Bi-directional drive multiplexed display system

Details Bi-directional drive multiplexed display system Bi-directional drive multiplexed display system

1980-11-24

1983-07-19

Curtis, Marshall M.

Communications: electrical

Continuously variable indicating

With meter reading

340762, 340713, 34082582, G09G 314

Patent

active

043946534

ABSTRACT:
This system is for use with multicharacter displays. Each character being composed of a plurality of segments which are of a unidirectional type, e.g. an LED. Selected segments of each character are sequentially illuminated to display alphanumeric or other symbols. In this system the number of interconnections between the display and a drive circuit is greatly reduced. For example an 8-character display where each character has 7 segments would require only 8 leads.

REFERENCES:
patent: 3717867 (1973-02-01), Rosenzweig
patent: 3755806 (1973-08-01), Bunting
patent: 3803587 (1974-04-01), Mead
patent: 3918041 (1975-11-01), Mao
patent: 3925775 (1975-12-01), Gay
patent: 3943500 (1976-03-01), Buchanan
patent: 3990070 (1976-11-01), Spence
patent: 3993979 (1976-11-01), Mehlich
patent: 4106369 (1977-04-01), Pedersen
patent: 4188626 (1980-02-01), Frantz
patent: 4194199 (1980-03-01), Shepherd
patent: 4206458 (1980-06-01), Sado

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