Touch switch with integral control circuit

Details Touch switch with integral control circuit Touch switch with integral control circuit

2006-04-18

2006-04-18

Deberadinis, Robert L. (Department: 2836)

Electrical transmission or interconnection systems

Switching systems

Condition responsive

C341S033000

Reexamination Certificate

active

07030513

ABSTRACT:
A touch switch apparatus for detecting the presence of an object such as a human appendage, the apparatus having a touch pad and a local control circuit connected to the touch pad and to a controlled device. The touch pad preferable includes a first electrode and a second electrode spaced from and surrounding the first electrode. The control circuit is preferably in integrated circuit form. A signal is provided to the touch pad to generate an electric field thereabout. Introduction of a stimulus near the touch pad disturbs the electric field. The control circuit detects the electric field disturbance in and generates a control signal in response.

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patent: WO 98/26506 (1998-06-01), None

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