Optical network system
US7664397B2 · kind B2 · utility
6Cited by
27References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2005 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | May 17, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0284
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An optical network system enabling confirmation of connection and tracking of wavelength paths at a high speed and a low cost without introducing any special hardware by having a wavelength path monitoring unit in an NMS give temporary change of optical power through a change generating unit to an optical signal S from an optical transmitting/receiving node, by having a change detecting unit confirm that this change of optical power has propagated through an optical transmission line and appeared at each node on the way, and confirming connections and monitoring the wavelength path while confirming the presence of the change.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.