IT1212838B - Circuito telefonico, integrabile monoliticamente, per il riconoscimento dello sgancio in fase di suoneria. - Google Patents

Circuito telefonico, integrabile monoliticamente, per il riconoscimento dello sgancio in fase di suoneria.

Info

Publication number
IT1212838B
IT1212838B IT8323832A IT2383283A IT1212838B IT 1212838 B IT1212838 B IT 1212838B IT 8323832 A IT8323832 A IT 8323832A IT 2383283 A IT2383283 A IT 2383283A IT 1212838 B IT1212838 B IT 1212838B
Authority
IT
Italy
Prior art keywords
current
sub
circuit
line
telephone
Prior art date
Application number
IT8323832A
Other languages
English (en)
Other versions
IT8323832A0 (it
Inventor
Marco Siligoni
Vanni Saviotti
Original Assignee
Ates Componenti Elettron
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 Ates Componenti Elettron filed Critical Ates Componenti Elettron
Publication of IT8323832A0 publication Critical patent/IT8323832A0/it
Priority to IT8323832A priority Critical patent/IT1212838B/it
Priority to ES537753A priority patent/ES537753A0/es
Priority to US06/673,527 priority patent/US4677664A/en
Priority to DE198484114086T priority patent/DE143435T1/de
Priority to AT84114086T priority patent/ATE60967T1/de
Priority to DE8484114086T priority patent/DE3484121D1/de
Priority to BR8405956A priority patent/BR8405956A/pt
Priority to EP84114086A priority patent/EP0143435B1/en
Priority to JP59246353A priority patent/JPH0710083B2/ja
Application granted granted Critical
Publication of IT1212838B publication Critical patent/IT1212838B/it

Links

Classifications

    • 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
    • H04M19/026—Arrangements for interrupting the ringing current

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Telephonic Communication Services (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Manipulation Of Pulses (AREA)
  • Telephone Function (AREA)
  • Noise Elimination (AREA)
IT8323832A 1983-11-23 1983-11-23 Circuito telefonico, integrabile monoliticamente, per il riconoscimento dello sgancio in fase di suoneria. IT1212838B (it)

Priority Applications (9)

Application Number Priority Date Filing Date Title
IT8323832A IT1212838B (it) 1983-11-23 1983-11-23 Circuito telefonico, integrabile monoliticamente, per il riconoscimento dello sgancio in fase di suoneria.
ES537753A ES537753A0 (es) 1983-11-23 1984-11-19 Perfeccionamientos en los circuitos telefonicos
US06/673,527 US4677664A (en) 1983-11-23 1984-11-21 Method and apparatus for an improved ring trip detection telephone circuit
AT84114086T ATE60967T1 (de) 1983-11-23 1984-11-22 Monolithisch integrierte fernsprechschaltungen fuer rufabschaltungserkennung.
DE198484114086T DE143435T1 (de) 1983-11-23 1984-11-22 Monolithisch integrierte fernsprechschaltungen fuer rufabschaltungserkennung.
DE8484114086T DE3484121D1 (de) 1983-11-23 1984-11-22 Monolithisch integrierte fernsprechschaltungen fuer rufabschaltungserkennung.
BR8405956A BR8405956A (pt) 1983-11-23 1984-11-22 Circuito telefonico para o reconhecimento de desengate em fase de audio
EP84114086A EP0143435B1 (en) 1983-11-23 1984-11-22 Improvements in or relating to telephone circuits, monolithically integrated, for ring trip detection
JP59246353A JPH0710083B2 (ja) 1983-11-23 1984-11-22 リング・トリップ検出回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8323832A IT1212838B (it) 1983-11-23 1983-11-23 Circuito telefonico, integrabile monoliticamente, per il riconoscimento dello sgancio in fase di suoneria.

Publications (2)

Publication Number Publication Date
IT8323832A0 IT8323832A0 (it) 1983-11-23
IT1212838B true IT1212838B (it) 1989-11-30

Family

ID=11210289

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8323832A IT1212838B (it) 1983-11-23 1983-11-23 Circuito telefonico, integrabile monoliticamente, per il riconoscimento dello sgancio in fase di suoneria.

Country Status (8)

Country Link
US (1) US4677664A (it)
EP (1) EP0143435B1 (it)
JP (1) JPH0710083B2 (it)
AT (1) ATE60967T1 (it)
BR (1) BR8405956A (it)
DE (2) DE3484121D1 (it)
ES (1) ES537753A0 (it)
IT (1) IT1212838B (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4784435A (en) * 1986-02-26 1988-11-15 Leib Roger K Patient chair
IT1213306B (it) * 1986-07-29 1989-12-20 Sgs Microelettronica Spa Circuito telefonico, integrabile monoliticamente, per l'invio disegnali di suoneria in una linea telefonica d'utente e per il riconoscimento dello sgangio in fase di suoneria.
DE59510969D1 (de) * 1994-03-04 2004-12-30 Infineon Technologies Ag Verfahren zur störsicheren Abhebeerkennung bei Rufsignaleinspeisung in digitalen Fernsprechvermittlungseinrichtungen und Schaltungsanordnung zur Durchführung des Verfahrens
JPH08139802A (ja) * 1994-11-10 1996-05-31 Fujitsu Ltd リングトリップ判定回路
US5544241A (en) * 1995-06-27 1996-08-06 Andrew S. Dibner Telephone ring detector

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3829619A (en) * 1972-12-29 1974-08-13 Stromberg Carlson Corp Telephone ring trip circuit
CH604453A5 (it) * 1976-06-25 1978-09-15 Ibm
FR2452832A1 (fr) * 1979-03-30 1980-10-24 Telecommunications Sa Dispositif de commande de sonnerie
FR2470498A1 (fr) * 1979-11-21 1981-05-29 Trt Telecom Radio Electr Dispositif de detection du bouclage d'une ligne d'abonne pendant la sonnerie
IT1128374B (it) * 1980-02-19 1986-05-28 Cselt Centro Studi Lab Telecom Circuito telefonico per la generazione del ritmo di suoneria ed il riconoscimento dello sgancio
US4396805A (en) * 1981-09-21 1983-08-02 Siemens Corporation Ring trip detector for a subscriber line interface circuit
IT1155661B (it) * 1982-03-24 1987-01-28 Cselt Centro Studi Lab Telecom Circuito elettronico per la rivelazione dello sgancio del microtelefono in presenza della corrente di chiamata

Also Published As

Publication number Publication date
ES8600591A1 (es) 1985-10-16
DE143435T1 (de) 1987-05-21
US4677664A (en) 1987-06-30
EP0143435A3 (en) 1987-06-16
DE3484121D1 (de) 1991-03-28
JPH0710083B2 (ja) 1995-02-01
EP0143435B1 (en) 1991-02-20
JPS60152161A (ja) 1985-08-10
IT8323832A0 (it) 1983-11-23
EP0143435A2 (en) 1985-06-05
BR8405956A (pt) 1985-09-10
ES537753A0 (es) 1985-10-16
ATE60967T1 (de) 1991-03-15

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971129