RC Array

Details RC Array RC Array

1981-11-20

1983-10-25

Crosland, Donnie L.

Communications: electrical

Audible indication

Percussion-type sound producer

340365S, 340365A, 340365R, 179 90K, 178 17C, 200 52R, G06F 302

Patent

active

044122098

ABSTRACT:
A switch assembly with a different combination of resistance and capacitance associated with each of a plurality of switches and with as few as two leads connecting the plurality of switches to external circuitry. The external circuitry detects switch activation by sensing combined resistance and capacitance across the switch leads.

REFERENCES:
patent: T904008 (1972-11-01), Crouse
patent: 3750113 (1973-07-01), Cencel
patent: 3778816 (1973-12-01), Cuccio
patent: 4015254 (1977-03-01), Strandt

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