Y/C separation circuit for video use having separating means for

Details Y/C separation circuit for video use having separating means for Y/C separation circuit for video use having separating means for

1994-03-23

1995-07-11

Groody, James J.

Television

Image signal processing circuitry specific to television

Chrominance-luminance signal separation

348505, H04N 978

Patent

active

054325650

ABSTRACT:
A Y/C separation circuit includes a first adder by which a carrier-multiplexed composite video signal is produced by multiplexing a color sub-carrier signal which is in synchronization with a color burst signal on a composite video signal during a vertical blanking period. The carrier-multiplexed composite video signal inputted to a 1H delay line and outputted from the 1H delay line. The carrier-multiplexed composite video signals at the input and the output of the 1H delay line are inputted to a second adder, and a subtracter, respectively. A luminance signal component and a chrominance signal component are respectively outputted from the second adder and the subtracter.

REFERENCES:
patent: 3679816 (1972-07-01), Avins et al.
patent: 5132784 (1992-07-01), Hague et al.
patent: 5267027 (1993-11-01), Ugaki et al.
patent: 5353066 (1994-10-01), Lee

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