Coupling broadband modems to power lines
AssigneeAmbient Corporation
InventorYehuda Cern
Life of this patent
Estimating the term…
Abstract
A method and system are given for a coupling a data signal over a power distribution system. An inductive signal coupler has two windings. The first winding is in series with a line conductor of the power distribution system. A capacitor is connected between the first line conductor and a second line conductor of the distribution system such that the capacitor presents a high impedance to a power signal and a low impedance to a data signal. A communication device is connected to the second winding so that a data signal can be coupled between the communication device and the distribution system.
Claims30
A method for coupling a data signal over a power distribution system, the method comprising:
- installing an inductive signal coupler on a transformer secondary line conductor of a power distribution system adjacent to a secondary winding of a distribution transformer;
- and
- connecting a communication device to the inductive signal coupler so that a data signal can be coupled between the communication device and the power distribution system.
A data signal system for a coupling a data signal over a power distribution system, the signal system comprising:
- an inductive signal coupler installed on a transformer secondary line conductor of a power distribution system adjacent to a distribution transformer;
- and
- a communication device connected to the inductive signal coupler so that a data signal can be coupled between the communication device and the power distribution system.
A method for coupling a data signal over a power distribution system, the method comprising:
- connecting a series inductance coupler to a first line conductor of a power distribution system;
- connecting a shunt capacitance coupler between the first line conductor and a second line conductor;
- and
- providing a communication device having parallel first and second interfaces, one interface being connected to the inductance coupler and the other interface being connected to the capacitance coupler, to enable coupling of a data signal between the communication device and the power distribution system.
A data signal system for coupling a data signal over a power distribution system, the signal system comprising:
- a series inductance coupler connected to a first line conductor of a power distribution system;
- a shunt capacitive coupler connected between the first line conductor and a second line conductor;
- and
- a communication device having parallel first and second interfaces, the first interface being connected to one coupler and the second interface being connected to the other coupler, to enable coupling of a data signal between the communication device and the power distribution system.
A method for coupling a data signal across a low impedance node of a power distribution system, the method comprising:
- connecting a capacitor in parallel with a low impedance node of a power distribution system, the capacitor presenting a high impedance to a power signal and a low impedance to a data signal;
- connecting a first inductive coupler in series with a line conductor, upstream of the node;
- connecting a second inductive coupler in series with the line conductor, downstream of the node;
- and
- operatively connecting the first inductive coupler and the second inductive coupler to couple the data signal across the node.
A data signal system for coupling a data signal across a low impedance node of a power distribution system, the signal system comprising:
- a capacitor connected in parallel with a low impedance node of a power distribution system, and presenting a high impedance to a power signal and a low impedance to a data signal;
- a first inductive coupler connected in series with a line conductor, upstream of the node;
- and
- a second inductive coupler connected in series with the line conductor, downstream of the node;
- wherein the first inductive coupler and the second inductive coupler are operably connected to couple the data signal across the node.
Dependencies are inferred from the claim text.