Video processing circuits and methods using same buffer for...

Details Video processing circuits and methods using same buffer for... Video processing circuits and methods using same buffer for...

2007-08-06

2011-11-01

Kostak, Victor (Department: 2422)

Television

Image signal processing circuitry specific to television

Chrominance-luminance signal separation

C348S624000, C348S908000

Reexamination Certificate

active

08049820

ABSTRACT:
A video processing circuit capable of processing a composite signal and a non-composite signal, includes: a line buffer; a frame buffer; a video decoder for decoding the composite signal by utilizing the line buffer and the frame buffer as temporary buffers of the video decoder; a cross color suppressor for performing color suppression on the non-composite signal by utilizing the line buffer and the frame buffer as temporary buffers of the cross color suppressor; and a path controller, coupled to the video decoder and the cross color suppressor, for coupling the line buffer and the frame buffer to the video decoder or the cross color suppressor when utilizing the line buffer and the frame buffer is required.

REFERENCES:
patent: 4706112 (1987-11-01), Faroudja et al.
patent: 5305120 (1994-04-01), Faroudja
patent: 5502509 (1996-03-01), Kurashita et al.
patent: 5519454 (1996-05-01), Willis
patent: 5926228 (1999-07-01), Jeon et al.
patent: 6091458 (2000-07-01), Jeon et al.

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