EchoStar vs. TiVo vs. EchoStar vs...

Proving that turnabout is fair play, EchoStar is suing TiVo for patent infringement. This is after TiVo sued EchoStar for patent infringement in January of 2004 over TiVo's "Multimedia time warping system," a suit that is still going on.

EchoStar said that, on April 29, one of its units filed a lawsuit in the United States District Court for the Eastern District of Texas against TiVo and the U.S. unit of South Korea's Humax, alleging infringement of patents related digital video recorder (DVR) technology.

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In it counter suit, EchoStar charged TiVo and Humax are infringing by making devices that use technology patented by EchoStar between 1998 and 2003, including on called "Interruption Tolerant Video program Viewing."