General purpose keyboard for central processing unit with microp

Details General purpose keyboard for central processing unit with microp General purpose keyboard for central processing unit with microp

1987-11-06

1989-11-07

Yusko, Donald J.

Coded data generation or conversion

Bodily actuated code generator

Including keyboard or keypad

341 22, 341 31, 250221, G06F 302

Patent

active

048795577

ABSTRACT:
A general purpose keyboard for a central processing unit with microprocessor 9, characterized in that it includes at least one set 300 of variable allocation keys, a removable booklet 2 comprising at least two pages 20, 21 specifying allocation of the keys, photoelectric receiver R0, R1 for detecting the position of the pages 20, 21 of the booklet 2 and a keyboard processing unit 40 for supplying, in response to the detection of the position of the pages 20, 21 of the booklet 2 and to the activation of a key 32 of the keyboard belonging to the central processing unit or set 300, a different ASCII code according to the position of the pages of the booklet 2.

REFERENCES:
patent: Re31649 (1984-08-01), Brodbeck
patent: 3560964 (1968-12-01), Bedell et al.
patent: 3600592 (1971-08-01), Mahan
patent: 3879722 (1975-04-01), Knowlton

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