Patent ID: 7821362
Filing Date: 2010-10-26
Classification: H03J,H04B

Abstract:
1. A signal communication system, coupled to a signal source that receives a broadcast spectrum from an electrically or optically conductive medium, to output a filtered representation of a broadcast-frequency video signal corresponding to a selected channel of a plurality of channels of the broadcast spectrum, the system comprising: frequency-selective filter circuitry, coupled to the signal source, to receive the broadcast-frequency video signal and to output a filtered representation of the broadcast-frequency video signal, the frequency-selective filter circuitry including: control signal generator circuitry, coupled to the frequency-selective filter circuitry, to generate the control signal having a voltage amplitude which is associated with the selected channel, the control signal generator circuitry including: wherein the control signal generator circuit responsively adjusts the voltage amplitude of the control signal when the feedback signal is different from a signal which is associated with the amplitude of the control signal.