Method of and apparatus for utilizing video buffer in a multi-purpose fashion to extend the video buffer to multiple windows
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United States of America Patent
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Nov 27, 2018
Grant Date -
Jun 5, 2014
app pub date -
Feb 7, 2014
filing date -
Mar 27, 2003
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Abstract
The present invention includes a method and device that allows efficient mixing of multiple video images with a graphics screen while utilizing only one video buffer. The present invention partitions the sole video buffer, pre-scales the plurality of video images and inserts them into the partitioned video buffer in a predetermined range of buffer addresses. The present invention mixes the partitioned video including the pre-scaled video images with the graphics screen to produce a video display including both a video screen and a graphics screen.
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