Apparatus for carrying out Y/C separation

Details Apparatus for carrying out Y/C separation Apparatus for carrying out Y/C separation

1991-02-04

1992-04-07

Groddy, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 26, H04N 978

Patent

active

051032970

ABSTRACT:
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 performed 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.

REFERENCES:
patent: 4972259 (1990-11-01), Motoe et al.
patent: 4994906 (1991-02-01), Moriwake
patent: 5014118 (1991-05-01), Shirai

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