Banded add drop device
US6243179A · kind A · utility
26Cited by
9References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1997 |
| Grant date | Jun 5, 2001 |
| Priority date | — |
| Expiry date | Oct 31, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0219
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A demultiplexer demultiplexes an incoming WDM signal that contains a given number of channels into a given number of bands, each band containing a subset of the number of channels. An add/drop filter capable of handling the subset of channels in each band is coupled to the demultiplexer when a channel within a band requires further processing. A multiplexer multiplexes the processed bands and the passed through bands and outputs a WDM signal into the optical network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.