FR2047455A5 - - Google Patents

Info

Publication number
FR2047455A5
FR2047455A5 FR7016727A FR7016727A FR2047455A5 FR 2047455 A5 FR2047455 A5 FR 2047455A5 FR 7016727 A FR7016727 A FR 7016727A FR 7016727 A FR7016727 A FR 7016727A FR 2047455 A5 FR2047455 A5 FR 2047455A5
Authority
FR
France
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
FR7016727A
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR2047455A5 publication Critical patent/FR2047455A5/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/001—Current supply source at the exchanger providing current to substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Interface Circuits In Exchanges (AREA)
FR7016727A 1969-05-09 1970-05-08 Expired FR2047455A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT449669A AT291356B (en) 1969-05-09 1969-05-09 Circuit arrangement for the automatic maintenance of the symmetry of supply circuits for subscriber stations in telecommunication systems using transistors

Publications (1)

Publication Number Publication Date
FR2047455A5 true FR2047455A5 (en) 1971-03-12

Family

ID=3564787

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7016727A Expired FR2047455A5 (en) 1969-05-09 1970-05-08

Country Status (6)

Country Link
AT (1) AT291356B (en)
BE (1) BE750104A (en)
CH (1) CH512863A (en)
DE (1) DE2020527A1 (en)
FR (1) FR2047455A5 (en)
GB (1) GB1239537A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2372554A1 (en) * 1976-11-25 1978-06-23 Jeumont Schneider SUBSCRIBER LINE EQUIPMENT FOR TELEPHONE CENTRAL
DE2838038A1 (en) * 1978-08-31 1980-03-13 Siemens Ag Input circuit for telephone wire connection - has transistors, connected via collectors, to two wire and via transformer to four wire cable with supply to base and emitters
FR2442557A1 (en) * 1978-11-22 1980-06-20 Labo Cent Telecommunicat Automatic telephone line asymmetrical signal balancing - using synthetic centre tap on power supply and regulation of supply transistors
DE3032970A1 (en) * 1980-09-02 1982-04-15 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Balanced signal derived from telephone line - has operational amplifier between constant current generators with input connection to potential divider
JPS60157369A (en) * 1984-01-26 1985-08-17 Iwatsu Electric Co Ltd Speech current supply circuit

Also Published As

Publication number Publication date
BE750104A (en) 1970-11-09
DE2020527A1 (en) 1970-12-23
GB1239537A (en) 1971-07-14
CH512863A (en) 1971-09-15
AT291356B (en) 1971-07-12

Similar Documents

Publication Publication Date Title
AU465452B2 (en)
AU429630B2 (en)
AU450150B2 (en)
CS148144B2 (en)
FR2047455A5 (en)
AU442375B2 (en)
AU470301B1 (en)
AU5113869A (en)
AU442322B2 (en)
AU442554B2 (en)
AU442535B2 (en)
AU470661B1 (en)
AU442538B2 (en)
AU442380B2 (en)
AU428129B2 (en)
AU442357B2 (en)
AU428131B2 (en)
AU442463B2 (en)
AU438128B2 (en)
AU442285B2 (en)
AU4540468A (en)
AU4949169A (en)
AU5077469A (en)
BE728510A (en)
AU480213A (en)

Legal Events

Date Code Title Description
ST Notification of lapse