GR880100377A - Συσκευη για την επιτευξη ελεγξιμης συνθετης αντιστασης γραμμης τερματισμου - Google Patents

Συσκευη για την επιτευξη ελεγξιμης συνθετης αντιστασης γραμμης τερματισμου

Info

Publication number
GR880100377A
GR880100377A GR880100377A GR880100377A GR880100377A GR 880100377 A GR880100377 A GR 880100377A GR 880100377 A GR880100377 A GR 880100377A GR 880100377 A GR880100377 A GR 880100377A GR 880100377 A GR880100377 A GR 880100377A
Authority
GR
Greece
Prior art keywords
circuit
subscriber line
controllable
slic
impedance
Prior art date
Application number
GR880100377A
Other languages
Greek (el)
English (en)
Inventor
Gunnar Anders Eriksson
Nils-Olof Johannesson
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of GR880100377A publication Critical patent/GR880100377A/el

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/005—Interface circuits for subscriber lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H04B1/586—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa using an electronic circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Networks Using Active Elements (AREA)
  • Devices For Supply Of Signal Current (AREA)
GR880100377A 1987-06-15 1988-06-13 Συσκευη για την επιτευξη ελεγξιμης συνθετης αντιστασης γραμμης τερματισμου GR880100377A (el)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8702486A SE457923B (sv) 1987-06-15 1987-06-15 Anordning foer att aastadkomma en styrbar linjeavslutningsimpedans

Publications (1)

Publication Number Publication Date
GR880100377A true GR880100377A (el) 1989-03-08

Family

ID=20368864

Family Applications (1)

Application Number Title Priority Date Filing Date
GR880100377A GR880100377A (el) 1987-06-15 1988-06-13 Συσκευη για την επιτευξη ελεγξιμης συνθετης αντιστασης γραμμης τερματισμου

Country Status (7)

Country Link
EP (1) EP0321540A1 (fr)
AU (1) AU1957688A (fr)
ES (1) ES2008537A6 (fr)
GR (1) GR880100377A (fr)
PT (1) PT87686A (fr)
SE (1) SE457923B (fr)
WO (1) WO1988010539A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5073924A (en) * 1990-05-01 1991-12-17 Frisby Kenneth G Telephone line noise filter apparatus
JPH04280597A (ja) * 1991-03-08 1992-10-06 Nec Corp 加入者回路
IT1259009B (it) * 1992-07-24 1996-03-11 Italtel Telematica Metodo e dispositivo per l'adattamento delle impedenze della terminazione di utente e dell'attacco di utente alla impedenza caratteristica della linea telefonica di utente
ATE187029T1 (de) * 1993-09-02 1999-12-15 Siemens Ag Schaltungsanordnung zur erzeugung einer variablen leitungsabschlussimpedanz
AU681169B2 (en) * 1993-10-01 1997-08-21 Alcatel Australia Limited Line termination circuit
EP0693846A3 (fr) * 1994-06-24 1999-05-26 Harris Corporation Circuit d'interface de ligne d'abonné téléphonique et méthode
US5583934A (en) * 1995-03-03 1996-12-10 Advanced Micro Devices, Inc. DC level control for an electronic telephone line card
SE511825C2 (sv) * 1998-03-31 1999-12-06 Ericsson Telefon Ab L M Förfarande och anordning i en analog linjekrets
KR100408739B1 (ko) * 2001-12-04 2003-12-11 엘지이노텍 주식회사 교환기 가입자 보드용 아날로그 슬릭 회로
US7062037B2 (en) 2002-04-30 2006-06-13 Texas Instruments Incorporated Generic line impedance matching circuit using decomposed configurable transfer functions

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981003728A1 (fr) * 1980-06-18 1981-12-24 Advanced Micro Devices Inc Dispositif de circuit de traitement audio d'une ligne d'abonne
EP0163298A2 (fr) * 1984-05-30 1985-12-04 Hitachi, Ltd. Codeur/décodeur MIC avec conversion deux fils/quatre fils
WO1987003440A1 (fr) * 1985-11-22 1987-06-04 British Telecommunications Public Limited Company Circuit d'interface

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5895488A (ja) * 1981-12-02 1983-06-07 Hitachi Ltd ライン回路

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981003728A1 (fr) * 1980-06-18 1981-12-24 Advanced Micro Devices Inc Dispositif de circuit de traitement audio d'une ligne d'abonne
EP0163298A2 (fr) * 1984-05-30 1985-12-04 Hitachi, Ltd. Codeur/décodeur MIC avec conversion deux fils/quatre fils
WO1987003440A1 (fr) * 1985-11-22 1987-06-04 British Telecommunications Public Limited Company Circuit d'interface

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CLAIMS SEARCHED: ALL *

Also Published As

Publication number Publication date
AU1957688A (en) 1989-01-19
WO1988010539A1 (fr) 1988-12-29
SE8702486L (sv) 1988-12-16
PT87686A (pt) 1989-05-31
EP0321540A1 (fr) 1989-06-28
SE457923B (sv) 1989-02-06
ES2008537A6 (es) 1989-07-16
SE8702486D0 (sv) 1987-06-15

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