Time division multiplex and wavelength division multiplex optical switching node
US7209658B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2002 |
| Grant date | Apr 24, 2007 |
| Priority date | — |
| Expiry date | Jan 6, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0075
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention relates to a time division and wavelength division multiplex optical switching node for use in an optical communications network (2), which node combines a set of time division multiplex packets (8-1, 8-2, . . . , 8-i) into a wavelength division multiplex packet (18) to form a composite wavelength division multiplex packet, in particular by conferring on each time division multiplex packet (8-1, 8-2, . . . , 8-I) a respective appropriate multiplexing wavelength (λ1, λ2, . . . , λi), for example a wavelength specific to each time division multiplex packet. The invention has applications in high bit rate optical networks in particular, in which it offers versatility and transparent use of the different multiplexing modes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.