Subscriber Unit Patent License Agreement dated March 19, 1998 
between  ITC  and  Sharp  Corporation  of  Japan  (Sharp)  (Exhibit  10.57  to 
InterDigital’s Current Report on Form 8-K dated February 21, 2003).

 Amendment  No.  1  dated  March  23,  2000  and  Amendment  No.  2  dated 
May 30, 2003 to PHS and PDC Subscriber Unit Patent License Agreement dated 
March  19,  1998  between  ITC  and  Sharp  (Exhibit  10.58  to  InterDigital’s 
Amendment No. 1 to Current Report on Form 8-K/A dated July 2, 2003).

 Litigation Expense and Reimbursement Agreement by and between InterDigital, 
ITC  and  Federal  Insurance  Company  dated  February  15,  2000  (Exhibit  99.1  to 
InterDigital’s Quarterly Report on Form 10-Q dated November 9, 2005).

 Narrowband  CDMA  and Third  Generation  Patent  License  Agreement  dated 
January  15,  2002  between  ITC  and  NEC  (Exhibit  10.53  to  InterDigital’s  Current 
Report on Form 8-K dated February 21, 2003).

 Settlement Agreement  dated  January  15,  2002  between  ITC  and  NEC  (Exhibit 
10.54 to InterDigital’s Current Report on Form 8-K dated February 21, 2003).

 License Agreement by and between InterDigital Group and LG Electronics, Inc. 
dated January 1, 2006 (Exhibit 10.82 to InterDigital’s Quarterly Report on Form 
10-Q dated May 10, 2006).

 Amendment  to  Patent  License Agreement  effective  January  1,  2007,  by  and 
between  InterDigital Technology  Company  and  NEC  Corporation  (Exhibit  10.92 
to InterDigital’s Quarterly Report on Form 10-Q dated August 9, 2007).

 Arbitration Settlement Agreement by and between InterDigital Communications 
Corporation,  InterDigital Technology  Corporation  and  Nokia  Corporation  dated 
April  26,  2006  (Exhibit  10.83  to  InterDigital’s  Quarterly  Report  on  Form  10-Q 
dated August 7, 2006).

 Agreement of Lease dated November 25, 1996 by and between InterDigital and 
We’re Associates  Company  (Exhibit  10.42  to  InterDigital’s Annual  Report  on 
Form 10-K for the year ended December 31, 2000).

 Modification  of  Lease Agreement  dated  December  28,  2000  by  and  between 
InterDigital and We’re Associates Company (Exhibit 10.43 to InterDigital’s Annual 
Report on Form 10-K for the year ended December 31, 2000).

 Third Modification to Lease Agreement effective June 1, 2006 by and between 
InterDigital  and  Huntington  Quadrangle  2  (successor  to We’re  Associates 
Company).  (Exhibit  10.18  to  InterDigital’s Annual  Report  on  Form  10-K  for  the 
year ended December 31, 2006).

Benefit Plans

 Non-Qualified  Stock  Option  Plan,  as  amended  (Exhibit  10.4  to  InterDigital’s 
Annual Report on Form 10-K for the year ended December 31, 1991).

 Amendment  to  Non-Qualified  Stock  Option  Plan  (Exhibit  10.31  to  InterDigital’s 
Quarterly Report on Form 10-Q dated August 14, 2000).

 Amendment  to  Non-Qualified  Stock  Option  Plan,  effective  October  24,  2001 
(Exhibit  10.6  to  InterDigital’s Annual  Report  on  Form  10-K  for  the  year  ended 
December 31, 2001).

 1992  Non-Qualified  Stock  Option  Plan  (Exhibit  10.1  to  InterDigital’s  Current 
Report on Form 8-K dated October 21, 1992).

  
†*10.26 

†*10.27 

†*10.28 

†*10.29 

†*10.30 

†*10.31 

†*10.32 

†*10.33 

†*10.34 

†*10.35 

†*10.36 

†*10.37 

†*10.38 

†*10.39 

†*10.40 

†*10.41 

†*10.42 

†*10.43 

†*10.44 

 Amendment  to  1992  Non-Qualified  Stock  Option  Plan  (Exhibit  10.32  to 
InterDigital’s Quarterly Report on Form 10-Q dated August 14, 2000).

 1992 Employee Stock Option Plan (Exhibit 10.71 to InterDigital’s Annual Report 
on Form 10-K for the year ended December 31, 1992).

 Amendment to 1992 Employee Stock Option Plan (Exhibit 10.29 to InterDigital’s 
Quarterly Report on Form 10-Q dated August 14, 2000).

 Amendment  to  1992  Employee  Stock  Option  Plan,  effective  October  24,  2001 
(Exhibit  10.11  to  InterDigital’s Annual  Report  on  Form  10-K  for  the  year  ended 
December 31, 2001).

 1995  Stock  Option  Plan  for  Employees  and  Outside  Directors,  as  amended 
(Exhibit  10.7  to  InterDigital’s Annual  Report  on  Form  10-K  for  the  year  ended 
December 31, 1997).

 Amendment to the 1995 Stock Option Plan for Employees and Outside Directors 
(Exhibit  10.25  to  InterDigital’s Annual  Report  on  Form  10-K  for  the  year  ended 
December 31, 1999).

 Amendment  to  1995  Stock  Option  Plan  for  Employees  and  Outside  Directors 
(Exhibit 10.33 to Quarterly Report on Form 10-Q dated August 14, 2000).

