CN103034555A - 用于高效率参数修改的系统和方法 - Google Patents

用于高效率参数修改的系统和方法 Download PDF

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Publication number
CN103034555A
CN103034555A CN2012102736557A CN201210273655A CN103034555A CN 103034555 A CN103034555 A CN 103034555A CN 2012102736557 A CN2012102736557 A CN 2012102736557A CN 201210273655 A CN201210273655 A CN 201210273655A CN 103034555 A CN103034555 A CN 103034555A
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China
Prior art keywords
data
circuit
value
data set
parameter
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CN2012102736557A
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English (en)
Chinese (zh)
Inventor
夏海涛
杨少华
K·M·哈尔
M·A·兰德瑞斯
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Avago Technologies International Sales Pte Ltd
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Infineon Technologies North America Corp
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Publication of CN103034555A publication Critical patent/CN103034555A/zh
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • 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
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10268—Improvement or modification of read or write signals bit detection or demodulation methods
    • G11B20/10287—Improvement or modification of read or write signals bit detection or demodulation methods using probabilistic methods, e.g. maximum likelihood detectors
    • G11B20/10296—Improvement or modification of read or write signals bit detection or demodulation methods using probabilistic methods, e.g. maximum likelihood detectors using the Viterbi algorithm
    • 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
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10481—Improvement or modification of read or write signals optimisation methods
    • G11B20/10509—Improvement or modification of read or write signals optimisation methods iterative methods, e.g. trial-and-error, interval search, gradient descent or feedback loops
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H04L1/203—Details of error rate determination, e.g. BER, FER or WER
    • 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
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • 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
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03312—Arrangements specific to the provision of output signals
    • H04L25/03318—Provision of soft decisions
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2508—Magnetic discs
    • G11B2220/2516—Hard disks

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Error Detection And Correction (AREA)
  • Debugging And Monitoring (AREA)
CN2012102736557A 2011-10-03 2012-08-02 用于高效率参数修改的系统和方法 Pending CN103034555A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/251,340 US8479086B2 (en) 2011-10-03 2011-10-03 Systems and methods for efficient parameter modification
US13/251,340 2011-10-03

Publications (1)

Publication Number Publication Date
CN103034555A true CN103034555A (zh) 2013-04-10

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CN2012102736557A Pending CN103034555A (zh) 2011-10-03 2012-08-02 用于高效率参数修改的系统和方法

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Country Link
US (1) US8479086B2 (https=)
EP (1) EP2613321A3 (https=)
JP (1) JP5551739B2 (https=)
KR (1) KR101390566B1 (https=)
CN (1) CN103034555A (https=)
TW (1) TWI443648B (https=)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8819519B2 (en) * 2012-06-28 2014-08-26 Lsi Corporation Systems and methods for enhanced accuracy NPML calibration
US8908304B2 (en) 2012-07-17 2014-12-09 Lsi Corporation Systems and methods for channel target based CBD estimation
US9324363B2 (en) 2013-06-05 2016-04-26 Avago Technologies General Ip (Singapore) Pte. Ltd. Systems and methods for floating variance branch metric calculation
