Apparatus for carrying out y/c separation

Details Apparatus for carrying out y/c separation Apparatus for carrying out y/c separation

H - Electricity

04

N

350/34

H04N 7/08 (2006.01) H04N 7/088 (2006.01) H04N 9/78 (2006.01)

Patent

CA 2035794

ABSTRACT OF THE DISCLOSURE An apparatus for carrying out the Y/C separation of a composite color video signal used in a television receiver, a video cassette recorder and other and for carrying out the Y/C separation of various signals superposed on the video signal in the vertical retrace interval thereof, without distorting the various signals is disclosed in which apparatus a switching operation is preformed so that the composite color video signal itself is used as a luminance signal in the teletext period of the vertical retrace interval of the composite color video signal, and a Y/C separator of the non-correlation type is switched to operate in the remaining period of the vertical retrace interval.

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