Input device for electronic apparatus

Details Input device for electronic apparatus Input device for electronic apparatus

1981-09-22

1984-09-04

Crosland, Donnie L.

Communications: electrical

Audible indication

Percussion-type sound producer

340365S, 364709, G08C 900, G06F 100

Patent

active

044700377

ABSTRACT:
An input device for electronic apparatus includes key signal output lines each having plural key switches connected thereto and circuitry for identifying the same key signal under the control of plural keys.

REFERENCES:
patent: 3195124 (1965-07-01), Gebhardt
patent: 3623588 (1971-11-01), Prodan
patent: 3863060 (1975-01-01), Rode et al.
patent: 3976840 (1976-08-01), Cleveland et al.
patent: 4042439 (1977-08-01), Pounds
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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