JP2001508959A - スパース適応型等化フィルタ - Google Patents

スパース適応型等化フィルタ

Info

Publication number
JP2001508959A
JP2001508959A JP52364498A JP52364498A JP2001508959A JP 2001508959 A JP2001508959 A JP 2001508959A JP 52364498 A JP52364498 A JP 52364498A JP 52364498 A JP52364498 A JP 52364498A JP 2001508959 A JP2001508959 A JP 2001508959A
Authority
JP
Japan
Prior art keywords
tap
filter
assigned
multiplier
positions
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
JP52364498A
Other languages
English (en)
Japanese (ja)
Other versions
JP2001508959A5 (enExample
Inventor
ルー，チエン―ユン
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.)
Vantiva SA
Original Assignee
Thomson Multimedia SA
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 Thomson Multimedia SA filed Critical Thomson Multimedia SA
Publication of JP2001508959A publication Critical patent/JP2001508959A/ja
Publication of JP2001508959A5 publication Critical patent/JP2001508959A5/ja
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • 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
    • 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
    • H04L25/03987—Equalisation for sparse channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • H04N5/211—Ghost signal cancellation
    • 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
    • H04L2025/03484—Tapped delay lines time-recursive
    • H04L2025/0349—Tapped delay lines time-recursive as a feedback filter

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Picture Signal Circuits (AREA)
  • Dc Digital Transmission (AREA)
JP52364498A 1996-11-19 1997-10-29 スパース適応型等化フィルタ Ceased JP2001508959A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/752,295 1996-11-19
US08/752,295 US5777910A (en) 1996-11-19 1996-11-19 Sparse equalization filter adaptive in two dimensions
PCT/US1997/018473 WO1998023086A1 (en) 1996-11-19 1997-10-29 Adaptive sparse equalization filter

Publications (2)

Publication Number Publication Date
JP2001508959A true JP2001508959A (ja) 2001-07-03
JP2001508959A5 JP2001508959A5 (enExample) 2005-06-16

Family

ID=25025696

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52364498A Ceased JP2001508959A (ja) 1996-11-19 1997-10-29 スパース適応型等化フィルタ

Country Status (9)

Country Link
US (1) US5777910A (enExample)
EP (1) EP0940035B1 (enExample)
JP (1) JP2001508959A (enExample)
KR (1) KR100529245B1 (enExample)
CN (1) CN1202653C (enExample)
AU (1) AU7304898A (enExample)
DE (1) DE69737416T2 (enExample)
MY (1) MY117012A (enExample)
WO (1) WO1998023086A1 (enExample)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007300284A (ja) * 2006-04-28 2007-11-15 Mitsubishi Electric Corp 等化装置
WO2008062622A1 (en) * 2006-11-22 2008-05-29 Panasonic Corporation Waveform equalizing device
JP2008219078A (ja) * 2007-02-28 2008-09-18 Nippon Telegr & Teleph Corp <Ntt> 等化回路および歪軽減方法
JP2010136363A (ja) * 2008-11-12 2010-06-17 Intel Corp ポータブル環境下の決定フィードバックイコライザ
JP2012217859A (ja) * 2011-04-12 2012-11-12 Tyco Healthcare Group Lp 電気外科用発電機内の電力測定結果を較正するためのシステムおよび方法
JP2012531839A (ja) * 2009-06-30 2012-12-10 インテル コーポレイション 先進テレビジョンシステム委員会（ａｔｓｃ）デジタルテレビジョン（ｄｔｖ）受信器

