Wavelength division multiplexed channel tagging
US6424439B1 · kind B1 · utility
32Cited by
4References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 24, 1998 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | Nov 24, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/0227
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method of tagging individual wavelength division multiplexed channels within a plurality of said channels. The method comprises the step of creating a tagging tone in the form of an analogue spectral line tone, by providing a series of regularly spaced time slots substantially throughout each of said tagged channels for receipt of binary tagging pulses. The binary tagging pulses in each tagged channel are arranged in a different manner to provide a characteristic tag for each tagged channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.