DE3777621D1 - Adaptives zeit-diskretes filter zur erzeugung eines annulierungssignals von synchronen datensymbolen. - Google Patents

Adaptives zeit-diskretes filter zur erzeugung eines annulierungssignals von synchronen datensymbolen.

Info

Publication number
DE3777621D1
DE3777621D1 DE8787202538T DE3777621T DE3777621D1 DE 3777621 D1 DE3777621 D1 DE 3777621D1 DE 8787202538 T DE8787202538 T DE 8787202538T DE 3777621 T DE3777621 T DE 3777621T DE 3777621 D1 DE3777621 D1 DE 3777621D1
Authority
DE
Germany
Prior art keywords
generating
data symbols
synchronous data
cancel signal
adaptive time
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.)
Expired - Lifetime
Application number
DE8787202538T
Other languages
English (en)
Inventor
Kornelis Jan Wouda
Simon Johannes Maria Tol
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.)
AT&T Network Systems International BV
Original Assignee
AT&T Network Systems International BV
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 AT&T Network Systems International BV filed Critical AT&T Network Systems International BV
Application granted granted Critical
Publication of DE3777621D1 publication Critical patent/DE3777621D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • 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
    • H04B3/235—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 combined with adaptive equaliser
    • 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)
  • Filters That Use Time-Delay Elements (AREA)
DE8787202538T 1986-12-22 1987-12-16 Adaptives zeit-diskretes filter zur erzeugung eines annulierungssignals von synchronen datensymbolen. Expired - Lifetime DE3777621D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8603247A NL8603247A (nl) 1986-12-22 1986-12-22 Adaptief tijd-discreet filter voor het vormen van een compensatiesignaal uit synchrone datasymbolen.

Publications (1)

Publication Number Publication Date
DE3777621D1 true DE3777621D1 (de) 1992-04-23

Family

ID=19849030

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787202538T Expired - Lifetime DE3777621D1 (de) 1986-12-22 1987-12-16 Adaptives zeit-diskretes filter zur erzeugung eines annulierungssignals von synchronen datensymbolen.

Country Status (7)

Country Link
US (1) US4920530A (de)
EP (1) EP0276511B1 (de)
JP (1) JP2591764B2 (de)
AU (1) AU608795B2 (de)
CA (1) CA1265847A (de)
DE (1) DE3777621D1 (de)
NL (1) NL8603247A (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0771029B2 (ja) * 1987-03-03 1995-07-31 日本電気株式会社 エコ−消去器
AU606176B2 (en) * 1987-07-13 1991-01-31 Alcatel Australia Limited Programmable balance filter arrangement
DE3744075A1 (de) * 1987-12-24 1989-07-13 Licentia Gmbh Verfahren zur entzerrung von dispersiven, linearen oder naeherungsweise linearen kanaelen zur uebertragung von digitalen signalen sowie anordnung zum ausfuehren des verfahrens
FR2627032A1 (fr) * 1988-02-09 1989-08-11 Alcatel Thomson Faisceaux Filtre transverse
JPH0748681B2 (ja) * 1989-02-23 1995-05-24 日本電気株式会社 エコー消去器の係数制御方法
US5388092A (en) * 1989-06-27 1995-02-07 Nec Corporation Echo canceller for two-wire full duplex digital data transmission
JP3135902B2 (ja) * 1990-05-11 2001-02-19 株式会社日立製作所 自動等化器及び半導体集積回路
JPH04369932A (ja) * 1991-06-19 1992-12-22 Hitachi Ltd エコーキャンセラ、および、それを用いた伝送装置
JP3049958B2 (ja) * 1992-08-24 2000-06-05 日本電気株式会社 判定帰還等化器
FR2729024A1 (fr) * 1994-12-30 1996-07-05 Matra Communication Annuleur d'echo acoustique avec filtrage en sous-bandes
US6790040B2 (en) 1999-11-10 2004-09-14 Implant Innovations, Inc. Healing components for use in taking impressions and methods for making the same
US7796544B2 (en) * 2002-06-07 2010-09-14 Tokyo Electron Limited Method and system for providing an analog front end for multiline transmission in communication systems
WO2014064558A2 (en) 2012-10-22 2014-05-01 Medical Corporation It Abutment, fixture, dental implant set, dental tap, dental guide, dental tap set, and dental drill
US9839496B2 (en) 2013-02-19 2017-12-12 Biomet 3I, Llc Patient-specific dental prosthesis and gingival contouring developed by predictive modeling
EP3094283A4 (de) 2013-12-20 2018-01-24 Biomet 3i, LLC Zahnärztliches system zur entwicklung von angepassten prothesen durch abtasten von codierten elementen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55109023A (en) * 1979-02-14 1980-08-21 Toshiba Corp Automatic equalizer
GB2111354B (en) * 1981-11-19 1985-06-19 Standard Telephones Cables Ltd Echo canceller
US4468786A (en) * 1982-09-21 1984-08-28 Harris Corporation Nonlinear equalizer for correcting intersymbol interference in a digital data transmission system
US4467441A (en) * 1982-10-08 1984-08-21 At&T Bell Laboratories Adaptive filter including controlled tap coefficient leakage
JPS605634A (ja) * 1983-06-24 1985-01-12 Nec Corp エコ−キヤンセラ

Also Published As

Publication number Publication date
AU8283187A (en) 1988-06-23
JP2591764B2 (ja) 1997-03-19
JPS63169115A (ja) 1988-07-13
AU608795B2 (en) 1991-04-18
EP0276511A1 (de) 1988-08-03
US4920530A (en) 1990-04-24
EP0276511B1 (de) 1992-03-18
CA1265847A (en) 1990-02-13
NL8603247A (nl) 1988-07-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: BLUMBACH, KRAMER & PARTNER, 65193 WIESBADEN

8339 Ceased/non-payment of the annual fee