Electronic timepiece
US4250523A · kind A · utility
2Cited by
3References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 5, 1979 |
| Grant date | Feb 10, 1981 |
| Priority date | — |
| Expiry date | Feb 5, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04C10/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An inspection circuit for use in an electronic timepiece is provided. The inspection circuit is characterized by the use of a gating circuit intermediate the timekeeping circuit of an electronic timepiece and certain counters that apply timekeeping signals to the digital display digits. The gating circuit is adapted to be selectively disposed into an inspection mode and thereby simultaneously apply to certain of the counters producing timekeeping signals a predetermined frequency inspection signal thereby reducing the time required to inspect the performance of the timepiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.