Keyboard for use in an information processing device

Details Keyboard for use in an information processing device Keyboard for use in an information processing device

1988-08-15

1990-11-20

Burr, Edgar S.

Typewriting machines

Key-board or key lever-actuating mechanism

Key-board having multiple-character, multiple-movement keys

400489, 400472, B41J 528

Patent

active

049714651

ABSTRACT:
A keyboard operable with one hand includes a plurality of keys arranged on a keyboard base so as to be opposite to the fingertips of the operator's hand in a naturally spread state and each having switching contacts which are selectively engaged by moving the operator's fingers. Therefore, it is possible to impart many kinds of key signals with a simple operation.

REFERENCES:
patent: 3022878 (1962-02-01), Seibel et al.
patent: 4201489 (1980-05-01), Zapp
patent: 4564751 (1985-03-01), Alley et al.
patent: 4833446 (1989-05-01), Eilam et al.
IBM Technical Disclosure, A. Uchiyama, "KANA Keyboard with Palm Rest" Feb. 1983, pp. 4915-4916, vol. 25, No. 9.
Xerox Technical Disclosure Journal, D. C. Kowalski, "Semi-Captive Keyboard" Feb. 1976, p. 85, vol. 1, No. 2.
IBM Technical Disclosure Bulletin, D. C. Conway, "Digital X Typewriter Keyboard", pp. 4187-4190, vol. 18, No. 12.

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