Garbling the identification of a key of a non-coded keyboard, an

Details Garbling the identification of a key of a non-coded keyboard, an Garbling the identification of a key of a non-coded keyboard, an

1991-07-08

1993-10-19

Yusko, Donald J.

Coded data generation or conversion

Bodily actuated code generator

Including keyboard or keypad

341 22, 380 46, H03M 1120

Patent

active

052549895

ABSTRACT:
A garbling method for 9 non-coded matrix keyboard, and the circuit for performing the method. includes

REFERENCES:
patent: 4262333 (1981-04-01), Horigome et al.
patent: 4405917 (1983-09-01), Chai
patent: 4599608 (1986-07-01), Matsuoka
patent: 4918445 (1990-04-01), Bower
patent: 4926173 (1990-05-01), Frielink
patent: 5025255 (1991-06-01), Mould
patent: 5059975 (1991-10-01), Nakatsuka
IBM Technical Disclosure Bulletin, vol. 25, No. 11A, Apr. 1983, pp. 5777-5778, New York, U.S.; P. Jeanniot et al., "Low-Cost Keyboard Scanner".

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