Crt drive control circuit

Details Crt drive control circuit Crt drive control circuit

H - Electricity

04

N

350/79, 350/82,

H04N 5/59 (2006.01)

Patent

CA 1220268

ABSTRACT OF THE DISCLOSURE A CRT drive control circuit for automatically limiting beam current when it is too large. A brightness reduction control and a contrast reduction control are alternately applied in accordance with a dark level detection of a video signal.

460833

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