 Amendment  to  1995  Stock  Option  Plan  for  Employees  and  Outside  Directors, 
effective October 24, 2001 (Exhibit 10.15 to InterDigital’s Annual Report on Form 
10-K for the year ended December 31, 2001).

 1997  Stock  Option  Plan  for  Non-Employee  Directors  (Exhibit  10.34 
to  InterDigital’s  Quarterly  Report  on  Form  10-Q  for  the  quarter  ended 
September 30, 1997).

 Amendment  to  1997  Stock  Option  Plan  for  Non-Employee  Directors  (Exhibit 
10.34 to InterDigital’s Quarterly Report on Form 10-Q dated August 14, 2000).

 1997  Stock  Option  Plan  for  Non-Employee  Director s,  as  amended 
March  30,  2000  (Exhibit  10.42  to  InterDigital’s  Quarterly  Report  on  Form  10-Q 
dated August 14, 2000).

 Amendment  to  1997  Stock  Option  Plan  for  Non-Employee  Directors,  effective 
October 24, 2001 (Exhibit 10.19 to InterDigital’s Annual Report on Form 10-K for 
the year ended December 31, 2001).

 1999  Restricted  Stock  Plan,  as  amended  April  13,  2000  (Exhibit  10.43  to 
InterDigital’s Quarterly Report on Form 10-Q dated August 14, 2000).

 1999 Restricted Stock Plan, Form of Restricted Stock Unit Agreement [Awarded 
to  Independent  Directors  Upon  Re-Election]  (Exhibit  10.62  to  InterDigital’s 
Quarterly Report on Form 10-Q dated November 9, 2004).

 1999  Restricted  Stock  Plan,  Form  of  Restricted  Stock  Unit Agreement  [Annual 
Award to Independent Directors] (Exhibit 10.63 to InterDigital’s Quarterly Report 
on Form 10-Q dated November 9, 2004).

 1999  Restricted  Stock  Plan,  Form  of  Restricted  Stock  Unit  Agreement 
[Periodically Awarded  to  Members  of  the  Board  of  Directors]  (Exhibit  10.64  to 
InterDigital’s Quarterly Report on Form 10-Q dated November 9, 2004).

 1999  Restricted  Stock  Plan,  Form  of  Restricted  Stock Agreement  [Awarded  to 
Executives  and  Management  as  Part  of  Annual  Bonus]  (Exhibit  10.65  to 
InterDigital’s Quarterly Report on Form 10-Q dated November 9, 2004).

 1999 Restricted Stock Plan, Form of Restricted Stock Unit Agreement [Awarded 
to  Independent  Directors  Upon  Re-Election]  (Exhibit  10.62  to  InterDigital’s 
Quarterly Report on Form 10-Q dated August 9, 2005).

 1999  Restricted  Stock  Plan,  Form  of  Restricted  Stock  Unit Agreement  [Annual 
Award to Independent Directors] (Exhibit 10.63 to InterDigital’s Quarterly Report 
on Form 10-Q dated August 9, 2005).

109

 2000  Stock Award  and  Incentive  Plan  (Exhibit  10.28  to  InterDigital’s  Quarterly 
Report on Form 10-Q dated August 14, 2000).

 2000  Stock Award  and  Incentive  Plan,  as  amended  June  1,  2005  (Exhibit  10.74 
to InterDigital’s Quarterly Report on Form 10-Q dated August 9, 2005).

 2000  Stock  Award  and  Incentive  Plan,  Form  of  Option Agreement  [Director 
Awards]  (Exhibit  10.66  to  InterDigital’s  Quarterly  Report  on  Form  10-Q  dated 
November 9, 2004).

 2000  Stock Award  and  Incentive  Plan,  Form  of  Option Agreement  [Executive 
Awards]  (Exhibit  10.67  to  InterDigital’s  Quarterly  Report  on  Form  10-Q  dated 
November 9, 2004).

 2000  Stock Award  and  Incentive  Plan,  Form  of  Option Agreement  [Inventor 
Awards]  (Exhibit  10.68  to  InterDigital’s  Quarterly  Report  on  Form  10-Q  dated 
November 9, 2004).

 2002  Stock Award  and  Incentive  Plan  (Exhibit  10.50  to  InterDigital’s  Quarterly 
Report on Form 10-Q dated May 15, 2002).

 InterDigital Communications Corporation 2002 Stock Award and Incentive Plan, 
as amended through June 4, 2003 (Exhibit 10.52 to InterDigital’s Annual Report 
on Form 10-K for the year ended December 31, 2003).

 InterDigital’s  2002  Stock Award  and  Incentive  Plan,  as  amended  June  1,  2005 
(Exhibit  10.87  to  InterDigital’s  Quarterly  Report  on  Form  10-Q  dated  November 
9, 2006).

 2002  Stock Award  and  Incentive  Plan,  Form  of  Option Agreement  [Inventor 
Awards]  (Exhibit  10.69  to  InterDigital’s  Quarterly  Report  on  Form  10-Q  dated 
November 9, 2004).

 InterDigital  Communications  Corporation  Long-Term  Compensation  Program, 
as  amended  December  2004  (“LTCP”)  (Exhibit  10.55  to  InterDigital’s Annual 
Report on Form 10-K for the year ended December 31, 2004).

