Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2006-05-16
2006-05-16
Jankus, Almis R. (Department: 2672)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
Reexamination Certificate
active
07046227
ABSTRACT:
A system and method for continuously tracing transfer rectangles for performing image data transfers includes a display controller with control logic, a rectangle module, and a coordinates module. The rectangle module detects write operations to on-screen data in a video memory, and then updates a primary transfer rectangle during a normal mode to include pixel data from the foregoing write operations. The coordinates module stores the primary transfer rectangle for performing a current transfer operation. The coordinates module enters a pause mode before initiating the current transfer operation, and retains the primary transfer rectangle during the pause mode. The coordinate module also stores a secondary transfer rectangle formed during the pause mode by detecting the foregoing write operations. The controller logic instructs the coordinates module to resume the normal mode after the current transfer operation concludes. The coordinates module then replaces the primary transfer rectangle with the secondary transfer rectangle for performing a subsequent transfer operation.
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Chan Victor Ga-Kui
McFadyen Doug
Soroushi Atousa
Jankus Almis R.
Watson Mark P.
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