TiVo is aiming to protect its digital video recorder turf.
The San Jose, Calif.-based DVR company filed a lawsuit against rival Sonicblue on Jan. 23 alleging that Sonicblue infringed on a broad patent TiVo received in May of last year.
The patent, which TiVo filed for in 1998, is described in the patent application as an "invention allowing the user to store selected television broadcast programs while the user is simultaneously watching or reviewing another program."
The suit is part of an ongoing feud between the two companies over the nascent digital video recorder market. Both companies are competing for licensing partners as well as consumers.
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