System and method for efficient computer workstation screen updates
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United States of America Patent
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-
Feb 13, 1996
Issued Date -
N/A
app pub date -
Aug 25, 1994
filing date -
Sep 15, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A local computer 132 is connected to a remote computer 136 over a network for collaborative processing, whereby changes to the screen of the local computer are to be reflected on the screen of the remote computer. A hook routine 110 is used to intercept requests to update the screen of the local computer, and the area of the screen to be updated is determined from the request. Another routine then obtains the bit map for the area of the screen which has been updated, and only this bit map is transmitted to the remote computer, rather than one corresponding to the whole screen.
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