Electronic timepiece and control method of electronic timepiece
US10466655B1 · kind B1 · utility
1Cited by
10References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 27, 2018 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Dec 27, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04R40/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A processor controls an oscillation circuit such that a frequency of a clock signal is close to a reference frequency based on a frequency of a carrier wave of a standard radio wave and the frequency of the clock signal. In this manner, since the processor controls the frequency of the clock signal by using the carrier wave of the standard radio wave of which the frequency is managed with high accuracy, it becomes possible to improve accuracy of an internal time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.