Power over ethernet method and apparatus for immediate power availability
US9780955B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2015 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Mar 17, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A PSE control circuitry arranged to: control the power source to output a detection signal; responsive to the detection signal, determine the resistance of a signature resistive element; in the event that the determined resistance is within a predetermined range, control a power source to output power to the load; in the event that the determined resistance is outside the predetermined range, prevent the power source from outputting power for a predetermined disconnect time period; detect the amount of power drawn from the power source; in the event that the detected power amount is less than a predetermined minimum power draw value, control the power source to cease output of power for a predetermined power down time period, the predetermined power down time period less than the predetermined disconnect time period; immediately subsequent to both time periods, control the power source to output the detection signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.