CA2274525A1 - Method and device for detecting a ringtrip - Google Patents

Method and device for detecting a ringtrip Download PDF

Info

Publication number
CA2274525A1
CA2274525A1 CA002274525A CA2274525A CA2274525A1 CA 2274525 A1 CA2274525 A1 CA 2274525A1 CA 002274525 A CA002274525 A CA 002274525A CA 2274525 A CA2274525 A CA 2274525A CA 2274525 A1 CA2274525 A1 CA 2274525A1
Authority
CA
Canada
Prior art keywords
ring
counter
zero
phase difference
output
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.)
Abandoned
Application number
CA002274525A
Other languages
English (en)
French (fr)
Inventor
Bo Bokinge
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Individual
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
Priority claimed from SE9604545A external-priority patent/SE511917C2/sv
Application filed by Individual filed Critical Individual
Publication of CA2274525A1 publication Critical patent/CA2274525A1/en
Abandoned 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Measurement Of Current Or Voltage (AREA)
CA002274525A 1996-12-10 1997-11-18 Method and device for detecting a ringtrip Abandoned CA2274525A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9604545-5 1996-12-10
SE9604545A SE511917C2 (sv) 1996-12-10 1996-12-10 Förfarande för anordning för att detektera en ringbortkoppling
PCT/SE1997/001937 WO1998026573A2 (en) 1996-12-10 1997-11-18 Method and device for detecting a ringtrip

Publications (1)

Publication Number Publication Date
CA2274525A1 true CA2274525A1 (en) 1998-06-18

Family

ID=20404927

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002274525A Abandoned CA2274525A1 (en) 1996-12-10 1997-11-18 Method and device for detecting a ringtrip

Country Status (6)

Country Link
JP (1) JP2001506081A (zh)
KR (1) KR100518253B1 (zh)
CN (1) CN1156139C (zh)
CA (1) CA2274525A1 (zh)
DE (1) DE69734112T2 (zh)
TW (1) TW366639B (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110850151B (zh) * 2019-11-04 2022-04-12 易事特集团股份有限公司 过零判断方法和过零判断装置

Also Published As

Publication number Publication date
DE69734112D1 (de) 2005-10-06
KR20000069368A (ko) 2000-11-25
TW366639B (en) 1999-08-11
CN1245611A (zh) 2000-02-23
KR100518253B1 (ko) 2005-09-30
CN1156139C (zh) 2004-06-30
JP2001506081A (ja) 2001-05-08
DE69734112T2 (de) 2006-07-13

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