US9019642B1 (en) * 2014-04-02 2015-04-28 Lsi Corporation Synchronization mark detection for multi-dimensional magnetic recording
US9569641B2 (en) 2015-03-24 2017-02-14 Nxp Usa, Inc. Data processing system with temperature monitoring for security
US10014026B1 (en) 2017-06-20 2018-07-03 Seagate Technology Llc Head delay calibration and tracking in MSMR systems
US10297281B1 (en) 2017-11-06 2019-05-21 Seagate Technology Llc Servo sector detection
US11018842B1 (en) 2018-07-31 2021-05-25 Seagate Technology Llc Dynamic timing recovery bandwidth modulation for phase offset mitigation
US11016681B1 (en) 2018-07-31 2021-05-25 Seagate Technology Llc Multi-threshold parameter adaptation
US10522177B1 (en) 2018-07-31 2019-12-31 Seagate Technology Llc Disc locked clock-based servo timing
US10803902B1 (en) 2018-08-19 2020-10-13 Seagate Technology Llc Hardware-based read sample averaging
US10460762B1 (en) 2018-09-04 2019-10-29 Seagate Technology Llc Cancelling adjacent track interference signal with different data rate
US10468060B1 (en) 2018-09-27 2019-11-05 Seagate Technology Llc Cancelling adjacent track interference
US11580042B2 (en) 2020-11-30 2023-02-14 Seagate Technology Llc Automated and intelligent data channel optimizers with sensitivity assessment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060041800A1 (en) * 2004-08-23 2006-02-23 Johnson James B Method and apparatus for generating and detecting initialization patterns for high speed DRAM systems
US20090268848A1 (en) * 2008-04-29 2009-10-29 Agere Systems Inc. Systems and Methods for Filter Based Media Defect Detection
US20090287978A1 (en) * 2006-01-31 2009-11-19 Andrew David Tune Operating Parameter Control for Integrated Circuit Signal Paths
US20100241928A1 (en) * 2009-03-18 2010-09-23 Jaehong Kim Data Processing System Having ECC Encoding and Decoding Circuits Therein with Code Rate Selection Based on Bit Error Rate Detection
US20110161752A1 (en) * 2009-12-31 2011-06-30 Spry Bryan L Robust memory link testing using memory controller

Family Cites Families (138)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0443721A (ja) 1990-06-11 1992-02-13 Matsushita Electric Ind Co Ltd ディジタル信号復号装置
US5612964A (en) 1991-04-08 1997-03-18 Haraszti; Tegze P. High performance, fault tolerant orthogonal shuffle memory and method
US5325402A (en) 1991-04-30 1994-06-28 Nec Corporation Method and arrangement for estimating data sequences transmsitted using Viterbi algorithm
US5278703A (en) 1991-06-21 1994-01-11 Digital Equipment Corp. Embedded servo banded format for magnetic disks for use with a data processing system
US5311087A (en) 1991-07-12 1994-05-10 Pioneer Electronic Corporation Noise removing circuit
US5392299A (en) 1992-01-15 1995-02-21 E-Systems, Inc. Triple orthogonally interleaed error correction system
US5317472A (en) 1992-03-17 1994-05-31 Schweitzer Engineering Laboratories, Inc. Apparatus for insuring the security of output signals from protective relays used in electric power systems
US5513192A (en) 1992-08-28 1996-04-30 Sun Microsystems, Inc. Fault tolerant disk drive system with error detection and correction
EP0631277A3 (en) 1993-06-22 1995-02-22 Quantum Corp Data sector format without identity code and data control unit for disk drive.
ZA947317B (en) 1993-09-24 1995-05-10 Qualcomm Inc Multirate serial viterbi decoder for code division multiple access system applications
US5523903A (en) 1993-12-23 1996-06-04 International Business Machines Corporation Sector architecture for fixed block disk drive
US5550870A (en) 1994-03-02 1996-08-27 Lucent Technologies Inc. Viterbi processor
JPH07245635A (ja) 1994-03-04 1995-09-19 Sony Corp 信号点マッピング方法および信号点検出方法
US5471500A (en) 1994-03-08 1995-11-28 At&T Ipm Corp. Soft symbol decoding
EP0677967A3 (en) 1994-04-12 1997-07-23 Gold Star Co Viterbi decoder for high-definition television.
