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DE602006009123D1 - Lesekanalvorrichtung mit asynchronem Oversampling, synchroner fraktional beabstandeter Entzerrung und digitaler Verstärkungsregelung. - Google Patents

Lesekanalvorrichtung mit asynchronem Oversampling, synchroner fraktional beabstandeter Entzerrung und digitaler Verstärkungsregelung.

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Publication number
DE602006009123D1
DE602006009123D1 DE200660009123 DE602006009123T DE602006009123D1 DE 602006009123 D1 DE602006009123 D1 DE 602006009123D1 DE 200660009123 DE200660009123 DE 200660009123 DE 602006009123 T DE602006009123 T DE 602006009123T DE 602006009123 D1 DE602006009123 D1 DE 602006009123D1
Authority
DE
Grant status
Grant
Patent type
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.)
Active
Application number
DE200660009123
Other languages
English (en)
Inventor
Evangelos Eleftheriou
Sedat Oelcer
Glen Alan Jaquette
Jens Jelitto
Robert Allan Hutchins
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.)
Facebook Inc
Original Assignee
International Business Machines Corp
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
Grant date

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/10009Improvement or modification of read or write signals
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/10009Improvement or modification of read or write signals
    • G11B20/10018Improvement or modification of read or write signals analog processing for digital recording or reproduction
    • G11B20/10027Improvement or modification of read or write signals analog processing for digital recording or reproduction adjusting the signal strength during recording or reproduction, e.g. variable gain amplifiers
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/10009Improvement or modification of read or write signals
    • G11B20/10046Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/10009Improvement or modification of read or write signals
    • G11B20/10046Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
    • G11B20/10055Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using partial response filtering when writing the signal to the medium or reading it therefrom
DE200660009123 2005-08-26 2006-07-03 Lesekanalvorrichtung mit asynchronem Oversampling, synchroner fraktional beabstandeter Entzerrung und digitaler Verstärkungsregelung. Active DE602006009123D1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US11213127 US7394608B2 (en) 2005-08-26 2005-08-26 Read channel apparatus for asynchronous sampling and synchronous equalization
PCT/EP2006/063793 WO2007023012A1 (en) 2005-08-26 2006-07-03 Read channel apparatus for asynchronous oversampling, synchronous fractionally spaced equalization and digital gain control

Publications (1)

Publication Number Publication Date
DE602006009123D1 true DE602006009123D1 (de) 2009-10-22

Family

ID=37307226

Family Applications (1)

Application Number Title Priority Date Filing Date
DE200660009123 Active DE602006009123D1 (de) 2005-08-26 2006-07-03 Lesekanalvorrichtung mit asynchronem Oversampling, synchroner fraktional beabstandeter Entzerrung und digitaler Verstärkungsregelung.

Country Status (7)

Country Link
US (2) US7394608B2 (de)
EP (1) EP1917662B1 (de)
JP (1) JP4959704B2 (de)
KR (1) KR100968336B1 (de)
CN (1) CN101248493A (de)
DE (1) DE602006009123D1 (de)
WO (1) WO2007023012A1 (de)

