JP2006085781A - データ記憶装置のヘッド特性を測定する方法及びデータ記憶装置 - Google Patents

データ記憶装置のヘッド特性を測定する方法及びデータ記憶装置 Download PDF

Info

Publication number
JP2006085781A
JP2006085781A JP2004267531A JP2004267531A JP2006085781A JP 2006085781 A JP2006085781 A JP 2006085781A JP 2004267531 A JP2004267531 A JP 2004267531A JP 2004267531 A JP2004267531 A JP 2004267531A JP 2006085781 A JP2006085781 A JP 2006085781A
Authority
JP
Japan
Prior art keywords
pattern
read
write
head
value
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.)
Withdrawn
Application number
JP2004267531A
Other languages
English (en)
Japanese (ja)
Other versions
JP2006085781A5 (enExample
Inventor
Satoshi Yamamoto
智 山本
Fuminori Sai
文憲 佐井
Kenji Okada
謙二 岡田
Yuzuru Hashimoto
譲 橋本
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 Netherlands BV
HGST Inc
Original Assignee
Hitachi Global Storage Technologies Netherlands BV
Hitachi Global Storage Technologies Inc
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 Hitachi Global Storage Technologies Netherlands BV, Hitachi Global Storage Technologies Inc filed Critical Hitachi Global Storage Technologies Netherlands BV
Priority to JP2004267531A priority Critical patent/JP2006085781A/ja
Priority to US11/222,913 priority patent/US7446967B2/en
Publication of JP2006085781A publication Critical patent/JP2006085781A/ja
Publication of JP2006085781A5 publication Critical patent/JP2006085781A5/ja
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • G11B5/455—Arrangements for functional testing of heads; Measuring arrangements for heads
    • 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
    • G11B5/59633—Servo formatting
    • 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
    • G11B5/59633—Servo formatting
    • G11B5/59666—Self servo writing
    • 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
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3163—Fabrication methods or processes specially adapted for a particular head structure, e.g. using base layers for electroplating, using functional layers for masking, using energy or particle beams for shaping the structure or modifying the properties of the basic layers
    • G11B5/3166—Testing or indicating in relation thereto, e.g. before the fabrication is completed

Landscapes

  • Moving Of The Head To Find And Align With The Track (AREA)
JP2004267531A 2004-09-14 2004-09-14 データ記憶装置のヘッド特性を測定する方法及びデータ記憶装置 Withdrawn JP2006085781A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2004267531A JP2006085781A (ja) 2004-09-14 2004-09-14 データ記憶装置のヘッド特性を測定する方法及びデータ記憶装置
US11/222,913 US7446967B2 (en) 2004-09-14 2005-09-08 Method of measuring head characteristics of a data storage device, and data storage device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004267531A JP2006085781A (ja) 2004-09-14 2004-09-14 データ記憶装置のヘッド特性を測定する方法及びデータ記憶装置

Publications (2)

Publication Number Publication Date
JP2006085781A true JP2006085781A (ja) 2006-03-30
JP2006085781A5 JP2006085781A5 (enExample) 2007-10-25

Family

ID=36033652

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004267531A Withdrawn JP2006085781A (ja) 2004-09-14 2004-09-14 データ記憶装置のヘッド特性を測定する方法及びデータ記憶装置

Country Status (2)

Country Link
US (1) US7446967B2 (enExample)
JP (1) JP2006085781A (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7751144B1 (en) 2004-07-15 2010-07-06 Marvell International Ltd. Self-servo-write using ramp-tracks
US7209312B1 (en) * 2004-07-15 2007-04-24 Marvell International Ltd. Self-servo-write using ramp-tracks
US7859783B2 (en) * 2007-10-09 2010-12-28 Samsung Electronics Co., Ltd. Increased format efficiency using disk synchronized write
US7880991B2 (en) * 2007-10-09 2011-02-01 Samsung Electronics Co., Ltd. Write timing system for hard disk drives with bit patterned media
US10089189B2 (en) * 2016-04-15 2018-10-02 Motorola Solutions, Inc. Devices and methods for receiving a data file in a communication system

