| 摘要 |
An electronic signal processor is provided with means of accepting a video signal and a reference signal. A periodicity indicator signal, generated from the reference signal, is incorporated into the video signal. The periodicity indicator signal is inhibited during intervals when synchronization signals are present in the video signal. The resultant video signal can be utilized in the same manner as a conventional video signal. In a second embodiment, two or more reference signals are employed to produce two or more periodicity indicator signals.
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