 InterDigital  Communications  Corporation  Long-Term  Compensation  Program, 
as amended April 2005 (Exhibit 10.70 to InterDigital’s Quarterly Report on Form 
10-Q dated May 9, 2005).

 InterDigital  Communications  Corporation  Long-Term  Compensation  Program, 
as amended June 2005 (Exhibit 10.70 to InterDigital’s Quarterly Report on Form 
10-Q dated August 9, 2005).

 InterDigital  Communications  Corporation  Restricted  Stock  Unit  Award 
Agreement  with  Harry  G.  Campagna  dated  February  4,  2005  (Exhibit  10.73  to 
InterDigital’s Quarterly Report on Form 10-Q dated May 9, 2005).

 Form  of  InterDigital  Communications  Corporation  Restricted  Stock  Unit Award 
Agreement (Exhibit 10.86 to InterDigital’s Quarterly Report on Form 10-Q dated 
November 9, 2006).

 Compensation  Program  for  Outside  Directors,  as  amended  January  2006 
(Incorporated from Item 1.01 of InterDigital’s Current Report on Form 8-K dated 
January 18, 2006).

 InterDigital  Communications  Corporation  Annual  Employee  Bonus  Plan,  as 
amended  December  15,  2006  (Exhibit  10.57  to  Inter  Digital’s Annual  Report  on 
Form 10-K for the year ended December 31, 2006.)

 Form  of  InterDigital  Communications  Corporation  Restricted  Stock  Unit Award 
Agreement,  as  amended  December  14,  2006  (Exhibit  10.58  to  Inter  Digital’s 
Annual Report on Form 10-K for the year ended December 31, 2006).

†*10.45 

†*10.46 

†*10.47 

†*10.48 

†*10.49 

†*10.50 

†*10.51 

†*10.52 

†*10.53 

†*10.54 

†*10.55 

†*10.56 

†*10.57 

†*10.58 

†*10.59 

†*10.60 

†*10.61 

110

†*10.62 

†*10.63 

†*10.64 

†*10.65 

†*10.68 

†*10.69 

†*10.70 

†*10.71 

†*10.72 

†*10.73 

†*10.74 

†*10.76 

Employment-Related Agreements

 Indemnity Agreement dated as of March 19, 2003 by and between the Company 
and  Howard  E.  Goldberg  (pursuant  to  Instruction  2  to  Item  601  of  Regulation 
S-K, the Indemnity Agreements, which are substantially identical in all material 
respects, except as to the parties thereto and the dates, between the Company 
and  the  following  individuals,  were  not  filed:  Bruce  G.  Bernstein,  D.  Ridgely 
Bolgiano,  Richard  J.  Brezski,  Harry  G.  Campagna,  Steven T.  Clontz,  Joseph  S. 
Colson, Jr., Patrick J. Donahue, Richard J. Fagan, Guy M. Hicks, Gary D. Isaacs, 
John  D.  Kaewell,  Edward  B.  Kamins,  Brian  G.  Kiernan,  Mark A.  Lemmo,  Linda 
S.  Lutkefedder,  Scott A.  McQuilkin, William  J.  Merritt, William  C.  Miller,  James 
Nolan, Rebecca B. Opher, Janet M. Point, Robert S. Roath, Jane S. Schultz, and 
Lawrence F. Shay) (Exhibit 10.47 to InterDigital’s Quarterly Report on Form 10-Q 
dated May 15, 2003).

 Employment Agreement  dated  May  7,  1997  by  and  between  InterDigital  and 
Mark A.  Lemmo  (Exhibit  10.32  to  InterDigital’s  Quarterly  Report  on  Form  10-Q 
for the quarter ended March 31, 1997).

 Amendment dated as of April 6, 2000 by and between InterDigital and Mark A. 
Lemmo  (Exhibit  10.37  to  InterDigital’s  Quarterly  Report  on  Form  10-Q  dated 
August 14, 2000).

 Amended  and  Restated  Employment Agreement  dated  as  of April  2,  2007  by 
and  between  InterDigital  and  Richard  J.  Fagan  (Exhibit  10.1  to  InterDigital’s 
Quarterly Report on Form 10-Q dated May 10, 2007).

 Employment Agreement dated November 19, 1996 by and between InterDigital 
and Brian G. Kiernan (Exhibit 10.37 to InterDigital’s Annual Report on Form 10-K 
for the year ended December 31, 2000).

 Amendment dated as of April 6, 2000 by and between InterDigital and Brian G. 
Kiernan (Exhibit 10.38 to InterDigital’s Annual Report on Form 10-K for the year 
ended December 31, 2000).

 Employment Agreement  dated  July  24,  2000  by  and  between  InterDigital  and 
William C. Miller (Exhibit 10.39 to InterDigital’s Annual Report on Form 10-K for 
the year ended December 31, 2000).

 Employment  Agreement  dated  as  of  November  12,  2001  by  and  between 
InterDigital  and  Lawrence  F.  Shay  (Exhibit  10.38  to  InterDigital’s Annual  Report 
on Form 10-K for the year ended December 31, 2001).

 Amended  and  Restated  Employment Agreement  dated  May  16,  2005,  by  and 
between William J. Merritt and InterDigital (Exhibit 10.1 to InterDigital’s Current 
Report on Form 8-K dated May 16, 2005).

 Employment Agreement  dated  as  of  June  20,  2005  by  and  between  Bruce  G. 
Bernstein and InterDigital (Exhibit 10.1 to InterDigital’s Current Report on Form 
8-K dated June 20, 2005).

