Lucent Technologies has filed suit against Microsoft for patent infringement over technology used in its Xbox 360 game console.
At the center of the dispute is Patent No. 5,227,878, "Adaptive Coding and Decoding of Frames and Fields of Video," issued by the U.S. Patent and Trademark Office (USPTO) to Lucent on July 19, 1993, according to court papers filed by the company in U.S. District Court in San Diego. Lucent, which is in the process of merging with Alcatel SA, filed the papers on March 28.
Lucent claims Microsoft is using its patented technology in the Xbox 360's built-in MPEG-2 decoding capability. MPEG-2 is the latest industry standard for encoding video found on DVDs.
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