AU586959B2 - An echo compensator - Google Patents

An echo compensator

Info

Publication number
AU586959B2
AU586959B2 AU20110/88A AU2011088A AU586959B2 AU 586959 B2 AU586959 B2 AU 586959B2 AU 20110/88 A AU20110/88 A AU 20110/88A AU 2011088 A AU2011088 A AU 2011088A AU 586959 B2 AU586959 B2 AU 586959B2
Authority
AU
Australia
Prior art keywords
echo
step width
signal
echo canceller
measuring device
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
AU20110/88A
Other languages
English (en)
Other versions
AU2011088A (en
Inventor
Dirsko V. Pfeil
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of AU2011088A publication Critical patent/AU2011088A/en
Application granted granted Critical
Publication of AU586959B2 publication Critical patent/AU586959B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • H04B3/234—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 double talk detection
    • 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)
  • Primary Cells (AREA)
  • Bidirectional Digital Transmission (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Radio Relay Systems (AREA)
AU20110/88A 1987-07-29 1988-07-28 An echo compensator Ceased AU586959B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3725190 1987-07-29
DE3725190 1987-07-29

Publications (2)

Publication Number Publication Date
AU2011088A AU2011088A (en) 1989-02-16
AU586959B2 true AU586959B2 (en) 1989-07-27

Family

ID=6332662

Family Applications (1)

Application Number Title Priority Date Filing Date
AU20110/88A Ceased AU586959B2 (en) 1987-07-29 1988-07-28 An echo compensator

Country Status (8)

Country Link
EP (1) EP0303101B1 (OSRAM)
JP (1) JPH0695653B2 (OSRAM)
AT (1) ATE81239T1 (OSRAM)
AU (1) AU586959B2 (OSRAM)
DE (1) DE3875028D1 (OSRAM)
ES (1) ES2035186T3 (OSRAM)
GR (1) GR3006697T3 (OSRAM)
NO (1) NO175400C (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU604137B2 (en) * 1987-07-20 1990-12-06 Nec Corporation Echo canceller

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19816358C2 (de) * 1998-04-03 2000-04-27 Deutsche Telekom Ag Verfahren zur Steuerung der Schrittweite eines Echokompensators mit adaptivem Filter
EP1301018A1 (en) * 2001-10-02 2003-04-09 Alcatel Apparatus and method for modifying a digital signal in the coded domain

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU3249484A (en) * 1983-09-02 1985-03-07 Nec Corporation Echo canceller systems
AU567957B2 (en) * 1983-07-29 1987-12-10 Siemens Aktiengesellschaft Digital echo cancellation
AU574282B2 (en) * 1986-01-30 1988-06-30 Siemens Aktiengesellschaft Echo compensation by adaptive transversal filtering

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2564667B1 (fr) * 1984-05-15 1986-09-19 Trt Telecom Radio Electr Dispositif de commande d'un annuleur d'echo et d'un ecreteur de centre

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU567957B2 (en) * 1983-07-29 1987-12-10 Siemens Aktiengesellschaft Digital echo cancellation
AU3249484A (en) * 1983-09-02 1985-03-07 Nec Corporation Echo canceller systems
AU574282B2 (en) * 1986-01-30 1988-06-30 Siemens Aktiengesellschaft Echo compensation by adaptive transversal filtering

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU604137B2 (en) * 1987-07-20 1990-12-06 Nec Corporation Echo canceller

Also Published As

Publication number Publication date
NO175400B (no) 1994-06-27
EP0303101A1 (de) 1989-02-15
AU2011088A (en) 1989-02-16
DE3875028D1 (de) 1992-11-05
JPH0695653B2 (ja) 1994-11-24
ES2035186T3 (es) 1993-04-16
NO175400C (no) 1994-10-05
JPS6444636A (en) 1989-02-17
NO883355L (no) 1989-01-30
GR3006697T3 (OSRAM) 1993-06-30
EP0303101B1 (de) 1992-09-30
ATE81239T1 (de) 1992-10-15
NO883355D0 (no) 1988-07-28

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