FR2412995A2 - Joncteur d'abonne telephonique - Google Patents

Joncteur d'abonne telephonique

Info

Publication number
FR2412995A2
FR2412995A2 FR7738404A FR7738404A FR2412995A2 FR 2412995 A2 FR2412995 A2 FR 2412995A2 FR 7738404 A FR7738404 A FR 7738404A FR 7738404 A FR7738404 A FR 7738404A FR 2412995 A2 FR2412995 A2 FR 2412995A2
Authority
FR
France
Prior art keywords
subscriber line
whose input
supply points
balanced amplifier
telephone exchange
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
FR7738404A
Other languages
English (en)
Other versions
FR2412995B2 (fr
Inventor
Gilbert Marie Marcel Ferrieu
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.)
Telecommunications Radioelectriques et Telephoniques SA TRT
Original Assignee
Telecommunications Radioelectriques et Telephoniques SA TRT
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 Telecommunications Radioelectriques et Telephoniques SA TRT filed Critical Telecommunications Radioelectriques et Telephoniques SA TRT
Priority to FR7738404A priority Critical patent/FR2412995A2/fr
Priority to US05/949,715 priority patent/US4211896A/en
Priority to CA000313083A priority patent/CA1119330A/fr
Priority to DE2844492A priority patent/DE2844492C3/de
Priority to SE7810700A priority patent/SE437453B/sv
Priority to NLAANVRAGE7810301,A priority patent/NL186426C/xx
Priority to CH1068178A priority patent/CH636990A5/de
Priority to GB7840410A priority patent/GB2007463B/en
Priority to JP12691878A priority patent/JPS5465406A/ja
Publication of FR2412995A2 publication Critical patent/FR2412995A2/fr
Application granted granted Critical
Publication of FR2412995B2 publication Critical patent/FR2412995B2/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

JONCTEUR D'ABONNE COMPORTANT UN DISPOSITIF D'INVERSION DE BATTERIE CONSTITUE AU MOYEN DE DEUX DECODEURS DELTA DONT LES CIRCUITS COMMUTATEURS SONT A COMMANDER PAR DES SIGNAUX COMPLEMENTAIRES ET DONT LES SORTIES SONT CONNECTEES AUX BORNES DE LA LIGNE D'ABONNE PAR L'INTERMEDIAIRE D'UN AMPLIFICATEUR DE PUISSANCE SYMETRIQUE. LES TRAINS D'OSCILLATIONS DU SIGNAL DE TAXATION SONT EMIS EN COMMANDANT LESDITS CIRCUITS COMMUTATEURS A PARTIR D'UN SIGNAL PERIODIQUE A DEUX ETATS DE SORTE QUE LE SIGNAL A LA SORTIE DES DEUXDECODEURS DELTA SOIT MODULE EN AMPLITUDE AVEC UNE FREQUENCE DE MODULATION EGALE A CELLE REQUISE POUR LESDITES OSCILLATIONS ET AVEC UNE AMPLITUDE DE MODULATION REGLEE POUR CORRESPONDRE A CELLE REQUISE POUR LESDITES OSCILLATIONS. APPLICATION: CONNEXION D'UN CENTRAL TELEPHONIQUE AUX LIGNES D'ABONNES.
FR7738404A 1977-10-17 1977-12-20 Joncteur d'abonne telephonique Granted FR2412995A2 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FR7738404A FR2412995A2 (fr) 1977-12-20 1977-12-20 Joncteur d'abonne telephonique
US05/949,715 US4211896A (en) 1977-10-17 1978-10-10 Subscriber's circuit with a symmetrical amplifier
CA000313083A CA1119330A (fr) 1977-10-17 1978-10-11 Circuit d'abonne
DE2844492A DE2844492C3 (de) 1977-10-17 1978-10-12 Teilnehmerschaltung
SE7810700A SE437453B (sv) 1977-10-17 1978-10-13 Abonnentkrets
NLAANVRAGE7810301,A NL186426C (nl) 1977-10-17 1978-10-13 Abonneecircuit.
CH1068178A CH636990A5 (de) 1977-10-17 1978-10-13 Teilnehmerschaltung.
GB7840410A GB2007463B (en) 1977-10-17 1978-10-13 Telephone subscriber's line circuit
JP12691878A JPS5465406A (en) 1977-10-17 1978-10-17 Subscriber*s circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7738404A FR2412995A2 (fr) 1977-12-20 1977-12-20 Joncteur d'abonne telephonique

Publications (2)

Publication Number Publication Date
FR2412995A2 true FR2412995A2 (fr) 1979-07-20
FR2412995B2 FR2412995B2 (fr) 1980-09-19

Family

ID=9199064

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7738404A Granted FR2412995A2 (fr) 1977-10-17 1977-12-20 Joncteur d'abonne telephonique

Country Status (1)

Country Link
FR (1) FR2412995A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029823A1 (fr) * 1979-06-25 1981-06-03 Telecommunications Radioelectriques Et Telephoniques T.R.T. Circuit de pondération de courants

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029823A1 (fr) * 1979-06-25 1981-06-03 Telecommunications Radioelectriques Et Telephoniques T.R.T. Circuit de pondération de courants

Also Published As

Publication number Publication date
FR2412995B2 (fr) 1980-09-19

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Legal Events

Date Code Title Description
DR Decision of the appeal court due to an appeal at law against decisions of the director of the inpi, except decision of lapse
TP Transmission of property