Microsoft sues TiVo, backs AT&T in patent suit

01/20/2010 | Wall Street Journal, The · Bloomberg

Microsoft has backed AT&T in its defense of a patent lawsuit brought by TiVo and filed its own claim against the pioneer DVR maker. In a federal court complaint filed this week, Microsoft sought to block TiVo from using certain technology because of patent infringements. Last week, Microsoft sought to enter a patent case TiVo brought against AT&T's U-verse service, arguing the telecom licensed the technology through Microsoft's Mediaroom IPTV platform.

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Wall Street Journal, The · Bloomberg

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