Circuit arrangement for line protection of optical data transmission
US7546034B2 · kind B2 · utility
7Cited by
7References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 23, 2002 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | Apr 4, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0295
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method and an electro-optical circuit arrangement for line protection in a WDM data transmission link comprising at least two selectable optical data transmission lines which can respectively transmit data via n data channels, the change-over to the respectively desired data transmission line occurring by means of optical switches between network elements on the receiver side and demultiplexers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.