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6040955A (en) 1992-06-11 2000-03-21 International Business Machines Corporation Self servo writing file
US5485322A (en) 1993-03-08 1996-01-16 International Business Machines Corporation Method and system for writing a clock track on a storage medium
US5875064A (en) * 1996-07-09 1999-02-23 International Business Machines Corporation Method and system for accurate self-servowriting with normalization in a disk drive
US5926336A (en) * 1996-09-13 1999-07-20 Samsung Electronics Co., Ltd. Method and apparatus for rewriting servo information on a disk in a hard disk assembly
US6519107B1 (en) 1999-09-24 2003-02-11 Maxtor Corporation Hard disk drive having self-written servo burst patterns
JP3787497B2 (ja) 2001-02-06 2006-06-21 株式会社日立グローバルストレージテクノロジーズ 磁気ディスク装置およびサーボ信号記録方法
JP2002367308A (ja) 2001-06-06 2002-12-20 Hitachi Ltd 磁気ディスク装置およびサーボライト方法
JP2003141835A (ja) 2001-11-05 2003-05-16 Hitachi Ltd 磁気ディスク装置及びサーボ信号書込み方法
JP2004063043A (ja) 2002-07-31 2004-02-26 Toshiba Corp サーボライタ装置及びサーボライト方法
JP2004185682A (ja) * 2002-11-29 2004-07-02 Hitachi Global Storage Technologies Netherlands Bv サーボ情報の書き込み方法、サーボ制御方法、データ記憶装置、プログラム
US7215498B2 (en) * 2004-06-18 2007-05-08 Matsushita Electric Industrial Co., Ltd. Dynamic stroke optimization in the self servo-write process

Also Published As

Publication number Publication date
US7446967B2 (en) 2008-11-04
US20060056097A1 (en) 2006-03-16

Similar Documents

Publication Publication Date Title
US7154689B1 (en) Apparatus for writing servo bursts on a disk with servo track pitch based on read element width and methods of manufacturing same
US7995304B2 (en) Circuits that use a postamble signal to determine phase and frequency errors in the acquisition of a preamble signal
US20080239906A1 (en) Magnetic recording media, method for servowriting on same, and hard disk drive
US20090009904A1 (en) Method for forming servo pattern and magnetic disk drive
US7573669B2 (en) Method and apparatus for writing pattern on disk
JP2006085780A (ja) 記録ディスクにパターンを書き込む方法及びデータ記憶装置
US6943977B2 (en) Method and apparatus for servo writing in a disk drive
KR100532478B1 (ko) 오프라인 셀프 서보 기록 방법 및 이를 이용한 디스크드라이브
JP2006085782A (ja) 記録ディスクにパターンを書き込む方法及びデータ記憶装置
US7184234B2 (en) Compensation for jitter in servo signal within data storage device
JP2006085781A (ja) データ記憶装置のヘッド特性を測定する方法及びデータ記憶装置
JP4368332B2 (ja) 記録ディスクへのパターン書き込み方法及びデータ記憶装置
US7532424B2 (en) Method of writing pattern on media and data storage device
US7567406B2 (en) Method of writing pattern on magnetic disk and device therefor
US20070253095A1 (en) Pattern write method and demagnetization state determination method
US7079347B2 (en) Method and apparatus for providing a marker for adaptive formatting via a self-servowrite process
JP5064666B2 (ja) データ記憶装置及びそのユーザ・データの書き込み制御方法
JP4799913B2 (ja) データ記憶装置、パラメータ決定方法及びそのヘッドの位置制御信号値を決定する方法
JP2010040146A (ja) サーボ・パターンの書き込み方法及びディスク・ドライブ装置
JP4717610B2 (ja) メディアにパターンを書き込む方法及びデータ記憶装置
JP4717611B2 (ja) メディアにパターンを書き込む方法及びデータ記憶装置
JP2007087454A (ja) サーボ・パターンの記録方法、ディスク装置の製造方法、及びディスク装置
JP2007287252A (ja) ディスク記録面のイレーズ方法
JP2007220204A (ja) ディスク・ドライブ装置のテスト方法
JP2007287247A (ja) 記録面にパターンを書き込む方法

Legal Events

Date Code Title Description
A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20070907

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20070907

A761 Written withdrawal of application

Free format text: JAPANESE INTERMEDIATE CODE: A761

Effective date: 20090515