US5864284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for coupling radio-frequency signals to and from a cable of a power distribution network
Assignee: IBEC HOLDINGS Inc
•
Filing: 1997-03-06
•
Granted: 1999-01-26
•
Expires: 2017-03-06
Abstract
Abstract A coupling system for transferring a RF signal to and from a high-voltage cable (302) of a power distribution system is described. In one embodiment the coupling system uses a lightning arrester (314) as an element for coupling a RF signal from a RF modem (420) to and from the high-voltage cable. An impedance element of the coupling system is a section of a grounding cable (309) modified with one or more ferrite cores (430) as a means for adjusting the value of the impedance.
Inventors
- 👤 Lelon Wayne Sanderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:57
CPC Classifications
H; H04; H04B; H04B3/00; H04B3/54; H04B3/56; H04B2203/00; H04B2203/54; H04B2203/5404; H04B2203/5425; H04B2203/5429; H04B2203/5437; H04B2203/5441; H04B2203/5458; H04B2203/5462; H04B2203/5466; H04B2203/5483
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
208 words
A radio frequency injection system for inserting a radio frequency signal onto a high-voltage cable of a power distribution system where the power distribution system has a neutral wire connected between a neutral node and a remote neutral node, the radio frequency injection system comprising: a radio frequency transmitter having an output terminal with a radio frequency transmit signal, radio frequency transmitter further having a neutral terminal connected to the neutral node; a radio frequency coupler having a high-voltage terminal and a low-voltage terminal, where the high-voltage terminal is coupled to the high-voltage cable and the low-voltage terminal is connected to the output of the radio frequency transmitter for receiving the radio frequency transmit signal; a copper wire mounted on a pole serves as an output impedance having one end connected to the low-voltage terminal of the radio frequency coupler and having the other end connected to the neutral node; and a low radio frequency impedance path between the neutral note and the remote neutral node where the low radio frequency impedance serves as a return path for the radio frequency signal, wherein said low radio frequency impedance path is the neutral wire; and wherein the radio frequency signal couples frequencies between one Megahertz and two hundred Megahertz.
Claim 2
Dependent Claim
208 words
A radio frequency injection system for inserting a radio frequency signal onto a high-voltage cable of a power distribution system where the power distribution system has a neutral wire connected between a neutral node and a remote neutral node, the radio frequency injection system comprising: a radio frequency transmitter having an output terminal with a radio frequency transmit signal, radio frequency transmitter further having a neutral terminal connected to the neutral node; a radio frequency coupler having a high-voltage terminal and a low-voltage terminal, where the high-voltage terminal is coupled to the high-voltage cable and the low-voltage terminal is connected to the output of the radio frequency transmitter for receiving the radio frequency transmit signal; a copper wire mounted on a pole serves as an output impedance having one end connected to the low-voltage terminal of the radio frequency coupler and having the other end connected to the neutral node; and a low radio frequency impedance path between the neutral note and the remote neutral node where the low radio frequency impedance serves as a return path for the radio frequency signal, wherein said low radio frequency impedance path is the neutral wire; and wherein the radio frequency signal couples frequencies between one Megahertz and two hundred Megahertz.
Claim 3
Dependent Claim
17 words
The radio frequency injection system of claim 1, wherein the radio frequency coupler is a lightning arrester.
Claim 4
Dependent Claim
17 words
The radio frequency injection system of claim 1, wherein the radio frequency coupler is a high-voltage capacitor.
Claim 5
Dependent Claim
17 words
The radio frequency injection system of claim 1, wherein the radio frequency signal is modulated with data.
Claim 6
Dependent Claim
212 words
In a data communication system having a high-voltage cable for coupling a radio frequency signal onto the high-voltage cable, said system comprising: a radio frequency transmitter with an output terminal and a reference terminal with the reference terminal connected to a neutral node, the radio frequency transmitter including the radio frequency signal; a radio frequency coupler having a high-voltage terminal coupled to the high-voltage cable, the radio frequency coupler further having a low-voltage terminal coupled to the output terminal of the transmitter; a copper wire mounted on a pole serves as an output impedance having a first terminal and a second terminal, where the first terminal is connected to the low-voltage terminal of the radio frequency coupler and the second terminal is connected to the neutral node; a low radio frequency impedance path between the neutral node and a remote neutral node where the low radio frequency impedance serves as a return path for the radio frequency signal; and wherein said low radio frequency impedance path is a neutral wire of a power distribution system connected between the neutral node and the remote neutral node; a high radio frequency impedance path between the neutral node and earth ground; wherein the radio frequency signal has frequencies between one Megahertz and two hundred Megahertz.
