METHOD AND APPARATUS FOR AUTO-GENERATION OF HORIZONTAL SYNCHRONIZATION OF AN ANALOG SIGNAL TO A DIGITAL DISPLAY
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United States of America Patent
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app pub date -
Dec 9, 2008
filing date -
Sep 20, 2001
priority date (Note) -
Abandoned
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Abstract
A method, apparatus, and system for determining a horizontal resolution and a phase of an analog video signal arranged to display a number of scan lines each formed of a number of pixels is described. A number of initialization values are set where at least one of the initialization values is a current horizontal resolution and then a difference value for each immediately adjacent ones of the pixels is determined. Next, an edge flag value based upon the difference value is stored in at least one of a number of accumulators such that when at least one of the accumulators has a stored edge flag value that is substantially greater than those stored edge flag values in the other accumulators, then the horizontal resolution is set to the current resolution.
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