White balance control circuit

Details White balance control circuit White balance control circuit

H - Electricity

04

N

350/42, 350/44

H04N 9/73 (2006.01)

Patent

CA 1123510

ABSTRACT OF THE DISCLOSURE A white balance control circuit for an encoded composite color television signal is disclosed in which three primary color signals of green (G), blue (B) and red (R) are matrixed to be mixed color signal components, color difference signals: of R-G and B-G are provided from the mixed color signal components, and gain control circuits provided on the signal transmission paths of two primary color signals on R and B are so controlled in their gains that the color difference signals become zero, when the white balance adjustment is done. -1-

322812

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