| 摘要 |
<p>TELEVISION ADVERTISING EDITING SYSTEM A television advertising editing system including a detector for sampling the video signal in a television set to charge a capacitor negatively during which the system is inactive but which permits the capacitor to be charged positively in the brief period wherein the video signal is interrupted between the television program material and commercial material for providing triggering output voltage which permits a relay, connected to the television audio output, to be energized either discontinuing or diminishing the audio output for a predetermined period of time.</p> |
