Display control apparatus

Details Display control apparatus Display control apparatus

1996-03-14

2000-12-05

Chow, Dennis-Doon

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 87, 345 97, G09G 336

Patent

active

061573590

ABSTRACT:
A display control apparatus for a display device capable of performing updating of a display state for a display element subjected to a change in display includes a display data memory for storing display data, a display controller capable of sequentially reading out the display data stored in the memory and transferring the readout display data to the display device at a predetermined period and capable of performing a partial rewrite operation of the display data stored in the memory, and a rewrite detector for detecting an address for accessing the display data memory to cause the display controller to perform the partial rewrite operation. In addition, a transfer permitting unit reads the address detected by the rewrite detector and permits transfer of only the display data of the read address to the display controller.

REFERENCES:
patent: 4693563 (1987-09-01), Harada et al.
patent: 4964699 (1990-10-01), Inoue
patent: 5091723 (1992-02-01), Kanno et al.
patent: 5321418 (1994-06-01), Leroux
Old Thinking, New Methods and Television, Wireless World, Jan. 1969 issue.

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