| 摘要 |
For horizontal sync information HD suitable for use in image processing means, e.g., means for TBC features, image compression recording/playback features, and LCD displaying features, it would be desirable that the time base fluctuations of the video input signal is faithfully reflected and that an interpolated HD generating feature is provided. Means for generating pulses generates the trailing edges of Csync as the trailing edge HD, and switches to an interpolated HD when a dropped pulse is detected after a few microseconds delay in the leading edge relative to the standard phase. Thus, the trailing edge HD is selected within a time base fluctuation on the order of a few microseconds and the time base fluctuation is faithfully reflected and interpolation features can also be provided.
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