Integrated circuit frequency generator
US8183937B2 · kind B2 · utility
12Cited by
4References
64Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2010 |
| Grant date | May 22, 2012 |
| Priority date | — |
| Expiry date | Mar 10, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/23
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An integrated circuit frequency generator is disclosed. In some embodiments, the frequency generator comprises an electronic oscillator configured to generate an oscillator frequency and calibration circuitry configured to periodically calibrate the electronic oscillator with respect to a reference frequency source. When a primary power source is unavailable, an output frequency is generated from the oscillator frequency, and the reference frequency source is periodically pulse powered-on to calibrate the electronic oscillator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.