DE3370427D1 - Telephone ringing circuit realisable as an integrated circuit - Google Patents

Telephone ringing circuit realisable as an integrated circuit

Info

Publication number
DE3370427D1
DE3370427D1 DE8383401676T DE3370427T DE3370427D1 DE 3370427 D1 DE3370427 D1 DE 3370427D1 DE 8383401676 T DE8383401676 T DE 8383401676T DE 3370427 T DE3370427 T DE 3370427T DE 3370427 D1 DE3370427 D1 DE 3370427D1
Authority
DE
Germany
Prior art keywords
circuit
realisable
telephone ringing
integrated circuit
integrated
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
Application number
DE8383401676T
Other languages
English (en)
Inventor
Joel Serge Gerard Colardelle
Claude Paul Henri Lerouge
Nicole Jacqueline Rolande Loup
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.)
TDK Micronas GmbH
ITT Inc
Original Assignee
Deutsche ITT Industries GmbH
ITT Industries Inc
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 Deutsche ITT Industries GmbH, ITT Industries Inc filed Critical Deutsche ITT Industries GmbH
Application granted granted Critical
Publication of DE3370427D1 publication Critical patent/DE3370427D1/de
Expired 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
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
DE8383401676T 1983-08-18 1983-08-18 Telephone ringing circuit realisable as an integrated circuit Expired DE3370427D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP83401676A EP0134867B1 (de) 1983-08-18 1983-08-18 Monolithisch integrierbare Weckschaltung für Fernsprecher

Publications (1)

Publication Number Publication Date
DE3370427D1 true DE3370427D1 (en) 1987-04-23

Family

ID=8191435

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383401676T Expired DE3370427D1 (en) 1983-08-18 1983-08-18 Telephone ringing circuit realisable as an integrated circuit

Country Status (2)

Country Link
EP (1) EP0134867B1 (de)
DE (1) DE3370427D1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3632746C2 (de) * 1986-09-26 1995-04-13 Kommunikations Elektronik Schaltungsanordnung zur Erzeugung einer Wechselspannung
FR2693335B1 (fr) * 1992-07-02 1994-08-05 Matra Communication Circuit de sonnerie notamment pour poste telephonique.
CN114726959B (zh) * 2022-04-07 2024-06-25 苏州浪潮智能科技有限公司 一种信号振铃的消除电路及方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4146754A (en) * 1977-09-08 1979-03-27 Sam Rose Telephone signalling method and apparatus
GB2037128B (en) * 1978-11-20 1983-04-13 Texas Instruments Inc Electronic telephone on a chip

Also Published As

Publication number Publication date
EP0134867A1 (de) 1985-03-27
EP0134867B1 (de) 1987-03-18

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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