FR2441302A1 - Recepteur de taxe telephonique a multifrequences - Google Patents

Recepteur de taxe telephonique a multifrequences

Info

Publication number
FR2441302A1
FR2441302A1 FR7831436A FR7831436A FR2441302A1 FR 2441302 A1 FR2441302 A1 FR 2441302A1 FR 7831436 A FR7831436 A FR 7831436A FR 7831436 A FR7831436 A FR 7831436A FR 2441302 A1 FR2441302 A1 FR 2441302A1
Authority
FR
France
Prior art keywords
circuit
nand gate
common mode
high frequency
counting
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
FR7831436A
Other languages
English (en)
Other versions
FR2441302B1 (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.)
Landis and Gyr AG
Original Assignee
Landis and Gyr AG
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 Landis and Gyr AG filed Critical Landis and Gyr AG
Priority to FR7831436A priority Critical patent/FR2441302A1/fr
Publication of FR2441302A1 publication Critical patent/FR2441302A1/fr
Application granted granted Critical
Publication of FR2441302B1 publication Critical patent/FR2441302B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/28—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP with meter at substation or with calculation of charges at terminal

Landscapes

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

Abstract

UN ORGANE DE COMPTAGE 10 EST COMMANDE PAR UN RECEPTEUR SELECTIF D'IMPULSIONS DE TAXATION. LES IMPULSIONS DE TAXATION HAUTE FREQUENCE SONT RECUES PAR UN FILTRE PASSE-BANDE 2, A 12 OU 16KHZ, BRANCHE SUR LA LIGNE EN AMONT D'UN FILTRE 1 COUPANT LA MEME BANDE, ET LE FILTRE 2 EST SUIVI D'UN AMPLIFICATEUR INVERSEUR 3. LES IMPULSIONS DE TAXATION BASSE FREQUENCE SONT APPLIQUEES A TRAVERS UN SUPPRESSEUR DE COMPOSANTE CONTINUE 12 A UN PONT DE PHOTOCOUPLEURS, 01 A 04, DONT LES DEUX SIGNAUX SORTIES A ET B ALIMENTENT UNE PORTE NON-ET 6. LA SORTIE D DE CELLE-CI ET LA SORTIE C DE L'AMPLIFICATEUR 3 SONT APPLIQUEES A UNE SECONDE PORTE NON-ET 7, QUI COMMANDE LE CIRCUIT D'ACTIONNEMENT 8 9 DE L'ORGANE DE COMPTAGE 10. APPLICATION NOTAMMENT AU COMPTAGE DE TAXES CHEZ L'ABONNE.
FR7831436A 1978-11-07 1978-11-07 Recepteur de taxe telephonique a multifrequences Granted FR2441302A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7831436A FR2441302A1 (fr) 1978-11-07 1978-11-07 Recepteur de taxe telephonique a multifrequences

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7831436A FR2441302A1 (fr) 1978-11-07 1978-11-07 Recepteur de taxe telephonique a multifrequences

Publications (2)

Publication Number Publication Date
FR2441302A1 true FR2441302A1 (fr) 1980-06-06
FR2441302B1 FR2441302B1 (fr) 1982-04-30

Family

ID=9214548

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7831436A Granted FR2441302A1 (fr) 1978-11-07 1978-11-07 Recepteur de taxe telephonique a multifrequences

Country Status (1)

Country Link
FR (1) FR2441302A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533097A1 (fr) * 1982-09-13 1984-03-16 Gesi Controleur de ligne telephonique destine a cooperer avec un automate
EP0238972A2 (fr) * 1986-03-20 1987-09-30 Fujitsu Limited Récepteur de signaux de taxation pour la taxation individuelle d'un abonné dans un système téléphonique

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH472816A (de) * 1967-06-07 1969-05-15 Siemens Ag Schaltungsanordnung für Gebührenzähler an Stationen in Fernmelde-, insbesondere Fernsprechanlagen
DE1945468A1 (de) * 1969-09-08 1971-03-11 Siemens Ag Schaltungsanordnung fuer eine Empfangseinrichtung zur Auswertung von erdsymmetrisch in eine Anschlussleitung von Fernsprechanlagen eingespeisten Signalspannungen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH472816A (de) * 1967-06-07 1969-05-15 Siemens Ag Schaltungsanordnung für Gebührenzähler an Stationen in Fernmelde-, insbesondere Fernsprechanlagen
DE1945468A1 (de) * 1969-09-08 1971-03-11 Siemens Ag Schaltungsanordnung fuer eine Empfangseinrichtung zur Auswertung von erdsymmetrisch in eine Anschlussleitung von Fernsprechanlagen eingespeisten Signalspannungen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533097A1 (fr) * 1982-09-13 1984-03-16 Gesi Controleur de ligne telephonique destine a cooperer avec un automate
EP0238972A2 (fr) * 1986-03-20 1987-09-30 Fujitsu Limited Récepteur de signaux de taxation pour la taxation individuelle d'un abonné dans un système téléphonique
EP0238972A3 (en) * 1986-03-20 1989-04-26 Fujitsu Limited Call meter signal receiver for subscriber's private metering of telephone system

Also Published As

Publication number Publication date
FR2441302B1 (fr) 1982-04-30

Similar Documents

Publication Publication Date Title
KR900003072B1 (en) Phase comparator
FR2441302A1 (fr) Recepteur de taxe telephonique a multifrequences
GB1338896A (en) Hybrid networks
US5668870A (en) Audible signaling device for informing when a telephone line is available or in use
GB1524756A (en) Telephone system
GB1471709A (en) Microphone arrangements
DE2960124D1 (en) Circuit arrangement for the ungrounded transmission of signals across points of isolation in communication systems
ES8600591A1 (es) Perfeccionamientos en los circuitos telefonicos
TW260845B (en) Synchronous counter and carry propagation method thereof
JPS5725734A (en) Party call receiver
JPS57178543A (en) Digital comparator
JPS5798040A (en) Comparator for serial magnitude
JPS54100611A (en) Circuit-blocking control system
JPS5613850A (en) Secondary signal piling transmission system
SU886323A2 (ru) Приемник тонального вызова
KR940012989A (ko) 공중회선망 단말기의 링신호 검출회로
JPS56143742A (en) Terminal starting system
JPS54132104A (en) Communication control unit
JPS57174942A (en) Line repeater
JPS57188172A (en) Urging signal transmission controller for public telephone set
JPS5497301A (en) Signal transmission system
JPS57132408A (en) Protecting circuit for output of operational amplifier
JPS5685946A (en) Time sharing multiplex transmission control system
JPS55117363A (en) Monitor device for pulse code communication unit
JPS56125142A (en) Identified reproduction circuit

Legal Events

Date Code Title Description
ST Notification of lapse