Injection mode steering oscillator
US6977557B1 · kind B1 · utility
6Cited by
10References
18Claims
0Family size
Inventor
Key dates
| Filing date | Mar 25, 2004 |
| Grant date | Dec 20, 2005 |
| Priority date | — |
| Expiry date | May 29, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/24
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A means is provided to establish oscillations on a particular mode or resonance of a quartz crystal in a crystal oscillator and to discriminate against other modes. This is done by injecting a signal close in frequency to the desired mode until oscillation have been established and saturation of the active element has occurred. The limiting process then discriminates against the unwanted modes and holds the oscillation on the desired mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.