Signal protection system for bi-direction ring network
US6249510A · kind A · utility
35Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 10, 1998 |
| Grant date | Jun 19, 2001 |
| Priority date | — |
| Expiry date | Sep 10, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0092
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The channel protection facility in a two-fiber bi-directional line switched ring network may be significantly enhanced by protecting the service channels in one of the fibers with corresponding protection channels in the other fiber and vice-versa. Thus, if a failure occurs such that the content of the service channels cannot be forwarded to an upstream point, then, without having to perform a wavelength conversion function, the service channels may be substituted for the protection channels in the other fiber and forwarded to the upstream point in the opposite direction via the ring network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.