Auxiliary memory in a video display unit of the raster scan type

Details Auxiliary memory in a video display unit of the raster scan type Auxiliary memory in a video display unit of the raster scan type

1983-06-10

1986-05-27

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

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

340750, 340747, 340748, G09G 100

Patent

active

045918503

ABSTRACT:
A visual (or video) display unit of the raster scan type has a symbol memory, where the dot patterns of the available symbols are stored, and a refresh memory, where information is stored which identifies the symbols present on the image in question and their positions on the image. An auxiliary memory constitutes a simplified reproduction of the refresh memory, for example with 1 bit for each word in the refresh memory. For each symbol on the image in question, the auxiliary memory defines, on the one hand, the element in the image which is written first during generation of the image, and on the other hand a definition element. In the place in the refresh memory, which corresponds to the position of the definition element in the image, there is stored a code which identifies the symbol.

REFERENCES:
patent: 3426344 (1969-02-01), Clark
patent: 3609743 (1971-09-01), Lasoff et al.
patent: 3928845 (1975-12-01), Clark
patent: 3979742 (1976-09-01), Kolb et al.
patent: 4117473 (1978-09-01), Habeger, Jr. et al.
patent: 4163229 (1979-07-01), Bodim et al.
patent: 4246578 (1981-01-01), Kawasaki et al.
patent: 4357604 (1982-11-01), Imazeki et al.
patent: 4357671 (1982-11-01), Miller
patent: 4392130 (1983-07-01), Lundstrom et al.
patent: 4419662 (1983-12-01), Puskas et al.
patent: 4445115 (1984-04-01), Nudgard
patent: 4459677 (1984-07-01), Porter et al.
patent: 4498081 (1985-02-01), Fukushima et al.

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