BR7801834A - CIRCUIT DETECTOR - Google Patents

CIRCUIT DETECTOR

Info

Publication number
BR7801834A
BR7801834A BR7801834A BR7801834A BR7801834A BR 7801834 A BR7801834 A BR 7801834A BR 7801834 A BR7801834 A BR 7801834A BR 7801834 A BR7801834 A BR 7801834A BR 7801834 A BR7801834 A BR 7801834A
Authority
BR
Brazil
Prior art keywords
circuit detector
detector
circuit
Prior art date
Application number
BR7801834A
Other languages
Portuguese (pt)
Inventor
R Buchner
E 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 BR7801834A publication Critical patent/BR7801834A/en

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)
BR7801834A 1977-03-28 1978-03-27 CIRCUIT DETECTOR BR7801834A (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
BR7801834A true BR7801834A (en) 1978-12-26

Family

ID=19828248

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7801834A BR7801834A (en) 1977-03-28 1978-03-27 CIRCUIT 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
BE865387A (en) 1978-09-28
SE7803369L (en) 1978-09-29
JPS53120207A (en) 1978-10-20
AU3444478A (en) 1979-09-27
NL7703293A (en) 1978-10-02
DE2811389A1 (en) 1978-10-05
FR2386209A1 (en) 1978-10-27

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