Switching mechanism for electronic wristwatch

Details Switching mechanism for electronic wristwatch Switching mechanism for electronic wristwatch

1977-12-27

1981-05-26

Weldon, Ulysses

Horology: time measuring systems or devices

Displays or display device details

With manual activation

368 69, 368 70, G04B 1900

Patent

active

042701996

ABSTRACT:
A thin-film transparent electrode is provided on the front glass of an electronic wristwatch to form a part of a switching mechanism cooperation with a metal frame provided at the back of the wristwatch. The metal frame is maintained in contact with the operator's wrist in an operative condition. When the operator touches the thin-film transparent electrode, the switching mechanism in its ON condition provides a signal for controlling an operation mode of the electronic wristwatch, for example, a display condition.

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patent: 2873637 (1959-02-01), Herold
patent: 3081594 (1963-03-01), Atkins et al.
patent: 3670322 (1972-06-01), Mallebrein
patent: 3705424 (1972-12-01), Harvey, Jr.
patent: 3757322 (1973-09-01), Barkan et al.
patent: 3823546 (1974-07-01), Gortz et al.
patent: 3823550 (1974-07-01), Bergey
patent: 3911664 (1975-10-01), Haber
patent: 3934159 (1976-01-01), Nomiya et al.
patent: 3944843 (1976-03-01), Vaz Martins

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