DE60326521D1 - Verfahren und Vorrichtung zur Messung der magnetischen Schreibweite eines Magnetkopfes unter Verwendung eines Burstmusters - Google Patents

Verfahren und Vorrichtung zur Messung der magnetischen Schreibweite eines Magnetkopfes unter Verwendung eines Burstmusters

Info

Publication number
DE60326521D1
DE60326521D1 DE60326521T DE60326521T DE60326521D1 DE 60326521 D1 DE60326521 D1 DE 60326521D1 DE 60326521 T DE60326521 T DE 60326521T DE 60326521 T DE60326521 T DE 60326521T DE 60326521 D1 DE60326521 D1 DE 60326521D1
Authority
DE
Germany
Prior art keywords
measuring
magnetic
burst pattern
write width
magnetic head
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 - Lifetime
Application number
DE60326521T
Other languages
English (en)
Inventor
Chang-Dong Yeo
Jong-Yoon Kim
Cheol-Hoon Park
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Application granted granted Critical
Publication of DE60326521D1 publication Critical patent/DE60326521D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G11B5/09—Digital recording
    • 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
    • G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
    • 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
    • G11B2005/001—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure
    • 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
    • G11B2005/001—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure
    • G11B2005/0013—Controlling recording characteristics of record carriers or transducing characteristics of transducers by means not being part of their structure of transducers, e.g. linearisation, equalisation
    • 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
    • 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
    • G11B5/455—Arrangements for functional testing of heads; Measuring arrangements for heads
DE60326521T 2002-07-18 2003-07-18 Verfahren und Vorrichtung zur Messung der magnetischen Schreibweite eines Magnetkopfes unter Verwendung eines Burstmusters Expired - Lifetime DE60326521D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR10-2002-0041989A KR100455391B1 (ko) 2002-07-18 2002-07-18 버스트 패턴을 이용하여 자기헤드의 자기기록폭을측정하는 방법 및 그 장치

Publications (1)

Publication Number Publication Date
DE60326521D1 true DE60326521D1 (de) 2009-04-23

Family

ID=29775026

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60326521T Expired - Lifetime DE60326521D1 (de) 2002-07-18 2003-07-18 Verfahren und Vorrichtung zur Messung der magnetischen Schreibweite eines Magnetkopfes unter Verwendung eines Burstmusters

Country Status (5)

Country Link
US (1) US6992849B2 (de)
EP (1) EP1383114B1 (de)
JP (1) JP3909044B2 (de)
KR (1) KR100455391B1 (de)
DE (1) DE60326521D1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100459718B1 (ko) * 2002-08-28 2004-12-03 삼성전자주식회사 하드 디스크 드라이브에 있어서 헤드의 자기 기록폭을 측정하는 프로그램이 기록된 기록 매체
US8261062B2 (en) * 2003-03-27 2012-09-04 Microsoft Corporation Non-cryptographic addressing
JP2005276352A (ja) * 2004-03-25 2005-10-06 Fuji Photo Film Co Ltd 磁気記録媒体およびその製造方法、その製造方法において用いられる磁気転写用パターンドマスター担体、ならびに磁気記録再生装置
US7567397B2 (en) * 2006-09-11 2009-07-28 Hitachi Global Storage Technologies Netherlands B.V. Adjacent Track Interference (ATI) identification methodology
US7529050B2 (en) * 2006-10-18 2009-05-05 Hitachi Global Storage Technologies Netherlands B.V. Track width measurement for magnetic recording heads
US7982989B1 (en) * 2009-12-23 2011-07-19 Western Digital (Fremont), Llc Method and system for measuring magnetic interference width
US8970980B1 (en) 2011-06-27 2015-03-03 Western Digital Technologies, Inc. Disk drive evaluating burst metric
US8717695B1 (en) 2012-02-29 2014-05-06 Western Digital (Fremont), Llc Characterizing head parameters of a disk drive by evaluating track profile of an overwritten track
US8625224B1 (en) 2012-05-04 2014-01-07 Western Digital (Fremont), Llc Characterizing magnetic recording parameters of a disk drive by evaluating track profile of dual microtracks
US9387568B1 (en) * 2013-02-27 2016-07-12 Western Digital Technologies, Inc. Systems and methods for correcting fabrication error in magnetic recording heads using magnetic write width measurements
US8908310B1 (en) 2013-07-11 2014-12-09 Western Digital Technologies, Inc. Adaptive shingle guard band
US8736995B1 (en) 2013-09-05 2014-05-27 Seagate Technology Llc Identifying track pitch capability of a recording device