JP3328093B2 (ja) 1994-07-12 2002-09-24 三菱電機株式会社 エラー訂正装置
US5734598A (en) * 1994-12-28 1998-03-31 Quantum Corporation Low power filter coefficient adaptation circuit for digital adaptive filter
US5898710A (en) 1995-06-06 1999-04-27 Globespan Technologies, Inc. Implied interleaving, a family of systematic interleavers and deinterleavers
US5701314A (en) 1995-12-21 1997-12-23 Cirrus Logic, Inc. On-the-fly error correction using thermal asperity erasure pointers from a sampled amplitude read channel in a magnetic disk drive
JPH09232973A (ja) 1996-02-28 1997-09-05 Sony Corp ビタビ復号器
US6023783A (en) 1996-05-15 2000-02-08 California Institute Of Technology Hybrid concatenated codes and iterative decoding
US5978414A (en) 1996-07-03 1999-11-02 Matsushita Electric Industrial Co., Ltd. Transmission rate judging unit
SG52990A1 (en) 1996-07-09 1998-09-28 Ibm Improvements to radial self-propagation pattern generation for disk file servowriting
US5802118A (en) 1996-07-29 1998-09-01 Cirrus Logic, Inc. Sub-sampled discrete time read channel for computer storage systems
JP3310185B2 (ja) 1996-11-21 2002-07-29 松下電器産業株式会社 誤り訂正装置
US6377610B1 (en) 1997-04-25 2002-04-23 Deutsche Telekom Ag Decoding method and decoding device for a CDMA transmission system for demodulating a received signal available in serial code concatenation
US5983383A (en) 1997-01-17 1999-11-09 Qualcom Incorporated Method and apparatus for transmitting and receiving concatenated code data
US6671404B1 (en) 1997-02-14 2003-12-30 Hewlett-Packard Development Company, L.P. Method and apparatus for recognizing patterns
US6029264A (en) 1997-04-28 2000-02-22 The Trustees Of Princeton University System and method for error correcting a received data stream in a concatenated system
KR100484127B1 (ko) 1997-08-07 2005-06-16 삼성전자주식회사 비터비디코더
US6005897A (en) 1997-12-16 1999-12-21 Mccallister; Ronald D. Data communication system and method therefor
JP3900637B2 (ja) 1997-12-19 2007-04-04 ソニー株式会社 ビタビ復号装置
JP2912323B1 (ja) 1998-01-29 1999-06-28 日本放送協会 デジタルデータの受信装置
US6145110A (en) 1998-06-22 2000-11-07 Ericsson Inc. Digital data decoder that derives codeword estimates from soft data
KR100277764B1 (ko) 1998-12-10 2001-01-15 윤종용 통신시스템에서직렬쇄상구조를가지는부호화및복호화장치
US6381726B1 (en) 1999-01-04 2002-04-30 Maxtor Corporation Architecture for soft decision decoding of linear block error correcting codes
US6216249B1 (en) 1999-03-03 2001-04-10 Cirrus Logic, Inc. Simplified branch metric for reducing the cost of a trellis sequence detector in a sampled amplitude read channel
US6216251B1 (en) 1999-04-30 2001-04-10 Motorola Inc On-chip error detection and correction system for an embedded non-volatile memory array and method of operation
GB2350531B (en) 1999-05-26 2001-07-11 3Com Corp High speed parallel bit error rate tester
US6473878B1 (en) 1999-05-28 2002-10-29 Lucent Technologies Inc. Serial-concatenated turbo codes
US6351832B1 (en) 1999-05-28 2002-02-26 Lucent Technologies Inc. Turbo code symbol interleaver
SE516157C2 (sv) 1999-05-28 2001-11-26 Ericsson Telefon Ab L M Rättning av statiska fel i en AD-omvandlare
US6266795B1 (en) 1999-05-28 2001-07-24 Lucent Technologies Inc. Turbo code termination
JP3495651B2 (ja) 1999-07-15 2004-02-09 三洋電機株式会社 光ディスク再生装置および光ディスク再生装置における等化特性最適化方法
JP4040798B2 (ja) * 1999-07-23 2008-01-30 富士通株式会社 記憶装置及びその記録再生方法
GB2372142B (en) 1999-11-22 2003-11-12 Seagate Technology Llc Method and apparatus for data error recovery using defect threshold detector and viterbi gain
US6810502B2 (en) 2000-01-28 2004-10-26 Conexant Systems, Inc. Iteractive decoder employing multiple external code error checks to lower the error floor
JP2001274698A (ja) 2000-03-24 2001-10-05 Sony Corp 符号化装置、符号化方法及び符号化プログラムが記録された記録媒体、並びに、復号装置、復号方法及び復号プログラムが記録された記録媒体
