Electronic equipment having a key input function

Details Electronic equipment having a key input function Electronic equipment having a key input function

1986-03-06

1987-07-21

Scott, J. R.

Electricity: circuit makers and breakers

Multiple circuit control

Multiple switch

200159B, 361418, H01H 1370, H05K 710

Patent

active

046819878

ABSTRACT:
Electronic equipment having a key input function comprises a circuit structure having an electrical circuit including a plurality of key input contacts formed thereon, a frame arranged on the surface of the circuit structure, and key input buttons arranged one for each of the key input contacts. The frame has holes for each of the key input contacts, an insulative layer adjoining the electrical circuit and a metal layer which is in contact with the electrical circuit, which metal layer is exposed at the holes so that the key input buttons, which fit into the holes, selectively and electrically connect the key input contacts to the metal layer.

REFERENCES:
patent: 2918287 (1959-12-01), Rosenblum et al.
patent: 3684842 (1972-08-01), Boulanger
patent: 3749859 (1973-07-01), Webb et al.
patent: 3971902 (1976-07-01), Wulf et al.
patent: 3977074 (1976-08-01), Furnival
patent: 4096577 (1978-06-01), Ferber et al.
patent: 4158230 (1979-06-01), Washizuka et al.
patent: 4365408 (1982-12-01), Ditzig
patent: 4461934 (1984-07-01), Jabben
patent: 4569000 (1986-02-01), Noji

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