Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source
Patent
1997-01-22
1999-09-14
Saras, Steven J.
Computer graphics processing and selective visual display system
Display driving control circuitry
Display power source
315384, 348569, G06G 104
Patent
active
059530049
ABSTRACT:
A video muting control device using a microcomputer, comprising a video mute key for generating a video mute command upon activation by a user; a microcomputer connected to the video mute key, the microcomputer generating a blanking control signal in response to an input of the video muting command, a preamplifier for receiving RGB video signals, the preamplifier generating an amplified video signal in response to a clamping signal and a contrast control signal, and a video mute circuit for muting a video display in response to the blanking control signal by grounding any one of the RGB video signals, the clamping signal and the contrast control signal.
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patent: 5463289 (1995-10-01), Song
patent: 5493340 (1996-02-01), Kim
Bushnell Esq. Robert E.
Lim John G.
Samsung Electronics Co,. Ltd.
Saras Steven J.
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