Computer graphics processing and selective visual display system – Display driving control circuitry – Physically integral with display elements
Patent
1993-09-01
1996-11-12
Saras, Steven
Computer graphics processing and selective visual display system
Display driving control circuitry
Physically integral with display elements
345203, G09G 500
Patent
active
055744834
ABSTRACT:
A display control unit has a display data memory such as a video RAM for storing display data displayed in pixels of a display unit and has a control section for repeatedly reading the display data stored to the display data memory when the display data are outputted to the display unit. The control section has a bit judging section for judging whether all bits of the display data read at one time from the display data memory are the same or not and has a status memory for storing judging results of the bit judging section and a bit kind of the display data judged as the same bits. The control section confirms registered contents of the status memory and reads the bit kind registered to the status memory instead of the display data stored to the display data memory when all the bits of the display data are the same. In accordance with this structure, power consumption of the display control unit is reduced by reducing the number of reading operations of the display data from the video RAM. A display control method for controlling an operation of the display control unit is also shown.
REFERENCES:
patent: 4150397 (1979-04-01), Russell
patent: 4232376 (1980-11-01), Dion et al.
patent: 4414628 (1983-11-01), Ahuja et al.
patent: 4694347 (1987-09-01), Ito
patent: 4701026 (1987-10-01), Yazaki et al.
patent: 4792981 (1988-12-01), Cahill, III et al.
patent: 4823108 (1989-04-01), Pope
patent: 4864290 (1989-09-01), Waters
patent: 4870479 (1989-09-01), Dubner
patent: 5111317 (1992-05-01), Coulson
patent: 5363500 (1994-11-01), Takeda
Ricoh & Company, Ltd.
Saras Steven
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