Channel mask definition for monitoring wavelength division multiplexing transmission systems
US6751413B2 · kind B2 · utility
1Cited by
9References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2001 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Aug 8, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/0795
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Multiple signals are monitored, for example, by an instrument used for monitoring wavelength division multiplexing (WDM) transmission systems. For each monitored frequency channel, an active mask is initialized. The active mask includes an operating window defined by a minimum frequency, a maximum frequency, a minimum amplitude and a maximum amplitude. Each signal is monitored to determine when the signal strays outside the operating window. An alarm is generated when the signal strays outside the operating window.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.