# ITU-T 656 question

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#### Caj Zell

Jan 1, 1970
0
Hello,

I have a question regarding digital encoding of an analog video
signal.

Assume you are having a video ADC that is outputting a 656 stream. If
the analog signal is slightly "faster" than it should be, say the line
period is shorter than 64us, what will a normal video ADC do?
Will it pad the blanking interval with zeroes, when it detected a
hsync slightly earlier than it expected?

Caj Zell

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