CN1232047C - 自适应均衡器电路 - Google Patents

自适应均衡器电路 Download PDF

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Publication number
CN1232047C
CN1232047C CNB011121823A CN01112182A CN1232047C CN 1232047 C CN1232047 C CN 1232047C CN B011121823 A CNB011121823 A CN B011121823A CN 01112182 A CN01112182 A CN 01112182A CN 1232047 C CN1232047 C CN 1232047C
Authority
CN
China
Prior art keywords
adaptive equalizer
equalizer unit
signal
output
change
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 - Fee Related
Application number
CNB011121823A
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English (en)
Chinese (zh)
Other versions
CN1324149A (zh
Inventor
西村孝一郎
广濑幸一
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.)
Hitachi Consumer Electronics Co Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of CN1324149A publication Critical patent/CN1324149A/zh
Application granted granted Critical
Publication of CN1232047C publication Critical patent/CN1232047C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H03H21/0012—Digital adaptive filters
    • 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
    • H04L25/03038—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure
    • 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
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03445—Time domain
    • H04L2025/03471—Tapped delay lines
    • H04L2025/03477—Tapped delay lines not time-recursive
    • 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
    • H04L2025/03592—Adaptation methods
    • H04L2025/03598—Algorithms
    • H04L2025/03611—Iterative algorithms
    • H04L2025/03617—Time recursive algorithms

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)
CNB011121823A 2000-05-11 2001-03-28 自适应均衡器电路 Expired - Fee Related CN1232047C (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP143398/00 2000-05-11
JP143398/2000 2000-05-11
JP2000143398A JP3928332B2 (ja) 2000-05-11 2000-05-11 適応等化回路

Publications (2)

Publication Number Publication Date
CN1324149A CN1324149A (zh) 2001-11-28
CN1232047C true CN1232047C (zh) 2005-12-14

Family

ID=18650228

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB011121823A Expired - Fee Related CN1232047C (zh) 2000-05-11 2001-03-28 自适应均衡器电路

Country Status (5)

Country Link
US (1) US6904086B2 (enExample)
JP (1) JP3928332B2 (enExample)
KR (1) KR100419598B1 (enExample)
CN (1) CN1232047C (enExample)
TW (1) TW498637B (enExample)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1835651A3 (en) * 2000-12-04 2007-11-14 Fujitsu Ltd. Method and apparatus for time equalization
US7194026B2 (en) * 2001-04-26 2007-03-20 Thomson Licensing Blind equalization method for a high definition television signal
KR100925672B1 (ko) * 2001-11-21 2009-11-10 코닌클리케 필립스 일렉트로닉스 엔.브이. 데이터 전송속도에 비동기적인 샘플링속도에서 동작하는적응형 등화기
US7305028B2 (en) * 2002-03-18 2007-12-04 Cornell Research Foundation, Inc. Methods and system for equalizing data
US7230984B2 (en) * 2002-03-18 2007-06-12 Cornell Research Foundation, Inc. Methods and system for equalizing data in multicarrier receiver systems
US6968170B2 (en) 2002-07-16 2005-11-22 Narad Networks, Inc. Adaptive correction of a received signal frequency response tilt
RU2237964C2 (ru) * 2002-11-29 2004-10-10 Аванесян Гарри Романович Психоакустический процессор (адаптивный эквалайзер)
RU2239278C1 (ru) * 2003-04-15 2004-10-27 Аванесян Гарри Романович Психоакустический процессор (адаптивный эквалайзер)
RU2241305C1 (ru) * 2003-04-15 2004-11-27 Аванесян Гарри Романович Психоакустический процессор (адаптивный эквалайзер без обратных связей)
JP4263553B2 (ja) * 2003-08-19 2009-05-13 パイオニア株式会社 マルチパスひずみ除去フィルタ
US7313181B2 (en) 2003-09-10 2007-12-25 Intel Corporation Calibration of scale factor in adaptive equalizers
JP2005135563A (ja) * 2003-10-31 2005-05-26 Sanyo Electric Co Ltd 適応等化器
RU2279758C2 (ru) * 2004-07-07 2006-07-10 Гарри Романович Аванесян Адаптивный эквалайзер (варианты)
RU2279759C2 (ru) * 2004-07-07 2006-07-10 Гарри Романович Аванесян Психоакустический процессор
KR100640591B1 (ko) * 2004-10-23 2006-11-01 삼성전자주식회사 감소된 면적을 가지는 부분 탭 적응 등화기
KR100801669B1 (ko) * 2006-08-30 2008-02-11 연세대학교 산학협력단 적응형 주파수 영역 등화기 및 주파수 영역 등화 방법
US7916779B1 (en) 2007-09-20 2011-03-29 Integrated Device Technology, Inc. Adaptive decision feedback equalizer for high data rate serial link receiver
JP2012079385A (ja) * 2010-10-04 2012-04-19 Sony Corp データ検出装置、再生装置、データ検出方法
US8625226B2 (en) * 2011-11-23 2014-01-07 International Business Machines Corporation Fixing tap coefficients in a programmable finite-impulse-response equalizer
KR101418046B1 (ko) 2012-12-18 2014-07-10 연세대학교 산학협력단 듀티 사이클 보정 장치 및 방법, 그리고 그를 이용하는 수신기
US10313165B2 (en) * 2017-03-08 2019-06-04 Credo Technology Group Limited Finite impulse response analog receive filter with amplifier-based delay chain

