Color temperature selection circuitry having color matrix correc

Details Color temperature selection circuitry having color matrix correc Color temperature selection circuitry having color matrix correc

1993-02-04

1994-09-06

Groody, James J.

Television

Image signal processing circuitry specific to television

Color balance or temperature

348655, H04N 964

Patent

active

053452755

ABSTRACT:
In a television receiver including a feature allowing a user to select a color temperature at which whites will be produced on a display screen, circuitry is provided for altering the gain of the red and blue kine driver stages and simultaneously automatically altering the gain of the R-Y and B-Y color difference signal amplifier, to correct for errors which would otherwise be introduced by adversely altering the B-Y/R-Y ratio.

REFERENCES:
patent: 3919712 (1975-11-01), Izumisawa et al.
patent: 4365265 (1982-12-01), Isujita et al.
patent: 5132825 (1992-07-01), Miyadera
Relevant portion of CTC-170 Schematic.

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