Display system and memory architecture and method for displaying images in windows on a video display
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United States of America Patent
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Apr 18, 1989
Issued Date -
N/A
app pub date -
Mar 17, 1988
filing date -
May 2, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for displaying information within windows which are capable of overlapping on a video display of a computer controlled video display system, wherein said windows are defined by an operating environment on the video display independently of the writing of said video display data comprising the steps of: providing a memory means within said computer including at least one pseudo-screen buffer memory means for storage of display data; writing display data to said at least one pseudo-screen buffer memory means without calling said operating environment; storing current display data in said pseudo-screen buffer memory means; determining the visible display area of said windows on said video display for video display data associated with said windows; and displaying said video display data associated with said windows from said pseudo screen buffer memory means on said visible display area of said windows.
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