Optical CWDM-system
US7856182B2 · kind B2 · utility
4Cited by
7References
32Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 23, 2002 |
| Grant date | Dec 21, 2010 |
| Priority date | — |
| Expiry date | Jul 9, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0282
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a system for optical transmission of information over a multiplexed logical ring structure comprising a number of nodes, of which at least one is a master node, as stated in the independent claim 1. Said ring structure is a combination of a number of logical optical rings on the same physical fiber ring. Possible embodiments are disclosed in the dependent claims.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.