FR2291653A2 - Demi-suppresseur d'echo pour un terminal d'une ligne electrique a quatre fils - Google Patents

Demi-suppresseur d'echo pour un terminal d'une ligne electrique a quatre fils

Info

Publication number
FR2291653A2
FR2291653A2 FR7437705A FR7437705A FR2291653A2 FR 2291653 A2 FR2291653 A2 FR 2291653A2 FR 7437705 A FR7437705 A FR 7437705A FR 7437705 A FR7437705 A FR 7437705A FR 2291653 A2 FR2291653 A2 FR 2291653A2
Authority
FR
France
Prior art keywords
transmission
cct
designed
telephone line
terminal station
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.)
Granted
Application number
FR7437705A
Other languages
English (en)
Other versions
FR2291653B2 (fr
Inventor
Jean-Michel Durand
Etienne Penicaud
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.)
Alcatel CIT SA
Original Assignee
Alcatel CIT SA
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 Alcatel CIT SA filed Critical Alcatel CIT SA
Priority to FR7437705A priority Critical patent/FR2291653A2/fr
Priority to DE2457876A priority patent/DE2457876C3/de
Priority to IT30250/74A priority patent/IT1030881B/it
Priority to GB5322574A priority patent/GB1477413A/en
Priority to SE7415394A priority patent/SE407319B/xx
Priority to JP14123174A priority patent/JPS5433086B2/ja
Priority to US05/531,405 priority patent/US3985979A/en
Priority to NL7416090A priority patent/NL7416090A/xx
Publication of FR2291653A2 publication Critical patent/FR2291653A2/fr
Application granted granted Critical
Publication of FR2291653B2 publication Critical patent/FR2291653B2/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
FR7437705A 1973-12-10 1974-11-15 Demi-suppresseur d'echo pour un terminal d'une ligne electrique a quatre fils Granted FR2291653A2 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR7437705A FR2291653A2 (fr) 1974-11-15 1974-11-15 Demi-suppresseur d'echo pour un terminal d'une ligne electrique a quatre fils
IT30250/74A IT1030881B (it) 1973-12-10 1974-12-06 Semi soppressore di eco per un terminale di una linea elettrica a quattro fili
DE2457876A DE2457876C3 (de) 1973-12-10 1974-12-06 Echounterdrücker für ein Endgerät einer elektrischen Vierdrahtfernsprechleitung
SE7415394A SE407319B (sv) 1973-12-10 1974-12-09 Halvekosperr vid telefonsystem
GB5322574A GB1477413A (en) 1973-12-10 1974-12-09 Half-echo suppressor for a four-wire line terminal
JP14123174A JPS5433086B2 (fr) 1973-12-10 1974-12-10
US05/531,405 US3985979A (en) 1973-12-10 1974-12-10 Half-echo suppressor for a terminal of a four-wire electric line
NL7416090A NL7416090A (nl) 1973-12-10 1974-12-10 Halve echo-onderdrukker voor een eindstation van een elektrische vierdraadslijn.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7437705A FR2291653A2 (fr) 1974-11-15 1974-11-15 Demi-suppresseur d'echo pour un terminal d'une ligne electrique a quatre fils

Publications (2)

Publication Number Publication Date
FR2291653A2 true FR2291653A2 (fr) 1976-06-11
FR2291653B2 FR2291653B2 (fr) 1979-01-12

Family

ID=9144965

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7437705A Granted FR2291653A2 (fr) 1973-12-10 1974-11-15 Demi-suppresseur d'echo pour un terminal d'une ligne electrique a quatre fils

Country Status (1)

Country Link
FR (1) FR2291653A2 (fr)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
REVUE GB: "POSTOFFICE ELECTRICAL ENGINEERS JOURNAL" VOL. 63, JUILLET 1970, NO. 2, PAGES 86 A 91 ARTICLE: "THE ECHO SUPPRESSOR NO. 7A" AUTEUR: HODSOLL) *

Also Published As

Publication number Publication date
FR2291653B2 (fr) 1979-01-12

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