JP2013186938A - 前置等化器雑音抑圧を含むデータ処理のためのシステム及び方法 - Google Patents

前置等化器雑音抑圧を含むデータ処理のためのシステム及び方法 Download PDF

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JP2013186938A
JP2013186938A JP2013009873A JP2013009873A JP2013186938A JP 2013186938 A JP2013186938 A JP 2013186938A JP 2013009873 A JP2013009873 A JP 2013009873A JP 2013009873 A JP2013009873 A JP 2013009873A JP 2013186938 A JP2013186938 A JP 2013186938A
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circuit
output
data
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data processing
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JP2013186938A5 (enExample
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Shaohua Yan
ヤン，シャオフア
Jin Lu
ルー，ジン
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LSI Corp
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LSI Corp
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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
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
    • 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
    • G11B20/22—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing distortions
    • 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
    • G11B20/10305—Improvement or modification of read or write signals signal quality assessment
    • G11B20/10361—Improvement or modification of read or write signals signal quality assessment digital demodulation process
    • G11B20/10379—Improvement or modification of read or write signals signal quality assessment digital demodulation process based on soft decisions, e.g. confidence values, probability estimates, likelihoods values or path metrics of a statistical decoding 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
    • G11B20/18—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
    • 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
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1816—Testing
    • G11B2020/183—Testing wherein at least one additional attempt is made to read or write the data when a first attempt is unsuccessful
    • 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
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/40—Combinations of multiple record carriers
    • G11B2220/41—Flat as opposed to hierarchical combination, e.g. library of tapes or discs, CD changer, or groups of record carriers that together store one title
    • G11B2220/415—Redundant array of inexpensive disks [RAID] systems

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
JP2013009873A 2012-03-08 2013-01-23 前置等化器雑音抑圧を含むデータ処理のためのシステム及び方法 Pending JP2013186938A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/415,326 2012-03-08
US13/415,326 US8731115B2 (en) 2012-03-08 2012-03-08 Systems and methods for data processing including pre-equalizer noise suppression

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JP2013186938A true JP2013186938A (ja) 2013-09-19
JP2013186938A5 JP2013186938A5 (enExample) 2016-02-18

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US (1) US8731115B2 (enExample)
EP (1) EP2637170A1 (enExample)
JP (1) JP2013186938A (enExample)
KR (1) KR20130103351A (enExample)
CN (1) CN103310816A (enExample)
TW (1) TW201401272A (enExample)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9058842B2 (en) * 2012-07-18 2015-06-16 Lsi Corporation Systems and methods for gate aware iterative data processing
US9318153B2 (en) * 2014-03-31 2016-04-19 Seagate Technology Llc HAMR drive fault detection system
US9378765B2 (en) 2014-04-03 2016-06-28 Seagate Technology Llc Systems and methods for differential message scaling in a decoding process
JP2018160302A (ja) * 2017-03-23 2018-10-11 株式会社東芝 ストレージ装置及びコントローラ

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Also Published As

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CN103310816A (zh) 2013-09-18
US8731115B2 (en) 2014-05-20
EP2637170A1 (en) 2013-09-11
US20130235920A1 (en) 2013-09-12
TW201401272A (zh) 2014-01-01
KR20130103351A (ko) 2013-09-23

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