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AU3444478A - Loop detector - Google Patents

Loop detector

Info

Publication number
AU3444478A
AU3444478A AU34444/78A AU3444478A AU3444478A AU 3444478 A AU3444478 A AU 3444478A AU 34444/78 A AU34444/78 A AU 34444/78A AU 3444478 A AU3444478 A AU 3444478A AU 3444478 A AU3444478 A AU 3444478A
Authority
AU
Australia
Prior art keywords
loop detector
detector
loop
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
AU34444/78A
Inventor
Robert Bertold Buchner
Einar Andreas Aagaard
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of AU3444478A publication Critical patent/AU3444478A/en
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)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
AU34444/78A 1977-03-28 1978-03-23 Loop detector Pending AU3444478A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7703293A NL7703293A (en) 1977-03-28 1977-03-28 LOOP DETECTOR FOR DETECTING THE CLOSING OF A SUBSCRIBER LOOP DURING THE WAKE UP THROUGH FAST POLARITY EXCHANGES.

Publications (1)

Publication Number Publication Date
AU3444478A true AU3444478A (en) 1979-09-27

Family

ID=19828248

Family Applications (1)

Application Number Title Priority Date Filing Date
AU34444/78A Pending AU3444478A (en) 1977-03-28 1978-03-23 Loop detector

Country Status (8)

Country Link
JP (1) JPS53120207A (en)
AU (1) AU3444478A (en)
BE (1) BE865387A (en)
BR (1) BR7801834A (en)
DE (1) DE2811389A1 (en)
FR (1) FR2386209A1 (en)
NL (1) NL7703293A (en)
SE (1) SE7803369L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1128374B (en) * 1980-02-19 1986-05-28 Cselt Centro Studi Lab Telecom TELEPHONE CIRCUIT FOR THE GENERATION OF THE RINGTONE RHYTHM AND THE DETECTION OF THE RELEASE
DE3214624C2 (en) * 1982-04-20 1986-05-28 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement for evaluating subscriber loop states in telephone systems, in particular in telephone branch exchange systems
DE3545574A1 (en) * 1985-12-21 1987-07-02 Philips Patentverwaltung METHOD AND CIRCUIT ARRANGEMENT FOR EVALUATING THE OUTPUT SIGNALS OF CURRENT FLOW DETECTORS IN TELECOMMUNICATION SYSTEMS

Also Published As

Publication number Publication date
NL7703293A (en) 1978-10-02
JPS53120207A (en) 1978-10-20
SE7803369L (en) 1978-09-29
BE865387A (en) 1978-09-28
BR7801834A (en) 1978-12-26
FR2386209A1 (en) 1978-10-27
DE2811389A1 (en) 1978-10-05

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