Power transfer apparatus for concurrently transmitting data and power over data wires
First Claim
1. An apparatus for providing electrical power supply current to a network device, comprising:
- a transmission line having a proximal end and a distal end, the distal end coupled to the network device, the transmission line adapted for transmission of a data signal over a distance of greater than 3 meters at a data rate of greater than 1 megabits per second;
a coupler coupled to the proximal end of the transmission line, the coupler having a data input and a power input, the coupler couples power supply current from the power input and the data signal from the data input to the transmission line; and
a decoupler coupled to the distal end of the transmission line, the decoupler having a data output coupled to the network device and a power output coupled to the network device, the decoupler supplies the data signal from the transmission line to the data output and power supply current from the transmission line to the power output.
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Accused Products
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.
33 Citations
24 Claims
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1. An apparatus for providing electrical power supply current to a network device, comprising:
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a transmission line having a proximal end and a distal end, the distal end coupled to the network device, the transmission line adapted for transmission of a data signal over a distance of greater than 3 meters at a data rate of greater than 1 megabits per second;
a coupler coupled to the proximal end of the transmission line, the coupler having a data input and a power input, the coupler couples power supply current from the power input and the data signal from the data input to the transmission line; and
a decoupler coupled to the distal end of the transmission line, the decoupler having a data output coupled to the network device and a power output coupled to the network device, the decoupler supplies the data signal from the transmission line to the data output and power supply current from the transmission line to the power output. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20)
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17. A power transmission adapter for concurrently transmitting a power supply current and a data signal at distances over three meters comprising:
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an electrical power port Or receiving the power supply current;
a data communication port adapted for receiving the data signal, the data signal having a data transfer rate of one Megabits per second or higher;
an output port having one or more data signal conductors adapted for transmitting the data signal; and
a coupling circuit, coupled to the electrical power input port, the data communication port and the output port, the coupling circuit couples the data signal and the power supply current to create a coupled signal and transmits the coupled signal to the data signal conductors.
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21. A power transmission adapter for decoupling a power supply current and a data signal from a coupled signal comprising:
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an input port having one or more data signal conductors adapted for receiving the coupled signal;
an electrical power output port for transmitting the power supply current;
a data communication port for transmitting the data signal, the data signal having a data transfer rate of 1 Megabits per second or higher, and a decoupling circuit, coupled to the input port and the electrical power output port and the data communication port, and which decouples the data signal and the power supply current from the coupled signal and transmits the power supply current to the electrical power output port and the data signal to the data communication port. - View Dependent Claims (22, 23, 24)
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Specification