Shielding arrangement for a capacitive touch switch device

Electrical transmission or interconnection systems – Switching systems – Condition responsive

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200DIG1, 200 52R, H01H 3500

Patent

active

040900924

ABSTRACT:
A capacitive touch switch device includes a panel in the form of a dielectric sheet element, a touch pad on the front of the panel, and at least a sensing pad on the rear of the panel. A conductive grounded shield plate is also disposed generally upon the rear side of the panel and substantially surrounds the sensing pad.

REFERENCES:
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patent: 3492440 (1970-01-01), Cerbone et al.
patent: 3496381 (1970-02-01), Wisnia
patent: 3593073 (1971-07-01), Atkins
patent: 3761736 (1973-09-01), Edge et al.
patent: 3797630 (1974-03-01), Zilkha
patent: 3862381 (1975-01-01), Glaister et al.
patent: 3886539 (1975-05-01), Gould, Jr.
patent: 3951250 (1976-04-01), Pointon
Electronics, Fred G. Geil; "MOSFET, Takes the Push Out of Elevator Pushbutton"; Oct. 30, 1967; pp. 70, 71.

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