Graphic display with right-protected areas
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United States of America Patent
Stats
-
Dec 10, 1991
Grant Date -
N/A
app pub date -
Mar 27, 1986
filing date -
Mar 27, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The speed at which a display screen is updated is increased by updating only those areas of the screen that have changed since the last update. This is accomplished by dividing the screen display elements into a grid of contiguous areas, and defining those areas which changing video information as unprotected areas and other areas as protected areas. As new images are generated, the memory containing information displayed in the protected areas is protected from updating while that in the unprotected area is not protected.
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Family
International Classification(s)
Cited Art Landscape
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