Multi-level raster scan display system

Details Multi-level raster scan display system Multi-level raster scan display system

1983-05-25

1985-11-19

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

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

340721, 340744, 340747, 340703, G09G 100

Patent

active

045545383

ABSTRACT:
A raster scan display system for overlapping images. A non-interfering erasure and relocation capability is included by providing a multi-level digital signal specifying the status of each pixel of the display and the number of display images which overlap at each pixel. For each image to be displayed the associated stored digital word is incremented one count. For each image to be erased the associated stored digital word is decremented one count. An image or a portion of an image is relocated by decrementing the data word associated with the current location and incrementing the data word associated with the new location. Expanding the data storage permits the same technique to be applied to multi-color display systems.

REFERENCES:
patent: 3976982 (1976-08-01), Eiselen
patent: 4103331 (1978-07-01), Thacker
patent: 4125873 (1978-11-01), Chesarek
patent: 4197590 (1980-04-01), Sukonick et al.

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