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At&t Warns Apple, Others, Of Patent Infringement


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AT&T possesses several patents related to video compression, which the company says are an essential component of the MPEG-4 video technology. In a bid to drive its global licensing program, AT&T has targeted Apple Computer, Inc., CyberLink Corp., DivX, Inc., InterVideo, Inc., and Sonic Solutions as unlicensed companies whose products and software utilize the MPEG-4 technology.


Representatives from the companies named in AT&T's letter, including Apple, said they weren't aware of any notification from AT&T about possible infringement of its patents. "We believe that we have all necessary rights and licenses with respect to all of our products," a spokesman for Sonic Solutions replied.







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