Memory circuit for generating liquid crystal display characters

Details Memory circuit for generating liquid crystal display characters Memory circuit for generating liquid crystal display characters

1981-12-09

1983-11-08

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

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

340784, 340735, G09G 336

Patent

active

044145454

ABSTRACT:
A liquid crystal display character generator circuit comprises a first RAM for temporarily storing information to be displayed on a liquid crystal display unit, a ROM for storing standard character patterns corresponding to the information to be displayed, a second RAM operable to store special character patterns corresponding to the information to be displayed, and a data selector for enabling the designation of an address in one of the ROM and the second RAM in accordance with the information stored in the first RAM.

REFERENCES:
patent: 3778810 (1973-12-01), Hayashi
patent: 3996584 (1976-12-01), Plager
patent: 4122533 (1978-10-01), Kubinak
patent: 4283724 (1981-08-01), Edwards

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