Apparatus for reducing noise in a video signal by processing a l

Details Apparatus for reducing noise in a video signal by processing a l Apparatus for reducing noise in a video signal by processing a l

1992-12-09

1994-07-26

Groody, James J.

Television

Image signal processing circuitry specific to television

Chrominance-luminance signal separation

348669, 348670, H04N 978

Patent

active

053330544

ABSTRACT:
A video signal processing apparatus capable of improving a signal to noise ratio of a video signal by providing for a first luminance/chrominance separation circuit for still pictures and a second luminance/chrominance separation circuit for moving pictures. Color disturbances on the screen can be avoided by switching between a parallel configuration and a serial configuration of the first and second separation circuits without generating differences in signal delay times.

REFERENCES:
patent: 4870481 (1989-09-01), Kawamata
patent: 5146318 (1992-09-01), Ishizuka
1989 National Convention Record of ITEJ; T. Miyazaki et al.; Jul. 1989, pp. 215-216.

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