On January 24, 2011, Microsoft accused TiVo, Inc. of infringement of four of its patents related to television set-top box software in two separate settings. A lawsuit in the Western District of Washington was filed concurrently with an ITC complaint seeking to prevent TiVo from importing set-top boxes and DVRs. Microsoft is accusing TiVo of using technology covered by the asserted Microsoft patents in its TiVo Premiere XL, TiVo HD and TiVo HD XL products.
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