Multi-functional electronic watch
US4047010A · kind A · utility
32Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1975 |
| Grant date | Sep 6, 1977 |
| Priority date | — |
| Expiry date | Aug 26, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M11/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A multifunctional wrist watch combining the functions of time-indication with other functions, for example a calculator. The watch has a glass in which pick-ups are provided for detecting the passage of a finger of a user over the surface of the glass and recognition circuits for converting the trace detected into a logic signal for processing by a calculator circuit provided in the watch case. The output of the calculator is then displayed by the electro-optical display on the watch. The detection and recognition facility may also be utilized for correction of the date and time settings of the watch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.