Families Citing this family (74)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7522367B2 (en) * 2005-11-23 2009-04-21 International Business Machines Corporation Asynchronous read channel shaped toward generalized partial response characteristics
US7953187B2 (en) * 2006-06-21 2011-05-31 Forte Design Systems Limited Likelihood detector apparatus and method
US7738201B2 (en) * 2006-08-18 2010-06-15 Seagate Technology Llc Read error recovery using soft information
US9252994B2 (en) * 2007-10-29 2016-02-02 Realtek Semiconductor Corp. Network apparatus and network signal processing method
US8166333B2 (en) * 2008-02-04 2012-04-24 Realtek Semiconductor Corp. Network signal processing apparatus
US8245104B2 (en) 2008-05-02 2012-08-14 Lsi Corporation Systems and methods for queue based data detection and decoding
KR101460835B1 (ko) * 2008-05-19 2014-11-11 에이저 시스템즈 엘엘시 데이터 검출기 피드백 루프에서 레이턴시를 완화하는 시스템들 및 방법들
US8949701B2 (en) 2008-09-23 2015-02-03 Agere Systems Inc. Systems and methods for low latency media defect detection
EP2347416A4 (de) * 2008-11-20 2012-05-30 Lsi Corp Systeme und verfahren zur rauschverminderten datendetektion
US8266505B2 (en) 2009-08-12 2012-09-11 Lsi Corporation Systems and methods for retimed virtual data processing
CN102668399B (zh) * 2009-11-26 2015-05-27 飞思卡尔半导体公司 用于均衡信号的接收器和方法
US8830613B2 (en) 2011-07-19 2014-09-09 Lsi Corporation Storage media inter-track interference cancellation
US8379498B2 (en) 2010-09-13 2013-02-19 Lsi Corporation Systems and methods for track to track phase alignment
US8879182B2 (en) 2011-07-19 2014-11-04 Lsi Corporation Storage media inter-track interference cancellation
US8385014B2 (en) 2010-10-11 2013-02-26 Lsi Corporation Systems and methods for identifying potential media failure
US8560930B2 (en) 2010-10-11 2013-10-15 Lsi Corporation Systems and methods for multi-level quasi-cyclic low density parity check codes
US8661071B2 (en) 2010-10-11 2014-02-25 Lsi Corporation Systems and methods for partially conditioned noise predictive equalization
US8566379B2 (en) 2010-11-17 2013-10-22 Lsi Corporation Systems and methods for self tuning target adaptation
US8810940B2 (en) 2011-02-07 2014-08-19 Lsi Corporation Systems and methods for off track error recovery
US8699167B2 (en) 2011-02-16 2014-04-15 Lsi Corporation Systems and methods for data detection using distance based tuning
US8446683B2 (en) 2011-02-22 2013-05-21 Lsi Corporation Systems and methods for data pre-coding calibration
US20120230676A1 (en) * 2011-03-07 2012-09-13 Fan Mo Turn-up and long term operation of adaptive equalizer in optical transmission systems
US8693120B2 (en) 2011-03-17 2014-04-08 Lsi Corporation Systems and methods for sample averaging in data processing
US8854753B2 (en) 2011-03-17 2014-10-07 Lsi Corporation Systems and methods for auto scaling in a data processing system
US8887034B2 (en) 2011-04-15 2014-11-11 Lsi Corporation Systems and methods for short media defect detection
US8611033B2 (en) 2011-04-15 2013-12-17 Lsi Corporation Systems and methods for selective decoder input data processing
US8670955B2 (en) 2011-04-15 2014-03-11 Lsi Corporation Systems and methods for reliability assisted noise predictive filtering
US8565047B2 (en) 2011-04-28 2013-10-22 Lsi Corporation Systems and methods for data write loopback based timing control
US8566665B2 (en) 2011-06-24 2013-10-22 Lsi Corporation Systems and methods for error correction using low density parity check codes using multiple layer check equations
US8499231B2 (en) 2011-06-24 2013-07-30 Lsi Corporation Systems and methods for reduced format non-binary decoding
US8560929B2 (en) 2011-06-24 2013-10-15 Lsi Corporation Systems and methods for non-binary decoding
US8819527B2 (en) 2011-07-19 2014-08-26 Lsi Corporation Systems and methods for mitigating stubborn errors in a data processing system
US8854754B2 (en) 2011-08-19 2014-10-07 Lsi Corporation Systems and methods for local iteration adjustment
US8539328B2 (en) 2011-08-19 2013-09-17 Lsi Corporation Systems and methods for noise injection driven parameter selection
US9026572B2 (en) 2011-08-29 2015-05-05 Lsi Corporation Systems and methods for anti-causal noise predictive filtering in a data channel
US8681441B2 (en) 2011-09-08 2014-03-25 Lsi Corporation Systems and methods for generating predictable degradation bias
US8661324B2 (en) 2011-09-08 2014-02-25 Lsi Corporation Systems and methods for non-binary decoding biasing control
US8850276B2 (en) 2011-09-22 2014-09-30 Lsi Corporation Systems and methods for efficient data shuffling in a data processing system
