Dynamic stroke priority generator for hybrid display

Details Dynamic stroke priority generator for hybrid display Dynamic stroke priority generator for hybrid display

1984-04-10

1987-01-06

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

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

340701, 340721, 340726, 340739, G09G 114

Patent

active

046350500

ABSTRACT:
A cathode ray tube provides a raster can symbol display superimposed on a stroke vector display, with selected regions of the stroke vector display preferentially masked in response to priority instructions. Stroke vector priority data is loaded into a full-field bit-mapped memory by a raster symbol generator and used to provide a stroke vector masking signal in synchronism with the picture elements of the raster scan. The system provides efficient generation of dynamic stroke priority areas by utilizing the repetitive nature of the raster scan to load the stroke priority full-field bit-mapped memory without requiring corresponding processor intervention.

REFERENCES:
patent: 3539860 (1970-11-01), Max et al.
patent: 4200866 (1980-04-01), Strathman
patent: 4412296 (1983-10-01), Taylor
patent: 4490797 (1984-12-01), Staggs et al.
patent: 4511892 (1985-04-01), Grothe

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