Device for controlling the functions of an electronic watch
US4477194A · kind A · utility
10Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1980 |
| Grant date | Oct 16, 1984 |
| Priority date | — |
| Expiry date | Oct 14, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04C3/001
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The case 1 of the watch comprises elements consisting of ribbed zones 3, 4 and 5 of different structures which can supply mechanical vibrations when they are rubbed by the user of the watch. A transducer transforms these acoustic vibrations into an electric signal. An electronic circuit comprising generator means, a pulse shaper, counters, a register and a comparator allows the vibration message generated by the activation of one or the other of the ribbed zones 3, 4 and 5 to be decoded and one or the other of the functions appearing on the display 2 of the watch to be controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.