Paralleled output self-encoding keyboard

Details Paralleled output self-encoding keyboard Paralleled output self-encoding keyboard

1976-04-21

1978-05-09

Habecker, Thomas B.

Communications: electrical

Audible indication

Percussion-type sound producer

340365S, G08C 100

Patent

active

040889947

ABSTRACT:
A standard format keyboard provides a paralleled, binary-coded output corresponding to an alphanumeric character or a function when the appropriate key head is depressed. A signal is coupled through the key mechanism to a set of parallel conductors which are positioned to be approached by a portion of the key mechanism. The conductors have minimum or maximum areas corresponding to binary zeros and ones, whereby the level of signal coupled also corresponds to a binary code (such as ASCII) for the character or function key depressed.

REFERENCES:
patent: 3119996 (1964-01-01), Comstock
patent: 3399410 (1968-08-01), Ellis
patent: 3588875 (1971-06-01), Gabor
patent: 3778817 (1973-12-01), Silverberg
patent: 3973255 (1976-08-01), Freeman

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