Optical processing system
US5488501A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 15, 1994 |
| Grant date | Jan 30, 1996 |
| Priority date | — |
| Expiry date | Jun 15, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0077
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A telecommunications system comprising first and second nodes interconnected by a network transmission line. The first node comprises an optical data generator for producing an optical data signal at a first wavelength, an optical header generator for producing an optical control signal at a second wavelength, and means for multiplexing the data and control signals onto the transmission line. The second node comprises a switch and a controller responsive to signals at the second wavelength for controlling the routing of optical signals through the switch. A delay unit and associated control means are provided to ensure that sufficient delay occurs between the transmission start times of the control and data signals that the control signal completely overlaps the data signal at the second node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.