PTO Preliminary Review Rejects 'Time Warp' Claims
by Todd Spangler -- Multichannel News, 8/10/2009 2:00:00 AM
In the latest wrinkle in the years-long legal fracas between Dish Network and TiVo, the U.S. Patent & Trademark Office last week issued a preliminary rejection of two claims in TiVo's so-called “Time Warp” patent.
TiVo said the patent office's action “is a preliminary finding, entered in the normal course before TiVo has had any opportunity to present its views.”
The patent in question is TiVo's “Multimedia Time Warping System” patent, U.S. Patent No. 6,233,389. Granted in May 2001, the patent describes a digital video recorder system that allows for simultaneous storage and playback of TV programming from a cable or satellite source.
In June, the U.S. District Court for the Eastern District of Texas ordered Dish to disable an estimated 4 million DVRs and pay TiVo $103 million in additional damages plus interest, after ruling the satellite-TV operator's workaround still infringed the Time Warp patent. Dish and EchoStar, which provides the DBS operator's technology, appealed that decision and the U.S. Court of Appeals for the Federal Circuit granted Dish's request to stay that order pending appeal.
The patent office, in its Aug. 3 re-examination, was acting on a request by Dish and EchoStar. The PTO said two claims in the '389 patent related to indexing “now appear to be rendered obvious” by prior art in two patents: 6,018,612, granted to Philips for a system that simultaneously stores and plays back a TV program; and 5,949,948, granted to iMedia for a compressed video-playback system.