Method and apparatus for accurate synchronization using symbol decision feedback
US6130920A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 1998 |
| Grant date | Oct 10, 2000 |
| Priority date | — |
| Expiry date | May 13, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/042
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A circuit (12) for symbol decision directed feedback synchronization includes a current synchonization clock (45) that provides an initial sampling point and selects a detector corresponding to a current symbol decision. The circuit further includes a plurality of detectors (31, 32, 33, and 34) including the detector corresponding to the current symbol decision, a buffer (736) for storing the output of the detector corresponding to the current symbol decision and a processor (300) for seeking within a predetermined window about the initial sampling point for an optimum phase value to provide an adjustment signal which is used by the processor to adjust a subsequent symbol's sychronization clock to provide an optimal sampling point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.