Compensator for temperature-induced black level drift for use in

Details Compensator for temperature-induced black level drift for use in Compensator for temperature-induced black level drift for use in

1988-05-12

1990-07-31

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358166, 358174, 307310, 307491, 330289, H04N 552, H04N 557

Patent

active

049454145

ABSTRACT:
A temperature compensation network for an integrated circuit amplifier in a television receiver includes a thermistor mounted physically adjacent to, and electrically connected in parallel with the brightness control potentiometer, to the brightness control terminal of the integrated circuit. By mounting the thermistor in close proximity to the integrated circuit to be controlled, the thermistor is able to compensate for both self-heating of the integrated circuit and ambient temperature variations.

REFERENCES:
patent: 3651379 (1972-03-01), Moisand
patent: 4197557 (1980-04-01), Tuma et al.
patent: 4401898 (1983-08-01), Sommerer
patent: 4494145 (1985-01-01), Kokufukata et al.
patent: 4589022 (1986-05-01), Prince
patent: 4716315 (1987-12-01), Bell
patent: 4749889 (1988-06-01), Lagoni

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