Skew discovery and compensation for WDM fiber communications systems using 8b10b encoding
US6735397B2 · kind B2 · utility
19Cited by
3References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 14, 2001 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Oct 31, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/4908
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
This invention uses fiber characteristics combined with knowledge of the 8b10b code to discover and compensate for skew between parallel data streams, caused by chromatic dispersion, in a WDM system allowing the receiver to recover both the data and timing of the data streams as they were originally launched. This skew discovery and compensation does not require the insertion or deletion of any control symbols to/from the original 8b10b streams, and does not require the use of a training or sample sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.