US7184486B1 (en) 2000-04-27 2007-02-27 Marvell International Ltd. LDPC encoder and decoder and method thereof
US6757862B1 (en) 2000-08-21 2004-06-29 Handspring, Inc. Method and apparatus for digital data error correction coding
JP4324316B2 (ja) 2000-10-23 2009-09-02 株式会社日立グローバルストレージテクノロジーズ 垂直磁気記録再生装置
US7093179B2 (en) 2001-03-22 2006-08-15 University Of Florida Method and coding means for error-correction utilizing concatenated parity and turbo codes
US20020178417A1 (en) * 2001-05-22 2002-11-28 Jacob John M. Communication channel optimization using forward error correction statistics
JP2003006993A (ja) * 2001-06-25 2003-01-10 Fujitsu Ltd データ再生装置及びデータ記録再生装置
US7295623B2 (en) 2001-07-11 2007-11-13 Vativ Technologies, Inc. High-speed communications transceiver
US20030112896A1 (en) 2001-07-11 2003-06-19 Raghavan Sreen A. Multi-channel communications transceiver
US7236757B2 (en) 2001-07-11 2007-06-26 Vativ Technologies, Inc. High-speed multi-channel communications transceiver with inter-channel interference filter
US6904084B2 (en) 2001-09-05 2005-06-07 Mediatek Incorporation Read channel apparatus and method for an optical storage system
US7073118B2 (en) 2001-09-17 2006-07-04 Digeo, Inc. Apparatus and method for saturating decoder values
US7173783B1 (en) 2001-09-21 2007-02-06 Maxtor Corporation Media noise optimized detector for magnetic recording
US6731442B2 (en) 2001-10-02 2004-05-04 Seagate Technologies Llc Method and apparatus for detecting media defects
JP3759711B2 (ja) 2001-11-09 2006-03-29 富士通株式会社 磁気ディスクシステム
US6986098B2 (en) 2001-11-20 2006-01-10 Lsi Logic Corporation Method of reducing miscorrections in a post-processor using column parity checks
KR100925672B1 (ko) 2001-11-21 2009-11-10 코닌클리케 필립스 일렉트로닉스 엔.브이. 데이터 전송속도에 비동기적인 샘플링속도에서 동작하는적응형 등화기
US7136244B1 (en) 2002-02-22 2006-11-14 Western Digital Technologies, Inc. Disk drive employing data averaging techniques during retry operations to facilitate data recovery
US8190964B2 (en) * 2002-04-05 2012-05-29 Sentel Corporation Decoding method
EP1413059B9 (en) 2002-07-03 2015-09-02 Dtvg Licensing, Inc Bit-interleaved coded modulation using low density parity check (ldpc) codes
JP2004080210A (ja) 2002-08-13 2004-03-11 Fujitsu Ltd デジタルフィルタ
US7113356B1 (en) 2002-09-10 2006-09-26 Marvell International Ltd. Method for checking the quality of servo gray codes
US6785863B2 (en) 2002-09-18 2004-08-31 Motorola, Inc. Method and apparatus for generating parity-check bits from a symbol set
US7058873B2 (en) 2002-11-07 2006-06-06 Carnegie Mellon University Encoding method using a low density parity check code with a column weight of two
US7702986B2 (en) 2002-11-18 2010-04-20 Qualcomm Incorporated Rate-compatible LDPC codes
US7047474B2 (en) 2002-12-23 2006-05-16 Do-Jun Rhee Decoding concatenated codes via parity bit recycling
US7505537B1 (en) 2003-03-25 2009-03-17 Marvell International Ltd. System and method for controlling gain and timing phase in a presence of a first least mean square filter using a second adaptive filter
US7117427B2 (en) 2003-07-09 2006-10-03 Texas Instruments Incorporated Reduced complexity decoding for trellis coded modulation
JP4095504B2 (ja) 2003-07-31 2008-06-04 株式会社東芝 ディスク記憶装置及びシンクマーク書込み方法
US7313750B1 (en) 2003-08-06 2007-12-25 Ralink Technology, Inc. Efficient soft decision demapper to minimize viterbi decoder complexity
JP2005071432A (ja) * 2003-08-21 2005-03-17 Sanyo Electric Co Ltd 光ディスク装置
KR100510549B1 (ko) 2003-09-26 2005-08-26 삼성전자주식회사 코채널 간섭을 검출하고 경감시키는 디지털 비디오 방송수신기의 채널 상태 평가 장치 및 그 방법
US7133228B2 (en) 2003-10-10 2006-11-07 Seagate Technology Llc Using data compression to achieve lower linear bit densities on a storage medium
EP1528702B1 (en) 2003-11-03 2008-01-23 Broadcom Corporation FEC (forward error correction) decoding with dynamic parameters
JP2005166200A (ja) * 2003-12-04 2005-06-23 Sharp Corp 信号評価装置、信号評価方法および信号再生装置
