Vizio Fights Off 'Troll’ In Video Patent Suit

A California federal judge found Vizio Inc. did not infringe two video signal processing patents held by Oplus Technologies Ltd., marking the television manufacturer’s 10th win in a string of suits brought by so-called patent trolls, Vizio said Wednesday.

U.S. District Judge Mariana Pfaelzer said Oplus’ allegations that Vizio infringed the video signal processing patents by testing the televisions it manufactured and by selling those televisions to retail companies lacked sufficient evidence.

“Evidence that a user manual exists and that an unknown party tested the television...

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