Clock recovery for a data receiving unit
US9252785B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2014 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | Nov 19, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/0337
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Clock recovery for a data receiving unit is disclosed. Clock recovery can include obtaining an early/late signal from an incoming data stream. The early/late signal indicates if a set of one or more data samples of the incoming data stream tends to be earlier or later than an edge of a phase-rotated clock signal provided depending on a phase offset value. Clock recovery can include updating a phase rotation counter value in response to the early/late signal. Clock recovery can include determining the phase offset value depending on a rounded phase rotation counter value. The phase offset value can be further determined by selecting one of a set of options including maintaining, increasing, or decreasing the rounded phase rotation counter value. The selecting is performed depending on the early/late signal and depending on the phase rotation counter value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.