GB2001507A - Communication system - Google Patents

Communication system

Info

Publication number
GB2001507A
GB2001507A GB787829861A GB7829861A GB2001507A GB 2001507 A GB2001507 A GB 2001507A GB 787829861 A GB787829861 A GB 787829861A GB 7829861 A GB7829861 A GB 7829861A GB 2001507 A GB2001507 A GB 2001507A
Authority
GB
United Kingdom
Prior art keywords
toroids
arranged around
elongate member
communication system
transceivers
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.)
Withdrawn
Application number
GB787829861A
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.)
Coal Industry Patents Ltd
Original Assignee
Coal Industry Patents Ltd
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 Coal Industry Patents Ltd filed Critical Coal Industry Patents Ltd
Priority to GB787829861A priority Critical patent/GB2001507A/en
Publication of GB2001507A publication Critical patent/GB2001507A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/22—Capacitive coupling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/60—Systems for communication between relatively movable stations, e.g. for communication with lift
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
    • H04B5/48—Transceivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

Data and speech are transmitted along an elongate member (6) from a transmitter (45) to a receiver. Toroids (20) are used to effect a low frequency coupling between transceivers and the elongate member. The toroids are segmented and their windings are such as to form part of a resonant circuit as well as being arranged around the segments such that external fields are cancelled. Protective shrouds are arranged around at least part of the toroids. <IMAGE>
GB787829861A 1977-07-15 1978-07-14 Communication system Withdrawn GB2001507A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB787829861A GB2001507A (en) 1977-07-15 1978-07-14 Communication system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2979377 1977-07-15
GB787829861A GB2001507A (en) 1977-07-15 1978-07-14 Communication system

Publications (1)

Publication Number Publication Date
GB2001507A true GB2001507A (en) 1979-01-31

Family

ID=26260089

Family Applications (1)

Application Number Title Priority Date Filing Date
GB787829861A Withdrawn GB2001507A (en) 1977-07-15 1978-07-14 Communication system

Country Status (1)

Country Link
GB (1) GB2001507A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2565719A1 (en) * 1984-06-08 1985-12-13 Servo System TRANSMISSION DEVICE FOR REMOTE CONTROL OF ELEVATOR OR NACELLE WINCHES
FR2610430A1 (en) * 1987-02-03 1988-08-05 Toshiba Kk CONTACTLESS READ TYPE INTEGRATED CIRCUIT CARD WITH PRE-IMPROVEMENT FUNCTION
GB2267628A (en) * 1992-06-02 1993-12-08 Michael George Conrad Brown Inductive communications system
GB2279536A (en) * 1993-06-19 1995-01-04 Coal Ind Receiver/transmitter for electromagnetic communications
CN113309575A (en) * 2021-06-25 2021-08-27 中国矿业大学 Coal mine underground water content real-time monitoring system and method based on nuclear magnetic sensor

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2565719A1 (en) * 1984-06-08 1985-12-13 Servo System TRANSMISSION DEVICE FOR REMOTE CONTROL OF ELEVATOR OR NACELLE WINCHES
WO1986000184A1 (en) * 1984-06-08 1986-01-03 Secalt Sa Telecontrol for hoisting winch
EP0168337A1 (en) * 1984-06-08 1986-01-15 Secalt S.A. Remote control for a winch
FR2610430A1 (en) * 1987-02-03 1988-08-05 Toshiba Kk CONTACTLESS READ TYPE INTEGRATED CIRCUIT CARD WITH PRE-IMPROVEMENT FUNCTION
GB2267628A (en) * 1992-06-02 1993-12-08 Michael George Conrad Brown Inductive communications system
GB2267628B (en) * 1992-06-02 1996-05-01 Michael George Conrad Brown Communication Systems
GB2279536A (en) * 1993-06-19 1995-01-04 Coal Ind Receiver/transmitter for electromagnetic communications
CN113309575A (en) * 2021-06-25 2021-08-27 中国矿业大学 Coal mine underground water content real-time monitoring system and method based on nuclear magnetic sensor
CN113309575B (en) * 2021-06-25 2022-03-25 中国矿业大学 Coal mine underground water content real-time monitoring system and method based on nuclear magnetic sensor

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)