Microsoft sues TiVo over vid, program display

Software giant claims DVR firm infringes on its patent

Microsoft is suing TiVo, claiming the DVR upstart is infringing on the giant software company's video-delivery and program-display technology.

TiVo is no stranger to such lawsuits, but usually it is the one doing the suing, not the other way around. It still is engaged in a years-long battle with Dish Network and EchoStar, for example, and it recently sued Verizon and AT&T.

In fact, the lawsuit filed by Microsoft is perceived by TiVo to be its way of defending AT&T, which uses Microsoft's technology for its U-Verse television service.

"These actions are part of a legal strategy to defend AT&T. We remain confident in our position that AT&T will be found to infringe on the TiVo patents asserted," TiVo said Wednesday.

In its complaint, Microsoft claims TiVo infringes on its patent for a "system for displaying programming information" and another patent for a "system and method for secure purchase and delivery of video content programs."

TiVo sued AT&T, as well as Verizon, in August, claiming both were infringing TiVo's DVR patents. TiVo has already won a similar case against Dish Network and EchoStar to the tune of more than $200 million, though a permanent injunction against Dish is still under appeal.
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