Video-signal-processing device, imaging apparatus using the...

Television – Camera – system and detail – Combined image signal generator and general image signal...

Reexamination Certificate

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Details

C348S222100, C348S229100, C348S230100

Reexamination Certificate

active

07965324

ABSTRACT:
A video-signal-processing device has luminance conversion section that performs level compression on three input primary-color signals of a color video signal at a same luminance adjustment compression ratio with a hue and a saturation of the color video signal being kept constant, thereby generating three compressed primary-color signals. The device also has saturation conversion section that performs level conversion on the three compressed primary-color signals by using a saturation compression ratio if a maximum level of at least one of the three compressed primary-color signals exceeds a first level. The saturation conversion section sets the saturation compression ratio by using a minimum level one of the three compressed primary-color signals.

REFERENCES:
patent: 5555031 (1996-09-01), Van Rooij
patent: 6111607 (2000-08-01), Kameyama
patent: 6762793 (2004-07-01), Fukushima et al.
patent: 6972793 (2005-12-01), Kameyama
patent: 7447356 (2008-11-01), Ohsawa et al.
patent: 3509448 (2004-01-01), None

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