Electronic keyboard for one-hand operation

Details Electronic keyboard for one-hand operation Electronic keyboard for one-hand operation

1990-09-14

1992-02-11

Oberley, Alvin E.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

341 22, 400489, G09G 302

Patent

active

050879103

ABSTRACT:
The electronic keyboard for one-hand operation, more particularly for generating alphanumeric and analog characters and/or processing instructions, comprises a plurality of keys (2, 4) and an electronic circuit connected electrically to said keys in order to interpret the state of the keys (2, 4) and deliver a signal indicative thereof, said electronic circuit also being connected to a display (6) and to external connection. It comprises at least two keys (2) associated with the fingers of a hand other than the thumb and a key (4) associated with the thumb, each key (2) associated with a finger of the hand other than the thumb being adapted to assume three different states in response to said finger and the thumb key (4) can assume five different states in response to the thumb (see FIG. 1).

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"Owerty is Obsolete", Interface Age, Circle Inquiry No. 32, Jan. 1978, by Sid Own, pp. 56-59.
"Semi-Captive Keyboard", Xerox Disclosure Journal, vol. 1, No. 2, Feb. 1976, by D. C. Kowalski, p. 85.
W. C. McCormack, "Single Keybutton Four-Way Switch", IBM Technical Disclosure, vol. 21, No. 8, Jan. 1979, p. 3261.
"Keyboard for Handheld Computer", IBM Technical Disclosure, vol. 27, No. 10A, Mar. 1985.

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