Non-intrusive coupling to shielded power cable
First Claim
1. A method for communicating a data signal over a power line carrying a power signal, wherein the method comprises:
- providing a transformer having a winding and a core;
disposing the core of the transformer in sufficiently close proximity to the power line to induce an AC voltage in the winding from the power signal carried by the power line;
powering a transceiver device with the induced AC voltage; and
communicating the data signal with the transceiver device via the power line.
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Accused Products
Abstract
The invention describes a method and a device for transporting a signal over a power line. The inventive method includes inducing an alternating current (AC) voltage from the power line, powering a transceiver device with the induced AC voltage, communicating the signal with the transceiver device via the power line. The method further may include transmitting and/or receiving the signal with an end user via the transceiver device. The transceiver device may be a fiber optic-based device that transmits data to the end user over non-metallic fiber optic links. The method may filter the induced AC voltage, and separately filter the signal.
300 Citations
48 Claims
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1. A method for communicating a data signal over a power line carrying a power signal, wherein the method comprises:
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providing a transformer having a winding and a core;
disposing the core of the transformer in sufficiently close proximity to the power line to induce an AC voltage in the winding from the power signal carried by the power line;
powering a transceiver device with the induced AC voltage; and
communicating the data signal with the transceiver device via the power line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A device for communicating a data signal over a power line, wherein the power line carries a power signal, the device comprising:
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a transformer device having a winding and a core configured to be disposed in sufficiently close proximity to the power line to induce an AC voltage from the power signal carried by the power line in the winding;
a transceiver that is configured to receive power from the transformer device, and wherein said transceiver is configured to communicate the data signal through the power line. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A method for providing communication of a data signal over a coaxial power cable having a center conductor carrying a power signal, an outer conductor, and an outer insulator outside the outer conductor, the method comprising:
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removing a portion of the outer insulator of the coaxial power cable;
coupling a communication device to the outer conductor of the coaxial power cable where the outer insulator is removed;
providing a transformer having a winding and a core;
disposing the core of the transformer in sufficiently close proximity to the power line to induce an AC voltage in the winding from the power signal carried by the power line; and
providing the induced voltage power to power the communication device. - View Dependent Claims (36, 37, 38, 39, 40, 41)
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42. A system for communicating a data signal on the outer conductor of an electric power line carrying an AC power signal having a current signal and a first voltage on a center conductor, comprising:
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a transceiver in communication with the electric power line, wherein the transceiver is communicatively coupled to the outer conductor to provide communications therethrough, providing a transformer having a winding and a core;
disposing the core of the transformer in sufficiently close proximity to the power line to induce an second voltage in the winding from the power signal carried by the center conductor line;
a power supply that converts the second voltage to a direct current voltage, wherein the direct current voltage is provided to transceiver; and
wherein said transceiver is conductively coupled to the outer conductor to facilitate data communications therethrough. - View Dependent Claims (43, 44, 45, 46, 47, 48)
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Specification