Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements
Patent
1996-01-19
1997-10-14
Tung, Kee M.
Computer graphics processing and selective visual display system
Display driving control circuitry
Controlling the condition of display elements
395516, 395510, 345187, 345200, 36523005, G06F 1206
Patent
active
056780354
ABSTRACT:
An image data memory control unit for storing the image data of a plurality of planes in a multiport video memory including a memory component having a random port for reading and writing data therethrough in response to input address signals and a register component having a serial port for outputting data that have been stored in the memory component serially in sequence from the lower address in synchronicity with input clock signals, comprises an image processor for outputting address signals in which the most significant bit portion is a plane recognition bit portion that recognizes the plurality of planes, and for outputting the image data of the plurality of planes therethrough to the multiport video memory in response to the address signals; and address conversion unit for converting the address signals output from the image processor so that the plane recognition bit portion is moved to the least significant bit portion, and the remaining bits are shifted to higher significant bits following the least significant bit portion.
REFERENCES:
patent: 4980765 (1990-12-01), Kudo et al.
patent: 5319603 (1994-06-01), Watanable et al.
Komatsu Ltd.
Tung Kee M.
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