| 摘要 |
<p>SO1244 VIDEO SIGNAL PROCESSING CIRCUIT A video signal processing circuit particularly suited for eliminating undesirable picture vibration in the stop-motion, or slow-motion mode of a video reproducing apparatus includes a source of a video signal, a delay line for delaying the video signal one line interval and thereby providing a delayed version of the video signal, a switching circuit connected with the source of the video signal and with the delay line for alternately applying the video signal and the delay version thereof to an output, and a control circuit connected to the switching circuit for causing the switching circuit to switch over at a sampling rate which is sufficient to sample the video signal a plurality of times during each line interval. One embodiment of the video signal processing circuit is adapted to process a digitized composite color video signal formed of digital words each composed of a predetermined number of bits which are processed in parallel form, and the sampling rate at which the switching circuit is switched over is identical with the rate at which the digital words are provided at the source of the video signal.</p> |