 Employment  Agreement  by  and  between  InterDigital  Communications 
Corporation and James Nolan dated May 16, 2006 (Exhibit 10.84 to InterDigital’s 
Quarterly Report on Form 10-Q dated August 7, 2006).

 Amendment  and Assignment  of  Employment Agreement  dated  as  of  July  2, 
2007  by  and  between  InterDigital  Communications  Corporation,  InterDigital, 
Inc. and Bruce G. Bernstein (pursuant to Instruction 2 to Item 601 of Regulation 
S-K, the Amendment and Assignment of Employment Agreements dated as of 
July 2, 2007 which are substantially identical in all material respects, except as 
to  the  parties  thereto,  between  InterDigital  Communications  Corporation, 
InterDigital,  Inc.  and  the  following  individuals,  were  not  filed:  James  Nolan, 
Brian  G.  Kiernan, William  J.  Merritt, William  C.  Miller,  and  Mark A.  Lemmo, 
respectively)  (Exhibit  10.89  to  InterDigital’s  Quarterly  Report  on  Form  10-Q 
dated August 9, 2007).

111

  
†*10.77 

†*10.78 

21 

  23.1 

  31.1 

  31.2 

  32.1 

  32.2 

 Assignment and Assumption of Indemnity Agreement dated as of July 2, 2007, 
by and between InterDigital Communications Corporation, InterDigital, Inc. and 
Bruce G. Bernstein (pursuant to Instruction 2 to Item 601 of Regulation S-K, the 
Indemnity Agreements, which are substantially identical in all material respects, 
except  as  to  the  parties  thereto,  between  InterDigital  Communications 
Corporation,  InterDigital,  Inc.  and  the  following  individuals,  were  not  filed:  D. 
Ridgely  Bolgiano,  Richard  J.  Brezski,  Harry  G.  Campagna,  Steven T.  Clontz, 
Richard J. Fagan, Gary D. Isaacs, John D. Kaewell, Edward B. Kamins, Brian G. 
Kiernan,  Mark A.  Lemmo,  Linda  S.  Lutkefedder, William  J.  Merritt, William  C. 
Miller,  James  Nolan,  Rebecca  B.  Opher,  Robert  S.  Roath,  Jane  S.  Schultz,  and 
Lawrence F. Shay) (Exhibit 10.90 to InterDigital’s Quarterly Report on Form 10-Q 
dated August 9, 2007).

 Employment Agreement  dated  July  9,  2007  by  and  between  InterDigital,  Inc. 
and Scott A. McQuilkin (Exhibit 10.91 to InterDigital’s Quarterly Report on Form 
10-Q dated August 9, 2007).

 Subsidiaries of InterDigital.

 Consent of PricewaterhouseCoopers LLP.

 Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-
Oxley Act of 2002.

 Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-
Oxley Act of 2002.

 Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 
906 of the Sarbanes-Oxley Act of 2002 for William J. Merritt.

 Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 
906 of the Sarbanes-Oxley Act of 2002 for Scott A. McQuilkin.

*Incorporated by reference to the previous filing indicated.
†Management contract or compensatory plan or arrangement.

(c) None.

112

  
 
 
SIgnaTUReS

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the 
registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto 
duly authorized.

InterDigital, Inc.

Date: February 29, 2008 

Date: February 29, 2008 

/s/ William J. Merritt
William J. Merritt
President and Chief Executive Officer

/s/ Scott A. McQuilkin
Scott A. McQuilkin
Chief Financial Officer

Pursuant to the requirement of the Securities Exchange Act of 1934, this report has been signed 
below by the following persons on behalf of InterDigital and in the capacities and on the dates 
indicated.

Date: February 29, 2008 

Date: February 29, 2008 

Date: February 29, 2008 

Date: February 29, 2008 

Date: February 29, 2008 

Date: February 29, 2008 

Date: February 29, 2008 

Date: February 29, 2008 

Date: February 29, 2008 

/s/ D. Ridgely Bolgiano
D. Ridgely Bolgiano, Director

/s/ Harry G. Campagna
 Harry G. Campagna,  
Chairman of the Board of Directors

/s/ Steven T. Clontz
Steven T. Clontz, Director

/s/ Edward B. Kamins
Edward B. Kamins, Director

/s/ Robert S. Roath
Robert S. Roath, Director

/s/ Robert W. Shaner
Robert W. Shaner, Director

/s/ William J. Merritt
William J. Merritt, Director,  
President and Chief Executive Officer  
(Principal Executive Officer)

/s/ Scott A. McQuilkin
Scott A. McQuilkin, Chief Financial Officer
(Principal Financial Officer)

/s/ Richard J. Brezski
Richard J. Brezski, Chief Accounting Officer

113

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
eXHIbIT  InDeX

Exhibit

Exhibit Number  Exhibit Description

  10.3 

21 

  23.1 

  31.1 

  31.2 

  32.1 

  32.2 

 Second  Amendment  to  Credit  Agreement  by  and  between  InterDigital,  the 
Subsidiary  Guarantors  Party  Hereto,  the  Lenders  Party  Hereto  and  Bank  of 
America,  N.A.,  as Administrative Agent  and  L/C  Issuer  dated  December  28, 
2007 (Filed herewith).

Subsidiaries of InterDigital.

Consent of PricewaterhouseCoopers LLP.

