BR8801756A - Processo e disposicao para o ajuste das impedancias-imagem de linhas de assinantes de circuito hibridos programaveis - Google Patents

Processo e disposicao para o ajuste das impedancias-imagem de linhas de assinantes de circuito hibridos programaveis

Info

Publication number
BR8801756A
BR8801756A BR8801756A BR8801756A BR8801756A BR 8801756 A BR8801756 A BR 8801756A BR 8801756 A BR8801756 A BR 8801756A BR 8801756 A BR8801756 A BR 8801756A BR 8801756 A BR8801756 A BR 8801756A
Authority
BR
Brazil
Prior art keywords
image
arrangement
hybrid circuit
programmable hybrid
adjusting impedances
Prior art date
Application number
BR8801756A
Other languages
English (en)
Inventor
Robert Lechner
Moni Malek
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of BR8801756A publication Critical patent/BR8801756A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/03—Hybrid circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
BR8801756A 1987-04-14 1988-04-13 Processo e disposicao para o ajuste das impedancias-imagem de linhas de assinantes de circuito hibridos programaveis BR8801756A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3712662 1987-04-14

Publications (1)

Publication Number Publication Date
BR8801756A true BR8801756A (pt) 1988-11-16

Family

ID=6325607

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8801756A BR8801756A (pt) 1987-04-14 1988-04-13 Processo e disposicao para o ajuste das impedancias-imagem de linhas de assinantes de circuito hibridos programaveis

Country Status (11)

Country Link
US (1) US5043977A (pt)
EP (1) EP0286835B1 (pt)
JP (1) JPS63263992A (pt)
AR (1) AR243047A1 (pt)
AT (1) ATE71783T1 (pt)
BR (1) BR8801756A (pt)
DE (1) DE3867676D1 (pt)
DK (1) DK169115B1 (pt)
FI (1) FI88090C (pt)
GR (1) GR3004340T3 (pt)
PT (1) PT87228B (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE145507T1 (de) * 1990-04-12 1996-12-15 Siemens Ag Verfahren zum überprüfen von übertragungseigenschaften einer teilnehmeranschlussschaltung
SE501975C2 (sv) * 1993-11-09 1995-07-03 Ericsson Telefon Ab L M Gränssnittskrets mellan fyrtrådsledning och tvåtrådsledning
DE10120070A1 (de) * 2001-04-24 2002-11-07 Siemens Ag Vorrichtung und Verfahren zum Anpassen der Leitungseigenschaften bei hochbitratigen Datenübertragungen
CN112964963B (zh) * 2021-02-07 2024-06-04 中国南方电网有限责任公司 基于ca-wmm的混合直流线路故障测距方法及系统

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1583635A (en) * 1977-03-02 1981-01-28 Int Standard Electric Corp Subscriber line or trunk circuit
US4254305A (en) * 1979-02-07 1981-03-03 International Telephone And Telegraph Corporation Current limited subscriber line feed circuit
JPS56122580A (en) * 1980-03-03 1981-09-26 Hitachi Ltd Line terminating system of time division telephone switchboard
US4381561A (en) * 1980-10-23 1983-04-26 International Telephone And Telegraph Corporation All digital LSI line circuit for analog lines
US4489222A (en) * 1982-09-13 1984-12-18 The Board Of Trustees Of The Leland Stanford, Junior University Telephone line interface
DE3409877A1 (de) * 1984-03-17 1985-09-19 Neumann Elektronik GmbH, 4330 Mülheim Einrichtung zur optimalen anpassung einer gabelschaltung an eine fernmeldeleitung
CA1208715A (en) * 1984-05-09 1986-07-29 Northern Telecom Limited Adaptive hybrid
GB2178925B (en) * 1985-08-09 1989-04-12 Plessey Co Plc Line terminating apparatus
US4685103A (en) * 1985-12-24 1987-08-04 Gte Communication Systems Corporation Control circuit for a centrex attendant console interface

Also Published As

Publication number Publication date
FI88090C (fi) 1993-03-25
US5043977A (en) 1991-08-27
PT87228A (pt) 1989-05-12
GR3004340T3 (pt) 1993-03-31
DE3867676D1 (de) 1992-02-27
JPS63263992A (ja) 1988-10-31
ATE71783T1 (de) 1992-02-15
DK169115B1 (da) 1994-08-15
PT87228B (pt) 1995-05-31
DK201688A (da) 1988-10-15
EP0286835A1 (de) 1988-10-19
FI881717A0 (fi) 1988-04-13
EP0286835B1 (de) 1992-01-15
DK201688D0 (da) 1988-04-13
FI88090B (fi) 1992-12-15
FI881717A (fi) 1988-10-15
AR243047A1 (es) 1993-06-30

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Legal Events

Date Code Title Description
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 13/04/2003