InterDigital Sets Date for 2005 Annual Meeting of Shareholders

    Business Editors/Technology Writers

    KING OF PRUSSIA, Pa.--(BUSINESS WIRE)--April 5, 2005--InterDigital Communications Corporation (Nasdaq:IDCC), a leading architect, designer and provider of wireless technology and product platforms, announced today that its Board of Directors set the date for the Company's 2005 Annual Meeting of Shareholders. The meeting will be held on Thursday, June 2, 2005 at 2:00 p.m. Eastern Daylight Time at the Crowne Plaza Valley Forge in King of Prussia, Pennsylvania.
    Shareholders of record of InterDigital's common stock at the close of business on April 15, 2005 are entitled to notice of and to vote at the meeting.

    About InterDigital

    InterDigital architects, designs and provides advanced wireless technologies and products that drive voice and data communications. The Company offers technology and product solutions for mainstream wireless applications that deliver time-to-market, performance, and cost benefits, as well as product differentiation advantages, to its commercial and government/military customers. InterDigital has a strong portfolio of patented technologies covering 2G, 2.5G, 3G and 802 standards, which it licenses worldwide. For more information, please visit InterDigital's web site: www.interdigital.com. InterDigital is a registered trademark of InterDigital Communications Corporation.

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CONTACT: InterDigital Communications Corporation Media Contact: Dawn Goldstein, 610-878-7800 dawn.goldstein@interdigital.com or Investor Contact: Janet Point, 610-878-7800 janet.point@interdigital.com

KEYWORD: PENNSYLVANIA INDUSTRY KEYWORD: HARDWARE BANKING TELECOMMUNICATIONS SOFTWARE NETWORKING SOURCE: InterDigital Communications Corporation

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