A Monolithic Chroma Demodulator Integrated Circuit for Color Television Receivers

Early color demodulators were described and analyzed as narrow angle sampling devices. At this time, luminance as well as chrominance was applied to the demodulators since proper operation required primary color signal outputs. With the introduction of the concept of color-difference signals in 1950, it was recognized that the color demodulator operated as a product detector and that any good product detector would make a good demodulator.