US7233164B2 (en) 2003-12-17 2007-06-19 Rambus Inc. Offset cancellation in a multi-level signaling system
US7958425B2 (en) 2004-02-19 2011-06-07 Trelliware Technologies, Inc. Method and apparatus for communications using turbo like codes
US7673213B2 (en) 2004-02-19 2010-03-02 Trellisware Technologies, Inc. Method and apparatus for communications using improved turbo like codes
AU2005201005A1 (en) 2004-03-05 2005-09-22 General Dynamics C4 Systems, Inc A method and system for capacity analysis for on the move adhoc wireless packet-switched networks
US7415651B2 (en) 2004-06-02 2008-08-19 Seagate Technology Data communication system with multi-dimensional error-correction product codes
US7480828B2 (en) * 2004-06-10 2009-01-20 International Business Machines Corporation Method, apparatus and program storage device for extending dispersion frame technique behavior using dynamic rule sets
US7346832B2 (en) 2004-07-21 2008-03-18 Qualcomm Incorporated LDPC encoding methods and apparatus
WO2006039801A1 (en) 2004-10-12 2006-04-20 Nortel Networks Limited System and method for low density parity check encoding of data
US20060123285A1 (en) 2004-11-16 2006-06-08 De Araujo Daniel F Dynamic threshold scaling in a communication system
KR20060064388A (ko) 2004-12-08 2006-06-13 삼성전자주식회사 박막 트랜지스터, 이의 제조 방법, 이를 갖는 표시장치 및표시장치의 제조 방법
US7646829B2 (en) 2004-12-23 2010-01-12 Agere Systems, Inc. Composite data detector and a method for detecting data
US7779325B2 (en) 2005-01-24 2010-08-17 Agere Systems Inc. Data detection and decoding system and method
US7730384B2 (en) 2005-02-28 2010-06-01 Agere Systems Inc. Method and apparatus for evaluating performance of a read channel
US7889823B2 (en) 2005-03-03 2011-02-15 Seagate Technology Llc Timing recovery in a parallel channel communication system
US7370258B2 (en) 2005-04-28 2008-05-06 Sandbridge Technologies Inc. Iterative concatenated convolutional Reed-Solomon decoding method
US7587657B2 (en) 2005-04-29 2009-09-08 Agere Systems Inc. Method and apparatus for iterative error-erasure decoding
KR100629509B1 (ko) 2005-05-16 2006-09-28 삼성전자주식회사 광디스크에서 독출된 신호의 신호대 잡음비 측정 장치 및그 방법
US7802172B2 (en) 2005-06-20 2010-09-21 Stmicroelectronics, Inc. Variable-rate low-density parity check codes with constant blocklength
US20070047635A1 (en) 2005-08-24 2007-03-01 Stojanovic Vladimir M Signaling system with data correlation detection
US7394608B2 (en) 2005-08-26 2008-07-01 International Business Machines Corporation Read channel apparatus for asynchronous sampling and synchronous equalization
JP4356670B2 (ja) 2005-09-12 2009-11-04 ソニー株式会社 雑音低減装置及び雑音低減方法並びに雑音低減プログラムとその電子機器用収音装置
US7523375B2 (en) 2005-09-21 2009-04-21 Distribution Control Systems Set of irregular LDPC codes with random structure and low encoding complexity
US7929597B2 (en) 2005-11-15 2011-04-19 Qualcomm Incorporated Equalizer for a receiver in a wireless communication system
US7712008B2 (en) 2006-01-26 2010-05-04 Agere Systems Inc. Systems and methods for error reduction associated with information transfer
US7752523B1 (en) 2006-02-13 2010-07-06 Marvell International Ltd. Reduced-complexity decoding of parity check codes
US7808956B2 (en) 2006-03-31 2010-10-05 Motorola, Inc. Dynamic, adaptive power control for a half-duplex wireless communication system
KR100800474B1 (ko) * 2006-06-30 2008-02-04 삼성전자주식회사 하드디스크 드라이브의 헤드 특성 판별 방법 및 이에적합한 기록 매체
US7802163B2 (en) 2006-07-31 2010-09-21 Agere Systems Inc. Systems and methods for code based error reduction
US7801200B2 (en) 2006-07-31 2010-09-21 Agere Systems Inc. Systems and methods for code dependency reduction
US7738201B2 (en) 2006-08-18 2010-06-15 Seagate Technology Llc Read error recovery using soft information
US20080049825A1 (en) 2006-08-25 2008-02-28 Broadcom Corporation Equalizer with reorder
