JPS5186904A - Kanyushakaisenintaafueisukairo - Google Patents

Kanyushakaisenintaafueisukairo

Info

Publication number
JPS5186904A
JPS5186904A JP15069275A JP15069275A JPS5186904A JP S5186904 A JPS5186904 A JP S5186904A JP 15069275 A JP15069275 A JP 15069275A JP 15069275 A JP15069275 A JP 15069275A JP S5186904 A JPS5186904 A JP S5186904A
Authority
JP
Japan
Prior art keywords
kanyushakaisenintaafueisukairo
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
JP15069275A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5619784B2 (fr
Inventor
Rudorufu Myuuraa Hansu
Shindoraa Hansu
Ueteigaa Peetaa
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 Business Machines Corp
Original Assignee
International Business Machines 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 Business Machines Corp filed Critical International Business Machines Corp
Publication of JPS5186904A publication Critical patent/JPS5186904A/ja
Publication of JPS5619784B2 publication Critical patent/JPS5619784B2/ja
Granted 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
    • H04M19/005—Feeding arrangements without the use of line transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
JP15069275A 1974-12-23 1975-12-19 Kanyushakaisenintaafueisukairo Granted JPS5186904A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1722074A CH586984A5 (fr) 1974-12-23 1974-12-23

Publications (2)

Publication Number Publication Date
JPS5186904A true JPS5186904A (ja) 1976-07-30
JPS5619784B2 JPS5619784B2 (fr) 1981-05-09

Family

ID=4423697

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15069275A Granted JPS5186904A (ja) 1974-12-23 1975-12-19 Kanyushakaisenintaafueisukairo

Country Status (6)

Country Link
JP (1) JPS5186904A (fr)
CH (1) CH586984A5 (fr)
DE (1) DE2551816C3 (fr)
FR (1) FR2296339A1 (fr)
GB (1) GB1481750A (fr)
IT (1) IT1049925B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5413715A (en) * 1977-07-01 1979-02-01 Nippon Telegr & Teleph Corp <Ntt> Four-wire switching system
JPS5494811A (en) * 1978-01-11 1979-07-26 Hitachi Ltd Supply system for channel current
JPS5494810A (en) * 1978-01-11 1979-07-26 Hitachi Ltd Supply system for channel current

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414832A1 (fr) * 1978-01-13 1979-08-10 Labo Cent Telecommunicat Pont d'alimentation pour ligne telephonique
IT1159706B (it) * 1978-06-02 1987-03-04 Cselt Centro Studi Lab Telecom Circuito telefonico elettronico di linea d'utente
NL7810086A (nl) * 1978-10-06 1980-04-09 Philips Nv Voedingsbrug voor een abonneestroomloop.
US4254305A (en) * 1979-02-07 1981-03-03 International Telephone And Telegraph Corporation Current limited subscriber line feed circuit
FR2460078B1 (fr) * 1979-06-25 1986-12-12 Trt Telecom Radio Electr Joncteur d'abonne electronique
CA1157175A (fr) * 1981-02-20 1983-11-15 Mitel Corporation Circuit economiseur d'energie pour ligne
DE3214624C2 (de) * 1982-04-20 1986-05-28 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur Auswertung von Teilnehmerschleifenzuständen in Fernsprechanlagen, insbesondere in Fernsprechnebenstellenanlagen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3649769A (en) * 1970-10-28 1972-03-14 Gen Electric Circuit for supplying direct current to a telephone line

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3649769A (en) * 1970-10-28 1972-03-14 Gen Electric Circuit for supplying direct current to a telephone line

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5413715A (en) * 1977-07-01 1979-02-01 Nippon Telegr & Teleph Corp <Ntt> Four-wire switching system
JPS5494811A (en) * 1978-01-11 1979-07-26 Hitachi Ltd Supply system for channel current
JPS5494810A (en) * 1978-01-11 1979-07-26 Hitachi Ltd Supply system for channel current

Also Published As

Publication number Publication date
FR2296339A1 (fr) 1976-07-23
DE2551816A1 (de) 1976-06-24
DE2551816B2 (de) 1979-06-13
CH586984A5 (fr) 1977-04-15
JPS5619784B2 (fr) 1981-05-09
DE2551816C3 (de) 1980-10-30
IT1049925B (it) 1981-02-10
FR2296339B1 (fr) 1981-12-31
GB1481750A (en) 1977-08-03

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