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5946351A (en) * 1996-12-27 1999-08-31 At&T Corporation Tap selectable decision feedback equalizer
JP3204151B2 (ja) * 1997-02-13 2001-09-04 日本電気株式会社 適応フィルタ
US6240180B1 (en) * 1997-11-14 2001-05-29 Tellabs Operations, Inc. Echo canceller employing dual-H architecture having split adaptive gain settings
US6031908A (en) * 1997-11-14 2000-02-29 Tellabs Operations, Inc. Echo canceller employing dual-H architecture having variable adaptive gain settings
US6426972B1 (en) * 1998-06-19 2002-07-30 Nxtwave Communications Reduced complexity equalizer for multi mode signaling
US6724844B1 (en) * 1998-06-30 2004-04-20 Koninklijke Philips Electronics N.V. Method and device for improving DFE performance in a trellis-coded system
US6377642B1 (en) 1999-02-26 2002-04-23 Cisco Technologies, Inc. System for clock recovery
US6636561B1 (en) * 1999-06-29 2003-10-21 Nortel Networks Limited Channel equalisers
US6445734B1 (en) * 1999-06-30 2002-09-03 Conexant Systems, Inc. System and method of validating equalizer training
US7489725B2 (en) * 1999-08-13 2009-02-10 Broadcom Corporation Decision feedback equalizer and precoder ramping circuit
US7127481B1 (en) 2000-07-11 2006-10-24 Marvell International, Ltd. Movable tap finite impulse response filter
US7120656B1 (en) 2000-10-04 2006-10-10 Marvell International Ltd. Movable tap finite impulse response filter
US6980646B1 (en) * 2001-10-12 2005-12-27 Nortel Networks Limited Apparatus and method for echo cancellation
AU2002348962A1 (en) * 2001-11-21 2003-06-10 Koninklijke Philips Electronics N.V. Adaptive equalizer operating at a sampling rate asynchronous to the data rate
US7953193B2 (en) * 2002-03-28 2011-05-31 Broadcom Corporation Sparse channel equalization
AU2003244763A1 (en) * 2002-05-31 2003-12-19 Matsushita Electric Industrial Co., Ltd. Bandwidth adaptation rule for adaptive noise filter for inverse filtering with improved disturbance rejection bandwidth and speed
US7069286B2 (en) * 2002-09-27 2006-06-27 Lucent Technologies Inc. Solution space principle component-based adaptive filter and method of operation thereof
KR100921479B1 (ko) * 2002-10-31 2009-10-13 엘지전자 주식회사 채널 등화기 및 이를 이용한 채널 등화 방법
KR100498465B1 (ko) * 2002-11-23 2005-07-01 삼성전자주식회사 채널 등화 방법 및 채널 등화기
BRPI0418600A (pt) * 2004-03-09 2007-05-02 Thomson Licensing receptor tipo ancinho / equalizador hìbrido para sistemas de espalhamento espectral.
US7574010B2 (en) 2004-05-28 2009-08-11 Research In Motion Limited System and method for adjusting an audio signal
KR100660841B1 (ko) * 2004-10-22 2006-12-26 삼성전자주식회사 오버랩된 필터 뱅크들을 가지는 부분 탭 적응 등화기 및이를 이용한 등화 방법
KR100640591B1 (ko) * 2004-10-23 2006-11-01 삼성전자주식회사 감소된 면적을 가지는 부분 탭 적응 등화기
US7613291B1 (en) * 2005-08-10 2009-11-03 Mindspeed Technologies, Inc. Echo path change detection using dual sparse filtering
KR101019397B1 (ko) * 2005-11-21 2011-03-07 퀄컴 인코포레이티드 멀티코드 ｃｄｍａ 시스템의 ｍｍｓｅ 공간-시간 등화기에대한 최적의 가중치
US7649932B2 (en) * 2005-11-30 2010-01-19 Microtune (Texas), L.P. Segmented equalizer
US20070280388A1 (en) * 2006-05-31 2007-12-06 Texas Instruments Incorporated Apparatus for and method of canceller tap shutdown in a communication system
US8098781B1 (en) 2007-10-12 2012-01-17 Harris Corporation Communications system using adaptive filter with normalization circuit
US8121236B1 (en) 2007-10-12 2012-02-21 Harris Corporation Communications system using adaptive filter circuit using parallel adaptive filters
US8204164B1 (en) 2007-10-12 2012-06-19 Harris Corporation Communications system using adaptive filter and selected adaptive filter taps
US7864835B2 (en) * 2007-10-12 2011-01-04 Harris Corporation Communications system using adaptive filter and variable delay before adaptive filter taps
US8094763B1 (en) 2007-10-12 2012-01-10 Harris Corporation Communications system using adaptive filter with adaptive update gain
US8107572B1 (en) 2007-10-12 2012-01-31 Harris Corporation Communications system using adaptive filter for interference reduction
US7860200B2 (en) * 2007-10-12 2010-12-28 Harris Corporation Communications system using adaptive filter that is selected based on output power
US7978757B1 (en) * 2008-02-08 2011-07-12 Freescale Semiconductor, Inc. Configurable receiver and a method for configuring a receiver
US8081722B1 (en) 2008-04-04 2011-12-20 Harris Corporation Communications system and device using simultaneous wideband and in-band narrowband operation and related method
CN101834582B (zh) * 2010-05-28 2013-09-11 华为技术有限公司 一种优化fir滤波器的方法及装置
CN105007057B (zh) * 2015-07-09 2018-08-24 杭州电子科技大学 一种针对有限集跟踪滤波器的均匀密集杂波稀疏方法
EP3324543B1 (en) * 2016-11-18 2020-01-08 Nxp B.V. Adaptive filter and method of operating an adaptive filter
US10572985B2 (en) * 2016-11-18 2020-02-25 Canon Kabushiki Kaisha Image processing circuit with multipliers allocated based on filter coefficients
EP3324542B1 (en) 2016-11-18 2019-10-23 Nxp B.V. Adaptive filter with manageable resource sharing
CN118679680A (zh) * 2022-02-11 2024-09-20 华为技术有限公司 用于节能和智能回波抵消的技术

