Method for increasing the video throughput in computer systems

Details Method for increasing the video throughput in computer systems Method for increasing the video throughput in computer systems

1993-05-28

1996-08-06

Hjerpe, Richard

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

395165, G09G 102

Patent

active

055438229

ABSTRACT:
A method and system for increasing the throughput of video input and output operations in a computer system is provided. In a memory mapped video environment the preferred embodiment increases the speed of video access by redirecting the video I/O to system RAM and updating the actual memory mapped video asynchronously. Thus full CPU speed is attained in assembling the images, while the screen image is copied to video memory in the background and while the CPU is idle.

REFERENCES:
patent: 4656596 (1987-04-01), Thanden et al.
patent: 4777486 (1988-10-01), Abraham et al.
patent: 4803476 (1989-02-01), Knapton et al.
patent: 5103499 (1992-04-01), Miner et al.
patent: 5250940 (1993-10-01), Valentatem et al.
patent: 5335322 (1994-08-01), Mattison
patent: 8361387 (1994-11-01), Millar et al.

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