Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1985-05-21
1987-05-19
Masinick, Michael A.
Facsimile and static presentation processing
Static presentation processing
Attribute control
H04N 973
Patent
active
046672249
ABSTRACT:
A white balance correcting device which is constructed to reduce at a time of high luminance input the low frequency luminance signal component included in either an input low frequency luminance signal or in a color difference signal of a gain-control matrix circuit which is generating the color difference signal upon receiving a color signal and low luminance signal, so as to thereby produce a precise color balance of a video picture at the time of a high luminance input.
REFERENCES:
patent: 4219841 (1980-08-01), Nishimura
patent: 4395730 (1983-07-01), Shen
patent: 4562459 (1985-12-01), Sokei
Masinick Michael A.
Matsushita Electric - Industrial Co., Ltd.
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