 Certification  of  Chief  Executive  Officer  pursuant  to  Section  302  of  the  
Sarbanes-Oxley Act of 2002.

 Certification  of  Chief  Financial  Officer  pursuant  to  Section  302  of  the  
Sarbanes-Oxley Act of 2002.

 Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 
906 of the Sarbanes-Oxley Act of 2002 for William J. Merritt.

 Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 
906 of the Sarbanes-Oxley Act of 2002 for Scott A. McQuilkin.

eXHIbIT  10.3

Second Amendment To Credit Agreement

SECOND  AMENDMENT TO  CREDIT  AGREEMENT  dated  as  of  December  28,  2007  (this 
“Amendment”),  among  INTERDIGITAL,  INC.,  a  Pennsylvania  corporation  (the “Borrower”),  
THE  SUBSIDIARY  GUARANTORS  PARTY  HERETO, THE  LENDERS  PARTY  HERETO  and  BANK 
OF AMERICA, N.A., as Administrative Agent and L/C Issuer.

WHEREAS,  the  Borrower,  the  Lenders  party  thereto,  the Administrative Agent  and  the  L/C 
Issuer are party to the Credit Agreement, as defined below; and

WHEREAS, the Borrower has requested certain amendments to the Credit Agreement;

NOW, THEREFORE, in consideration of the foregoing and the agreements contained herein, the 
parties hereby agree as follows:

1.  REFERENCE TO  CREDIT AGREEMENT.  Reference  is  made  to  that  certain  Credit Agreement 
dated as of December 28, 2005, as amended by the First Amendment, Consent and Joinder to 
Credit Agreement  dated  July  2,  2007  (as  so  amended,  and  as  in  effect  from  time  to  time,  the 
“Credit Agreement”), among the Borrower, the Lenders party thereto, the Administrative Agent 
and the L/C Issuer. Capitalized terms used and not defined herein are used with the meanings 
assigned to such terms in the Credit Agreement.

2.  AMENDMENTS.  Effective  as  of  the  date  hereof,  in  consideration  of  the  agreements 
contained  herein,  and  subject  to  the  terms  and  conditions  hereof,  the  Credit Agreement  is 
amended as follows:

(a)  Amendment to Section 1.01. The definition of “Applicable Rate” contained in Section 1.01 of 

the Credit Agreement is restated in its entirety as follows:

“Applicable Rate” means the following percentages per annum:

Applicable Rate for Base Rate Loans: 

Applicable Rate for LIBOR Loans:

0.00% 

0.65%

114

 
 
 
 
(b)  Amendment  to  Section  1.01. The  definition  of “Maturity  Date”  contained  in  Section  1.01  of 
the Credit Agreement is amended by deleting the date “December 28, 2007” and replacing 
the same with “December 28, 2009”.

(c)  Amendment  to  Section  2.09(a).  Section  2.09(a)  of  the  Credit Agreement  is  amended  by 
deleting the words and figure “two-tenths of one percent (0.20%)” and replacing the same 
with the words and figure “one-tenth of one percent (0.10%)”.

3. CONDITIONS PRECEDENT. The effectiveness of the amendments set forth in Section 2 hereof, 
is subject to the satisfaction or waiver in accordance with the Credit Agreement of each of the 
following conditions:

(a)  Documents. The Administrative Agent’s  receipt  of  the  following,  each  of  which  shall  be 
originals  or  telecopies  (followed  promptly  by  originals)  unless  otherwise  specified,  each 
properly executed by a Responsible Officer of the signing Loan Party, each dated the date of 
this Amendment and each in form and substance satisfactory to the Administrative Agent:

(i)  executed  counterparts  of  this Amendment,  sufficient  in  number  for  distribution  to  the 

Administrative Agent, each Lender and the Borrower;

(ii)  such  certificates  of  resolutions  or  other  action,  incumbency  certificates  and/or  other 
certificates  of  Responsible  Officers  of  the  Borrower  as  the Administrative Agent  may 
require evidencing the identity, authority and capacity of each Responsible Officer thereof 
authorized to act as a Responsible Officer in connection with this Amendment;

  (iii)  such documents and certifications as the Administrative Agent may reasonably require to 

evidence that the Borrower is duly organized or formed;

  (iv)  a  favorable  opinion  of  Dilworth  Paxson  LLP,  counsel  to  the  Loan  Parties,  addressed  to 
the Administrative Agent and each Lender, as to such matters concerning the Loan Parties 
and the Loan Documents as the Administrative Agent may reasonably request;

(v)  a certificate signed by a Responsible Officer of the Borrower certifying that the conditions 

specified in Sections 4(b) and 4(c) have been satisfied;

  (vi)  a  Solvency  Certificate,  in  form  reasonably  satisfactory  to  the  Administrative  Agent, 
executed  by  the  chief  financial  officer  of  the  Borrower  as  to  the  solvency  of  each  of  the 
Borrower  and  the  other  Loan  Parties,  in  each  case  before  and  after  giving  effect  to  this 
Amendment; and

  (vii)  such other assurances, certificates, documents, consents or opinions as the Administrative 

Agent, the L/C Issuer or the Required Lenders reasonably may require.

(b)  Consents.  All  governmental,  shareholder  and  other  consents  and  approvals  necessary 
in  connection  with  this Amendment  shall  have  been  received  and  shall  be  in  full  force 
and effect.

