Measurement apparatus, network design apparatus, transmission system, and network management apparatus
US8879907B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 4, 2013 |
| Grant date | Nov 4, 2014 |
| Priority date | — |
| Expiry date | Apr 26, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/073
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A measurement apparatus includes: a transmitter disposed at a transmission-side node and configured to transmit two pulsed lights with different wavelengths at time intervals to a reception-side node; a transmission controller configured to control the transmitter so as to transmit the two pulsed lights repeatedly while changing the time interval; a receiving unit disposed at the reception-side node and configured to receive the two pulsed lights from the transmitter via one or more relay nodes; a detection unit configured to detect a change in a phase of at least one of the two pulsed lights received by the receiving unit; and a measurement unit configured to measure, based on the time interval and the change in a phase detected by the detection unit, a dispersion value of each transmission line between two nodes of nodes including the transmission-side node, the reception-side node, and the one or more relay nodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.