Luminance signal/chrominance signal separation device, and...

Details Luminance signal/chrominance signal separation device, and... Luminance signal/chrominance signal separation device, and...

2006-02-14

2006-02-14

Hsia, Sherrie (Department: 2614)

Television

Image signal processing circuitry specific to television

Chrominance-luminance signal separation

C348S664000

Reexamination Certificate

active

06999130

ABSTRACT:
A luminance signal/chrominance signal separation apparatus is provided with a detector for detecting diagonal components of a luminance signal from a composite video signal, wide-band pass filters, and narrow-band pass filters, wherein band pass filters to be connected to a three-line chrominance separation circuit are selected according to the amount of diagonal components of the luminance signal, thereby reducing cross color and improving resolution.

REFERENCES:
patent: 5249040 (1993-09-01), Sugiyama
patent: 5786872 (1998-07-01), Miyazaki et al.
patent: 6809778 (2004-10-01), Shibutani et al.
patent: 63-206091 (1988-08-01), None
patent: 6-303636 (1994-10-01), None
patent: 2001-95010 (2001-04-01), None

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