(c)  Representations and Warranties. All representations and warranties of the Loan Parties shall 

be true and correct in all material respects.

(d)  Execution. This Amendment shall have been executed and delivered by each Lender, the L/C 
Issuer (and the Administrative Agent shall have received a counterpart signature page from 
each of them), and the Administrative Agent.

(e)  Closing Fee. On the date hereof, the Borrower shall have paid to each Lender a closing fee 
equal  to  its Applicable  Percentage  times  ten  thousand  dollars  ($10,000).  Such  fee  shall  be 
fully earned when paid and shall not be refundable for any reason whatsoever.

115

 
 
 
4. NO DEFAULT; REPRESENTATIONS, WARRANTIES AND COVENANTS. The Loan Parties hereby 
represent, warrant, covenant and confirm that:

(a)  The  representations  and  warranties  of  the  Loan  Parties  contained  in Article V  of  the  Credit 
Agreement  and  in  the  other  Loan  Documents  are  true  on  and  as  of  the  date  hereof  as  if 
made on such date (except to the extent that such representations and warranties expressly 
relate to an earlier date).

(b)  Before  and  after  giving  effect  to  this Amendment,  the  Loan  Parties  are  in  compliance  with 
all of the terms and provisions set forth in the Credit Agreement on their part to be observed 
or performed thereunder.

(c)  Before and after giving effect to this Amendment, no Default or Event of Default shall have 

occurred and be continuing.

5. MISCELLANEOUS.

(a)  Except  to  the  extent  specifically  amended  hereby,  the  Credit  Agreement,  the  Loan 
Documents  and  all  related  documents  shall  remain  in  full  force  and  effect. Whenever  the 
terms  or  sections  amended  hereby  shall  be  referred  to  in  the  Credit  Agreement,  Loan 
Documents  or  such  other  documents  (whether  directly  or  by  incorporation  into  other 
defined terms), such terms or sections shall be deemed to refer to those terms or sections 
as amended by this Amendment.

(b)  This Amendment  may  be  executed  in  any  number  of  counterparts,  each  of  which,  when 
executed  and  delivered,  shall  be  an  original,  but  all  counterparts  shall  together  constitute 
one instrument.

(c)  This Amendment  shall  be  governed  by  the  laws  of  the  State  of  New York  and  shall  be 
binding upon and inure to the benefit of the parties hereto and their respective successors 
and assigns.

(d)  The Loan Parties agree to pay all reasonable expenses, including reasonable legal fees and 
disbursements,  incurred  by  the Administrative Agent  in  connection  with  this Amendment 
and the transactions contemplated hereby.

(e) This Amendment shall be considered a Loan Document for all purposes.

IN WITNESS WHEREOF,  the  parties  hereto  have  executed  this  Amendment  which  shall  be 
deemed to be a sealed instrument as of the date first above written.

BORROWER

InterDigital, Inc.

By: 

 /s/ William J. Merritt 
 William J. Merritt 
 President & Chief Executive Officer

116

 
 
The undersigned hereby acknowledge the within Amendment and confirm that their obligations 
under  the  Subsidiary  Guarantee  and  the  other  Loan  Documents  shall  remain  in  full  force  and 
effect notwithstanding such Amendment.

SUBSIDIARY GUARANTORS

InterDigital Communications, LLC   
/s/ William J. Merritt 
By: 
William J. Merritt 
President & Chief Executive Officer

InterDigital Facility Company 
/s/ Scott A. McQuilkin 
By: 
Scott A. McQuilkin 
President

InterDigital Finance Corporation 
By: 

/s/ Scott A. McQuilkin 
Scott A. McQuilkin 
President

InterDigital Advanced Technologies, Inc. 
By: 

/s/ William J. Merritt 
William J. Merritt 
President

InterDigital Technology Corporation 
/s/ William J. Merritt 
By: 
William J. Merritt 
President

IPR Licensing, Inc.
By: 

/s/ William J. Merritt 
William J. Merritt 
President

Tantivy Communications, Inc.
/s/ William J. Merritt 
By: 
William J. Merritt 
President

InterDigital Canada LTEE
By: 

/s/ William C. Miller 
William C. Miller 
President & Chief Executive Officer

InterDigital Patent Holdings, Inc.
By: 

/s/ William J. Merritt 
William J. Merritt 
President   

117

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Bank of America, N.A.
as Administrative Agent 

By: 

/s/ John B. Desmond 
John B. Desmond 
Managing Director

Bank of America, N.A.
as Lender and L/C Issuer

 By: 

/s/ John B. Desmond 
John B. Desmond 
Managing Director

Citizens Bank Of Pennsylvania
as Lender 

By: 

/s/ Daniel J. Astolf 
Daniel J. Astolf 
SVP

Subsidiaries of InterDigital, Inc.

Company    

InterDigital Canada Ltd. 
InterDigital Communications, LLC 
InterDigital Facility Company 
InterDigital Finance Corporation 
InterDigital Advanced Technologies, Inc. 
InterDigital Patent Holdings, Inc. 
InterDigital Technology Corporation     
IPR Licensing, Inc. 
Tantivy Communications, Inc. 

eXHIbIT  23.1

Jurisdiction/State of  
Incorporation or Organization

Delaware 
Pennsylvania 
Delaware 
Delaware 
Delaware 
Delaware 
Delaware 
Delaware 
Delaware 

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We  hereby  consent  to  the  incorporation  by  reference  in  the  Registration  Statements  on  Form 
S-8 (Nos. 333-66626, 333-85560, 333-63276, 333-56412, 33-61021, 333-94553, 33-89920, 33-89922, 
33-43256,  33-53660  and  33-53388)  and  Form  S-3  (No.  333-85692)  of  InterDigital,  Inc.  of  our 
report  dated  February  29,  2008  relating  to  the  financial  statements,  financial  statement 
schedule,  and  the  effectiveness  of  internal  control  over  financial  reporting,  which  appears  in 
this annual report.

