FI801625A - Digitalt telekommunikationssystem med aotminstone ett fyrledarlinjeavsnitt - Google Patents

Digitalt telekommunikationssystem med aotminstone ett fyrledarlinjeavsnitt

Info

Publication number
FI801625A
FI801625A FI801625A FI801625A FI801625A FI 801625 A FI801625 A FI 801625A FI 801625 A FI801625 A FI 801625A FI 801625 A FI801625 A FI 801625A FI 801625 A FI801625 A FI 801625A
Authority
FI
Finland
Prior art keywords
fyrledarlinjeavsnitt
telecommunication system
digital telecommunication
media protection
media
Prior art date
Application number
FI801625A
Other languages
English (en)
Finnish (fi)
Inventor
Herbert 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 FI801625A publication Critical patent/FI801625A/fi

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)
FI801625A 1979-05-21 1980-05-20 Digitalt telekommunikationssystem med aotminstone ett fyrledarlinjeavsnitt FI801625A (fi)

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
FI801625A true FI801625A (fi) 1980-11-22

Family

ID=6071334

Family Applications (1)

Application Number Title Priority Date Filing Date
FI801625A FI801625A (fi) 1979-05-21 1980-05-20 Digitalt telekommunikationssystem med aotminstone ett fyrledarlinjeavsnitt

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
DE112014006357T5 (de) 2014-02-12 2016-10-27 Hitachi Automotive Systems, Ltd. Zylindervorrichtung

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
NL7800408A (nl) * 1977-01-17 1978-07-19 Trt Telecom Radio Electr Digitale echocompensator voor een modem voor datatransmissie met behulp van modulatie van een draaggolf.
NO140648C (no) * 1977-10-24 1983-03-29 Elektrisk Bureau As Direktiv kobler.

Also Published As

Publication number Publication date
DE2920575C2 (de) 1981-09-17
LU82109A1 (de) 1980-04-23
AU5855780A (en) 1980-11-27
IL60125A (en) 1983-02-23
GB2050126B (en) 1984-02-22
ATE4403T1 (de) 1983-08-15
NO148054B (no) 1983-04-18
JPS55154838A (en) 1980-12-02
ZA802985B (en) 1981-05-27
MX147045A (es) 1982-09-23
GB2050126A (en) 1980-12-31
DE2920575B1 (de) 1980-10-23
IL60125A0 (en) 1980-07-31
AR231686A1 (es) 1985-01-31
BR8003158A (pt) 1980-12-30
DK179580A (da) 1980-11-22
EP0019194B1 (fr) 1983-08-03
EP0019194A1 (fr) 1980-11-26
DE3064481D1 (en) 1983-09-08
YU127880A (en) 1982-10-31
NO801480L (no) 1980-11-24
CA1147035A (fr) 1983-05-24
NO148054C (no) 1983-07-27

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Legal Events

Date Code Title Description
FA Application withdrawn

Owner name: SIEMENS AKTIENGESELLSCHAFT