SE7803369L - Slingdetektor for att detektera slutningen av en abonnentslinga under uppringning medelst snabba polaritetsvexlingar - Google Patents

Slingdetektor for att detektera slutningen av en abonnentslinga under uppringning medelst snabba polaritetsvexlingar

Info

Publication number
SE7803369L
SE7803369L SE7803369A SE7803369A SE7803369L SE 7803369 L SE7803369 L SE 7803369L SE 7803369 A SE7803369 A SE 7803369A SE 7803369 A SE7803369 A SE 7803369A SE 7803369 L SE7803369 L SE 7803369L
Authority
SE
Sweden
Prior art keywords
detect
loop
during call
polarity changes
detector
Prior art date
Application number
SE7803369A
Other languages
English (en)
Inventor
R B Buchner
E A Aagaard
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of SE7803369L publication Critical patent/SE7803369L/sv

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)
SE7803369A 1977-03-28 1978-03-23 Slingdetektor for att detektera slutningen av en abonnentslinga under uppringning medelst snabba polaritetsvexlingar SE7803369L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7703293A NL7703293A (nl) 1977-03-28 1977-03-28 Lusdetector voor het detecteren van het slui- ten van een abonneelus tijdens het wekken door middel van snelle polariteitswisselingen.

Publications (1)

Publication Number Publication Date
SE7803369L true SE7803369L (sv) 1978-09-29

Family

ID=19828248

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7803369A SE7803369L (sv) 1977-03-28 1978-03-23 Slingdetektor for att detektera slutningen av en abonnentslinga under uppringning medelst snabba polaritetsvexlingar

Country Status (8)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE3214624C2 (de) * 1982-04-20 1986-05-28 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur Auswertung von Teilnehmerschleifenzuständen in Fernsprechanlagen, insbesondere in Fernsprechnebenstellenanlagen
DE3545574A1 (de) * 1985-12-21 1987-07-02 Philips Patentverwaltung Verfahren und schaltungsanordnung zur auswertung der ausgangssignale von stromflussdetektoren in fernmeldeanlagen

Also Published As

Publication number Publication date
JPS53120207A (en) 1978-10-20
NL7703293A (nl) 1978-10-02
DE2811389A1 (de) 1978-10-05
AU3444478A (en) 1979-09-27
BE865387A (fr) 1978-09-28
BR7801834A (pt) 1978-12-26
FR2386209A1 (fr) 1978-10-27

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