CA2024941A1 - Detecteur combine des tensions d'appel et de signal d'encaissement, et methode connexe - Google Patents

Detecteur combine des tensions d'appel et de signal d'encaissement, et methode connexe

Info

Publication number
CA2024941A1
CA2024941A1 CA2024941A CA2024941A CA2024941A1 CA 2024941 A1 CA2024941 A1 CA 2024941A1 CA 2024941 A CA2024941 A CA 2024941A CA 2024941 A CA2024941 A CA 2024941A CA 2024941 A1 CA2024941 A1 CA 2024941A1
Authority
CA
Canada
Prior art keywords
voltages
ringing
coin control
positive
negative
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
CA2024941A
Other languages
English (en)
Other versions
CA2024941C (fr
Inventor
Yuksel Gozen
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.)
Nokia of America Corp
Original Assignee
Alcatel NA Inc
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 Alcatel NA Inc filed Critical Alcatel NA Inc
Publication of CA2024941A1 publication Critical patent/CA2024941A1/fr
Application granted granted Critical
Publication of CA2024941C publication Critical patent/CA2024941C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
    • H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
    • 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)
  • Computer Security & Cryptography (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Telephone Function (AREA)
CA002024941A 1989-12-08 1990-09-10 Detecteur combine des tensions d'appel et de signal d'encaissement, et methode connexe Expired - Fee Related CA2024941C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/448,069 1989-12-08
US07/448,069 US4962520A (en) 1989-12-08 1989-12-08 Composite ringing and coin control voltage detector and method

Publications (2)

Publication Number Publication Date
CA2024941A1 true CA2024941A1 (fr) 1991-06-09
CA2024941C CA2024941C (fr) 1994-08-02

Family

ID=23778890

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002024941A Expired - Fee Related CA2024941C (fr) 1989-12-08 1990-09-10 Detecteur combine des tensions d'appel et de signal d'encaissement, et methode connexe

Country Status (2)

Country Link
US (1) US4962520A (fr)
CA (1) CA2024941C (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5109409A (en) * 1989-12-15 1992-04-28 Alcatel Na, Inc. Apparatus and method to detect telephony signaling states
US5373552A (en) * 1993-02-04 1994-12-13 At&T Corp. Tone Burst Generator
NL9301094A (nl) * 1993-06-23 1995-01-16 Nederland Ptt Inrichting voor het meten van analoge telefoniesignalen.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4273963A (en) * 1979-05-25 1981-06-16 Bell Telephone Laboratories, Incorporated Automatic equalization for digital transmission systems

Also Published As

Publication number Publication date
CA2024941C (fr) 1994-08-02
US4962520A (en) 1990-10-09

Similar Documents

Publication Publication Date Title
MY118091A (en) Double talk and echo path change detection in a telephony system
CA2034147A1 (fr) Dispositif de detection de la capacite residuelle d'une batterie tant en circuit ferme qu'en circuit ouvert
DE69004830D1 (de) Anordnung zum Ermitteln eines Ruhestroms einer integrierten monolithischen digitalen Schaltung, integrierte monolithische digitale Schaltung mit einer derartigen Anordnung und Prüfgerät mit einer derartigen Anordnung.
ATE194876T1 (de) Vorrichtung zum erfassen von verfälschten dokumenten
TW358887B (en) Electric current detection circuit having an automatic offset correction circuit
EP0394074A3 (fr) Méthode et appareil pour déterminer le type d'une pile et modifier la caractéristique opératoire
EP0377551A3 (fr) Procédé et système de détection de signaux dirigés vers l'extérieur
DK134090A (da) Detektor for kogetilstande
CA2135809A1 (fr) Methode et appareil de detection de defaillances dans les gyrolasers
CA2207707A1 (fr) Appareil de detection d'un defaut d'isolation dans un dispositif branche a un reseau electrique de transport ou de distribution de courant et procede de detection correspondant
IT8322652A0 (it) Dispositivo di rilevazione del passaggio di corrente in uno o piu' conduttori.
CA2024941A1 (fr) Detecteur combine des tensions d'appel et de signal d'encaissement, et methode connexe
CA2046774A1 (fr) Dispositif de detection du niveau moyen d'un signal d'imagerie
CA2076606A1 (fr) Methode de detection de signaux vocaux sur une ligne de communication
CA2118277A1 (fr) Methode de determination de type d'installation
NO892510D0 (no) Fremgangsmaate og anordning for registrering av transientstroemmen paa lynavledere, over spenningsavledere e.l.
DE60012886D1 (de) Gerät zur feststellung ob ein patient empfänglich ist für defibrillation
EP0368328A3 (fr) Circuit de détection de transition d'adresse
WO1999036791A3 (fr) Appareil de detection de cretes
CA2112029A1 (fr) Dispositif electronique a declenchement muni d'un testeur
CA2143185A1 (fr) Methode de detection de la deterioration d'un element en caoutchouc
GB2324229A (en) Supervisory audio tone-signalling tone (SAT-ST) handling
JPS56123160A (en) Trunk line channel fault monitoring system
CA2001486A1 (fr) Detecteur de desexcitation
US4916331A (en) Synchronized input latch circuit with conditioning circuits for AC inputs

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed