Color corrector for a composite color video signal

摘要

An improved color corrector is disclosed which is of the type that separates the color burst component from a color video signal and uses the color burst in a phase locked loop to generate a continuous color subcarrier signal that is used to provide frequency and phase error correction of the chroma component of the color video signal. The corrector uses a wide bandwidth phase locked loop and has means for adding a color corrected chroma component from a present horizontal line of the video signal to a color corrected chroma component delayed by one horizontal line to cancel other circuit induced phase errors that are present due to the use of the wide bandwidth phase locked loop and the gating of the color burst thereto using a horizontal sync related burst gate signal.