DE3683358D1 - Energieversorgung fuer telefone. - Google Patents

Energieversorgung fuer telefone.

Info

Publication number
DE3683358D1
DE3683358D1 DE8686308640T DE3683358T DE3683358D1 DE 3683358 D1 DE3683358 D1 DE 3683358D1 DE 8686308640 T DE8686308640 T DE 8686308640T DE 3683358 T DE3683358 T DE 3683358T DE 3683358 D1 DE3683358 D1 DE 3683358D1
Authority
DE
Germany
Prior art keywords
transistor
supply
telephones
power supply
hook
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.)
Expired - Fee Related
Application number
DE8686308640T
Other languages
English (en)
Inventor
Peter Fred Blomley
Edward John Wemyss Whittaker
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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Application granted granted Critical
Publication of DE3683358D1 publication Critical patent/DE3683358D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations

Landscapes

  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Vending Machines For Individual Products (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Electric Cable Installation (AREA)
  • Telephone Function (AREA)
  • Meter Arrangements (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Filters And Equalizers (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Inorganic Insulating Materials (AREA)
DE8686308640T 1985-11-28 1986-11-05 Energieversorgung fuer telefone. Expired - Fee Related DE3683358D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8529348A GB2183964B (en) 1985-11-28 1985-11-28 Telephone power supply

Publications (1)

Publication Number Publication Date
DE3683358D1 true DE3683358D1 (de) 1992-02-20

Family

ID=10588936

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686308640T Expired - Fee Related DE3683358D1 (de) 1985-11-28 1986-11-05 Energieversorgung fuer telefone.

Country Status (12)

Country Link
US (1) US4748664A (de)
EP (1) EP0225069B1 (de)
JP (1) JPH0795788B2 (de)
AT (1) ATE71483T1 (de)
DE (1) DE3683358D1 (de)
DK (1) DK165614C (de)
ES (1) ES2028789T3 (de)
FI (1) FI85085C (de)
GB (1) GB2183964B (de)
IE (1) IE57578B1 (de)
NZ (1) NZ218248A (de)
PT (1) PT83829B (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8802945A (nl) * 1988-11-30 1990-06-18 Philips Nv Electronisch telefoontoestel.
DE3905031A1 (de) * 1989-02-18 1990-08-23 Bosch Gmbh Robert Schaltungsanordnung fuer eine fernsprechteilnehmerstation
US5381472A (en) * 1990-08-10 1995-01-10 Tamura Electric Works, Ltd. Power source control apparatus for telephone set
US5216710A (en) * 1991-01-07 1993-06-01 Winbond Electronics Corp. Liquid crystal display driver and power supply
US5327493B1 (en) * 1991-05-02 1997-10-14 Active Voice Inc Device for detecting tones on telephone lines
GB2289187B (en) * 1994-04-26 1999-01-20 Motorola Inc Telephone line interface circuit
GB2290674B (en) * 1994-06-20 1999-04-07 Motorola Inc Telephone apparatus for caller ID
US5790653A (en) * 1995-01-06 1998-08-04 Voicewaves, Inc. Line-powered detection of call progress tones
JP4459305B2 (ja) * 1995-11-29 2010-04-28 エヌエックスピー ビー ヴィ 有線通信用端末
DE19619610A1 (de) * 1996-05-15 1997-11-20 Bosch Gmbh Robert Fernsprechendgerät
EP0876726A2 (de) * 1996-09-26 1998-11-11 Koninklijke Philips Electronics N.V. Stromversorgungsschaltung, telekommunikationseinrichtung und verfahren zur vielfach-flankengleichstrom leistungsverwaltung
US6041114A (en) 1997-03-27 2000-03-21 Active Voice Corporation Telecommute server

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1031882A (en) * 1976-01-12 1978-05-23 Mevhibe G. Sencer Telephone speech network for electronic sidetone suppression
FR2366755A1 (fr) * 1976-07-27 1978-04-28 Cit Alcatel Telealimentation d'un equipement situe a l'extremite d'une ligne telephonique, cote abonne
US4233474A (en) * 1978-01-10 1980-11-11 Nippon Electric Co., Ltd. Telephone transmitter amplifier
DE2931456C2 (de) * 1979-08-02 1982-10-28 Siemens AG, 1000 Berlin und 8000 München Parallelregelschaltung
FR2492187A1 (fr) * 1980-10-15 1982-04-16 Trt Telecom Radio Electr Dispositif destine a alimenter instantanement un circuit de charge connecte a ses bornes de sortie des qu'une source d'alimentation est connectee a ses bornes d'entree
GB2126052B (en) * 1982-08-25 1985-12-18 Philips Electronic Associated Telephone circuit
GB2126047A (en) * 1982-08-25 1984-03-14 Philips Electronic Associated Telephone circuit
US4680789A (en) * 1985-02-26 1987-07-14 U.S. Philips Corporation Audio transmission circuit comprising a transmit amplifier in the form of a line voltage stabilizer

Also Published As

Publication number Publication date
GB8529348D0 (en) 1986-01-02
DK165614B (da) 1992-12-21
FI85085C (fi) 1992-02-25
EP0225069B1 (de) 1992-01-08
FI864553A0 (fi) 1986-11-10
JPH0795788B2 (ja) 1995-10-11
DK165614C (da) 1993-05-03
PT83829A (fr) 1986-12-01
FI85085B (fi) 1991-11-15
DK555686D0 (da) 1986-11-20
IE862984L (en) 1987-05-28
DK555686A (da) 1987-05-29
NZ218248A (en) 1989-03-29
GB2183964A (en) 1987-06-10
US4748664A (en) 1988-05-31
ATE71483T1 (de) 1992-01-15
FI864553A (fi) 1987-05-29
GB2183964B (en) 1989-10-11
EP0225069A2 (de) 1987-06-10
ES2028789T3 (es) 1992-07-16
EP0225069A3 (en) 1988-07-20
JPS62131657A (ja) 1987-06-13
IE57578B1 (en) 1992-12-16
PT83829B (pt) 1993-01-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee