AR220796A1 - Circuito detector de corriente de aplicacion preferente pero no exclusiva en equipos telefonicos,para detectar la condicion de"colgado"o"descolgado"de tales equipos - Google Patents

Circuito detector de corriente de aplicacion preferente pero no exclusiva en equipos telefonicos,para detectar la condicion de"colgado"o"descolgado"de tales equipos

Info

Publication number
AR220796A1
AR220796A1 AR279021D AR27902179D AR220796A1 AR 220796 A1 AR220796 A1 AR 220796A1 AR 279021 D AR279021 D AR 279021D AR 27902179 D AR27902179 D AR 27902179D AR 220796 A1 AR220796 A1 AR 220796A1
Authority
AR
Argentina
Prior art keywords
hanging
equipment
detect
condition
preferred
Prior art date
Application number
AR279021D
Other languages
English (en)
Spanish (es)
Original Assignee
Amper Sa
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 Amper Sa filed Critical Amper Sa
Application granted granted Critical
Publication of AR220796A1 publication Critical patent/AR220796A1/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/2272—Subscriber line supervision circuits, e.g. call detection circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Interface Circuits In Exchanges (AREA)
AR279021D 1979-06-21 1979-11-26 Circuito detector de corriente de aplicacion preferente pero no exclusiva en equipos telefonicos,para detectar la condicion de"colgado"o"descolgado"de tales equipos AR220796A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES1979244069U ES244069Y (es) 1979-06-21 1979-06-21 Circuito detector de corriente.

Publications (1)

Publication Number Publication Date
AR220796A1 true AR220796A1 (es) 1980-11-28

Family

ID=8403494

Family Applications (1)

Application Number Title Priority Date Filing Date
AR279021D AR220796A1 (es) 1979-06-21 1979-11-26 Circuito detector de corriente de aplicacion preferente pero no exclusiva en equipos telefonicos,para detectar la condicion de"colgado"o"descolgado"de tales equipos

Country Status (9)

Country Link
US (1) US4310724A (fr)
EP (1) EP0020822B1 (fr)
AR (1) AR220796A1 (fr)
AT (1) ATE2593T1 (fr)
BR (1) BR8000482A (fr)
DE (1) DE2964877D1 (fr)
ES (1) ES244069Y (fr)
MX (1) MX149511A (fr)
PT (1) PT70525A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4958371A (en) * 1988-04-19 1990-09-18 Control Data Corporation Method and apparatus for determining when a telephone handset is off-hook
US4845741A (en) * 1988-04-27 1989-07-04 Control Data Corporation Modem ringing supression circuit
DE69836205T2 (de) * 1998-06-26 2007-08-30 Alcatel Lucent Filtervorrichtung
DE69836263T2 (de) * 1998-06-26 2007-05-31 Alcatel Filteranordnung anwendbar auf ADSL-teiler
JP2001201521A (ja) * 2000-01-18 2001-07-27 Agilent Technologies Japan Ltd 電流検出装置及びインピーダンス測定器及び電力測定装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1420563A (fr) * 1964-10-29 1965-12-10 Lignes Telegraph Telephon Détecteur de courant continu
AU463274B2 (en) * 1971-08-10 1975-07-24 Standard Telephones & Cables Pty. Ltd Circuit arrangement for supervision of une current in telecommunication exchanges
FR2172537A5 (fr) * 1972-02-17 1973-09-28 Constr Telephoniques
NL7301486A (fr) * 1973-02-01 1974-08-05
GB1504062A (en) * 1976-03-02 1978-03-15 Anaconda Co Loop current detector

Also Published As

Publication number Publication date
US4310724A (en) 1982-01-12
ES244069Y (es) 1980-04-01
MX149511A (es) 1983-11-16
DE2964877D1 (en) 1983-03-24
EP0020822A1 (fr) 1981-01-07
ES244069U (es) 1979-10-16
BR8000482A (pt) 1980-12-30
ATE2593T1 (de) 1983-03-15
EP0020822B1 (fr) 1983-02-16
PT70525A (fr) 1979-12-01

Similar Documents

Publication Publication Date Title
JPS5289200A (en) Antiflammable and less fuming isocyanurate polymer
IT1209254B (it) Procedimento per rilevare perdite in condutture e apparecchiature per l'attuazione del procedimento.
BR7708659A (pt) Disjuntor de circuito
IT1137955B (it) Tessili con proprieta' conduttrici migliorate e procedimento per la loro fabbricazione
IT1132865B (it) Circuito rivelatore di transizioni
JPS52152955A (en) Condensation polymer stabilization
BR8000213A (pt) Circuito de interpolacao de campo
IT1160270B (it) Struttura circuitale per l'interruzione di programmi
BR7700079A (pt) Disjuntor de circuito eletrico
BE883269A (fr) Detecteur d'appauvrissement d'anode
GB1541665A (en) Rescue equipment
IT7925368A0 (it) Rivelatore per accertare la presenza di un segnale elettrico con prestabilite proprieta'.
IT1136756B (it) Circuito per la protezione di transisitori
AR220796A1 (es) Circuito detector de corriente de aplicacion preferente pero no exclusiva en equipos telefonicos,para detectar la condicion de"colgado"o"descolgado"de tales equipos
FR2305010A1 (fr) Disjoncteur limiteur d'intensite
IT1131304B (it) Circuito per la sorveglianza della rete elettrica
BR9000275A (pt) Circuito eletrico detector
IT8023401A0 (it) Interrutore di circuito per la rilevazione di guasti monofasi.
BR8005091A (pt) Circuito isolador de corrente magnetico-eletronico
BR8304853A (pt) Circuito de deteccao de corrente
IT1107373B (it) Impianto di interruzione d'emergenza di circuito elettrico
IL53417A0 (en) The preparation of aromatic fluorine compounds
BR8100533A (pt) Disposicao de circuito capaz de medir as caracteristicas eletricas de linhas telefonicas de usuarios
AT357625B (de) Gleichstromsensitiver fehlerstromschutzschalter
JPS55114123A (en) Ac instantaneous stop detecting circuit