| 摘要 |
<p>A signal processing circuit is provided which comprises: a plurality of cascaded delaying means 10, 12, 14, 16, 18 successively delaying input signals; a means 100 for detecting magnitude changes of the input signals; and selective coupling means 20, 22 responsive to the detecting means, for selectively coupling the inputs of certain of the delaying means to the inputs of selected others of the delaying means to enhance the transition times of input signals, thereby providing sharper edges at colour boundaries in a video signal. <IMAGE></p> |
