Switching mechanism for electronic wristwatch
US4270199A · kind A · utility
2Cited by
11References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1977 |
| Grant date | May 26, 1981 |
| Priority date | — |
| Expiry date | Dec 27, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S200/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.