Clock recovery for optical transmission systems
US10122470B2 · kind B2 · utility
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5References
20Claims
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Assignee
Inventor
Key dates
| Filing date | Jul 6, 2016 |
| Grant date | Nov 6, 2018 |
| Priority date | — |
| Expiry date | Jul 6, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03057
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A receiver for an optical communications system which corrects distortion of a received signal. A clock recovery system utilizing a feedback and feedforward system are provided. The feedback loop comprises a phase detector and a clock source, while the feedforward loop comprises the phase detector and a delay element for delaying the output of distortion correction system. The feedback loop has a significantly lower bandwidth than the feedforward path. There are also provided methods of optimizing tap weights and of acquiring initial tap weights.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.