FR596065A - Improvements to transmission circuits for telephone currents - Google Patents

Improvements to transmission circuits for telephone currents

Info

Publication number
FR596065A
FR596065A FR596065DA FR596065A FR 596065 A FR596065 A FR 596065A FR 596065D A FR596065D A FR 596065DA FR 596065 A FR596065 A FR 596065A
Authority
FR
France
Prior art keywords
transmission circuits
telephone currents
currents
telephone
circuits
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
Other languages
French (fr)
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR596065A publication Critical patent/FR596065A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H04B3/10—Control of transmission; Equalising by pilot signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
FR596065D 1924-11-13 1925-01-24 Improvements to transmission circuits for telephone currents Expired FR596065A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27117/24A GB245554A (en) 1924-11-13 1924-11-13 Improvements in or relating to telephone repeater circuits

Publications (1)

Publication Number Publication Date
FR596065A true FR596065A (en) 1925-10-15

Family

ID=10254473

Family Applications (1)

Application Number Title Priority Date Filing Date
FR596065D Expired FR596065A (en) 1924-11-13 1925-01-24 Improvements to transmission circuits for telephone currents

Country Status (6)

Country Link
US (2) US1545541A (en)
CH (1) CH113647A (en)
DE (1) DE474670C (en)
FR (1) FR596065A (en)
GB (1) GB245554A (en)
NL (1) NL15798C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990457A (en) * 1958-02-04 1961-06-27 Bell Telephone Labor Inc Tandem echo suppressor circuits

Also Published As

Publication number Publication date
US1545541A (en) 1925-07-14
GB245554A (en) 1926-01-14
CH113647A (en) 1926-02-16
DE474670C (en) 1929-04-12
NL15798C (en) 1927-01-15
US1545558A (en) 1925-07-14

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