NO883128L - Testinnretning for digital-ekkokompensatorer. - Google Patents

Testinnretning for digital-ekkokompensatorer.

Info

Publication number
NO883128L
NO883128L NO88883128A NO883128A NO883128L NO 883128 L NO883128 L NO 883128L NO 88883128 A NO88883128 A NO 88883128A NO 883128 A NO883128 A NO 883128A NO 883128 L NO883128 L NO 883128L
Authority
NO
Norway
Prior art keywords
amplitude
values
testing device
transmission path
test apparatus
Prior art date
Application number
NO88883128A
Other languages
English (en)
Other versions
NO300520B1 (no
NO883128D0 (no
Inventor
Dirsko V Pfeil
Frank Kuhn
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 NO883128D0 publication Critical patent/NO883128D0/no
Publication of NO883128L publication Critical patent/NO883128L/no
Publication of NO300520B1 publication Critical patent/NO300520B1/no

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)
  • Tests Of Electronic Circuits (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
NO883128A 1987-07-16 1988-07-13 Testinnretning for digital-ekkokompensatorer NO300520B1 (no)

Applications Claiming Priority (1)

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

Publications (3)

Publication Number Publication Date
NO883128D0 NO883128D0 (no) 1988-07-13
NO883128L true NO883128L (no) 1989-01-17
NO300520B1 NO300520B1 (no) 1997-06-09

Family

ID=6331725

Family Applications (1)

Application Number Title Priority Date Filing Date
NO883128A NO300520B1 (no) 1987-07-16 1988-07-13 Testinnretning for digital-ekkokompensatorer

Country Status (8)

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

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
ATE64256T1 (de) * 1984-03-30 1991-06-15 Siemens Ag Schaltungsanordnung zum pruefen der funktionsfaehigkeit einer datenuebertragunseinrichtung.

Also Published As

Publication number Publication date
GR3007224T3 (no) 1993-07-30
ATE83344T1 (de) 1992-12-15
AU584020B2 (en) 1989-05-11
JPS6436226A (en) 1989-02-07
DE3876523D1 (de) 1993-01-21
NO300520B1 (no) 1997-06-09
AU1911188A (en) 1989-02-02
ES2037147T3 (es) 1993-06-16
EP0300352A1 (de) 1989-01-25
NO883128D0 (no) 1988-07-13
EP0300352B1 (de) 1992-12-09
JPH0748680B2 (ja) 1995-05-24

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