Video System Sampling Phase Determination
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United States of America Patent
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Issued Date -
Mar 22, 2012
app pub date -
Sep 22, 2010
filing date -
Sep 22, 2010
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Abstract
A phase for an analog-to-digital converter sampling clock is determined. The analog-to-digital converter samples a video signal to generate pixel values. Differences of successive pixel values are compared to a threshold. The number of times the threshold is exceeded is counted for multiple phase values to create a phase profile. The threshold may be dynamic.
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