CN102163464A - 用于数据恢复的系统和方法 - Google Patents

用于数据恢复的系统和方法 Download PDF

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Publication number
CN102163464A
CN102163464A CN2010105474701A CN201010547470A CN102163464A CN 102163464 A CN102163464 A CN 102163464A CN 2010105474701 A CN2010105474701 A CN 2010105474701A CN 201010547470 A CN201010547470 A CN 201010547470A CN 102163464 A CN102163464 A CN 102163464A
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CN
China
Prior art keywords
data
circuit
storage medium
media defect
sync mark
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.)
Pending
Application number
CN2010105474701A
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English (en)
Chinese (zh)
Inventor
G·马修
杨少华
夏海涛
N·米拉德诺维奇
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.)
LSI Corp
Infineon Technologies North America Corp
Original Assignee
Infineon Technologies North America 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
Application filed by Infineon Technologies North America Corp filed Critical Infineon Technologies North America Corp
Publication of CN102163464A publication Critical patent/CN102163464A/zh
Pending 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
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1816—Testing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/596—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
    • G11B5/59605—Circuits
    • G11B5/59616—Synchronisation; Clocking
    • 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
    • H03M13/33—Synchronisation based on error coding or decoding
    • 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
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
    • G11B2020/1265—Control data, system data or management information, i.e. data used to access or process user data
    • G11B2020/1287—Synchronisation pattern, e.g. VCO fields
    • 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
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B2020/1476—Synchronisation patterns; Coping with defects thereof
    • 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
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1833—Error detection or correction; Testing, e.g. of drop-outs by adding special lists or symbols to the coded information
    • G11B2020/185—Error detection or correction; Testing, e.g. of drop-outs by adding special lists or symbols to the coded information using an low density parity check [LDPC] code

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
CN2010105474701A 2010-02-24 2010-11-17 用于数据恢复的系统和方法 Pending CN102163464A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/712,136 US20110205653A1 (en) 2010-02-24 2010-02-24 Systems and Methods for Data Recovery
US12/712,136 2010-02-24

Publications (1)

Publication Number Publication Date
CN102163464A true CN102163464A (zh) 2011-08-24

Family

ID=42830660

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010105474701A Pending CN102163464A (zh) 2010-02-24 2010-11-17 用于数据恢复的系统和方法

Country Status (6)

Country Link
US (1) US20110205653A1 (https=)
EP (1) EP2360696A1 (https=)
JP (1) JP2011175721A (https=)
KR (1) KR20110097575A (https=)
CN (1) CN102163464A (https=)
TW (1) TW201137865A (https=)

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US9129653B2 (en) 2012-04-20 2015-09-08 Avago Technologies General Ip (Singapore) Pte. Ltd. Systems and methods for calibration coasting in a data processing system
US8819521B2 (en) 2012-04-30 2014-08-26 Lsi Corporation Systems and methods for short media defect detection using non-binary coded information
US8675297B2 (en) 2012-06-15 2014-03-18 Lsi Corporation Media defect classification
US9076492B2 (en) 2012-07-12 2015-07-07 Lsi Corporation Systems and methods for rapid erasure retry decoding
US8826110B2 (en) 2012-07-17 2014-09-02 Lsi Corporation Systems and methods for defect scanning
US8732562B2 (en) 2012-07-25 2014-05-20 Lsi Corporation Systems and methods for improved short media defect detection
US8972800B2 (en) * 2012-07-30 2015-03-03 Lsi Corporation Systems and methods for enhanced media defect detection
US9245586B2 (en) 2012-10-18 2016-01-26 Avago Technologies General Ip (Singapore) Pte. Ltd. Systems and methods for short media defect detection using multi-iteration soft data feedback
US8996970B2 (en) 2012-10-24 2015-03-31 Lsi Corporation Systems and methods for positive feedback short media defect detection
US8687301B1 (en) * 2013-01-08 2014-04-01 Lsi Corporation Parallel no-sync-mark retry
US9244752B2 (en) 2013-05-02 2016-01-26 Avago Technologies General Ip (Singapore) Pte. Ltd. Systems and methods for detecting media flaws
US8917468B1 (en) 2013-06-06 2014-12-23 Lsi Corporation Systems and methods for media defect detection with pattern qualification
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Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN108630241A (zh) * 2017-03-23 2018-10-09 株式会社东芝 储存器装置及控制器
US10614853B2 (en) 2017-03-23 2020-04-07 Kabushiki Kaisha Toshiba Storage device and controller
CN108630241B (zh) * 2017-03-23 2020-10-30 株式会社东芝 储存器装置及控制器

Also Published As

Publication number Publication date
KR20110097575A (ko) 2011-08-31
EP2360696A1 (en) 2011-08-24
JP2011175721A (ja) 2011-09-08
US20110205653A1 (en) 2011-08-25
TW201137865A (en) 2011-11-01

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Application publication date: 20110824