Case: Patents/Obviousness (P.T.A.B.)

Some challenged claims of Cobblestone Wireless LLC’s patent directed to a wireless communication system and method that transmits signals simultaneously over a communication channel at different RF center frequencies are unpatentable as obvious over prior art, the Patent Trial and Appeal Board said, in an inter partes review by Qualcomm Incorporated. The board held that some challenged claims are obvious over various combinations of prior art, including prior art that discloses a multi-carrier transmitter capable of transmitting on one or multiple frequency channels simultaneously, a predistorter that compensates for a distortion of a power amplifier for amplifying power of high ...