Clock recovery circuit and related methods
US7016450B2 · kind B2 · utility
4Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2002 |
| Grant date | Mar 21, 2006 |
| Priority date | — |
| Expiry date | Jun 23, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/18
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A clock recovery circuit for generating an output signal that is synchronized with an input signal. The clock recovery circuit includes a charge pump, a first filter, an oscillator, a switch circuit, and a second filter. When the charge pump operates, the switch circuit will disconnect the first filter from the oscillator. Additionally, when the charge pump stops operating, the switch circuit will connect the first filter and the oscillator such that the oscillator adjusts a frequency or phase of the output signal according to the output voltage of the first filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.