Crystal oscillator
US7088032B2 · kind B2 · utility
15Cited by
10References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2005 |
| Grant date | Aug 8, 2006 |
| Priority date | — |
| Expiry date | Jun 16, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L1/04
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A crystal oscillator of the present invention includes: a substrate provided in a package; a heating device arranged as surrounding an internal area of the substrate on at least one of the surfaces of the substrate; a crystal resonator or a crystal element and an oscillation circuit unit provided in an area enclosed by the heating device; a thermosensitive element which detects a temperature in an area enclosed by the heating device; and a control unit for controlling a heating value applied to the heating device based on a detection result of the thermosensitive element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.