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03232103A (ja) * 1990-02-07 1991-10-16 Fujitsu Ltd 磁気記録装置のクロストーク除去方法
JPH06111502A (ja) * 1992-09-30 1994-04-22 Sony Corp 磁気ディスク装置
US6061201A (en) * 1994-02-07 2000-05-09 Seagate Technology, Inc. Method of measuring the read-to-write offset in a disc drive having separate read and write elements
US6005725A (en) * 1994-12-19 1999-12-21 Mobile Storage Technology Inc. Variable zone layout and track pitch parameter considerations for information storage disk drive
US6265868B1 (en) * 1997-12-11 2001-07-24 Seagate Technology Llc System and method for measuring total track width of a test track in magnetic media
US6778343B2 (en) * 1998-03-25 2004-08-17 Hitachi Global Storage Technologies Netherlands Bv Method, apparatus and storage system having storage media with different track pitch based upon a width of a write element associated therewith
JP2000182201A (ja) * 1998-12-16 2000-06-30 Hitachi Ltd 磁気記録媒体評価装置
JP3757071B2 (ja) * 1999-01-21 2006-03-22 株式会社日立グローバルストレージテクノロジーズ 磁気ディスク装置
US6469855B1 (en) * 1999-04-30 2002-10-22 International Business Machines Corporation Method and system for adaptive settle and write inhibit constraints based on head geometry and servo/mechanical system
US6317285B1 (en) * 1999-10-28 2001-11-13 Seagate Technology Llc Method for calibrating MR head geometry in selfservo writing disc drives
JP2001176003A (ja) * 1999-12-17 2001-06-29 Hitachi Ltd 磁気ディスクの磁気的欠陥検査方法
US7342741B1 (en) * 2000-02-10 2008-03-11 Esgw Holdings Limited Disk drive with variable track density
US6693763B2 (en) * 2000-07-26 2004-02-17 Seagate Technology Llc Method for linearizing microactuator hysteresis for a disc drive
WO2002027887A1 (en) * 2000-09-27 2002-04-04 Seagate Technology Llc Automated drive-level microtrack profile using variable gain amplifier
GB2383463B (en) * 2000-10-10 2004-07-14 Seagate Technology Llc Method to measure signal decay and a device therefor
US6963458B2 (en) * 2002-02-28 2005-11-08 Hitachi Global Storage Technologies, Netherlands B.V. Method and apparatus for reducing the servo position error signal non-linearity during self-servo writing irrespective of the head width
US7046471B2 (en) * 2002-07-31 2006-05-16 Seagate Technology Llc Method and apparatus for utilizing variable tracks per inch to reduce bits per inch for a head
US7023633B2 (en) * 2003-01-31 2006-04-04 Hitachi Global Storage Technologies Netherland B.V. Adaptive track count determination for a self-servowritten disk drive

Also Published As

Publication number Publication date
KR20040008363A (ko) 2004-01-31
EP1383114A2 (de) 2004-01-21
JP3909044B2 (ja) 2007-04-25
US6992849B2 (en) 2006-01-31
US20040080845A1 (en) 2004-04-29
EP1383114A3 (de) 2005-10-05
JP2004055136A (ja) 2004-02-19
KR100455391B1 (ko) 2004-11-06
EP1383114B1 (de) 2009-03-11

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