Automatic white balance system and automatic white balance...

Details Automatic white balance system and automatic white balance... Automatic white balance system and automatic white balance...

2011-01-04

2011-01-04

Ye, Lin (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C348S231300, C348S231600, C382S162000, C382S167000

Reexamination Certificate

active

07864222

ABSTRACT:
An automatic white balance system according to an embodiment of the invention comprises a color separation and synchronization unit which has a line memory for generating a white-balance-adjusted YUV signal, a color judgment unit which judges whether or not a white balance adjustment is needed, a white balance adjustment gain computation unit which calculates a white balance adjustment gain on the basis of the result of the judgment at the color judgment unit and the white-balance-adjusted YUV signal, a reciprocal computation unit which outputs the reciprocal transformation value of the white balance adjustment gain, and a second multiplier which multiplies the white-balance-adjusted YUV signal by the reciprocal transformation value.

REFERENCES:
patent: 5298979 (1994-03-01), Kim
patent: 5398058 (1995-03-01), Hattori
patent: 6958773 (2005-10-01), Sato
patent: 7511739 (2009-03-01), Tsujino
patent: 7684122 (2010-03-01), Shirota
patent: 2005/0162532 (2005-07-01), Toyoda
patent: 2006/0290957 (2006-12-01), Kim et al.
patent: 4-304093 (1992-10-01), None

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