Power transfer apparatus for concurrently transmitting data and power over data wires
First Claim
1. An apparatus for providing electrical power supply current to at least one 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, wherein the data signal corresponds to a local area network data signal;
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
at least one decoupler coupled to the distal end of the transmission line, each of the at least one decoupler having a data output coupled to a corresponding one of the at least one network device and a power output coupled to the corresponding one of the at least one network device, each of the at least one 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, the power output being sufficient for operation of the at least one network device.
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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.
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Citations
32 Claims
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1. An apparatus for providing electrical power supply current to at least one 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, wherein the data signal corresponds to a local area network data signal; 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 at least one decoupler coupled to the distal end of the transmission line, each of the at least one decoupler having a data output coupled to a corresponding one of the at least one network device and a power output coupled to the corresponding one of the at least one network device, each of the at least one 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, the power output being sufficient for operation of the at least one network device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. 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 for 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, the data signal including a local area network data signal; 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, the data signal conductors are coupled to at least one network access point, the coupled signal includes a power output sufficient for operation of the network access point. - View Dependent Claims (23, 24, 25, 26, 27)
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28. 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, the data signal including a local area network data signal; 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, the power supply current is sufficient for at least one of receiving, detecting, and processing the data signal. - View Dependent Claims (29, 30, 31)
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32. An apparatus for providing an electrical power signal to a wireless access point, the wireless access point providing wireless access to a plurality of wireless network devices, comprising:
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a network transmission line having a proximal end and a distal end, the distal end coupled to the wireless access point, the network transmission line adapted for transmission of a local area network data signal to the wireless access point over a distance of greater than 3 meters, the local area network data signal being transmitted at greater than 1 megabits per second; a coupler coupled to the proximal end of the network transmission line, the coupler having a data input and a power input, the coupler couples a power signal from the power input and the local area network data signal from the data input to the network transmission line; and a decoupler coupled to the distal end of the network transmission line, the decoupler having a data output coupled to the wireless access point and a power output coupled to the wireless access point, the decoupler supplies the local area network data signal from the network transmission line to the data output and power signal from the network transmission line to the power output.
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Specification