Controlling the overlay of multiple video signals
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United States of America Patent
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Feb 3, 2009
Grant Date -
Jun 23, 2005
app pub date -
Dec 22, 2003
filing date -
Dec 22, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In one embodiment the present invention includes receiving an alpha component of a graphics signal, receiving a primary video signal, and receiving a secondary video signal. A portion of the alpha component is extracted and applied to the extracted portion to render the secondary video signal over the primary video signal.
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