Input device for electronic apparatus

Details Input device for electronic apparatus Input device for electronic apparatus

1981-09-21

1983-07-26

Crosland, Donnie L.

Communications: electrical

Audible indication

Percussion-type sound producer

340365R, 364709, G08C 900, G06F 1300

Patent

active

043957048

ABSTRACT:
An input device for electronic apparatus includes key signal output lines each having plural key switches connected thereto and circuitry for separating the key signals into specific key signals thereby identifying the plural key switches.

REFERENCES:
patent: 3940758 (1976-02-01), Margolin
patent: 4099246 (1978-07-01), Osborne et al.
patent: 4117542 (1978-09-01), Klausner et al.
patent: 4120036 (1978-10-01), Maeda et al.
patent: 4122526 (1978-10-01), Dlugos et al.

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