AU1203670A - Method and apparatus for earth communications - Google Patents

Method and apparatus for earth communications

Info

Publication number
AU1203670A
AU1203670A AU12036/70A AU1203670A AU1203670A AU 1203670 A AU1203670 A AU 1203670A AU 12036/70 A AU12036/70 A AU 12036/70A AU 1203670 A AU1203670 A AU 1203670A AU 1203670 A AU1203670 A AU 1203670A
Authority
AU
Australia
Prior art keywords
earth communications
communications
earth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
AU12036/70A
Other languages
English (en)
Inventor
Craydon Lester Brown
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ConocoPhillips Co
Original Assignee
Continental Oil Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Continental Oil Co filed Critical Continental Oil Co
Publication of AU1203670A publication Critical patent/AU1203670A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/02—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with propagation of electric current
    • G01V3/06—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with propagation of electric current using ac
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B13/00—Transmission systems characterised by the medium used for transmission, not provided for in groups H04B3/00 - H04B11/00
    • H04B13/02—Transmission systems in which the medium consists of the earth or a large mass of water thereon, e.g. earth telegraphy

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Geophysics And Detection Of Objects (AREA)
AU12036/70A 1969-04-25 1970-03-03 Method and apparatus for earth communications Expired AU1203670A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81927169A 1969-04-25 1969-04-25

Publications (1)

Publication Number Publication Date
AU1203670A true AU1203670A (en) 1971-09-09

Family

ID=25227667

Family Applications (1)

Application Number Title Priority Date Filing Date
AU12036/70A Expired AU1203670A (en) 1969-04-25 1970-03-03 Method and apparatus for earth communications

Country Status (3)

Country Link
AU (1) AU1203670A (de)
DE (1) DE2020098A1 (de)
GB (1) GB1257299A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU599797B2 (en) * 1987-05-29 1990-07-26 Stolar, Inc. Medium frequency mine communication system

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2543766B1 (fr) * 1983-03-28 1985-07-19 Inst Francais Du Petrole Procede de transmission de signal sans liaison electrique au travers d'une paroi conductrice, la coque d'un navire par exemple, et dispositif pour sa mise en oeuvre
GB2163029B (en) * 1984-08-06 1987-11-18 Peter James Raynor Inductive communication system
CA1311527C (en) * 1988-05-02 1992-12-15 Kenneth E. Hjelmstad Electromagnetic fire warning system for underground mines
ES2330286B1 (es) * 2007-07-26 2010-09-21 Universidad De Zaragoza Metodo y dispositivo de transmision y recepcion de audio para comunicaciones bidireccionales mediante inyeccion de corriente.
EP2438698A4 (de) * 2009-06-03 2015-10-14 Marshall Radio Telemetry Inc Systeme und verfahren für durch die erde verlaufende kommunikationen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU599797B2 (en) * 1987-05-29 1990-07-26 Stolar, Inc. Medium frequency mine communication system

Also Published As

Publication number Publication date
DE2020098A1 (de) 1970-11-05
GB1257299A (de) 1971-12-15

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