Motion-and nonstandard-adaptive three-dimensional YC separating

Details Motion-and nonstandard-adaptive three-dimensional YC separating Motion-and nonstandard-adaptive three-dimensional YC separating

1993-09-24

1994-08-16

Kostak, Victor R.

Television

Image signal processing circuitry specific to television

Including nonstandard signal detection controlling processing

348666, 348669, H04N 978

Patent

active

053391136

ABSTRACT:
In a three-dimensional YC separating circuit including an intra-field YC separating circuit and an inter-frame YC separating circuit, when an NTSC composite video signal is nonstandard and is used for a static image part of an image, a low pass filtering is performed upon a C signal of the inter-frame YC separating circuit, and the low pass filtered C signal is added to a C signal of the intra-field YC separating circuit. Then, a Y signal is obtained by subtracting the combination of the two C signals from the NTSC composite video signal.

REFERENCES:
patent: 5155582 (1992-10-01), Tokoi
patent: 5249037 (1993-09-01), Sugiyama

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