COMB FILTER WITH BYPASS MODE

摘要

A video signal processing system for recovering a plurality of frequency interleaved information components modifies a comb filtering function during a particular mode of operation to increase the resolution associated with the recovered information components. For example, during a first mode of operation, comb filtering operates to recover luminance and chrominance components of a color television signal. During a second mode of operation corresponding to absence of a chrominance component, the comb filtering function is modified by bypassing portions of the filtering function. During the second mode of operation, substantially the full bandwidth of a luminance component is recovered.