SE507739C2 - Anordning vid en linjekrets för mätning av linjespänning - Google Patents

Anordning vid en linjekrets för mätning av linjespänning

Info

Publication number
SE507739C2
SE507739C2 SE9604099A SE9604099A SE507739C2 SE 507739 C2 SE507739 C2 SE 507739C2 SE 9604099 A SE9604099 A SE 9604099A SE 9604099 A SE9604099 A SE 9604099A SE 507739 C2 SE507739 C2 SE 507739C2
Authority
SE
Sweden
Prior art keywords
line
voltage
transistor
control processor
detector output
Prior art date
Application number
SE9604099A
Other languages
English (en)
Swedish (sv)
Other versions
SE9604099L (sv
SE9604099D0 (sv
Inventor
Hans Eriksson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE9604099A priority Critical patent/SE507739C2/sv
Publication of SE9604099D0 publication Critical patent/SE9604099D0/xx
Priority to TW086104515A priority patent/TW362310B/zh
Priority to US08/961,018 priority patent/US6263076B1/en
Priority to CNB971994250A priority patent/CN1160926C/zh
Priority to KR1019997004081A priority patent/KR100356650B1/ko
Priority to DE69730610T priority patent/DE69730610T2/de
Priority to PCT/SE1997/001857 priority patent/WO1998021868A2/fr
Priority to AU49745/97A priority patent/AU4974597A/en
Priority to CA002271108A priority patent/CA2271108A1/fr
Priority to JP52245898A priority patent/JP2001504301A/ja
Priority to EP97912620A priority patent/EP0928533B1/fr
Publication of SE9604099L publication Critical patent/SE9604099L/
Publication of SE507739C2 publication Critical patent/SE507739C2/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
    • H04M3/305—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop testing of physical copper line parameters, e.g. capacitance or resistance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/76—Compensating for differences in line impedance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/005—Interface circuits for subscriber lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
SE9604099A 1996-11-08 1996-11-08 Anordning vid en linjekrets för mätning av linjespänning SE507739C2 (sv)

Priority Applications (11)

Application Number Priority Date Filing Date Title
SE9604099A SE507739C2 (sv) 1996-11-08 1996-11-08 Anordning vid en linjekrets för mätning av linjespänning
TW086104515A TW362310B (en) 1996-11-08 1997-04-09 Arrangement in a subscriber line interface circuit
US08/961,018 US6263076B1 (en) 1996-11-08 1997-10-30 Arrangement in a subscriber line interface circuit
EP97912620A EP0928533B1 (fr) 1996-11-08 1997-11-06 Configuration de circuit d'interface de ligne d'abonne
KR1019997004081A KR100356650B1 (ko) 1996-11-08 1997-11-06 가입자 라인 인터페이스 회로의 장치
CNB971994250A CN1160926C (zh) 1996-11-08 1997-11-06 用户线接口电路中的装置
DE69730610T DE69730610T2 (de) 1996-11-08 1997-11-06 Einrichtung für eine teilnehmerleitungsschnittstellenschaltung
PCT/SE1997/001857 WO1998021868A2 (fr) 1996-11-08 1997-11-06 Configuration de circuit d'interface de ligne d'abonne
AU49745/97A AU4974597A (en) 1996-11-08 1997-11-06 Arrangement in a subscriber line interface circuit
CA002271108A CA2271108A1 (fr) 1996-11-08 1997-11-06 Configuration de circuit d'interface de ligne d'abonne
JP52245898A JP2001504301A (ja) 1996-11-08 1997-11-06 加入者回線インターフェース回路の構成

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9604099A SE507739C2 (sv) 1996-11-08 1996-11-08 Anordning vid en linjekrets för mätning av linjespänning

Publications (3)

Publication Number Publication Date
SE9604099D0 SE9604099D0 (sv) 1996-11-08
SE9604099L SE9604099L (sv) 1998-05-09
SE507739C2 true SE507739C2 (sv) 1998-07-06

Family

ID=20404544

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9604099A SE507739C2 (sv) 1996-11-08 1996-11-08 Anordning vid en linjekrets för mätning av linjespänning

Country Status (11)

