GB224542A - Improvements in high frequency electric signalling systems - Google Patents

Improvements in high frequency electric signalling systems

Info

Publication number
GB224542A
GB224542A GB26538/24A GB2653824A GB224542A GB 224542 A GB224542 A GB 224542A GB 26538/24 A GB26538/24 A GB 26538/24A GB 2653824 A GB2653824 A GB 2653824A GB 224542 A GB224542 A GB 224542A
Authority
GB
United Kingdom
Prior art keywords
wire
power
high frequency
frequency electric
currents
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
GB26538/24A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB224542A publication Critical patent/GB224542A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • H04B3/56—Circuits for coupling, blocking, or by-passing of signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Communication Cables (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

224,542. British Thomson-Houston Co., Ltd., (Assignees of Baker, W. R. G.). Nov. 6,1923, [Convention date]. Wired wireless systems. - High-frequency signalling currents are transmitted to and received from the overhead conductors of power-transmission lines 1 - - 6 by means of a coupling wire 9 located centrally with respect to the space enclosed by the power lines. The coupling conductor 9 is earthed through a transformer 13 by which it is coupled to a high-frequency transmitter or receiver 12. The arrangement reduces free radiation from the wire 9, and ,also substantially neutralizes the induction effect of the power currents on the wire 9 in the case of three-phase distribution systems.
GB26538/24A 1923-11-06 1924-11-06 Improvements in high frequency electric signalling systems Expired GB224542A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US673191A US1859066A (en) 1923-11-06 1923-11-06 Signaling system

Publications (1)

Publication Number Publication Date
GB224542A true GB224542A (en) 1925-02-26

Family

ID=24701645

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26538/24A Expired GB224542A (en) 1923-11-06 1924-11-06 Improvements in high frequency electric signalling systems

Country Status (2)

Country Link
US (1) US1859066A (en)
GB (1) GB224542A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012733A (en) * 1975-10-16 1977-03-15 Westinghouse Electric Corporation Distribution power line communication system including a messenger wire communications link

Also Published As

Publication number Publication date
US1859066A (en) 1932-05-17

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