Keyboard

Details Keyboard Keyboard

1981-11-13

1984-04-17

Groody, James J.

Communications: electrical

Audible indication

Percussion-type sound producer

340365S, 400479, 400486, G06F 302

Patent

active

044437897

ABSTRACT:
Disclosed herein is an electrical keyboard having five keys arranged conveniently for the fingers of an operators hand, a memory to store the signals from each key, logic circuit to instruct said stored data after release of the last of said keys and an encoder to receive said stored signals and produce electrical output signals corresponding to readable characters; each character signal requiring a single operation of a unique combination of said input keys for production of said signal.

REFERENCES:
patent: 2581665 (1952-01-01), Jarmann
patent: 2682046 (1954-06-01), Hack
patent: 3022878 (1962-02-01), Seibel et al.
patent: 3428747 (1969-02-01), Alferieff
patent: 3675513 (1972-07-01), Flanagan et al.
patent: 3833765 (1974-09-01), Hilborn et al.
patent: 3892915 (1975-07-01), Budworth et al.
European Scientific Notes, Apr. 30, 1978, ESN32-4, pp. 149-151.
"Alpha-Dot: A New Approach to Direct Computer Entry of Battlefield Data", U.S. Army, Jan. 1974.

Affiliated with

Also associated with

Rating

Keyboard does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Keyboard, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Keyboard will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-97811