Video circuit controlling brightness and/or saturation

Details Video circuit controlling brightness and/or saturation Video circuit controlling brightness and/or saturation

1994-02-02

1995-07-11

Kostak, Victor R.

Television

Image signal processing circuitry specific to television

Brightness control

348645, H04N 557

Patent

active

054325668

ABSTRACT:
A video circuit provided with corrective control data generator which generates respective control data for correcting and controlling the brightness and/or saturation of the picture displayed on a display unit in accordance with the average brightness level of the luminance signal separated from the video signal. The brightness and/or saturation of the picture are thus corrected and controlled on the basis of the corrective control data.

REFERENCES:
patent: 4980756 (1990-12-01), Lagoni
patent: 4982287 (1991-01-01), Lagoni
patent: 5191427 (1993-03-01), Hwang
patent: 5200829 (1993-04-01), Lagoni
patent: 5291295 (1994-03-01), Srivastava
patent: 5294986 (1994-03-01), Tsuji et al.

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