Method and apparatus for detecting and supplying power by a first network device to a second network device
US7203851B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2002 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | May 5, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2203/547
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A first network device supplies power to a second network device in communication therewith. The first network device comprises a physical layer device which includes a pulse generator to generate a test signal comprising n sub-pulses to be transmitted to the second network device, wherein in n being greater than 2. A detector is responsive to the second network device, and a controller is in communication with the detector and the pulse generator. When the detector detects j pulses which are greater than a predetermined threshold, 1≦j<n, the controller, responsive to the detector, enables power to be transmitted to the second network device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.