GB136340A - Improvements in Telephone Repeater Systems. - Google Patents

Improvements in Telephone Repeater Systems.

Info

Publication number
GB136340A
GB136340A GB140419A GB140419A GB136340A GB 136340 A GB136340 A GB 136340A GB 140419 A GB140419 A GB 140419A GB 140419 A GB140419 A GB 140419A GB 136340 A GB136340 A GB 136340A
Authority
GB
United Kingdom
Prior art keywords
repeater
transformers
phantom
currents
repeater systems
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
GB140419A
Inventor
Kenneth Essex Edgeworth
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB140419A priority Critical patent/GB136340A/en
Publication of GB136340A publication Critical patent/GB136340A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/36—Repeater circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

136,340. Edgeworth, K. E. Jan. 20, 1919. Telephonic repeaters; duplex and multiplex system.-A repeater for amplifying currents in a phantom circuit comprises two transformers 3, 4 connecting the two circuits A, B on which the phantom is superimposed to one side of a balanced repeater R<3>, the other side of which is connected tn an artificial line X. Repeaters R<1>, R<2> for the circuits A, B are. arranged as described in Specification 131,114. The primaries of the transformers 1, 3 are wound so that the phantom currents do not affect the secondary connected to repeater R<1>, while the loop currents do not affect the secondary connected to repeater R'. The transformers 2, 4 are similarly arranged.
GB140419A 1919-01-20 1919-01-20 Improvements in Telephone Repeater Systems. Expired GB136340A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB140419A GB136340A (en) 1919-01-20 1919-01-20 Improvements in Telephone Repeater Systems.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB140419A GB136340A (en) 1919-01-20 1919-01-20 Improvements in Telephone Repeater Systems.

Publications (1)

Publication Number Publication Date
GB136340A true GB136340A (en) 1919-12-18

Family

ID=32669812

Family Applications (1)

Application Number Title Priority Date Filing Date
GB140419A Expired GB136340A (en) 1919-01-20 1919-01-20 Improvements in Telephone Repeater Systems.

Country Status (1)

Country Link
GB (1) GB136340A (en)

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