Graphic display system with secondary pixel image storage

Details Graphic display system with secondary pixel image storage Graphic display system with secondary pixel image storage

1987-10-26

1989-08-29

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340721, 340724, 340799, G09G 116

Patent

active

048621552

ABSTRACT:
An improved graphics display system includes a picture processor for processing display lists defining graphic designs, the display lists comprising pixel data and/or instructions for generating pixel data. The system further includes a display controller which stores pixel data in a frame buffer memory and controls a display of graphic designs in accordance therewith. When a display list defining a graphic design is changed but the design is not to be displayed, the display list is processed by the picture processor, but the output pixel data generated by the picture processor is routed not to the display controller but to a control processor which stores the generated pixel data in a second memory. When the design is thereafter to be displayed, the control processor generates a secondary display list including the pixel data stored in the second memory to the picture processor. The picture processor then forwards the pixel data included in the secondary display list to the display controller for storage in the frame buffer memory so as to initiate display of the graphic design.

REFERENCES:
patent: 4555775 (1985-11-01), Pike
patent: 4679038 (1987-07-01), Bantz et al.
patent: 4700181 (1987-10-01), Maine et al.
patent: 4760390 (1988-07-01), Maine et al.
patent: 4761642 (1988-08-01), Huntzinger

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