A clamp signal generation-control circuit includes a clamp signal controller for discriminating the existence of a sync on green signal and a separate sync signal supplied from a video card to a monitor to output a control signal according to the discrimination, and a clamp signal generator for automatically...http://www.google.fr/patents/US5502498?utm_source=gb-gplus-shareBrevet US5502498 - Clamp signal generation-control circuit and a method therefor
Clamp signal generation-control circuit and a method therefor