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2025135C (en) * 1989-09-13 1993-06-29 Shousei Yoshida Frequency tracking circuit using samples equalized at different sampling instants of same clock period
JP3251023B2 (ja) * 1991-02-27 2002-01-28 日本電気株式会社 自動等化器
JP3382639B2 (ja) * 1992-07-15 2003-03-04 日本電気株式会社 適応フィルタ制御回路
JPH0676477A (ja) * 1992-08-26 1994-03-18 Hitachi Ltd 適応等化回路を有するデータ再生装置
US5467370A (en) * 1994-03-24 1995-11-14 Silicon Systems, Inc. Method and apparatus for an adaptive three tap transversal equalizer for partial-response signaling
US5999355A (en) * 1996-04-30 1999-12-07 Cirrus Logic, Inc. Gain and phase constrained adaptive equalizing filter in a sampled amplitude read channel for magnetic recording
JP3366803B2 (ja) 1996-05-28 2003-01-14 パイオニア株式会社 適応等化器
JPH1091964A (ja) * 1996-09-13 1998-04-10 Pioneer Electron Corp 記録情報再生装置の適応等化器
JP3428329B2 (ja) * 1996-10-31 2003-07-22 日本ビクター株式会社 波形等化回路
US6414990B1 (en) * 1998-09-29 2002-07-02 Conexant Systems, Inc. Timing recovery for a high speed digital data communication system based on adaptive equalizer impulse response characteristics
KR100580166B1 (ko) * 1999-11-04 2006-05-15 삼성전자주식회사 등화기의 필터 계수를 조절하여 재생 성능을 높이는 장치및 방법

Also Published As

Publication number Publication date
KR20010106167A (ko) 2001-11-29
US20010043651A1 (en) 2001-11-22
JP2001319423A (ja) 2001-11-16
CN1324149A (zh) 2001-11-28
TW498637B (en) 2002-08-11
JP3928332B2 (ja) 2007-06-13
US6904086B2 (en) 2005-06-07
KR100419598B1 (ko) 2004-02-19

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C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C06 Publication
PB01 Publication
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: HITACHI LTD.

Free format text: FORMER OWNER: HITACHI,LTD.

Effective date: 20130820

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20130820

Address after: Tokyo, Japan

Patentee after: Hitachi Consumer Electronics Co.,Ltd.

Address before: Tokyo, Japan

Patentee before: Hitachi Manufacturing Co., Ltd.

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20051214

Termination date: 20140328