Synthesis of vertical blanking signal
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United States of America Patent
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Feb 23, 2010
Grant Date -
Dec 16, 2004
app pub date -
Dec 23, 2003
filing date -
Jun 13, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A method of controlling transmission of data from a computer to a video client via an interface device, comprising: reading a register on the interface device to obtain a value indicating temporal proximity to an occurrence of a vertical blanking interval occurs, the value increased incrementally until a vertical blanking interval occurs, and then being reset; deriving a time value, the time value indicating the occurrence of a vertical blanking interval; sending an interrupt to a processor on the computer at the occurrence of the vertical blanking interval; and invoking code in response to an occurrence of the video blanking interval.
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