Method and apparatus for sub-carrier frequency control
US9344307B2 · kind B2 · utility
0Cited by
2References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2009 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Oct 16, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/223
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The invention pertains to methods, apparatus, and systems for controlling the sub-carrier frequencies in an optical frequency division multiplex communication system by using a metric available from the sub-carrier modem's digital receive block as an indicator of cross-talk between sub-carriers and adjusting the sub-carrier frequency separation as a function of that metric.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.