Power transfer apparatus for concurrently transmitting data and power over data wires
US6989735B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2004 |
| Grant date | Jan 24, 2006 |
| Priority date | — |
| Expiry date | Jun 29, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2203/5491
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Power supply current, sufficient to power a remote network device, is transmitted concurrently with a network data signal over a transmission line. A power-sourcing network device that can include a coupling circuit provides power and data to the remote network device. The coupling circuit can also be included in a stand-alone device. The remote network device (which can be a wireless access point) can separate the power signal from the data signal and use the power supply current to further process or retransmit the data signal. The power signal may be a low frequency relative to the frequency of the data signal, or it may be DC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.