Data processing system and apparatus having first and second gra

Details Data processing system and apparatus having first and second gra Data processing system and apparatus having first and second gra

1995-03-09

1998-10-06

Brier, Jeffery

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345123, G09G 336, G09G 534

Patent

active

058184104

ABSTRACT:
A data processing apparatus includes an image information storage memory and a controller for controlling the image information storage memory. The storage memory stores first graphic event data in accordance with a demand for displaying from a pointing device at a certain cycle and stores graphic event data in accordance with a demand for displaying a scrolling in a window on a display panel. When display requests of the first graphic event data and the second graphic event data occur simultaneously, and when no change is caused in data relating to position from the pointing device, storage of the second graphic event data into the memory is allowed and storage of the first graphic event data is performed. The image information controlled by the controller is displayed on a display panel.

REFERENCES:
patent: 4655561 (1987-04-01), Kanbe et al.
patent: 4689741 (1987-08-01), Redwine et al.
patent: 4691200 (1987-09-01), Stephany
patent: 4693563 (1987-09-01), Harada et al.
patent: 4922241 (1990-05-01), Inoue et al.
"Scan Line Scrolling Partitioned Display", IBM Technical Disclosure Bulletin, vol. 30, No. 10, pp. 455-458 (Mar. 1988).

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