A Simplified Cross-Color Suppression Circuit for Color Television Receivers

In a color television system the frequency components of the luminance and the chrominance signals consist of line spectra, the component frequencies of which are separated by harmonics of the line frequency. By being interleaved betwee. n the luminance frequencies, the chrominance frequencies share the passband near its high frequency end. The detected luminance signal in a receiver contains the color subcarrier, which produces an image with crawling dots and edges.