GB195273A - Improvements in telephone repeater systems - Google Patents

Improvements in telephone repeater systems

Info

Publication number
GB195273A
GB195273A GB9526/22A GB952622A GB195273A GB 195273 A GB195273 A GB 195273A GB 9526/22 A GB9526/22 A GB 9526/22A GB 952622 A GB952622 A GB 952622A GB 195273 A GB195273 A GB 195273A
Authority
GB
United Kingdom
Prior art keywords
lines
line
output circuits
telephone repeater
western
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
GB9526/22A
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Priority to GB9526/22A priority Critical patent/GB195273A/en
Priority to DEB104314D priority patent/DE437331C/en
Priority to FR551982D priority patent/FR551982A/en
Publication of GB195273A publication Critical patent/GB195273A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/30—Reducing interference caused by unbalanced currents in a normally balanced line

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Amplifiers (AREA)

Abstract

195,273. Western Electric Co., Ltd., (Western. Electric Co., Inc.). April 3, 1922. Repeating and amplifying systems.-In a telephone repeater system in which each line 11, 13 is balanced by a corresponding network 22, 22<1>, the single repeating element 19 has both its input and output circuits connected to both lines. Both input circuits 17, 17<1> are connected across the mid-points of balanced transformers 15, 15<1>, and both output circuits 21, 21<1> are connected inductively to the respective lines 11, 13 by the transformer coils 16, 16<1>. The common portion of the output circuits includes a wave filter 20, by which the amplified currents are restricted to the useful frequency range. The lines 11, 13 may have different characteristic impedances, the lines 11 being shown as a loaded line, and the line 13 as unloaded.
GB9526/22A 1922-04-03 1922-04-03 Improvements in telephone repeater systems Expired GB195273A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB9526/22A GB195273A (en) 1922-04-03 1922-04-03 Improvements in telephone repeater systems
DEB104314D DE437331C (en) 1922-04-03 1922-04-06 Arrangement for transmission of telephone and signal currents
FR551982D FR551982A (en) 1922-04-03 1922-05-24 Installation for telephone translator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9526/22A GB195273A (en) 1922-04-03 1922-04-03 Improvements in telephone repeater systems

Publications (1)

Publication Number Publication Date
GB195273A true GB195273A (en) 1923-03-29

Family

ID=9873682

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9526/22A Expired GB195273A (en) 1922-04-03 1922-04-03 Improvements in telephone repeater systems

Country Status (3)

Country Link
DE (1) DE437331C (en)
FR (1) FR551982A (en)
GB (1) GB195273A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909733A (en) * 1956-10-26 1959-10-20 Pintsch Electro G M B H Fa Hybrid circuit arrangement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909733A (en) * 1956-10-26 1959-10-20 Pintsch Electro G M B H Fa Hybrid circuit arrangement

Also Published As

Publication number Publication date
DE437331C (en) 1926-11-24
FR551982A (en) 1923-04-18

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