PricewaterhouseCoopers LLP 
Philadelphia, Pennsylvania 
February 29, 2008

118

 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
   
 
 
 
   
 
 
   
 
 
   
 
 
   
 
   
 
 
 
 
   
 
 
 
   
 
 
eXHIbIT  31.1

Certification of President and Chief Executive Officer of InterDigital, Inc.

I, William J. Merritt, President and Chief Executive Officer, InterDigital, Inc., certify that:

1. I have reviewed this Annual Report on Form 10-K of InterDigital, Inc.;

2.  Based on my knowledge, this report does not contain any untrue statement of a material fact 
or  omit  to  state  a  material  fact  necessary  to  make  the  statements  made,  in  light  of  the 
circumstances  under  which  such  statements  were  made,  not  misleading  with  respect  to  the 
period covered by this report;

3.  Based on my knowledge, the financial statements, and other financial information included in 
this  report,  fairly  present  in  all  material  respects  the  financial  condition,  results  of  operations 
and cash flows of the registrant as of, and for, the periods presented in this report;

4.  The  registrant’s  other  certifying  officer  and  I  are  responsible  for  establishing  and  maintaining 
disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)), 
and  internal  control  over  financial  reporting  (as  defined  in  Exchange Act  Rules  13a-15(f)  and 
15d-15(f)) for the registrant and have:

a)  Designed such disclosure controls and procedures or caused such disclosure controls and 
procedures  to  be  designed  under  our  supervision,  to  ensure  that  material  information 
relating  to  the  registrant,  including  its  consolidated  subsidiaries,  is  made  known  to  us  by 
others  within  those  entities,  particularly  during  the  period  in  which  this  report  is  being 
prepared;

  b)  Designed such internal control over financial reporting, or caused such internal control over 
financial reporting to be designed under our supervision, to provide reasonable assurance 
regarding  the  reliability  of  financial  reporting  and  the  preparation  of  financial  statements 
for external purposes in accordance with generally accepted accounting principles;

c)  Evaluated  the  effectiveness  of  the  registrant’s  disclosure  controls  and  procedures  and 
presented in this report our conclusions about the effectiveness of the disclosure controls and 
procedures as of the end of the period covered by this report based on such evaluation; and

  d)  Disclosed in this report any change in the registrant’s internal control over financial reporting 
that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal 
quarter in the case of an annual report) that has materially affected, or is reasonably likely 
to materially affect, the registrant’s internal control over financial reporting; and

5.  The  registrant’s  other  certifying  officer  and  I  have  disclosed,  based  on  our  most  recent 
evaluation  of  internal  control  over  financial  reporting,  to  the  registrant’s  auditors  and  to  the 
audit  committee  of  the  registrant’s  board  of  directors  (or  persons  performing  the  equivalent 
functions):

a)  All  significant  deficiencies  and  material  weaknesses  in  the  design  or  operation  of  internal 
control  over  financial  reporting  which  are  reasonably  likely  to  adversely  affect  the 
registrant’s ability to record, process, summarize and report financial information; and

  b)  Any  fraud,  whether  or  not  material,  that  involves  management  or  other  employees  who 

have a significant role in the registrant’s internal control over financial reporting.  

Date: February 29, 2008 
William J. Merritt, President and Chief Executive Officer

119

 
 
 
 
eXHIbIT  31.2

Certification of Chief Financial Officer of InterDigital, Inc.

I, Scott A. McQuilkin, Chief Financial Officer, InterDigital, Inc., certify that:

1. I have reviewed this Annual Report on Form 10-K of InterDigital, Inc.;

2.  Based on my knowledge, this report does not contain any untrue statement of a material fact 
or  omit  to  state  a  material  fact  necessary  to  make  the  statements  made,  in  light  of  the 
circumstances  under  which  such  statements  were  made,  not  misleading  with  respect  to  the 
period covered by this report;

3.  Based on my knowledge, the financial statements, and other financial information included in 
this  report,  fairly  present  in  all  material  respects  the  financial  condition,  results  of  operations 
and cash flows of the registrant as of, and for, the periods presented in this report;

4.  The  registrant’s  other  certifying  officer  and  I  are  responsible  for  establishing  and  maintaining 
disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)), 
and  internal  control  over  financial  reporting  (as  defined  in  Exchange Act  Rules  13a-15(f)  and 
15d-15(f)) for the registrant and have:

  a)  Designed  such  disclosure  controls  and  procedures  or  caused  such  disclosure  controls  and 
procedures to be designed under our supervision, to ensure that material information relating 
to  the  registrant,  including  its  consolidated  subsidiaries,  is  made  known  to  us  by  others 
within those entities, particularly during the period in which this report is being prepared;

  b)  Designed such internal control over financial reporting, or caused such internal control over 
financial reporting to be designed under our supervision, to provide reasonable assurance 
regarding the reliability of financial reporting and the preparation of financial statements for 
external purposes in accordance with generally accepted accounting principles;

  c)  Evaluated  the  effectiveness  of  the  registrant’s  disclosure  controls  and  procedures  and 
presented in this report our conclusions about the effectiveness of the disclosure controls and 
procedures as of the end of the period covered by this report based on such evaluation; and

  d)  Disclosed in this report any change in the registrant’s internal control over financial reporting 
that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal 
quarter in the case of an annual report) that has materially affected, or is reasonably likely 
to materially affect, the registrant’s internal control over financial reporting; and