Country Link
US (1) US6263076B1 (fr)
EP (1) EP0928533B1 (fr)
JP (1) JP2001504301A (fr)
KR (1) KR100356650B1 (fr)
CN (1) CN1160926C (fr)
AU (1) AU4974597A (fr)
CA (1) CA2271108A1 (fr)
DE (1) DE69730610T2 (fr)
SE (1) SE507739C2 (fr)
TW (1) TW362310B (fr)
WO (1) WO1998021868A2 (fr)

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4004102A (en) 1975-08-08 1977-01-18 Bell Telephone Laboratories, Incorporated Automatic impedance modification of transmission lines
US4048551A (en) * 1975-12-05 1977-09-13 Bell Telephone Laboratories, Incorporated Battery charging circuit
US4015091A (en) * 1975-12-05 1977-03-29 Bell Telephone Laboratories, Incorporated Telephone ringing generators
US4025729A (en) * 1975-12-05 1977-05-24 Bell Telephone Laboratories, Incorporated Telephone ringing control circuits
US4056693A (en) * 1975-12-05 1977-11-01 Bell Telephone Laboratories, Incorporated Voltage and current controlled converter for telephone ringing
US4947427A (en) * 1987-05-15 1990-08-07 Northern Telecom Limited Protection arrangement for a telephone subscriber line interface circuit
US4894860A (en) * 1988-06-07 1990-01-16 Tie/Communications, Inc. Trunk interface circuitry for telephone systems
JPH02161858A (ja) 1988-12-14 1990-06-21 Ricoh Co Ltd 回線電流値計測回路および測音防止回路
DE59005114D1 (de) 1990-01-29 1994-04-28 Siemens Ag Verfahren und Anordnung zur Bildung des Leitungsabschlusses einer Telefonleitung.
SE465799B (sv) * 1990-03-15 1991-10-28 Ericsson Telefon Ab L M Anordning foer reducerad effektmatning till en abonnentlinje
US5661794A (en) * 1992-04-16 1997-08-26 Northern Telecom Limited Telephone line interface circuit with voltage control
US5193108A (en) * 1991-10-04 1993-03-09 Leviton Manufacturing Co., Inc. Portable telecommunications test instrument with inductive probe circuit
JPH05176354A (ja) * 1991-12-20 1993-07-13 Fujitsu Ltd 加入者インタフェース回路
GB9213992D0 (en) * 1992-07-01 1992-08-12 Raychem Ltd Remotely actuated switch and protection circuit
GB9218134D0 (en) * 1992-08-26 1992-10-14 Raychem Sa Nv Communication channel switching arrangement
US5388153A (en) * 1993-03-26 1995-02-07 At&T Corp. Apparatus and method for detecting telephone line status
US5440610A (en) * 1993-04-14 1995-08-08 Harris Corporation Mechanism for controlling operation of telephone metallic loop measurement device in dependence upon rate of settling of telephone line voltage
DE69318551T2 (de) * 1993-07-29 1998-09-10 St Microelectronics Srl Integrierte Teilnehmerleitungsschnittstellenschaltung mit langsamem Polaritätsumschalter
US5422939A (en) * 1993-08-05 1995-06-06 Schlumberger Industries, Inc. Parallel off-hook detection for both line-available and phone pick-up detection
GB2289188B (en) * 1994-04-26 1998-09-09 Motorola Inc Telephone line interface cicuit
US5553138A (en) * 1994-05-13 1996-09-03 Compaq Computer Corporation Telephone line sourced power supply
US5771285A (en) * 1996-02-07 1998-06-23 Lucent Technologies Circuit and method for detecting telephone line status and telephone instrument embodying the same

Also Published As

Publication number Publication date
WO1998021868A3 (fr) 1998-07-16
KR100356650B1 (ko) 2002-10-18
DE69730610T2 (de) 2005-09-15
JP2001504301A (ja) 2001-03-27
CN1160926C (zh) 2004-08-04
WO1998021868A2 (fr) 1998-05-22
EP0928533B1 (fr) 2004-09-08
SE9604099L (sv) 1998-05-09
DE69730610D1 (de) 2004-10-14
KR20000053147A (ko) 2000-08-25
TW362310B (en) 1999-06-21
AU4974597A (en) 1998-06-03
EP0928533A2 (fr) 1999-07-14
CN1235726A (zh) 1999-11-17
CA2271108A1 (fr) 1998-05-22
US6263076B1 (en) 2001-07-17
SE9604099D0 (sv) 1996-11-08

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Legal Events

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NUG Patent has lapsed