Caching fonts for improved bandwidth of transmitted text

Computer graphics processing and selective visual display system – Computer graphics display memory system – For storing compressed data

Reexamination Certificate

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Details

C345S557000, C345S530000

Reexamination Certificate

active

07046250

ABSTRACT:
Caching fonts on a display computer may be performed in order to reduce network bandwidth utilization and/or to improve CPU usage. Text commands may be recorded when they are executed to create a portion of a graphics image. These text commands may be used to update a data structure with information, and this data structure may be used to more efficiently transmit the text portions of the graphics image. A caching mechanism may be used wherein the font utilized by the text command is stored in the cache if a compatible font does not already exist in the cache. Once the font has been cached, subsequent text commands utilizing the font may be executed with a dramatic reduction in network bandwidth.

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