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AU4695485A - Digital hybrid - Google Patents

Digital hybrid

Info

Publication number
AU4695485A
AU4695485A AU46954/85A AU4695485A AU4695485A AU 4695485 A AU4695485 A AU 4695485A AU 46954/85 A AU46954/85 A AU 46954/85A AU 4695485 A AU4695485 A AU 4695485A AU 4695485 A AU4695485 A AU 4695485A
Authority
AU
Australia
Prior art keywords
digital hybrid
hybrid
digital
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.)
Abandoned
Application number
AU46954/85A
Inventor
Hyokang Chang
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.)
Alcatel Lucent NV
Original Assignee
Deutsche ITT Industries GmbH
ITT Industries Inc
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 Deutsche ITT Industries GmbH, ITT Industries Inc filed Critical Deutsche ITT Industries GmbH
Publication of AU4695485A publication Critical patent/AU4695485A/en
Abandoned 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
    • H04B3/237—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 two adaptive filters, e.g. for near end and for end echo cancelling
    • 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)
  • Interface Circuits In Exchanges (AREA)
AU46954/85A 1984-09-21 1985-09-02 Digital hybrid Abandoned AU4695485A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US65374384A 1984-09-21 1984-09-21
US653743 1984-09-21

Publications (1)

Publication Number Publication Date
AU4695485A true AU4695485A (en) 1986-03-27

Family

ID=24622141

Family Applications (1)

Application Number Title Priority Date Filing Date
AU46954/85A Abandoned AU4695485A (en) 1984-09-21 1985-09-02 Digital hybrid

Country Status (3)

Country Link
AU (1) AU4695485A (en)
ES (1) ES8704057A1 (en)
GB (1) GB2164828A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU574282B2 (en) * 1986-01-30 1988-06-30 Siemens Aktiengesellschaft Echo compensation by adaptive transversal filtering

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8701633A (en) * 1987-07-10 1989-02-01 Philips Nv DIGITAL ECHO COMPENSATOR.
WO1995031052A1 (en) * 1994-05-06 1995-11-16 Ntt Mobile Communications Network Inc. Echo canceler and echo path estimating method
SE505150C3 (en) * 1995-10-18 1997-08-04 Ericsson Telefon Ab L M Adaptive dual filter echo leakage procedure
FI104524B (en) * 1997-04-18 2000-02-15 Nokia Mobile Phones Ltd An echo cancellation system and method and a mobile station
US6965640B2 (en) 2001-08-08 2005-11-15 Octasic Inc. Method and apparatus for generating a set of filter coefficients providing adaptive noise reduction
US6999509B2 (en) 2001-08-08 2006-02-14 Octasic Inc. Method and apparatus for generating a set of filter coefficients for a time updated adaptive filter
US6957240B2 (en) * 2001-08-08 2005-10-18 Octasic Inc. Method and apparatus for providing an error characterization estimate of an impulse response derived using least squares
US6970896B2 (en) * 2001-08-08 2005-11-29 Octasic Inc. Method and apparatus for generating a set of filter coefficients

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3787645A (en) * 1971-05-19 1974-01-22 Nippon Electric Co Echo canceller having two echo path models

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU574282B2 (en) * 1986-01-30 1988-06-30 Siemens Aktiengesellschaft Echo compensation by adaptive transversal filtering

Also Published As

Publication number Publication date
GB8523031D0 (en) 1985-10-23
GB2164828A (en) 1986-03-26
ES547190A0 (en) 1987-02-16
ES8704057A1 (en) 1987-02-16

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