Methods and apparatus providing advanced classification for power over Ethernet
US7921307B2 · kind B2 · utility
80Cited by
68References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2007 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Feb 1, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R21/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system conducts a plurality of cycles on the powered device. Each cycle has a detection phase and a classification phase. A classification voltage is applied to the conductors during each cycle. The system measures a current in the conductors while the classification voltage is applied. The system determines a final class responsive to a plurality of measured currents. The final class utilized to determine an amount of inline power to deliver to the powered device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.