Warm-up compensation system for picture tube

Details Warm-up compensation system for picture tube Warm-up compensation system for picture tube

1977-10-03

1978-12-12

Murray, Richard

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

H04N 318

Patent

active

041298853

ABSTRACT:
An "instant play" type device is described for quickly bringing the video display of a television receiver to normal luminance. The device develops a start-up control voltage of an initially high magnitude and a nominal control voltage of lesser magnitude for successive application to the brightness control electrode of the cathode ray tube. When the television receiver is energized, the start-up control voltage is applied to develop a normal luminance display on the cathode ray tube after which the control electrode of the cathode ray tube is automatically switched to the nominal control voltage.

REFERENCES:
patent: 3908159 (1975-09-01), Griffey
patent: 3956669 (1976-05-01), Del Ciello

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