Oscillator and frequency detector
US7557662B2 · kind B2 · utility
1Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2007 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Feb 7, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/1806
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In an oscillating apparatus or a frequency detecting apparatus in which a center frequency and a variable frequency range are freely or optionally established with a high stability and a high accuracy, a first frequency component of a signal from a first crystal oscillator and a second frequency component of another signal from a second crystal oscillator are subjected to a synthesizing operation in a synthesizer and to other operations to obtain a desired center frequency and a desired variable frequency range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.