Alphanumeric display means for computer-linked typewriter consol

Details Alphanumeric display means for computer-linked typewriter consol Alphanumeric display means for computer-linked typewriter consol

1973-11-05

1976-01-20

Curtis, Marshall M.

Communications: electrical

Systems

Portable self-contained

340365R, 340380, G06F 314

Patent

active

039342476

ABSTRACT:
The present invention relates to an alphanumeric display unit means for improving the identification quantities at selected key buttons of a computer-linked typewriter console through usage of light-emitting identification indicia attached adjacent to or at the selected key buttons. Each light-emitting display is in matrix format consisting of a set of light-emitting diodes (LED's) arranged in orthogonal rows and columns. Energization of the LED's is by means of digital control circuitry. Result: a repetitive light-emitting display in matrix format in a configuration corresponding to an alphanumeric indicium for which display is sought.

REFERENCES:
patent: 3644922 (1972-02-01), James et al.
patent: 3670322 (1972-06-01), Mallebrein
patent: 3786499 (1974-01-01), Jankowski et al.

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