GR3007224T3 - - Google Patents

Info

Publication number
GR3007224T3
GR3007224T3 GR920402733T GR920402733T GR3007224T3 GR 3007224 T3 GR3007224 T3 GR 3007224T3 GR 920402733 T GR920402733 T GR 920402733T GR 920402733 T GR920402733 T GR 920402733T GR 3007224 T3 GR3007224 T3 GR 3007224T3
Authority
GR
Greece
Prior art keywords
amplitude
values
transmission path
test apparatus
generator
Prior art date
Application number
GR920402733T
Other languages
English (en)
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 filed Critical
Publication of GR3007224T3 publication Critical patent/GR3007224T3/el

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing
    • H04B3/493—Testing echo effects or singing
    • 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
    • H04B3/238—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 using initial training sequence

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Tests Of Electronic Circuits (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
GR920402733T 1987-07-16 1993-03-05 GR3007224T3 (el)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3723569 1987-07-16

Publications (1)

Publication Number Publication Date
GR3007224T3 true GR3007224T3 (el) 1993-07-30

Family

ID=6331725

Family Applications (1)

Application Number Title Priority Date Filing Date
GR920402733T GR3007224T3 (el) 1987-07-16 1993-03-05

Country Status (8)

Country Link
EP (1) EP0300352B1 (el)
JP (1) JPH0748680B2 (el)
AT (1) ATE83344T1 (el)
AU (1) AU584020B2 (el)
DE (1) DE3876523D1 (el)
ES (1) ES2037147T3 (el)
GR (1) GR3007224T3 (el)
NO (1) NO300520B1 (el)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3908284C1 (en) * 1989-03-14 1990-06-07 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De Test device for checking the cancelling function of a digital echo canceller
DE19960051A1 (de) 1999-12-14 2001-06-21 Alcatel Sa Verfahren zur Echounterdrückung in einem Telekommunikationssystem und Echounterdrückungseinrichtung zur Durchführung des Verfahrens

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2448251A1 (fr) * 1979-02-02 1980-08-29 Radiotechnique Compelec Filtre passe-bas pour signaux basse frequence
FR2448258A1 (fr) * 1979-02-05 1980-08-29 Trt Telecom Radio Electr Systeme de test d'un dispositif muni d'un annuleur d'echo
SE441052B (sv) * 1984-02-01 1985-09-02 Ellemtel Utvecklings Ab Forfarande for att testa funktionen hos en anordning for adaptiv ekoeliminering
EP0156315B1 (de) * 1984-03-30 1991-06-05 Siemens Aktiengesellschaft Schaltungsanordnung zum Prüfen der Funktionsfähigkeit einer Datenübertragunseinrichtung

Also Published As

Publication number Publication date
EP0300352A1 (de) 1989-01-25
ATE83344T1 (de) 1992-12-15
DE3876523D1 (de) 1993-01-21
AU584020B2 (en) 1989-05-11
EP0300352B1 (de) 1992-12-09
ES2037147T3 (es) 1993-06-16
AU1911188A (en) 1989-02-02
NO300520B1 (no) 1997-06-09
JPS6436226A (en) 1989-02-07
JPH0748680B2 (ja) 1995-05-24
NO883128L (no) 1989-01-17
NO883128D0 (no) 1988-07-13

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