Switching mechanism for electronic wristwatch

Details Switching mechanism for electronic wristwatch Switching mechanism for electronic wristwatch

1977-03-31

1981-01-27

Weldon, Ulysses

Horology: time measuring systems or devices

Chronological

With manually actuated display

200DIG1, 200DIG2, 200 52R, G04C 1700

Patent

active

042479290

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.

REFERENCES:
patent: 2340213 (1944-01-01), Ellsworth
patent: 2873637 (1959-02-01), Herold
patent: 3081594 (1963-03-01), Atkins et al.
patent: 3670322 (1972-06-01), Mallebrein
patent: 3823550 (1974-07-01), Bergey
patent: 3944843 (1976-03-01), Martins
patent: 4059956 (1977-11-01), Maeda et al.

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