Enhanced classification for power over ethernet
US7681052B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2006 |
| Grant date | Mar 16, 2010 |
| Priority date | — |
| Expiry date | Nov 11, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of classification of power requirements in a power over Ethernet system, the method comprising: providing a first classification voltage for a first classification cycle time, the provided first classification voltage being within a classification voltage range defined by a lower classification voltage limit and upper classification voltage limit; measuring a first current flow responsive to the provided first classification voltage; subsequent to the first classification cycle time, providing a voltage outside of the classification voltage range for a classification indexing time; subsequent to the classification indexing time, providing a second classification voltage for a second classification cycle time, the provided second classification voltage being within the classification voltage range; measuring a second current flow responsive to the provided second classification voltage; determining a classification responsive to the measured first current flow and the measured second current flow; and allocating power responsive to the determined classification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.