COMBINED PHASE SHIFT FILTER NETWORK IN A COLOR VIDEO SIGNAL PROCESSING SYSTEM

摘要

The combined phase shift and bandpass filter circuit in a receiver comprises an integral bandpass filter and phase shift network coupled between the output of the flesh tone correction network and the reference signal inputs of the modulators, and filters unwanted frequency components of the reference signal from the flesh correction network to provide phase shifting of the reference signal as appropriate for proper operation of the modulators.