Clock recovery
US7873132B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 21, 2005 |
| Grant date | Jan 18, 2011 |
| Priority date | — |
| Expiry date | Jul 28, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/0025
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus of recovering a clock signal from an input data signal consistent with certain embodiments, where the clock signal has a clock cycle equal to one data bit period, involves identifying an earliest transition time position in a sequence of data signal transitions; identifying a latest transition time position in the sequence of data signal transitions; calculating an approximate average transition time of the sequence of clock transitions; calculating a sampling time for sampling data in the input data signal as the approximate average transition time plus one half clock cycle; and adjusting a sampling clock time to approximate the sampling time. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.