5.  The  registrant’s  other  certifying  officer  and  I  have  disclosed,  based  on  our  most  recent 
evaluation  of  internal  control  over  financial  reporting,  to  the  registrant’s  auditors  and  to  the 
audit  committee  of  the  registrant’s  board  of  directors  (or  persons  performing  the  equivalent 
functions):

  a)  All  significant  deficiencies  and  material  weaknesses  in  the  design  or  operation  of  internal 
control over financial reporting which are reasonably likely to adversely affect the registrant’s 
ability to record, process, summarize and report financial information; and

  b)  Any  fraud,  whether  or  not  material,  that  involves  management  or  other  employees  who 

have a significant role in the registrant’s internal control over financial reporting.

Date: February 29, 2008 
Scott A. McQuilkin, Chief Financial Officer

120

   
 
 
eXHIbIT  32.1

Certification pursuant to 18 U.S.C. Section 1350 
As adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

In  connection  with  the  accompanying Annual  Report  on  Form  10-K  of  InterDigital,  Inc.  (the 
“Company”) for the year ended December 31, 2007, as filed with the Securities and Exchange 
Commission  on  the  date  hereof  (the  “Report”),  I, William  J.  Merritt,  President  and  Chief 
Executive  Officer  of  the  Company,  hereby  certify,  pursuant  to  18  U.S.C.  Section  1350,  as 
adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1)  The  Report  fully  complies  with  the  requirements  of  Section  13(a)  or  15(d)  of  the  Securities 

Exchange Act of 1934, as amended; and

(2)  The information contained in the Report fairly presents, in all material respects, the financial 

condition and results of operations of the Company.

Date: February 29, 2008 
William J. Merritt, President and Chief Executive Officer

eXHIbIT  32.2

Certification pursuant to 18 U.S.C. Section 1350  
As adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

In  connection  with  the  accompanying  Annual  Report  on  Form  10-K  of  InterDigital 
Communications Corporation (the “Company”) for the year ended December 31, 2007, as filed 
with  the  Securities  and  Exchange  Commission  on  the  date  hereof  (the “Report”),  I,  Scott A. 
McQuilkin, Chief Financial Officer of the Company, hereby certify, pursuant to 18 U.S.C. Section 
1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1)  The  Report  fully  complies  with  the  requirements  of  Section  13(a)  or  15(d)  of  the  Securities 

Exchange Act of 1934, as amended; and

(2)  The information contained in the Report fairly presents, in all material respects, the financial 

condition and results of operations of the Company.

Date: February 29, 2008 
Scott A. McQuilkin, Chief Financial Officer

121

BOARD OF DIRECTORS

EXECUTIVE MANAGEMENT

Harry G. Campagna  
Chairman of the Board, InterDigital 
President, Chief Executive Officer  
and Chairman of the Board,  
Qualitex Co.

D. Ridgely Bolgiano
Chief Scientist & Vice President, 
InterDigital

Steven T. Clontz 
Chief Executive Officer and Director, 
StarHub, Ltd. 

William J. Merritt 
President, Chief Executive Officer  
and Director,  
InterDigital 

Ed Kamins
Chief Operational Excellence Officer,  
Avnet, Inc.

Robert S. Roath
Chief Financial Officer (retired),  
RJR Nabisco, Inc.  
Non-executive Chairman,  
Advisory Board to L.E.K. Consulting

Robert W. Shaner
President (retired),  
Cingular Wireless LLC Managing Partner,  
Performance Management LLC

William J. Merritt
President, Chief Executive Officer and Director

Scott A. McQuilkin
Chief Financial Officer 

Richard J. Brezski
Chief Accounting Officer

Gary D. Isaacs
Chief Administrative Officer

Brian G. Kiernan
Executive Vice President, Standards

Mark A. Lemmo
Executive Vice President,  
Business Development & Product Management

William C. Miller
Executive Vice President, Programs  
and Customer Support

James J. Nolan
Executive Vice President, Engineering

Janet Meenehan Point
Executive Vice President,  
Communications & Investor Relations

Lawrence F. Shay
President, InterDigital’s Patent Holding  
Subsidiaries, Executive Vice President of  
Intellectual Property and Chief IP Counsel  
for InterDigital, Inc.

Steven W.  Sprecher 
General Counsel and  
Government Affairs Officer

122

 
 
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2 0 0 7   a nnu a l r e port

This is a

green

ANNUAL REPORT
www.GreenAnnualReport.com

™

InterDigital, Inc. saved the following resources 
by producing this Green Annual Report™:

18.78 trees 
preserved for 
the future

54.23 lbs 
water-borne 
waste not 
created

7,977 gals 
wastewater 
flow saved

883 lbs solid 
waste not 
generated

1,738 lbs net 
greenhouse 
gases 
prevented

13,302,075 
million BTUs 
energy not 
consumed

XX%