US8705752B2 (en) 2006-09-20 2014-04-22 Broadcom Corporation Low frequency noise reduction circuit architecture for communications applications
US7702989B2 (en) 2006-09-27 2010-04-20 Agere Systems Inc. Systems and methods for generating erasure flags
FR2909499B1 (fr) 2006-12-01 2009-01-16 Commissariat Energie Atomique Procede et dispositif de decodage pour codes ldpc, et appareil de communication comprenant un tel dispositif
US7971125B2 (en) 2007-01-08 2011-06-28 Agere Systems Inc. Systems and methods for prioritizing error correction data
WO2008085968A1 (en) * 2007-01-08 2008-07-17 Allied Telesis, Inc. Apparatus and method for automated adjustment and setting of apd optical receiver operation point
US8418023B2 (en) 2007-05-01 2013-04-09 The Texas A&M University System Low density parity check decoder for irregular LDPC codes
US7925936B1 (en) * 2007-07-13 2011-04-12 Anobit Technologies Ltd. Memory device with non-uniform programming levels
KR20100061409A (ko) 2007-09-28 2010-06-07 에이저 시스템즈 인크 복잡성이 감소된 데이터 프로세싱을 위한 시스템들 및 방법들
WO2009045203A1 (en) 2007-10-01 2009-04-09 Agere Systems Inc. Systems and methods for media defect detection
US8711984B2 (en) 2008-01-22 2014-04-29 Agere Systems Llc Methods and apparatus for map detection with reduced complexity
US8161348B2 (en) 2008-02-05 2012-04-17 Agere Systems Inc. Systems and methods for low cost LDPC decoding
US8161357B2 (en) 2008-03-17 2012-04-17 Agere Systems Inc. Systems and methods for using intrinsic data for regenerating data from a defective medium
US8095855B2 (en) 2008-03-17 2012-01-10 Agere Systems Inc. Systems and methods for regenerating data from a defective medium
US7872978B1 (en) 2008-04-18 2011-01-18 Link—A—Media Devices Corporation Obtaining parameters for minimizing an error event probability
US8599973B2 (en) 2008-04-30 2013-12-03 HGST Netherlands B.V. Detection of synchronization mark from output of matched filter upstream of Viterbi detector
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
US8464129B2 (en) 2008-08-15 2013-06-11 Lsi Corporation ROM list-decoding of near codewords
US8296620B2 (en) * 2008-08-26 2012-10-23 Seagate Technology Llc Data devices including multiple error correction codes and methods of utilizing
US8660220B2 (en) 2008-09-05 2014-02-25 Lsi Corporation Reduced frequency data processing using a matched filter set front end
US8245120B2 (en) 2008-09-17 2012-08-14 Lsi Corporation Power reduced queue based data detection and decoding systems and methods for using such
KR20110086504A (ko) 2008-11-20 2011-07-28 엘에스아이 코포레이션 노이즈 감소 데이터 프로세싱 회로, 노이즈 감소 데이터 프로세싱 회로를 위한 시스템 및 방법
EP2340507A4 (en) 2009-03-05 2012-05-30 Lsi Corp IMPROVED TURBO COMPENSATION PROCESS FOR ITERATIVE DECODER
US8130553B2 (en) * 2009-12-02 2012-03-06 Seagate Technology Llc Systems and methods for low wear operation of solid state memory
US8683306B2 (en) 2010-01-04 2014-03-25 Lsi Corporation Systems and methods for data detection including dynamic scaling

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060041800A1 (en) * 2004-08-23 2006-02-23 Johnson James B Method and apparatus for generating and detecting initialization patterns for high speed DRAM systems
US20090287978A1 (en) * 2006-01-31 2009-11-19 Andrew David Tune Operating Parameter Control for Integrated Circuit Signal Paths
US20090268848A1 (en) * 2008-04-29 2009-10-29 Agere Systems Inc. Systems and Methods for Filter Based Media Defect Detection
US20100241928A1 (en) * 2009-03-18 2010-09-23 Jaehong Kim Data Processing System Having ECC Encoding and Decoding Circuits Therein with Code Rate Selection Based on Bit Error Rate Detection
US20110161752A1 (en) * 2009-12-31 2011-06-30 Spry Bryan L Robust memory link testing using memory controller

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