Challenged claims of Entropic Communications LLC’s patent that describes wideband receiver systems that are capable of receiving multiple desired television channels are unpatentable as anticipated by and obvious over prior art, the Patent Trial and Appeal Board said, in an inter partes review by Comcast Cable Communications LLC. The board determined that the challenged claims are anticipated by and obvious over various combinations of prior art, including prior art that describes demodulator circuits in broadband communications, interactive television where the TV includes a set-top box, and a method and apparatus for circuit partitioning and trace assignment in circuit design.
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