Co-channel interference filter for television receiver

Details Co-channel interference filter for television receiver Co-channel interference filter for television receiver

H - Electricity

04

N

H04N 5/21 (2006.01)

Patent

CA 2058559

A television signal receiver includes a comb filter having a plurality of spaced nulls for reducing undesired co-channel interference. The depth of the nulls is established in response to a control signal representing the strength of the undesired co-channel interference to provide an optimized tradeoff between interference attenuation and signal-to-noise degradation. The control signal is preferably generated in response to a received reference signal such as a pseudo random channel equalization code. The output of the comb filter is characterized by an intersymbol interference component which is canceled is an intersymbol interference filter which is also responsive to the control signal.

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