Color brightness control

Details Color brightness control Color brightness control

1975-09-19

1976-06-29

Richardson, Robert L.

Facsimile and static presentation processing

Static presentation processing

Attribute control

178DIG4, 313409, 313441, 315 13CG, 315 30, 315106, 316 27, 316 28, 358 10, 358 65, 358 74, H04N 918

Patent

active

039673146

ABSTRACT:
A means is disclosed for selectively increasing the emission of the several color guns of a color picture tube by placing a variable resistance between the control grid and the screen grid corresponding to each said color gun. This provides a source for increasing the voltage on the control grid of that color gun. As the voltage on the control grid is increased, the emission of that color gun is increased, thereby making it possible to blend the colors of the several color guns.

REFERENCES:
patent: 2845573 (1958-07-01), Macovski
patent: 2866124 (1958-12-01), Giuffrida et al.
patent: 2877923 (1959-03-01), Loughren
patent: 3301943 (1967-01-01), Hansen

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