BR8003158A - Sistema de telecomunicacao digital com pelo menos um setor de linha de quatro fios - Google Patents

Sistema de telecomunicacao digital com pelo menos um setor de linha de quatro fios

Info

Publication number
BR8003158A
BR8003158A BR8003158A BR8003158A BR8003158A BR 8003158 A BR8003158 A BR 8003158A BR 8003158 A BR8003158 A BR 8003158A BR 8003158 A BR8003158 A BR 8003158A BR 8003158 A BR8003158 A BR 8003158A
Authority
BR
Brazil
Prior art keywords
telecommunication system
wire line
digital telecommunication
line sector
sector
Prior art date
Application number
BR8003158A
Other languages
English (en)
Inventor
H Strehl
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 BR8003158A publication Critical patent/BR8003158A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
    • H04B3/231—Echo cancellers using readout of a memory to provide the echo replica

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Dc Digital Transmission (AREA)
  • Selective Calling Equipment (AREA)
BR8003158A 1979-05-21 1980-05-20 Sistema de telecomunicacao digital com pelo menos um setor de linha de quatro fios BR8003158A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2920575A DE2920575C2 (de) 1979-05-21 1979-05-21 Digital-Fernmeldesystem mit mindestens einem Vierdrahtleitungsabschnitt

Publications (1)

Publication Number Publication Date
BR8003158A true BR8003158A (pt) 1980-12-30

Family

ID=6071334

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8003158A BR8003158A (pt) 1979-05-21 1980-05-20 Sistema de telecomunicacao digital com pelo menos um setor de linha de quatro fios

Country Status (17)

Country Link
EP (1) EP0019194B1 (pt)
JP (1) JPS55154838A (pt)
AR (1) AR231686A1 (pt)
AT (1) ATE4403T1 (pt)
AU (1) AU5855780A (pt)
BR (1) BR8003158A (pt)
CA (1) CA1147035A (pt)
DE (2) DE2920575C2 (pt)
DK (1) DK179580A (pt)
FI (1) FI801625A (pt)
GB (1) GB2050126B (pt)
IL (1) IL60125A (pt)
LU (1) LU82109A1 (pt)
MX (1) MX147045A (pt)
NO (1) NO148054C (pt)
YU (1) YU127880A (pt)
ZA (1) ZA802985B (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3116863C2 (de) * 1981-04-28 1985-08-08 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur Digitalsignal-Echokompensation
DE3121545C2 (de) * 1981-05-29 1986-12-04 Siemens AG, 1000 Berlin und 8000 München Übersprech- u./o. Echo-Kompensationsschaltung
CA1186029A (en) * 1982-06-11 1985-04-23 Gordon F. Mein Automatic correction circuit for received digitally encoded signals
GB2123259A (en) * 1982-06-25 1984-01-25 Philips Electronic Associated Digital duplex communication system
DE3327467A1 (de) * 1983-07-29 1985-02-14 Siemens AG, 1000 Berlin und 8000 München Verfahren und schaltungsanordnung zur kompensation von echosignalen
DE3719590A1 (de) * 1987-06-12 1988-12-29 Telefonbau & Normalzeit Gmbh Verfahren zur entzerrung von digital-signalen
DE3730234A1 (de) * 1987-09-09 1989-03-30 Telefonbau & Normalzeit Gmbh Verfahren zur echounterdrueckung
WO2015121922A1 (ja) 2014-02-12 2015-08-20 日立オートモティブシステムズ株式会社 シリンダ装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1522663A (en) * 1975-07-11 1978-08-23 Milgo Electronic Corp Data modems with automatic equalization drop-out detection and data echo protection
AU514263B2 (en) * 1977-01-17 1981-01-29 T.R.T. Digital echo canceller
NO140648C (no) * 1977-10-24 1983-03-29 Elektrisk Bureau As Direktiv kobler.

Also Published As

Publication number Publication date
CA1147035A (en) 1983-05-24
NO148054B (no) 1983-04-18
AU5855780A (en) 1980-11-27
EP0019194A1 (de) 1980-11-26
IL60125A (en) 1983-02-23
YU127880A (en) 1982-10-31
GB2050126B (en) 1984-02-22
FI801625A (fi) 1980-11-22
AR231686A1 (es) 1985-01-31
EP0019194B1 (de) 1983-08-03
MX147045A (es) 1982-09-23
LU82109A1 (de) 1980-04-23
JPS55154838A (en) 1980-12-02
IL60125A0 (en) 1980-07-31
ZA802985B (en) 1981-05-27
NO801480L (no) 1980-11-24
DK179580A (da) 1980-11-22
DE2920575C2 (de) 1981-09-17
GB2050126A (en) 1980-12-31
ATE4403T1 (de) 1983-08-15
DE2920575B1 (de) 1980-10-23
NO148054C (no) 1983-07-27
DE3064481D1 (en) 1983-09-08

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