http://news.yahoo.com/s/pcworld/20060405/tc_pcworld/125317
At the center of the dispute is a patent on a technique for implementing video frames, issued by the U.S. Patent and Trademark Office to Lucent on July 19, 1993, according to legal papers filed by the company in U.S. District Court in San Diego. Lucent, which is in the process of merging with Alcatel, 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.
The patent in question is No. 5,227,878, described as "Adaptive Coding and Decoding of Frames and Fields of Video." The same patent has previously been the subject of legal dispute between Lucent and Microsoft. In a 2003 suit, the tables were turned, with Microsoft suing Lucent in an effort to obtain a judgment of noninfringement, according to court papers. The company was successful; a judge last year granted summary judgment in Microsoft's favor because of a typographical error in the patent.
At the center of the dispute is a patent on a technique for implementing video frames, issued by the U.S. Patent and Trademark Office to Lucent on July 19, 1993, according to legal papers filed by the company in U.S. District Court in San Diego. Lucent, which is in the process of merging with Alcatel, 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.
The patent in question is No. 5,227,878, described as "Adaptive Coding and Decoding of Frames and Fields of Video." The same patent has previously been the subject of legal dispute between Lucent and Microsoft. In a 2003 suit, the tables were turned, with Microsoft suing Lucent in an effort to obtain a judgment of noninfringement, according to court papers. The company was successful; a judge last year granted summary judgment in Microsoft's favor because of a typographical error in the patent.