Raster display controller with variable spatial resolution and p

Details Raster display controller with variable spatial resolution and p Raster display controller with variable spatial resolution and p

1986-08-25

1988-11-08

Curtis, Marshall M.

Communications: electrical

Continuously variable indicating

With meter reading

340750, 340747, 358283, G09G 116

Patent

active

047836520

ABSTRACT:
A display controller provides multiple different resolutions by selectively enabling different combinations of shift registers between the frame buffer and video look-up tables (VLTs). The VLTs are partitioned, with different partitions being programmed identically in accordance with the values of only the number of address bits which will be active from the shift registers at any one time.

REFERENCES:
patent: 4236228 (1980-11-01), Nagashima et al.
patent: 4500875 (1985-02-01), Schmitz
patent: 4683466 (1987-07-01), Holtey et al.

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