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Sony DVRs Infringe Patent Held By Command Audio, Court Rules

Law360 (June 22, 2004, 12:00 AM EDT) -- Sony’s digital video recorders infringe a patent held by Command Audio Corp., a U.S. District Court has ruled.

The lawsuit is the latest legal onslaught in the fiercely competitive market for DVRs, set-top boxes that record television programming onto a built-in hard drive.

The U.S. District Court for the Northern District of California found that Sony products that incorporate digital video recorders (DVRs) infringe Command Audio's U.S. Patent No. 6,330,334. The infringing products include DVRs Sony has made under license from TiVo, and those in its...
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