Digital raster display generator for moving displays

Details Digital raster display generator for moving displays Digital raster display generator for moving displays

1975-11-11

1978-01-24

Curtis, Marshall M.

Communications: electrical

Systems

Portable self-contained

178 30, G06F 314

Patent

active

040706621

ABSTRACT:
The display generator comprises a map memory having a plurality of addressable locations corresponding respectively to a plurality of incremental display cell areas of the display screen. The apparatus further includes a symbol memory having a plurality of storage matrices for storing the respective plurality of patterns and symbols to be selectively written into the incremental display area cells to thereby form a display picture. The display raster is generated by digital circuits which sequentially address the map memory locations. The map memory words stored in the respective locations each includes a symbol memory address. The digital raster generation circuits are also coupled to the symbol memory for addressing the line of the symbol selected by the map memory for the line by line writing of the selected symbols in the cells of the display.

REFERENCES:
patent: 3388391 (1968-06-01), Clark
patent: 3396377 (1968-08-01), Strout
patent: 3426344 (1969-02-01), Clark
patent: 3678497 (1972-07-01), Watson et al.
patent: 3893100 (1975-07-01), Stein

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