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EchoStar sues TiVo, Humax over patents

The suit, filed on April 29, alleges that TiVo and Humax infringe on four EchoStar patents related to DVR technology.

EchoStar communications has filed a patent infringement lawsuit against digital video recorder company TiVo and electronics maker Humax. The suit, filed on April 29 in U.S. district court in Texas, alleges that TiVo and Humax infringe on four EchoStar patents related to DVR technology.

TiVo filed a suit against EchoStar in January of last year alleging infringement of its "multimedia time warping system" patent. That has been a slow-moving case, with jury selection set for Oct. 4. The lawsuit figures prominently in TiVo's efforts to enforce its patent portfolio.

Humax licenses TiVo's technology and manufactures and sells consumer electronics devices that include DVR features.