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

3131095, 340365R, G06F 314

Patent

active

039342441

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 indentification indicia attached adjacent to or at the selected key buttons. The light-emitting display means comprises a set of fluorescent luminescent alphanumeric display means each including a pair of side-by-side indicating units. The last-mentioned units are arranged so as to include an array of fluorescent segments formed on a common side of an insulating plate within a transparent envelope containing an ionizable gas. In operation, each pair of side-by-side indicating units is selectively activated by means of controller switch means connected thereto. Result: a luminescent two-character display in a fluorescent pattern of light corresponding to the alphanumeric indicia for which display is sought.

REFERENCES:
patent: 3566391 (1971-02-01), Lally
patent: 3670322 (1972-06-01), Mallebrein

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