Computer system architecture that incorporates display memory in

Details Computer system architecture that incorporates display memory in Computer system architecture that incorporates display memory in

1996-03-04

1998-05-05

Kim, Matthew M.

Computer graphics processing and selective visual display system

Computer graphic processing system

Interface

345512, 345507, 711106, 711147, G06F 1316

Patent

active

057482039

ABSTRACT:
A computer architecture that incorporates display memory into system memory is disclosed, which comprises a memory, a memory controller and a display controller. Both of the memory controller and the display controller are employed to control access of the memory device having system data and display data stored therein. Built-in signals and an arbiter are provided between the controllers to arbitrate the priorities of the two controllers to access the memory device. Furthermore, request and grant signals are used to initiate the refresh of the main memory to maintain data therein. The control circuits of the two controllers to the memory device are connected to each other to prevent signals contention.

REFERENCES:
patent: 4953101 (1990-08-01), Kelleher et al.
patent: 5335322 (1994-08-01), Mattison
patent: 5450542 (1995-09-01), Lehman et al.

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