Accelerated replication of multiple computer displays
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United States of America Patent
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-
Dec 30, 1997
Grant Date -
N/A
app pub date -
Sep 28, 1993
filing date -
Mar 19, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A system wherein multiple computers engage in a video conference. The invention creates a common visual image which is displayed by all computers. However, the invention does not distribute a bit map of the image to all computers. Instead, the invention distributes the commands from which the image is created. Further, the distributed commands rely on data structures, which define parameters such as pen color, background color, line width, etc. The data structures are stored in each computer. When a data structure is changed, the invention does not immediately inform all other computers of the change, but waits until necessary.
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