Time measurement device and time measurement method
US6370087B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 29, 2000 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | Feb 29, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04F7/0847
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a time measurement device (1000) having, at least, both a function of measuring standard time and a function of measuring any elapsed time, when a predetermined amount of time passes from a temporary suspension of a watch hand in position in the middle of the measurement of the elapsed time, the suspension of the watch hand is automatically released and the watch hand is driven to a watch hand position indicating the elapsed time. Provided thereby is the time measurement device which automatically releases the temporary suspension state in time measurement after the predetermined amount of time, thereby shortening the temporary suspension time and reducing power consumed to drive the watch hand to an originally expected watch hand position at the release of the temporary suspension.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.