JPS5944160A - リンギング中のル−プ検出装置 - Google Patents

リンギング中のル−プ検出装置

Info

Publication number
JPS5944160A
JPS5944160A JP58140436A JP14043683A JPS5944160A JP S5944160 A JPS5944160 A JP S5944160A JP 58140436 A JP58140436 A JP 58140436A JP 14043683 A JP14043683 A JP 14043683A JP S5944160 A JPS5944160 A JP S5944160A
Authority
JP
Japan
Prior art keywords
signal
input
positive
ringing
voltage
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.)
Pending
Application number
JP58140436A
Other languages
English (en)
Japanese (ja)
Inventor
ピエ−ル・ア−ルブイ
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.)
Alcatel CIT SA
Nokia Inc
Original Assignee
Compagnie Industrielle de Telecommunication CIT Alcatel SA
Nokia 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 Compagnie Industrielle de Telecommunication CIT Alcatel SA, Nokia Inc filed Critical Compagnie Industrielle de Telecommunication CIT Alcatel SA
Publication of JPS5944160A publication Critical patent/JPS5944160A/ja
Pending legal-status Critical Current

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)
  • Devices For Supply Of Signal Current (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Manipulation Of Pulses (AREA)
JP58140436A 1982-07-30 1983-07-30 リンギング中のル−プ検出装置 Pending JPS5944160A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8213321A FR2531296B1 (fr) 1982-07-30 1982-07-30 Procede et dispositif de detection de boucle en phase sonnerie
FR8213321 1982-07-30

Publications (1)

Publication Number Publication Date
JPS5944160A true JPS5944160A (ja) 1984-03-12

Family

ID=9276482

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58140436A Pending JPS5944160A (ja) 1982-07-30 1983-07-30 リンギング中のル−プ検出装置

Country Status (9)

Country Link
US (1) US4540853A (enExample)
EP (1) EP0100514B1 (enExample)
JP (1) JPS5944160A (enExample)
CA (1) CA1205228A (enExample)
DE (1) DE3374642D1 (enExample)
FR (1) FR2531296B1 (enExample)
IE (1) IE54686B1 (enExample)
IN (1) IN160093B (enExample)
ZA (1) ZA835570B (enExample)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4731827A (en) * 1984-10-29 1988-03-15 David Systems, Inc. Interswitch line circuit
US4665547A (en) * 1984-11-02 1987-05-12 At&T Company Limiting amplifier for common mode feedback in telephone line feed circuits
US4712233A (en) * 1985-04-22 1987-12-08 Fairchild Camera & Instrument Corp. Monolithic telephone subscriber line interface circuit
US4731828A (en) * 1985-06-07 1988-03-15 Plessey Overseas Limited Ring trip detection in telecommunications exchanges
US4674117A (en) * 1985-08-29 1987-06-16 Gte Communication Systems Corporation Subscriber line circuit having an improved offhook supervision circuit
FR2605164A1 (fr) * 1986-10-08 1988-04-15 Cit Alcatel Dispositif de detection de boucle en mode sonnerie interne ou externe
US4742536A (en) * 1986-10-24 1988-05-03 Energy Innovations, Inc. Telephone monitor circuit and method
US4811389A (en) * 1987-11-12 1989-03-07 General Electric Company Parallel off hook detector for electronic remote data recorder
WO1990007834A1 (en) * 1988-12-24 1990-07-12 Alcatel N.V. Impedance synthesis multiple loop using filtering means
US5287404A (en) * 1990-12-20 1994-02-15 Northern Telecom Limited Telephone subscriber line voltage change detection
SE9400186D0 (sv) * 1994-01-21 1994-01-21 Ericsson Telefon Ab L M Förfarande i ett telekommunikationssystem
US5694465A (en) * 1995-03-16 1997-12-02 Advanced Micro Devices, Inc. Integrated ringer for short telephone lines
SE511917C2 (sv) * 1996-12-10 1999-12-13 Ericsson Telefon Ab L M Förfarande för anordning för att detektera en ringbortkoppling
US6489755B1 (en) * 2000-09-18 2002-12-03 Adtran, Inc. Active ripple and noise filter for telecommunication equipment powering
US7162028B2 (en) * 2001-08-29 2007-01-09 Intel Corporation Universal telephony interface polarity detector

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50104509A (enExample) * 1974-01-18 1975-08-18
JPS5261455A (en) * 1975-11-17 1977-05-20 Tokyo Electric Power Co Inc:The Integrator correction equipment
JPS5725759A (en) * 1980-07-23 1982-02-10 Fujitsu Ltd Ring tripping circuit

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA94162A (en) * 1905-04-14 1905-07-11 William Richard Stitt Loom
US3746798A (en) * 1972-05-23 1973-07-17 Gte Automatic Electric Lab Inc Electronic ring trip circuit
US3829619A (en) * 1972-12-29 1974-08-13 Stromberg Carlson Corp Telephone ring trip circuit
DE2359867C2 (de) * 1973-11-30 1975-10-23 Siemens Ag, 1000 Berlin Und 8000 Muenchen Schaltungsanordnung für wechselstromüberlagerte Gleichstromkreise in Fernmeldeinsbesondere Fernsprechanlagen
CH604453A5 (enExample) * 1976-06-25 1978-09-15 Ibm
US4132864A (en) * 1977-04-28 1979-01-02 International Business Machines Corporation Digital measurement of the DC value in an AC signal adapted to telephone off-hook detection
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
US4396805A (en) * 1981-09-21 1983-08-02 Siemens Corporation Ring trip detector for a subscriber line interface circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50104509A (enExample) * 1974-01-18 1975-08-18
JPS5261455A (en) * 1975-11-17 1977-05-20 Tokyo Electric Power Co Inc:The Integrator correction equipment
JPS5725759A (en) * 1980-07-23 1982-02-10 Fujitsu Ltd Ring tripping circuit

Also Published As

Publication number Publication date
US4540853A (en) 1985-09-10
DE3374642D1 (en) 1987-12-23
IE831812L (en) 1984-01-30
EP0100514B1 (fr) 1987-11-19
IN160093B (enExample) 1987-06-27
FR2531296B1 (fr) 1988-04-15
EP0100514A2 (fr) 1984-02-15
EP0100514A3 (en) 1985-04-03
IE54686B1 (en) 1990-01-03
ZA835570B (en) 1984-03-28
FR2531296A1 (fr) 1984-02-03
CA1205228A (fr) 1986-05-27

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