Claim 7
Dependent Claim
212 words
In a data communication system having a high-voltage cable for coupling a radio frequency signal onto the high-voltage cable, said system comprising: a radio frequency transmitter with an output terminal and a reference terminal with the reference terminal connected to a neutral node, the radio frequency transmitter including the radio frequency signal; a radio frequency coupler having a high-voltage terminal coupled to the high-voltage cable, the radio frequency coupler further having a low-voltage terminal coupled to the output terminal of the transmitter; a copper wire mounted on a pole serves as an output impedance having a first terminal and a second terminal, where the first terminal is connected to the low-voltage terminal of the radio frequency coupler and the second terminal is connected to the neutral node; a low radio frequency impedance path between the neutral node and a remote neutral node where the low radio frequency impedance serves as a return path for the radio frequency signal; and wherein said low radio frequency impedance path is a neutral wire of a power distribution system connected between the neutral node and the remote neutral node; a high radio frequency impedance path between the neutral node and earth ground; wherein the radio frequency signal has frequencies between one Megahertz and two hundred Megahertz.
Claim 8
Dependent Claim
14 words
The system of claim 5, wherein the radio frequency coupler is a lightning arrester.
Claim 9
Dependent Claim
14 words
The system of claim 5, wherein the radio frequency coupler is a high-voltage capacitor.
Claim 10
Dependent Claim
18 words
The system of claim 5, wherein the output impedance is a section of grounding cable having ferrite cores.
Claim 11
Dependent Claim
209 words
In a data communication system having a high-voltage cable for coupling a radio frequency signal onto an input terminal of a radio frequency receiver, said system comprising: a radio frequency transmitter with the radio frequency signal; the radio frequency receiver with the input terminal and a reference terminal with the reference terminal connected to a neutral node; a radio frequency coupler having a high-voltage terminal coupled to the high-voltage cable, the radio frequency coupler further having a low-voltage terminal coupled to the input terminal of the receiver; a copper wire mounted on a pole serves as an output impedance having a first terminal and a second terminal, where the first terminal is connected to the low-voltage terminal of the radio frequency coupler and the second terminal is connected to the neutral node; a low radio frequency impedance path between the neutral node and a remote neutral node at the radio frequency source, where the low radio frequency impedance serves as a return path for the radio frequency signal; and wherein said low radio frequency impedance path is a neutral wire of a power distribution system connected between the neutral node and the remote neutral node; wherein the radio frequency signal has frequencies between one Megahertz and two hundred Megahertz.
Claim 12
Dependent Claim
209 words
In a data communication system having a high-voltage cable for coupling a radio frequency signal onto an input terminal of a radio frequency receiver, said system comprising: a radio frequency transmitter with the radio frequency signal; the radio frequency receiver with the input terminal and a reference terminal with the reference terminal connected to a neutral node; a radio frequency coupler having a high-voltage terminal coupled to the high-voltage cable, the radio frequency coupler further having a low-voltage terminal coupled to the input terminal of the receiver; a copper wire mounted on a pole serves as an output impedance having a first terminal and a second terminal, where the first terminal is connected to the low-voltage terminal of the radio frequency coupler and the second terminal is connected to the neutral node; a low radio frequency impedance path between the neutral node and a remote neutral node at the radio frequency source, where the low radio frequency impedance serves as a return path for the radio frequency signal; and wherein said low radio frequency impedance path is a neutral wire of a power distribution system connected between the neutral node and the remote neutral node; wherein the radio frequency signal has frequencies between one Megahertz and two hundred Megahertz.
Claim 13
Dependent Claim
14 words
The system of claim 9, wherein the radio frequency coupler is a lightning arrester.
Claim 14
Dependent Claim
14 words
The system of claim 9, wherein the radio frequency coupler is a high-voltage capacitor.
Claim 15
Dependent Claim
18 words
The system of claim 9, wherein the output impedance is a section of grounding cable having ferrite cores.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-01-25 | 2002-07-27 | 2003-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-01-25 | 2006-07-27 | 2007-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-01-25 | 2010-07-27 | 2011-01-26 | $7700.00 | Window Closed / Lapsed |