color-phase detector

color-phase detector

[′kəl·ər ‚fāz di′tek·tər]
(electronics)
The color television receiver circuit that compares the frequency and phase of the incoming burst signal with those of the locally generated 3.579545-megahertz chroma oscillator and delivers a correction voltage to a reactance tube to ensure that the color portions of the picture will be in exact register with the black-and-white portions on the screen.