A method and apparatus for isolating a noise intolerant device, e.g., a phase-lock loop of a tuner within a television receiver, from source of noise. In one embodiment, the apparatus isolates a phase-lock loop integrated circuit (IC) from the bus, by providing an isolation buffer that allows the receiver...http://www.google.de/patents/US7847866?utm_source=gb-gplus-sharePatent US7847866 - Method and apparatus for isolating IIC bus noise from a tuner in a television receiver
