Touch actuated system responsive to a combination of resistance

Details Touch actuated system responsive to a combination of resistance Touch actuated system responsive to a combination of resistance

1976-08-27

1977-10-11

Schaefer, Robert K.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

328 5, 200DIG1, H01H 3500

Patent

active

040537897

ABSTRACT:
A system that is responsive to the touch of an animal, and is activated by a combination of the inherent body capacity of the animal and the application of a skin resistance to a detector means. A digital oscillator provides two pulse outputs that are compared in a pulse processing means. One of the pulse outputs is fed to a touch responsive area, that in turn is connected to the pulse processing means, a buffer amplifier and a load. The touch responsive area activates the pulse processing means whenever the touch responsive area is bridged by a resistance and at the same time a body capacitance exists to ground.

REFERENCES:
patent: 3200306 (1965-08-01), Atkins et al.
patent: 3666988 (1972-05-01), Bellis
patent: 3728501 (1973-04-01), Larson et al.

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