FI961917A - Förfarande och arrangemang för höjning av onhook-spänning - Google Patents

Förfarande och arrangemang för höjning av onhook-spänning Download PDF

Info

Publication number
FI961917A
FI961917A FI961917A FI961917A FI961917A FI 961917 A FI961917 A FI 961917A FI 961917 A FI961917 A FI 961917A FI 961917 A FI961917 A FI 961917A FI 961917 A FI961917 A FI 961917A
Authority
FI
Finland
Prior art keywords
onhook
voltage
increasing
arrangement
onhook voltage
Prior art date
Application number
FI961917A
Other languages
English (en)
Finnish (fi)
Other versions
FI961917A0 (sv
FI102934B (sv
FI102934B1 (sv
Inventor
Kauko Varanka
Arto Salo
Original Assignee
Nokia Telecommunications Oy
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 Nokia Telecommunications Oy filed Critical Nokia Telecommunications Oy
Priority to FI961917A priority Critical patent/FI102934B1/sv
Publication of FI961917A0 publication Critical patent/FI961917A0/sv
Priority to PCT/FI1997/000268 priority patent/WO1997042750A1/en
Priority to AU26400/97A priority patent/AU2640097A/en
Priority to EP97918178A priority patent/EP0894398A1/en
Priority to CN 97193563 priority patent/CN1215525A/zh
Publication of FI961917A publication Critical patent/FI961917A/sv
Application granted granted Critical
Publication of FI102934B publication Critical patent/FI102934B/sv
Publication of FI102934B1 publication Critical patent/FI102934B1/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/001—Current supply source at the exchanger providing current to substations
    • H04M19/008—Using DC/DC converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Telephone Function (AREA)
FI961917A 1996-05-06 1996-05-06 Förfarande och arrangemang för höjning av onhook-spänning FI102934B1 (sv)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FI961917A FI102934B1 (sv) 1996-05-06 1996-05-06 Förfarande och arrangemang för höjning av onhook-spänning
PCT/FI1997/000268 WO1997042750A1 (en) 1996-05-06 1997-05-05 Method and arrangement for increasing onhook voltage
AU26400/97A AU2640097A (en) 1996-05-06 1997-05-05 Method and arrangement for increasing onhook voltage
EP97918178A EP0894398A1 (en) 1996-05-06 1997-05-05 Method and arrangement for increasing onhook voltage
CN 97193563 CN1215525A (zh) 1996-05-06 1997-05-05 提高挂机电压的方法和方案

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI961917 1996-05-06
FI961917A FI102934B1 (sv) 1996-05-06 1996-05-06 Förfarande och arrangemang för höjning av onhook-spänning

Publications (4)

Publication Number Publication Date
FI961917A0 FI961917A0 (sv) 1996-05-06
FI961917A true FI961917A (sv) 1997-11-07
FI102934B FI102934B (sv) 1999-03-15
FI102934B1 FI102934B1 (sv) 1999-03-15

Family

ID=8545963

Family Applications (1)

Application Number Title Priority Date Filing Date
FI961917A FI102934B1 (sv) 1996-05-06 1996-05-06 Förfarande och arrangemang för höjning av onhook-spänning

Country Status (5)

Country Link
EP (1) EP0894398A1 (sv)
CN (1) CN1215525A (sv)
AU (1) AU2640097A (sv)
FI (1) FI102934B1 (sv)
WO (1) WO1997042750A1 (sv)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3757052A (en) * 1971-10-19 1973-09-04 Electro Dynamics & Telecom Ltd Telephone line extender with test thru capability
CA1157175A (en) * 1981-02-20 1983-11-15 Mitel Corporation Power saving line circuit

Also Published As

Publication number Publication date
WO1997042750A1 (en) 1997-11-13
EP0894398A1 (en) 1999-02-03
CN1215525A (zh) 1999-04-28
FI961917A0 (sv) 1996-05-06
FI102934B (sv) 1999-03-15
FI102934B1 (sv) 1999-03-15
AU2640097A (en) 1997-11-26

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