Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
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
Groddy James J.
Matsushita Electric - Industrial Co., Ltd.
Vu Kim Yen
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