ZA802985B - A four-wire line arrangement for use in a digital telecommunications system - Google Patents

A four-wire line arrangement for use in a digital telecommunications system

Info

Publication number
ZA802985B
ZA802985B ZA00802985A ZA802985A ZA802985B ZA 802985 B ZA802985 B ZA 802985B ZA 00802985 A ZA00802985 A ZA 00802985A ZA 802985 A ZA802985 A ZA 802985A ZA 802985 B ZA802985 B ZA 802985B
Authority
ZA
South Africa
Prior art keywords
telecommunications system
wire line
line arrangement
digital telecommunications
digital
Prior art date
Application number
ZA00802985A
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 ZA802985B publication Critical patent/ZA802985B/xx

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)
ZA00802985A 1979-05-21 1980-05-20 A four-wire line arrangement for use in a digital telecommunications system ZA802985B (en)

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
ZA802985B true ZA802985B (en) 1981-05-27

Family

ID=6071334

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00802985A ZA802985B (en) 1979-05-21 1980-05-20 A four-wire line arrangement for use in a digital telecommunications system

Country Status (17)

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

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 (fr) * 1982-06-11 1985-04-23 Gordon F. Mein Circuit de correstion automatique pour signaux recus codes numeriquement
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
CN105980731B (zh) 2014-02-12 2018-04-27 日立汽车系统株式会社 缸体装置

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
IT1091970B (it) * 1977-01-17 1985-07-06 Trt Telecom Radio Electr Dispositivo digitale per la cancellazione di echi,per un modulatore/demodulatore,per la trasmissione di dati mediante modulazione di una portante
NO140648C (no) * 1977-10-24 1983-03-29 Elektrisk Bureau As Direktiv kobler.

Also Published As

Publication number Publication date
NO801480L (no) 1980-11-24
YU127880A (en) 1982-10-31
GB2050126A (en) 1980-12-31
CA1147035A (fr) 1983-05-24
LU82109A1 (de) 1980-04-23
EP0019194A1 (fr) 1980-11-26
EP0019194B1 (fr) 1983-08-03
AU5855780A (en) 1980-11-27
BR8003158A (pt) 1980-12-30
IL60125A0 (en) 1980-07-31
IL60125A (en) 1983-02-23
DE2920575B1 (de) 1980-10-23
DE3064481D1 (en) 1983-09-08
ATE4403T1 (de) 1983-08-15
DE2920575C2 (de) 1981-09-17
NO148054B (no) 1983-04-18
NO148054C (no) 1983-07-27
DK179580A (da) 1980-11-22
MX147045A (es) 1982-09-23
GB2050126B (en) 1984-02-22
AR231686A1 (es) 1985-01-31
FI801625A (fi) 1980-11-22
JPS55154838A (en) 1980-12-02

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