DE69529275D1 - Verfahren und anordnung zur erzeugung eines rufsignals - Google Patents

Verfahren und anordnung zur erzeugung eines rufsignals

Info

Publication number
DE69529275D1
DE69529275D1 DE69529275T DE69529275T DE69529275D1 DE 69529275 D1 DE69529275 D1 DE 69529275D1 DE 69529275 T DE69529275 T DE 69529275T DE 69529275 T DE69529275 T DE 69529275T DE 69529275 D1 DE69529275 D1 DE 69529275D1
Authority
DE
Germany
Prior art keywords
subscriber line
current
generating
input terminal
interface circuit
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 - Lifetime
Application number
DE69529275T
Other languages
English (en)
Other versions
DE69529275T2 (de
Inventor
Torbjoern Randahl
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.)
Intel Germany Holding GmbH
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of DE69529275D1 publication Critical patent/DE69529275D1/de
Application granted granted Critical
Publication of DE69529275T2 publication Critical patent/DE69529275T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Burglar Alarm Systems (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Telephonic Communication Services (AREA)
DE69529275T 1994-01-21 1995-01-19 Verfahren und anordnung zur erzeugung eines rufsignals Expired - Lifetime DE69529275T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9400185A SE502276C2 (sv) 1994-01-21 1994-01-21 Förfarande och anordning för generering av en ringsignal
PCT/SE1995/000047 WO1995020290A1 (en) 1994-01-21 1995-01-19 A method and an arrangement for generating a ringing signal

Publications (2)

Publication Number Publication Date
DE69529275D1 true DE69529275D1 (de) 2003-02-06
DE69529275T2 DE69529275T2 (de) 2003-08-28

Family

ID=20392646

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69529275T Expired - Lifetime DE69529275T2 (de) 1994-01-21 1995-01-19 Verfahren und anordnung zur erzeugung eines rufsignals

Country Status (15)

Country Link
US (1) US5553132A (de)
EP (1) EP0740881B1 (de)
JP (1) JP3457674B2 (de)
KR (1) KR100265481B1 (de)
CN (1) CN1083205C (de)
AT (1) ATE230537T1 (de)
BR (1) BR9506450A (de)
CA (1) CA2179387A1 (de)
DE (1) DE69529275T2 (de)
FI (1) FI962918A (de)
MX (1) MX9602380A (de)
NO (1) NO314870B1 (de)
SE (1) SE502276C2 (de)
TW (1) TW255085B (de)
WO (1) WO1995020290A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE506296C2 (sv) * 1995-12-01 1997-12-01 Ericsson Telefon Ab L M Förfarande och anordning för alstrande av en ringsignal
US6167135A (en) * 1995-12-01 2000-12-26 Telefonaktiebolaget Lm Ericsson Method and apparatus for generating a ringing signal
CN1063305C (zh) * 1998-08-15 2001-03-14 深圳市华为电气股份有限公司 中大功率铃流变换器的次级功率管驱动电路
CN1087546C (zh) * 1998-08-15 2002-07-10 深圳市安圣电气有限公司 小功率铃流发生器的次级信号切换电路
CN1057183C (zh) * 1998-08-15 2000-10-04 深圳市华为电气股份有限公司 铃流发生器的缓起动与过流保护电路
US6282238B1 (en) 1999-05-28 2001-08-28 3Com Corporation Adapter card that selects between an ISDN interface and an analog modem interface

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3689700A (en) * 1970-09-21 1972-09-05 Lear Siegler Inc Subscriber loop extension unit
US3723662A (en) * 1971-12-09 1973-03-27 Gte Automatic Electric Lab Inc D.c. compensated subscriber interface transformer circuit for telephone system
IT1079588B (it) * 1977-02-14 1985-05-13 Sits Soc It Telecom Siemens Generatore di chiamata statico per sistemi di telecomunicazioni
NL8000859A (nl) * 1980-02-12 1981-09-01 Philips Nv Inrichting voor het toevoeren van een wekspanning aan een abonneelijn.
US4431868A (en) * 1981-07-09 1984-02-14 International Telephone And Telegraph Corporation Solid state telephone line interface circuit with ringing capability
SE453240B (sv) * 1986-05-06 1988-01-18 Ericsson Telefon Ab L M Anordning i ett telekommunikationssystem for att strommata en telefonapparat

Also Published As

Publication number Publication date
WO1995020290A1 (en) 1995-07-27
EP0740881B1 (de) 2003-01-02
NO962960L (no) 1996-07-15
SE9400185L (sv) 1995-07-22
FI962918A0 (fi) 1996-07-19
CN1083205C (zh) 2002-04-17
MX9602380A (es) 1997-04-30
NO314870B1 (no) 2003-06-02
EP0740881A1 (de) 1996-11-06
KR100265481B1 (ko) 2000-09-15
TW255085B (de) 1995-08-21
JPH09508244A (ja) 1997-08-19
ATE230537T1 (de) 2003-01-15
SE9400185D0 (sv) 1994-01-21
CA2179387A1 (en) 1995-07-27
JP3457674B2 (ja) 2003-10-20
FI962918A (fi) 1996-07-19
DE69529275T2 (de) 2003-08-28
US5553132A (en) 1996-09-03
SE502276C2 (sv) 1995-09-25
BR9506450A (pt) 1997-09-02
NO962960D0 (no) 1996-07-15
CN1138399A (zh) 1996-12-18

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: INFINEON TECHNOLOGIES AG, 81669 MUENCHEN, DE

8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: LANTIQ DEUTSCHLAND GMBH, 85579 NEUBIBERG, DE