GB2126047A - Telephone circuit - Google Patents

Telephone circuit Download PDF

Info

Publication number
GB2126047A
GB2126047A GB08224347A GB8224347A GB2126047A GB 2126047 A GB2126047 A GB 2126047A GB 08224347 A GB08224347 A GB 08224347A GB 8224347 A GB8224347 A GB 8224347A GB 2126047 A GB2126047 A GB 2126047A
Authority
GB
United Kingdom
Prior art keywords
circuit
line
transistor
capacitor
voltage
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.)
Withdrawn
Application number
GB08224347A
Other languages
English (en)
Inventor
Kennith Neville Burgin
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Priority to GB08224347A priority Critical patent/GB2126047A/en
Priority to US06/514,401 priority patent/US4506114A/en
Priority to EP83201133A priority patent/EP0102111B1/en
Priority to DE8383201133T priority patent/DE3381983D1/de
Priority to JP58152592A priority patent/JPS5955665A/ja
Publication of GB2126047A publication Critical patent/GB2126047A/en
Withdrawn legal-status Critical Current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

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
GB08224347A 1982-08-25 1982-08-25 Telephone circuit Withdrawn GB2126047A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB08224347A GB2126047A (en) 1982-08-25 1982-08-25 Telephone circuit
US06/514,401 US4506114A (en) 1982-08-25 1983-07-18 Telephone circuit
EP83201133A EP0102111B1 (en) 1982-08-25 1983-08-01 Telephone circuit
DE8383201133T DE3381983D1 (de) 1982-08-25 1983-08-01 Fernsprechschaltung.
JP58152592A JPS5955665A (ja) 1982-08-25 1983-08-23 電話機通話／信号回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08224347A GB2126047A (en) 1982-08-25 1982-08-25 Telephone circuit

Publications (1)

Publication Number Publication Date
GB2126047A true GB2126047A (en) 1984-03-14

Family

ID=10532501

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08224347A Withdrawn GB2126047A (en) 1982-08-25 1982-08-25 Telephone circuit

Country Status (5)

Country Link
US (1) US4506114A (enExample)
EP (1) EP0102111B1 (enExample)
JP (1) JPS5955665A (enExample)
DE (1) DE3381983D1 (enExample)
GB (1) GB2126047A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4404264C1 (de) * 1994-02-10 1995-04-06 Siemens Ag Schaltungsanordnung zum komplexen Leitungsabschluß einer Zweidrahtleitung in einer Kommunikationseinrichtung

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2575625B1 (fr) * 1984-12-27 1987-01-30 Thomson Csf Poste telephonique d'abonne a haut-parleur d'ecoute amplifiee avec reduction de gain en cas d'alimentation insuffisante
GB2183964B (en) 1985-11-28 1989-10-11 Stc Plc Telephone power supply
US4791638A (en) * 1986-10-13 1988-12-13 Pioneer Electronic Corporation Signal processsing circuit for a telephone set
EP0363362A4 (en) * 1987-04-09 1991-03-20 Standard Telephones And Cables Pty. Limited Telephone subset circuit arrangement
US4819678A (en) * 1988-06-01 1989-04-11 Nolan James F Portable cleaner
EP0593115A3 (en) * 1992-10-14 1999-02-17 Koninklijke Philips Electronics N.V. Electronic hook switch for a subscriber set
US5771278A (en) * 1993-12-27 1998-06-23 Cirrus Logic, Inc. Method and apparatus for minimizing system oscillations caused by acoustical coupling
DE19636954B4 (de) * 1996-09-11 2005-08-18 Infineon Technologies Ag Teilnehmerschaltung
CN1301449A (zh) * 1998-05-04 2001-06-27 皇家菲利浦电子有限公司 一种带有ac与dc线路调整的电话线接口电路
JP2013192195A (ja) * 2012-02-16 2013-09-26 Denso Corp 音響装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3780228A (en) * 1972-03-01 1973-12-18 Gte Automatic Electric Lab Inc Automatic disconnect circuit for reducing dial pulse distortion caused by subscriber carrier equipment
AT359565B (de) * 1978-09-20 1980-11-25 Siemens Ag Oesterreich Schaltungsanordnung fuer die speisung elektroni- scher bauteile aus einem ueber die teilnehmer- anschlussleitung aufladbaren ladungsspeicher
DE2931456C2 (de) * 1979-08-02 1982-10-28 Siemens AG, 1000 Berlin und 8000 München Parallelregelschaltung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4404264C1 (de) * 1994-02-10 1995-04-06 Siemens Ag Schaltungsanordnung zum komplexen Leitungsabschluß einer Zweidrahtleitung in einer Kommunikationseinrichtung

Also Published As

Publication number Publication date
US4506114A (en) 1985-03-19
EP0102111B1 (en) 1990-11-07
JPH0420302B2 (enExample) 1992-04-02
DE3381983D1 (de) 1990-12-13
JPS5955665A (ja) 1984-03-30
EP0102111A3 (en) 1986-05-21
EP0102111A2 (en) 1984-03-07

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)