CA2047557A1 - Dispositif de correction de donnees recues - Google Patents

Dispositif de correction de donnees recues

Info

Publication number
CA2047557A1
CA2047557A1 CA2047557A CA2047557A CA2047557A1 CA 2047557 A1 CA2047557 A1 CA 2047557A1 CA 2047557 A CA2047557 A CA 2047557A CA 2047557 A CA2047557 A CA 2047557A CA 2047557 A1 CA2047557 A1 CA 2047557A1
Authority
CA
Canada
Prior art keywords
filtering
coefficients
digital
adjusting device
received data
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.)
Granted
Application number
CA2047557A
Other languages
English (en)
Other versions
CA2047557C (fr
Inventor
Mitsuo Kakuishi
Yutaka Awata
Norio Ueno
Seiji Miyoshi
Atsushi Manabe
Norio Murakami
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.)
Fujitsu Ltd
Original Assignee
Individual
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
Priority claimed from JP19069090A external-priority patent/JPH0481015A/ja
Priority claimed from JP2190683A external-priority patent/JPH0479509A/ja
Priority claimed from JP2269355A external-priority patent/JP3066652B2/ja
Application filed by Individual filed Critical Individual
Publication of CA2047557A1 publication Critical patent/CA2047557A1/fr
Application granted granted Critical
Publication of CA2047557C publication Critical patent/CA2047557C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03878—Line equalisers; line build-out devices
    • H04L25/03885—Line equalisers; line build-out devices adaptive
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H04L25/03057—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (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)
CA002047557A 1990-07-20 1991-07-22 Dispositif de correction de donnees recues Expired - Fee Related CA2047557C (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP19069090A JPH0481015A (ja) 1990-07-20 1990-07-20 ディジタル可変等化器
JP2190683A JPH0479509A (ja) 1990-07-20 1990-07-20 タイミング調整装置
JP02-190690 1990-07-20
JP02-190683 1990-07-20
JP02-269355 1990-10-09
JP2269355A JP3066652B2 (ja) 1990-10-09 1990-10-09 線路等化器

Publications (2)

Publication Number Publication Date
CA2047557A1 true CA2047557A1 (fr) 1992-01-21
CA2047557C CA2047557C (fr) 1996-12-10

Family

ID=27326363

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002047557A Expired - Fee Related CA2047557C (fr) 1990-07-20 1991-07-22 Dispositif de correction de donnees recues

Country Status (3)

Country Link
US (1) US5481564A (fr)
EP (1) EP0467412A3 (fr)
CA (1) CA2047557C (fr)

