Computer graphics processing and selective visual display system – Computer graphic processing system – Plural graphics processors
Patent
1998-11-09
2000-07-18
Mengistu, Amare
Computer graphics processing and selective visual display system
Computer graphic processing system
Plural graphics processors
345518, G09G 336
Patent
active
060914297
ABSTRACT:
A video/graphics memory system includes a memory device (30) having a memory core (14) and first and serial registers (16, 36). The memory device thus has a random-access port (24) for graphics data, a first serial access port (22) for image output to a display, and an auxiliary or second serial port (32) for input and output of video signal data. A single memory thus stores both video and graphics data, while the processor still has access to the random access port of the memory. Two video outputs can be provided simultaneously, or the data withdrawn through the auxiliary port can be subject to processing and then written back into the memory. In alternative arrangements, instead of using triple-ported RAM, the auxiliary port is provided by the use of external multiplexing circuitry.
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Ashton Martin
Deacon Graham
Metcalfe John Anthony
Yassaie Hossein
Imagination Technologies Limited
Mengistu Amare
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