CN100454427C - 磁盘装置及其制造方法 - Google Patents

磁盘装置及其制造方法 Download PDF

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Publication number
CN100454427C
CN100454427C CNB2005100811002A CN200510081100A CN100454427C CN 100454427 C CN100454427 C CN 100454427C CN B2005100811002 A CNB2005100811002 A CN B2005100811002A CN 200510081100 A CN200510081100 A CN 200510081100A CN 100454427 C CN100454427 C CN 100454427C
Authority
CN
China
Prior art keywords
track
pulse
defective
magnetic track
disk set
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
CNB2005100811002A
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English (en)
Chinese (zh)
Other versions
CN1725356A (zh
Inventor
梅村薰
鹫津一彦
嵨村直基
高泽修
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.)
HGST Inc
Original Assignee
Hitachi Global Storage Technologies Inc
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Filing date
Publication date
Application filed by Hitachi Global Storage Technologies Inc filed Critical Hitachi Global Storage Technologies Inc
Publication of CN1725356A publication Critical patent/CN1725356A/zh
Application granted granted Critical
Publication of CN100454427C publication Critical patent/CN100454427C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • G11B5/48—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
    • 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
    • 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
    • G11B5/56—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 support for the purpose of adjusting the position of the head relative to the record carrier, e.g. manual adjustment for azimuth correction or track centering
    • 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

Landscapes

  • Moving Of The Head To Find And Align With The Track (AREA)
CNB2005100811002A 2004-06-29 2005-06-29 磁盘装置及其制造方法 Expired - Fee Related CN100454427C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004191183A JP2006012353A (ja) 2004-06-29 2004-06-29 ディスク装置及びその製造方法
JP2004191183 2004-06-29

Publications (2)

Publication Number Publication Date
CN1725356A CN1725356A (zh) 2006-01-25
CN100454427C true CN100454427C (zh) 2009-01-21

Family

ID=35505385

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2005100811002A Expired - Fee Related CN100454427C (zh) 2004-06-29 2005-06-29 磁盘装置及其制造方法

Country Status (3)

Country Link
US (1) US7423825B2 (enExample)
JP (1) JP2006012353A (enExample)
CN (1) CN100454427C (enExample)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8397998B1 (en) 1999-10-23 2013-03-19 Ultracard, Inc. Data storage device, apparatus and method for using same
US7487908B1 (en) * 1999-10-23 2009-02-10 Ultracard, Inc. Article having an embedded accessible storage member, apparatus and method for using same
CN100429697C (zh) * 2005-02-16 2008-10-29 Tdk股份有限公司 磁记录介质、记录重放装置及压印模
US20100002326A1 (en) * 2006-05-11 2010-01-07 Ade Technologies, Inc. Method and system for perpendicular magnetic media metrology
JP2008234822A (ja) * 2007-02-21 2008-10-02 Hitachi High-Technologies Corp 磁気ディスクの検査方法および磁気ディスク検査装置
WO2009028014A1 (ja) * 2007-08-30 2009-03-05 Fujitsu Limited デイスク装置の製造方法、記憶ディスクのサーボ情報書き込み方法及びデイスク装置
US7787205B2 (en) * 2007-10-02 2010-08-31 Seagate Technology Llc Detecting and correcting insertion and deletion of bits for bit patterned media storage systems
KR20090084197A (ko) * 2008-01-31 2009-08-05 삼성전자주식회사 하드 디스크 드라이브의 불량 서보 트랙 검출 방법
US7715144B2 (en) * 2008-03-31 2010-05-11 Kabushiki Kaisha Toshiba Track error measurement and recovery
US20130073790A1 (en) * 2011-09-16 2013-03-21 Avalanche Technology, Inc. Magnetic random access memory with burst access
JP5902025B2 (ja) 2012-04-23 2016-04-13 株式会社日立製作所 マイクロ波アシスト磁気記録によるサーボパターン、垂直磁気記録媒体、磁気記憶装置、及びその製造方法
JP5894868B2 (ja) * 2012-06-18 2016-03-30 株式会社日立製作所 マイクロ波アシスト磁気記録方式及び磁気記憶装置
JP7170583B2 (ja) * 2019-05-17 2022-11-14 株式会社東芝 磁気記録装置及びその磁気ヘッド制御方法
US10818319B1 (en) * 2019-10-23 2020-10-27 International Business Machines Corporation Read error recovery in a tape drive

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5781360A (en) * 1991-06-26 1998-07-14 Maxtor Corporation Method and apparatus for detecting data track misregistration
CN1389868A (zh) * 2001-02-26 2003-01-08 松下电器产业株式会社 磁盘存储装置
WO2004017321A1 (en) * 2002-08-19 2004-02-26 Koninklijke Philips Electronics N.V. Detecting anomalies in a scanning signal

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4498146A (en) * 1982-07-30 1985-02-05 At&T Bell Laboratories Management of defects in storage media
JP2611730B2 (ja) 1993-11-29 1997-05-21 日本電気株式会社 トラック幅検査装置
JP3123710B2 (ja) * 1997-07-22 2001-01-15 インターナショナル・ビジネス・マシーンズ・コーポレ−ション ディスク装置、トラック位置決め方法及び位置誤差信号生成方法
US6005740A (en) * 1997-10-01 1999-12-21 Maxtor Corporation Method and apparatus for developing position error curves for magneto-resistive heads
US6791778B2 (en) * 2000-09-14 2004-09-14 Samsung Electronics Co., Inc. Method and apparatus to detect and manage servo sectors with defect on servo pattern area in hard disk drives
US6906883B2 (en) * 2000-09-14 2005-06-14 Samsung Electronics Ltd., Co. Servo defect management scheme in hard disk drives
US6785084B2 (en) * 2000-10-24 2004-08-31 Seagate Technology Llc Correction of dynamic track spacing errors in storage devices
JP2002260355A (ja) * 2001-02-27 2002-09-13 Internatl Business Mach Corp <Ibm> 回転記録装置の検査方法および回転記録装置
KR100688492B1 (ko) * 2002-05-11 2007-03-09 삼성전자주식회사 하드 디스크 드라이브를 위한 오프 트랙 발생 예방 방법및 장치

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5781360A (en) * 1991-06-26 1998-07-14 Maxtor Corporation Method and apparatus for detecting data track misregistration
CN1389868A (zh) * 2001-02-26 2003-01-08 松下电器产业株式会社 磁盘存储装置
WO2004017321A1 (en) * 2002-08-19 2004-02-26 Koninklijke Philips Electronics N.V. Detecting anomalies in a scanning signal

Also Published As

Publication number Publication date
CN1725356A (zh) 2006-01-25
US20050286156A1 (en) 2005-12-29
JP2006012353A (ja) 2006-01-12
US7423825B2 (en) 2008-09-09

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090121