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US5448590A (en) * 1993-03-23 1995-09-05 At&T Corp. Equalization technique for compensating for degradation to the transmission of digitally modulated signals
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ES2101639B1 (es) * 1994-10-21 1998-03-01 Alcatel Standard Electrica Ecualizador adaptativo.
US6057875A (en) * 1995-12-27 2000-05-02 Sony Corporation Remotely controlled cable equalization for in-flight entertainment systems
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US6118812A (en) * 1997-05-20 2000-09-12 Lucent Technologies Inc. Digital equalization in the presence of quantization noise
US5880645A (en) * 1997-07-03 1999-03-09 Level One Communications, Inc. Analog adaptive equalizer with gain and filter correction
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US6115418A (en) * 1998-02-09 2000-09-05 National Semiconductor Corporation Simplified equalizer for twisted pair channel
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US6415003B1 (en) 1998-09-11 2002-07-02 National Semiconductor Corporation Digital baseline wander correction circuit
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US6546047B1 (en) * 1998-10-08 2003-04-08 Altima Communications, Inc. Methods and circuits for optimal equalization
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US6438156B1 (en) * 1999-02-11 2002-08-20 Adtran, Inc. Stepwise adaptive finite impulse response filter for spread spectrum radio
US6418172B1 (en) 1999-04-21 2002-07-09 National Semiconductor Corporation Look-ahead maximum likelihood sequence estimation decoder
JP2000324024A (ja) * 1999-05-10 2000-11-24 Mitsubishi Electric Corp 適応等化器およびその設計方法
JP2001069046A (ja) * 1999-08-30 2001-03-16 Fujitsu Ltd 送受信システムおよび受信装置
KR100724346B1 (ko) * 1999-09-01 2007-06-04 엘지전자 주식회사 자체교정 복조장치 및 그 방법
US6295015B1 (en) * 1999-09-01 2001-09-25 Zenith Electronics Corporation Reference generator for demodulator calibration
US6166594A (en) * 1999-09-01 2000-12-26 Zenith Electronics Corporation Self calibrating demodulator system
US6678319B1 (en) * 2000-01-11 2004-01-13 Canon Kabushiki Kaisha Digital signal processing for high-speed communications
US6873663B1 (en) * 2000-02-16 2005-03-29 Telefonaktiebolaget Lm Ericsson Reception of M-ary PSK-modulated signals
US7254198B1 (en) 2000-04-28 2007-08-07 National Semiconductor Corporation Receiver system having analog pre-filter and digital equalizer
US7050517B1 (en) 2000-04-28 2006-05-23 National Semiconductor Corporation System and method suitable for receiving gigabit ethernet signals
JP3434786B2 (ja) * 2000-06-30 2003-08-11 松下電器産業株式会社 振幅検出回路
DE10042930B4 (de) * 2000-08-31 2005-07-14 Infineon Technologies Ag Digitales Filter
DE10060425A1 (de) * 2000-12-05 2002-06-13 Infineon Technologies Ag Empfängerschaltung
US20020168001A1 (en) * 2001-05-09 2002-11-14 Jeffrey Ramsey Systems and method for determining the phase angle response in a CATV system
DE10124177A1 (de) * 2001-05-17 2002-11-28 Infineon Technologies Ag Verfahren zur Rekonstruktion von mit einer Symbolrate getakteten Daten aus einem analogen, verzerrten Signal
IES20020643A2 (en) * 2001-08-02 2003-03-19 Massana Res Ltd Channel equalisation in data receivers
US7424053B2 (en) 2001-08-02 2008-09-09 Agere Systems Inc. Channel equalization in data receivers
US20030104783A1 (en) * 2001-12-04 2003-06-05 Esion-Tech, Llc Adaptive electromagnetic interference rejection system and method
DE60131067T2 (de) 2001-12-05 2008-05-15 Verigy (Singapore) Pte. Ltd. Leitungsentzerrer zur Kompensation von Droop-Effekten
US7068711B2 (en) * 2002-03-13 2006-06-27 Agere Systems Inc. Multi-function equalizer arrangement
US7239680B2 (en) * 2002-07-17 2007-07-03 Broadcom Corporation Methods for performing channel diagnostics
US7480326B2 (en) * 2002-07-17 2009-01-20 Broadcom Corporation Channel diagnostic systems and methods
US7286620B2 (en) * 2003-09-17 2007-10-23 International Business Machines Corporation Equalizer for reduced intersymbol interference via partial clock switching
US20050201454A1 (en) * 2004-03-12 2005-09-15 Intel Corporation System and method for automatically calibrating two-tap and multi-tap equalization for a communications link
US20070058705A1 (en) * 2005-09-13 2007-03-15 Sbc Knowledge Ventures, L.P. System and method to transmit a data stream
US8331430B2 (en) * 2006-08-02 2012-12-11 Broadcom Corporation Channel diagnostic systems and methods
KR100764777B1 (ko) 2006-12-20 2007-10-12 엘지전자 주식회사 자체교정을 위한 기준신호 생성장치 및 그 생성방법
EP2498463A3 (fr) * 2007-01-08 2013-09-11 Rambus Inc. Égalisateur de ligne adaptatif et à temps continu pour corriger l'interférence inter-symbole du prémier post-curseur
US8513952B2 (en) * 2007-12-11 2013-08-20 Marvell International Ltd. Sub-symbol rate cable tester
US8743940B1 (en) 2010-01-07 2014-06-03 Marvell International Ltd. Method and apparatus for adaptively determining settings of a transmit equalizer
US8811464B1 (en) 2010-01-21 2014-08-19 Marvell International Ltd. Method and apparatus for adaptively determining equalizer settings for 10GBASE-KR transmitter
CN103238275B (zh) * 2010-11-30 2015-04-08 Nec卡西欧移动通信株式会社 无线电收发机及其控制方法
CN103684601B (zh) * 2012-09-14 2016-04-20 富士通株式会社 系数确定装置、均衡器、接收机和发射机
KR102430572B1 (ko) * 2018-06-18 2022-08-09 삼성전자주식회사 트레이닝 동작에서 조절되는 계수에 기초하여 동작하는 이퀄라이저를 포함하는 전자 장치

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US3659229A (en) * 1970-11-02 1972-04-25 Gen Electric System and method for automatic adaptive equalization of communication channels
NL171215C (nl) * 1973-03-09 1983-02-16 Trt Telecom Radio Electr Automatische egalisatie-inrichting voor een datatransmissiekanaal.
US4074086A (en) * 1976-09-07 1978-02-14 Bell Telephone Laboratories, Incorporated Joint adaptive echo canceller and equalizer for two-wire full-duplex data transmission
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JPS5892119A (ja) * 1981-11-27 1983-06-01 Hitachi Ltd 線路等化器
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IT1212993B (it) * 1983-08-11 1989-12-07 Sip Equalizzatore adattivo per segnali numerici soggetti a distorsioni variabili nel tempo
JPS60201716A (ja) * 1984-03-26 1985-10-12 Nec Corp トランスバ−サル型等化器
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JPH0746788B2 (ja) * 1985-11-05 1995-05-17 日本電気株式会社 自動線路等化器
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GB8721159D0 (en) * 1987-09-09 1987-10-14 Philips Nv Adjusting filter coefficients
JPH0750863B2 (ja) * 1987-09-25 1995-05-31 日本電気株式会社 受信器
US4833788A (en) * 1987-11-09 1989-05-30 Munro John C Univeral level light adapter
US5142552A (en) * 1988-02-22 1992-08-25 Silicon Systems, Inc. Method and apparatus for analog D.C. offset cancellation
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US5119401A (en) * 1989-11-17 1992-06-02 Nec Corporation Decision feedback equalizer including forward part whose signal reference point is shiftable depending on channel response

Also Published As

Publication number Publication date
EP0467412A3 (en) 1993-04-28
CA2047557C (fr) 1996-12-10
US5481564A (en) 1996-01-02
EP0467412A2 (fr) 1992-01-22

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