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TiVo files counter-suit against Cisco in patent war

TiVo is firing back at Cisco Systems, filing a countersuit against the DVR seller, days after Cisco sued TiVo over alleged patent infringement.

Cisco's original suit accused TiVo of failing to grant a broad license for its technology, because doing so would impede on TiVo's ability to bring, and ultimately settle, lawsuits over its patents, a key source of revenue.

Now, TiVo has countersued, accusing Cisco of infringing on four TiVo-owned patents with its DVRs, according to court documents. TiVo wants Cisco to pay compensatory and other damages.

TiVo and Cisco did not immediately return request for comment.

The countersuit was first reported by Reuters.

TiVo sells its own DVR boxes and licenses its technology to cable TV companies; Cisco sells DVRs through Scientific Atlanta to various cable companies. Cisco's court filing on May 30 said that TiVo asserted infringement of its patents against Cisco customers, including Verizon Communications, Reuters said.

In January, TiVo settled a patent lawsuit with AT&T, after the wireless operator agreed to pay at least $215 million (£140 million), as well as monthly licensing fees, to TiVo.

The popular digital video recorder company has also previously been involved in patent suits with Dish Network, EchoStar, Microsoft, Motorola and Time Warner Cable.