Dot character display apparatus

Details Dot character display apparatus Dot character display apparatus

1986-01-21

1988-06-14

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

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

340735, 340745, 340790, G09G 100

Patent

active

047515082

ABSTRACT:
A dot character display apparatus includes a control circuit for transferring data corresponding to character body and upper and lower symbols from first to third character generators to image buffers, a drive circuit for driving a dot matrix display section on the basis of the data stored in the image buffers. The dot matrix display section has an upper display area to display the upper symbol, a central display area to display the charcter body, and a lower display area to display the lower symbol. The drive circuit has a first drive section to drive the central display area of the dot matrix display section in accordance with data indicative of the character body from the first character generator, and a secod drive section to drive the upper and lower display areas of the dot matrix display section in accordance with data representative of the upper and lower symbols from the second and third character generators.

REFERENCES:
patent: 3711419 (1975-10-01), Bates et al.
patent: 4163229 (1979-07-01), Bodin et al.
patent: 4204208 (1980-05-01), McCarthy
patent: 4228507 (1980-10-01), Leban
patent: 4443794 (1984-04-01), Sakurai
patent: 4511267 (1985-04-01), Pokorny et al.
patent: 4584573 (1986-04-01), Ito
patent: 4600920 (1986-07-01), Makita
patent: 4603330 (1986-07-01), Horne et al.
patent: 4621340 (1986-11-01), Pokorny et al.

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