Character display system

Details Character display system Character display system

1978-11-02

1980-05-13

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

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

340724, 340750, 340789, 340801, G06F 314

Patent

active

042031028

ABSTRACT:
A display system is described in which left to right or right to left mode may be displayed without character inversion. A read/write store is added between a display buffer and a CRT. This store stores one complete scan line of character slice bytes in sequence. The bytes may be read out either in a normal sequence or in a reversed sequence for display. As bytes are read in parallel, the orientation of individual characters is unchanged.
One line of control data or selected lines may always be displayed in left to right mode, while the remainder of the display is in right to left mode.

REFERENCES:
patent: 3665450 (1972-05-01), Leban
patent: 3786478 (1974-01-01), King, Jr.
patent: 3809629 (1974-04-01), Walsh et al.
patent: 3846784 (1974-11-01), Sinclair
patent: 3895374 (1975-07-01), Williams
patent: 3918038 (1975-11-01), Stonelake
patent: 3976982 (1976-08-01), Eiselen
patent: 4054948 (1977-10-01), Grier
patent: 4146877 (1979-03-01), Zimmer
patent: 4153940 (1979-05-01), Grier

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