Optical node and optical add/drop multiplexer
US7711270B2 · kind B2 · utility
4Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2005 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | Jun 10, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0286
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The optical node connects N networks to each other (where N is an integer larger than one). Each of the N networks respectively includes a first transmission path and a second transmission path. The optical node includes a switching unit that connects the first transmission path of one network of the N networks to other (N−1) networks; a failure detector that detects failure in the first transmission path of the network; and a control unit that causes the switching unit to connect the second transmission path of the network to the other (N−1) networks when the failure is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.