Claims
- 1. The method of communicating using a "distributed earth referenced carrier system" between a first location adjacent a single metallic conductor and a second location adjacent said single metallic conductor comprising the step of grounding said single metallic conductor for A.C. current at various points between said first and second locations.
- 2. The method of communicating using a "distribted earth referenced carrier system" between a first location adjacent a single metallic conductor and a second location adjacent said single metallic conductor, comprising the step of grounding said single metallic conductor for A.C. current at various points between said first and second locations; the step of coupling wherein a first transceiver electrically to said single metallic conductor at said first location; and the step of coupling a second transceiver electrically to said single metallic conductor at said second location.
- 3. The method of claim 2 wherein said electrical coupling is conductive.
- 4. The method of claim 2 wherein said electrical coupling is magnetic.
- 5. The method of claim 2 wherein the output or carrier frequency of said tranceivers is within the range of 20 to 400 kHz.
- 6. The method of claim 2 wherein the output or carrier frequency of said transceivers is within the range of 50 and 200 kHz.
- 7. The method of claim 2 wherein one of said transceivers is electrically coupled to a plurality of incoming cables in a telephone central office, one of which cables is the cable to which said second transceiver is electrically coupled, with said first transceiver providing access to a dial tone.
- 8. The method of claim 2 wherein one of said transceivers is electrically coupled to a plurality of incoming cables in a telephone central office, one of which cables is the cable to which said second transceiver is electrically coupled, with said first transceiver providing access to a test network.
- 9. A method of communicating using a "distributed earth referenced carrier system" between a first location adjacent a plurality of single metallic conductors that are disposed in close proximity to each other and a second location adjacent said plurality of single metallic conductors, comprising the step of grounding said single metallic conductors for A.C. current at various points between said first and second locations; the step of coupling a first transceiver electrically to one of said single metallic conductors at said first location; and the step of coupling a second transceiver electrically to another of said single metallic conductors at said second location.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation of application Ser. No. 06/942,002, filed Dec. 15, 1986, which was a continuation of original application Ser. No. 06/691,490 filed by Douglas R. Connally et al on Jan. 14, 1985 for "METHODS OF COMMUNICATING OVER METALLIC CONDUCTORS HAVING MULTIPLE GROUNDS", now abandoned.
US Referenced Citations (4)
Continuations (2)
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Number |
Date |
Country |
Parent |
942002 |
Dec 1986 |
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Parent |
691490 |
Jan 1985 |
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