EXHIBIT 99.1

      InterDigital Issues Revenue Guidance for Third Quarter 2007

    KING OF PRUSSIA, Pa.--(BUSINESS WIRE)--Aug. 14,
2007--InterDigital, Inc. (NASDAQ: IDCC) today announced that it
expects total third quarter 2007 recurring revenue for patent
licensing and technology solutions to be in the range of approximately
$53.5 million to $54.5 million. This range does not include any
potential impact from new agreements that may be signed during third
quarter 2007 or additional royalties identified in audits regularly
conducted by the company.

    Scott McQuilkin, InterDigital's Chief Financial Officer, noted,
"We are pleased with the positive trend of our recurring revenue,
reflecting solid sales of 3G products by our licensees."

    About InterDigital

    InterDigital designs, develops and provides advanced wireless
technologies and products that drive voice and data communications.
InterDigital is a leading contributor to the global wireless standards
and holds a strong portfolio of patented technologies which it
licenses to manufacturers of 2G, 2.5G, 3G, and 802 products worldwide.
Additionally, the company offers baseband product solutions and
protocol software for 3G multimode terminals and converged devices,
delivering time-to-market, performance and cost benefits. For more
information, visit the InterDigital website: www.interdigital.com.

    This press release contains forward-looking statements regarding
our current beliefs, plans, and expectations as to our third quarter
2007 recurring and non-recurring revenues. Words such as "expects,"
"potential, "trend" or similar expressions are intended to identify
such forward-looking statements.

    Forward-looking statements are subject to risks and uncertainties.
Actual outcomes could differ materially from those expressed in or
anticipated by such forward-looking statements due to a variety of
factors including, but not limited to: (i) timely receipt and final
reviews of licensee royalty reports and related matters; (ii) disputes
surrounding the terms of our license agreements (iii) changes in the
market share and sales performance of our licensees, delays in product
shipments by our licensees, and any delay in receipt of quarterly
royalty reports from our licensees; (iv) amounts of royalties payable
following routine audits, if any, and the timely receipt of such
amounts; (v) unanticipated acceleration in the execution of patent
license and/or technology solution agreements during third quarter
2007; and, (vi) changes in performance against technology milestone
deliverables in our technology agreements.

    InterDigital is a registered trademark of InterDigital, Inc.

    CONTACT: InterDigital, Inc.
             Media Contact:
             Jack Indekeu, +1 (610) 878-7800
             jack.indekeu@interdigital.com
             or
             Investor Contact:
             Janet Point, +1 (610) 878-7800
             janet.point@interdigital.com