Power transfer apparatus for concurrently transmitting data and power over data wires
US6329906A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2000 |
| Grant date | Dec 11, 2001 |
| Priority date | — |
| Expiry date | Sep 29, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2203/5491
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Electrical supply current, sufficient to power a wireless access point, is transmitted concurrently with a network data signal across a transmission line. A power and data coupler couples the network data signal and the power signal, received through a data input and a power input respectively, and transmits the coupled signal, to a distance of three meters or more, over the transmission line to a power and data decoupler. The power and data decoupler separates the power signal from the network data signal and supplies those signals to a power output port and a data output port, respectively, for use by a wireless access node. The power signal may be modulated at a low frequency relative to the frequency of the data signal, and the network data signal has a data transmission rate of one megabit/second or higher.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.