CN101656080B - 用于写同步校正的时移位 - Google Patents

用于写同步校正的时移位 Download PDF

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Publication number
CN101656080B
CN101656080B CN200910170413.3A CN200910170413A CN101656080B CN 101656080 B CN101656080 B CN 101656080B CN 200910170413 A CN200910170413 A CN 200910170413A CN 101656080 B CN101656080 B CN 101656080B
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CN
China
Prior art keywords
data array
magnetic storage
write
grouping
point
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.)
Expired - Fee Related
Application number
CN200910170413.3A
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English (en)
Chinese (zh)
Other versions
CN101656080A (zh
Inventor
S·-F·李
A·Y·多宾
D·M·顿
D·S·库
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.)
Seagate Technology LLC
Original Assignee
Seagate Technology LLC
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 Seagate Technology LLC filed Critical Seagate Technology LLC
Publication of CN101656080A publication Critical patent/CN101656080A/zh
Application granted granted Critical
Publication of CN101656080B publication Critical patent/CN101656080B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
    • 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
    • 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
    • G11B20/10222—Improvement or modification of read or write signals clock-related aspects, e.g. phase or frequency adjustment or bit synchronisation
    • 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
    • G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • 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
    • G11B20/1879—Direct read-after-write methods
    • 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
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/743—Patterned record carriers, wherein the magnetic recording layer is patterned into magnetic isolated data islands, e.g. discrete tracks
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/743—Patterned record carriers, wherein the magnetic recording layer is patterned into magnetic isolated data islands, e.g. discrete tracks
    • G11B5/746—Bit Patterned record carriers, wherein each magnetic isolated data island corresponds to a bit
    • 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/855—Coating only part of a support with a magnetic layer
    • 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
    • G11B2005/0002—Special dispositions or recording techniques
    • G11B2005/0005—Arrangements, methods or circuits
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Nanotechnology (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Digital Magnetic Recording (AREA)
  • Magnetic Record Carriers (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
CN200910170413.3A 2008-08-19 2009-08-19 用于写同步校正的时移位 Expired - Fee Related CN101656080B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/194,264 2008-08-19
US12/194,264 US7974036B2 (en) 2008-08-19 2008-08-19 Time-shifted bits for write synchronization correction

Publications (2)

Publication Number Publication Date
CN101656080A CN101656080A (zh) 2010-02-24
CN101656080B true CN101656080B (zh) 2013-11-06

Family

ID=41696154

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200910170413.3A Expired - Fee Related CN101656080B (zh) 2008-08-19 2009-08-19 用于写同步校正的时移位

Country Status (3)

Country Link
US (1) US7974036B2 (enExample)
JP (1) JP5649806B2 (enExample)
CN (1) CN101656080B (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4983268B2 (ja) * 2007-01-16 2012-07-25 Ｔｄｋ株式会社 磁気記録媒体、磁気記録再生装置及び磁気記録媒体の製造方法
JP2012009115A (ja) * 2010-06-28 2012-01-12 Sharp Corp 磁気記録再生装置及び磁気記録媒体
US8848314B2 (en) 2011-12-07 2014-09-30 HGST Netherlands B.V. Write head designed for adjusting relative write phase between subtracks of a patterned media hypertrack
US11119662B2 (en) 2018-06-29 2021-09-14 International Business Machines Corporation Determining when to perform a data integrity check of copies of a data set using a machine learning module
US11099743B2 (en) 2018-06-29 2021-08-24 International Business Machines Corporation Determining when to replace a storage device using a machine learning module
US11119850B2 (en) 2018-06-29 2021-09-14 International Business Machines Corporation Determining when to perform error checking of a storage unit by using a machine learning module

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6738207B1 (en) * 1999-08-18 2004-05-18 Seagate Technology Llc Method for synchronizing the write current for magnetic recording with the bit islands on discrete bit patterned media
CN1758345A (zh) * 2004-09-03 2006-04-12 Tdk股份有限公司 磁记录介质、磁记录再生装置和磁记录制造用压模

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5987610A (ja) 1982-11-10 1984-05-21 Fujitsu Ltd 書込デ−タのプリシフト回路
JPS61144781A (ja) 1984-12-18 1986-07-02 Toshiba Corp デイスク装置
US4669003A (en) 1986-05-02 1987-05-26 Hewlett-Packard Company Method and apparatus for eliminating apparent offset in the servo code in a magnetic disc drive
US5258876A (en) 1991-09-16 1993-11-02 Seagate Technology, Inc. Zone bit recording with write compensation
JP3135447B2 (ja) 1994-01-27 2001-02-13 富士通株式会社 磁気ディスクドライブの制御方法及びその装置
JP3125699B2 (ja) 1996-12-25 2001-01-22 日本電気株式会社 データ同期回路
JP3189774B2 (ja) 1998-01-28 2001-07-16 日本電気株式会社 ビット同期回路
JP3986209B2 (ja) 1998-06-18 2007-10-03 三菱電機株式会社 ビットタイミング同期装置およびその方法
JP3576056B2 (ja) * 1999-12-28 2004-10-13 株式会社東芝 記録媒体の製造方法および記録媒体
JP4185228B2 (ja) * 2000-01-21 2008-11-26 Ｔｄｋ株式会社 磁気記録媒体および磁気記録再生方法
JP2001243601A (ja) * 2000-02-29 2001-09-07 Tdk Corp 磁気記録方法
JP4348851B2 (ja) 2000-09-21 2009-10-21 ソニー株式会社 記録媒体、ディスク記録装置および方法、並びにディスク再生装置及び方法
US7153597B2 (en) * 2001-03-15 2006-12-26 Seagate Technology Llc Magnetic recording media having chemically modified patterned substrate to assemble self organized magnetic arrays
JP3749856B2 (ja) * 2001-11-14 2006-03-01 株式会社東芝 記録装置
JP2003157507A (ja) * 2001-11-16 2003-05-30 Fuji Electric Co Ltd 磁気記録媒体、ディスク状磁気記録媒体の記録再生方法、記録装置
JP4912584B2 (ja) * 2004-12-03 2012-04-11 ヒタチグローバルストレージテクノロジーズネザーランドビーブイ 情報記録装置及び情報記録装置の制御方法
JP2007164890A (ja) 2005-12-13 2007-06-28 Fujitsu Ltd 磁気記憶装置及び磁気ヘッド位置補正方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6738207B1 (en) * 1999-08-18 2004-05-18 Seagate Technology Llc Method for synchronizing the write current for magnetic recording with the bit islands on discrete bit patterned media
CN1758345A (zh) * 2004-09-03 2006-04-12 Tdk股份有限公司 磁记录介质、磁记录再生装置和磁记录制造用压模

Also Published As

Publication number Publication date
US20100046118A1 (en) 2010-02-25
CN101656080A (zh) 2010-02-24
JP2010049787A (ja) 2010-03-04
JP5649806B2 (ja) 2015-01-07
US7974036B2 (en) 2011-07-05

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Granted publication date: 20131106

Termination date: 20210819