Computer graphics processing and selective visual display system – Computer graphics display memory system – Graphic display memory controller
Reexamination Certificate
2005-02-08
2005-02-08
Chauhan, Ulka J. (Department: 2676)
Computer graphics processing and selective visual display system
Computer graphics display memory system
Graphic display memory controller
C345S503000, C345S545000
Reexamination Certificate
active
06853381
ABSTRACT:
In accordance with the present invention, a write behind controller receives control information from a display device controller in order to determine a current location available in a frame buffer for receiving information. Write accesses of the frame buffer by a rendering engine are prohibited if the access is to an area below a currently available location of the frame buffer. Generally, the rendering engine will be stalled when the requested address location has not yet displayed its data. Subsequently, the write access to the frame buffer is allowed when location has been rastered.
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Doyle James
Glen David L. J.
Grigor Gordon
Laksono Indra
Yee Kin Man William
ATI International SRL
Chauhan Ulka J.
Vedder, Price, Kaufman & Kammholz PC
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