Time frame switching responsive to global common time reference
US6735199B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2000 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Mar 28, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/005
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A time frame switching method and system of data units that utilize a global common time reference, which is divided into a plurality of contiguous periodic time frames. The system is designed to operate with high-speed wavelength division multiplexing (WDM) links, i.e., with multiple lambdas. The plurality of data units that are contained in each of the time frames are forwarded in a pipelined manner through the network switches, and can be switched from any incoming WDM channel to any subset of outgoing WDM channels responsive to the global common time reference. The outcome of this switching method is called fractional lambda switching.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.