Protection switching with transmitter compensation function
US8682179B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2012 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Apr 13, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2210/254
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method of protection switching between first and second transceivers where dispersion compensation is effected electrically in the transmitters. The method includes detecting, at the second transceiver, a signal failure of a signal transmitted from the first transceiver and, upon detecting the signal failure, signalling the first transceiver to change its compensation function. The signalling can be done by encoding overhead bits in a signal transmitted from the second to the first transceiver. Another method of protection switching includes both transceivers toggling alternate reception paths upon detecting a signal failure and changing their dispersion compensation function to that of their respective alternate path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.