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4727424A (en) * 1986-10-16 1988-02-23 Rca Corporation Sampled data filtering system, including a crossbar switch matrix, as for a ghost cancellation system
US5001701A (en) * 1989-08-07 1991-03-19 At&T Bell Laboratories Subband echo canceler including real time allocation among the subbands
EP0421526B1 (en) * 1989-10-06 1996-07-31 Koninklijke Philips Electronics N.V. Adaptive ghost cancellation circuit
US5050119A (en) * 1989-10-06 1991-09-17 North American Philips Corporation Optimized sparse transversal filter
US5045945A (en) * 1989-10-06 1991-09-03 North American Philips Corporation Method of adaptive ghost cancellation
CA2058495C (en) * 1990-12-27 1996-02-06 Akihiko Sugiyama Adaptive filter capable of quickly identifying an unknown system
CA2060667C (en) * 1992-02-05 1998-12-08 Paul Marc Yatrou Adaptive sparse echo canceller using a sub-rate filter for active tap selection
KR0124597B1 (ko) * 1994-04-12 1997-12-01 구자홍 에이치디티브이(hdtv)용 채널등화기
KR960011419B1 (ko) * 1994-06-14 1996-08-22 대우전자 주식회사 복소 필터 장치

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007300284A (ja) * 2006-04-28 2007-11-15 Mitsubishi Electric Corp 等化装置
WO2008062622A1 (en) * 2006-11-22 2008-05-29 Panasonic Corporation Waveform equalizing device
JPWO2008062622A1 (ja) * 2006-11-22 2010-03-04 パナソニック株式会社 波形等化装置
JP4994389B2 (ja) * 2006-11-22 2012-08-08 パナソニック株式会社 波形等化装置
JP2008219078A (ja) * 2007-02-28 2008-09-18 Nippon Telegr & Teleph Corp <Ntt> 等化回路および歪軽減方法
JP2010136363A (ja) * 2008-11-12 2010-06-17 Intel Corp ポータブル環境下の決定フィードバックイコライザ
US8526486B2 (en) 2008-11-12 2013-09-03 Intel Corporation Decision feedback equalizer for portable environments
JP2012531839A (ja) * 2009-06-30 2012-12-10 インテル コーポレイション 先進テレビジョンシステム委員会（ａｔｓｃ）デジタルテレビジョン（ｄｔｖ）受信器
JP2012217859A (ja) * 2011-04-12 2012-11-12 Tyco Healthcare Group Lp 電気外科用発電機内の電力測定結果を較正するためのシステムおよび方法
JP2016193259A (ja) * 2011-04-12 2016-11-17 タイコ ヘルスケア グループ，エルピー 電気外科用発電機内の電力測定結果を較正するためのシステムおよび方法
US9918775B2 (en) 2011-04-12 2018-03-20 Covidien Lp Systems and methods for calibrating power measurements in an electrosurgical generator

Also Published As

Publication number Publication date
US5777910A (en) 1998-07-07
EP0940035A1 (en) 1999-09-08
CN1202653C (zh) 2005-05-18
MY117012A (en) 2004-04-30
DE69737416T2 (de) 2007-06-21
AU7304898A (en) 1998-06-10
KR100529245B1 (ko) 2005-11-17
DE69737416D1 (de) 2007-04-12
CN1238095A (zh) 1999-12-08
KR20000053361A (ko) 2000-08-25
WO1998023086A1 (en) 1998-05-28
EP0940035B1 (en) 2007-02-28

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