US8767333B2 (en) 2011-09-22 2014-07-01 Lsi Corporation Systems and methods for pattern dependent target adaptation
US8689062B2 (en) 2011-10-03 2014-04-01 Lsi Corporation Systems and methods for parameter selection using reliability information
US8479086B2 (en) 2011-10-03 2013-07-02 Lsi Corporation Systems and methods for efficient parameter modification
US8578241B2 (en) 2011-10-10 2013-11-05 Lsi Corporation Systems and methods for parity sharing data processing
US8862960B2 (en) 2011-10-10 2014-10-14 Lsi Corporation Systems and methods for parity shared data encoding
US8443271B1 (en) 2011-10-28 2013-05-14 Lsi Corporation Systems and methods for dual process data decoding
US8527858B2 (en) 2011-10-28 2013-09-03 Lsi Corporation Systems and methods for selective decode algorithm modification
US8683309B2 (en) 2011-10-28 2014-03-25 Lsi Corporation Systems and methods for ambiguity based decode algorithm modification
US8531320B2 (en) 2011-11-14 2013-09-10 Lsi Corporation Systems and methods for memory efficient data decoding
US8751913B2 (en) 2011-11-14 2014-06-10 Lsi Corporation Systems and methods for reduced power multi-layer data decoding
US8773811B2 (en) 2011-12-12 2014-07-08 Lsi Corporation Systems and methods for zone servo timing gain recovery
US8681444B2 (en) 2012-06-07 2014-03-25 Lsi Corporation Multi-zone servo processor
US8625216B2 (en) 2012-06-07 2014-01-07 Lsi Corporation Servo zone detector
US8548097B1 (en) 2012-06-20 2013-10-01 MagnaCom Ltd. Coarse phase estimation for highly-spectrally-efficient communications
US8831124B2 (en) 2012-06-20 2014-09-09 MagnaCom Ltd. Multi-mode orthogonal frequency division multiplexing transmitter for highly-spectrally-efficient communications
US8564897B1 (en) 2012-06-21 2013-10-22 Lsi Corporation Systems and methods for enhanced sync mark detection
US8687310B1 (en) * 2012-11-28 2014-04-01 Lsi Corporation Iterative decoding using adaptive feedback
US9019641B2 (en) 2012-12-13 2015-04-28 Lsi Corporation Systems and methods for adaptive threshold pattern detection
US9053217B2 (en) 2013-02-17 2015-06-09 Lsi Corporation Ratio-adjustable sync mark detection system
US9424876B2 (en) 2013-03-14 2016-08-23 Avago Technologies General Ip (Singapore) Pte. Ltd. Systems and methods for sync mark mis-detection protection
US8988798B2 (en) 2013-05-31 2015-03-24 International Business Machines Corporation Iterative data storage read channel architecture
US8964321B2 (en) 2013-05-31 2015-02-24 International Business Machines Corporation Iterative data storage read channel architecture having dropout mitigation
US9214187B2 (en) 2013-05-31 2015-12-15 International Business Machines Corporation Cycle-slip resilient iterative data storage read channel architecture
US9275655B2 (en) 2013-06-11 2016-03-01 Avago Technologies General Ip (Singapore) Pte. Ltd. Timing error detector with diversity loop detector decision feedback
US9129650B2 (en) 2013-07-25 2015-09-08 Avago Technologies General Ip (Singapore) Pte. Ltd. Array-reader based magnetic recording systems with frequency division multiplexing
US9129646B2 (en) 2013-09-07 2015-09-08 Avago Technologies General Ip (Singapore) Pte. Ltd. Array-reader based magnetic recording systems with mixed synchronization
US9118519B2 (en) * 2013-11-01 2015-08-25 MagnaCom Ltd. Reception of inter-symbol-correlated signals using symbol-by-symbol soft-output demodulator
US9323625B2 (en) 2013-11-12 2016-04-26 Avago Technologies General Ip (Singapore) Pte. Ltd. Systems and methods for lost synchronization data set reprocessing
US9130637B2 (en) 2014-01-21 2015-09-08 MagnaCom Ltd. Communication methods and systems for nonlinear multi-user environments
US9496900B2 (en) 2014-05-06 2016-11-15 MagnaCom Ltd. Signal acquisition in a multimode environment
US8891701B1 (en) 2014-06-06 2014-11-18 MagnaCom Ltd. Nonlinearity compensation for reception of OFDM signals
US9246523B1 (en) 2014-08-27 2016-01-26 MagnaCom Ltd. Transmitter signal shaping
US9224420B1 (en) 2014-10-02 2015-12-29 Avago Technologies General Ip (Singapore) Pte. Ltd. Syncmark detection failure recovery system
US9191247B1 (en) 2014-12-09 2015-11-17 MagnaCom Ltd. High-performance sequence estimation system and method of operation
US9183877B1 (en) * 2015-03-20 2015-11-10 Western Digital Technologies, Inc. Data storage device comprising two-dimensional data dependent noise whitening filters for two-dimensional recording
US9780945B1 (en) * 2016-04-01 2017-10-03 Intel IP Corporation Methods and devices for spur cancellation in digital phase locked loops

