Computer graphics processing and selective visual display system – Computer graphics display memory system – Addressing
Reexamination Certificate
2005-08-30
2005-08-30
Tung, Kee M. (Department: 2676)
Computer graphics processing and selective visual display system
Computer graphics display memory system
Addressing
C345S531000, C711S005000, C714S764000, C714S768000
Reexamination Certificate
active
06937247
ABSTRACT:
A memory control device and a method of controlling memory transfer. The memory control device has a command decoding device, a compare logic device, a decision device, a frame buffer decode device, a frame buffer range device and a command routing device. The frame buffer range device is used to determine if the access address pointed to a graphic memory. The command-decoding device and the compare logic device are used to determine if the access address points to a memory bank range having an error-check-correction function. The decision device is used to determine if the access address points to a memory bank range having error-check-correction function but outside the graphic memory range. If the access address points to a memory bank range having error-check-correction function but outside the graphic memory range, a memory access command with error checking and correction of data is executed.
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Chang Eric Yean-Liu
Huang Hsiang-I
J.C. Patents
Via Technologies Inc.
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