Computer graphics processing and selective visual display system – Display peripheral interface input device – Light pen for fluid matrix display panel
Patent
1992-05-29
1996-12-03
Chin, Tommy P.
Computer graphics processing and selective visual display system
Display peripheral interface input device
Light pen for fluid matrix display panel
345213, G09G 300
Patent
active
055812783
ABSTRACT:
A display control system provided between a computer and a display device includes a plurality of display control LSI's for data transfer and also displays image data stored in a plurality of image memories having planes on the display device by controlling plane groups which include one or more planes. Each display control LSI includes an enable generator for generating a synchronization enabling signal in accordance with LSI designation information and an input/output buffer for outputting a synchronization signal in response to the enabling signal. A synchronization signal from one of the plurality of display control LSI's designated by the LSI designation information is supplied to the plurality of display control LSI's inclusive of the designated display control LSI through a signal line to allow the plurality of display control LSI's to operate with each other, thereby making it possible to produce and display data to be simultaneously on the display device.
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patent: 4904990 (1990-02-01), Takeda et al.
patent: 4933879 (1990-06-01), Ando et al.
patent: 4999620 (1991-03-01), Ishii
patent: 5021775 (1991-06-01), Babin
Ito Kazuko
Onishi Katsuyoshi
Shibata Hisaaki
Sugai Kazuo
Watanabe Ken
Au A.
Chin Tommy P.
Hitachi , Ltd.
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