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4847877A (en) * 1986-11-28 1989-07-11 International Business Machines Corporation Method and apparatus for detecting a predetermined bit pattern within a serial bit stream
GB8800739D0 (en) 1988-01-13 1988-02-10 Ncr Co Multipoint modem system having fast synchronization
JPH04183016A (en) 1990-11-16 1992-06-30 Nec Corp Tap interval hybrid type equalizer
US5132988A (en) * 1990-12-03 1992-07-21 Board Of Trustees, Leland Stanford Jr. University Adaptive decision feedback equalizer apparatus for processing information stored on digital storage media
WO1992010029A1 (en) * 1990-12-03 1992-06-11 Board Of Trustees, Leland Stanford, Jr. University Adaptive decision feedback equalizer apparatus for processing information stored on digital storage media
US5751768A (en) * 1995-02-24 1998-05-12 Alcatel Italia S.P.A. Fractionally spaced equalizing circuits and method
US5835296A (en) * 1996-04-26 1998-11-10 U.S. Philips Corporation Apparatus for reproducing a digital information signal from a record carrier and counting the number of bits between two sync patterns
KR100224837B1 (ko) * 1997-02-21 1999-10-15 윤종용 디지털 vcr의 적응적인 신호 처리방법 및 그 회로
JP3540329B2 (ja) * 1997-05-15 2004-07-07 インターナシヨナル・ビジネス・マシーンズ・コーポレーシヨン ノイズ予測最尤検出の装置および方法
US6009549A (en) * 1997-05-15 1999-12-28 Cirrus Logic, Inc. Disk storage system employing error detection and correction of channel coded data, interpolated timing recovery, and retroactive/split-segment symbol synchronization
US5966415A (en) * 1997-06-13 1999-10-12 Cirrus Logic, Inc. Adaptive equalization in a sub-sampled read channel for a disk storage system
US6111710A (en) * 1997-06-25 2000-08-29 Cirrus Logic, Inc. Asynchronous/synchronous gain control for interpolated timing recovery in a sampled amplitude read channel
KR100244770B1 (ko) * 1997-06-30 2000-02-15 전주범 디지탈 자기 기록/재생 시스템의 보간 필터
US6084924A (en) * 1998-03-13 2000-07-04 International Business Machines Corporation Asynchronous low sampling rate read channel using combination midpoint and linear interpolation
US6233107B1 (en) * 1998-03-20 2001-05-15 Seagate Technology Llc Analog self-synchronization subsystem based on peak detection and post processing in a sampled channel of digital magnetic recording
JP3930202B2 (ja) * 1999-06-29 2007-06-13 株式会社東芝 適応等化器及びこれを用いた光ディスク装置
US6816328B2 (en) * 2000-06-20 2004-11-09 Infineon Technologies North America Corp. Pseudo-synchronous interpolated timing recovery for a sampled amplitude read channel
US6594098B1 (en) * 2000-09-12 2003-07-15 Marvell International Ltd. Acquistion timing loop for read channel
US7079576B2 (en) 2001-05-24 2006-07-18 Frank Patrick Bologna Joint zero-forcing and matched-filter adaptive digital equalizer
US6904084B2 (en) * 2001-09-05 2005-06-07 Mediatek Incorporation Read channel apparatus and method for an optical storage system
JP3813931B2 (ja) * 2003-01-31 2006-08-23 株式会社東芝 情報再生装置及び情報再生方法
JP4206886B2 (ja) * 2003-09-29 2009-01-14 ソニー株式会社 Itrデータ再生装置、記録再生システムおよび補間フィルタ
US7430084B2 (en) * 2004-12-03 2008-09-30 International Business Machines Corporation Magnetic tape read channel signal values developed employing intermediate bits of the path memory of a PRML viterbi detector
US7773324B2 (en) * 2005-04-12 2010-08-10 Stmicroelectronics, Inc. Phase acquisition loop for a read channel and related read channel, system, and method

Also Published As

Publication number Publication date Type
JP2009506469A (ja) 2009-02-12 application
US20070047121A1 (en) 2007-03-01 application
CN101248493A (zh) 2008-08-20 application
JP4959704B2 (ja) 2012-06-27 grant
EP1917662B1 (de) 2009-09-09 grant
WO2007023012A1 (en) 2007-03-01 application
US7684139B2 (en) 2010-03-23 grant
KR20080040733A (ko) 2008-05-08 application
EP1917662A1 (de) 2008-05-07 application
US7394608B2 (en) 2008-07-01 grant
US20080259484A1 (en) 2008-10-23 application
KR100968336B1 (ko) 2010-07-08 grant

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