JP2004185682A5 - - Google Patents
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- Publication number
- JP2004185682A5 JP2004185682A5 JP2002348795A JP2002348795A JP2004185682A5 JP 2004185682 A5 JP2004185682 A5 JP 2004185682A5 JP 2002348795 A JP2002348795 A JP 2002348795A JP 2002348795 A JP2002348795 A JP 2002348795A JP 2004185682 A5 JP2004185682 A5 JP 2004185682A5
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- JP
- Japan
- 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.)
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Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002348795A JP2004185682A (ja) | 2002-11-29 | 2002-11-29 | 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 |
| US10/676,410 US7019933B2 (en) | 2002-11-29 | 2003-09-30 | Servo information write method, servo control method, data storage device, and program |
| SG200306852A SG123577A1 (en) | 2002-11-29 | 2003-11-20 | Servo information write method, servo control method, data storage device, and program |
| TW092133396A TW200423061A (en) | 2002-11-29 | 2003-11-27 | Servo information write method, servo control method, data storage device, and program |
| CNB2003101186692A CN1329886C (zh) | 2002-11-29 | 2003-11-28 | 伺服信息写入方法、伺服控制方法、数据存储设备 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002348795A JP2004185682A (ja) | 2002-11-29 | 2002-11-29 | 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2004185682A JP2004185682A (ja) | 2004-07-02 |
| JP2004185682A5 true JP2004185682A5 (ja) | 2006-01-19 |
Family
ID=32652569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002348795A Pending JP2004185682A (ja) | 2002-11-29 | 2002-11-29 | 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 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7019933B2 (ja) |
| JP (1) | JP2004185682A (ja) |
| CN (1) | CN1329886C (ja) |
| SG (1) | SG123577A1 (ja) |
| TW (1) | TW200423061A (ja) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7027252B2 (en) * | 2004-03-31 | 2006-04-11 | Hitachi Global Storage Technologies Netherlands B.V. | Servo track writer calibration |
| 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 |
| US7006316B1 (en) * | 2004-08-16 | 2006-02-28 | Western Digital Technologies, Inc. | Estimating a writer/reader gap in a disk drive by measuring write/read times relative to a sync mark |
| JP2006085781A (ja) * | 2004-09-14 | 2006-03-30 | Hitachi Global Storage Technologies Netherlands Bv | 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 |
| JP2006085782A (ja) * | 2004-09-14 | 2006-03-30 | Hitachi Global Storage Technologies Netherlands Bv | 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 |
| JP4708112B2 (ja) * | 2005-08-01 | 2011-06-22 | 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 | 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 |
| KR100652436B1 (ko) | 2005-10-11 | 2006-12-01 | 삼성전자주식회사 | 하드디스크 드라이브의 레퍼런스 서보 신호 기록 방법 및이에 적합한 장치 |
| US7486467B2 (en) * | 2005-11-28 | 2009-02-03 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic disk drive and method for registering defective sector using timing control of pattern writing |
| US7405897B2 (en) * | 2006-12-15 | 2008-07-29 | Hitachi Global Storage Technologies Netherlands | Single-pass self-servowriting method and system employing a low sector rate startup procedure |
| JP2008204494A (ja) * | 2007-02-16 | 2008-09-04 | Fujitsu Ltd | 記憶装置、記憶制御回路及びヘッド位置ずれ測定方法 |
| JP2009009624A (ja) * | 2007-06-26 | 2009-01-15 | Hitachi Global Storage Technologies Netherlands Bv | サーボパターン形成方法および磁気ディスク装置 |
| JP4858919B2 (ja) * | 2008-05-09 | 2012-01-18 | 東芝ストレージデバイス株式会社 | 記憶装置、記憶装置の制御回路およびサーボライト方式識別方法 |
| JP2010027112A (ja) * | 2008-07-16 | 2010-02-04 | Hitachi Global Storage Technologies Netherlands Bv | 磁気ディスクにサーボパターンを形成する方法および装置 |
| JP2010040146A (ja) * | 2008-08-07 | 2010-02-18 | Hitachi Global Storage Technologies Netherlands Bv | 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 |
| US7881004B2 (en) * | 2008-09-18 | 2011-02-01 | Hitachi Global Storage Technologies, Netherlands, B.V. | Adaptive track shape control during self servo-write |
| US9013818B1 (en) | 2013-12-06 | 2015-04-21 | Western Digital Technologies, Inc. | Disk drive measuring reader/writer gap by measuring fractional clock cycle over disk radius |
| JP2016177854A (ja) * | 2015-03-20 | 2016-10-06 | 株式会社東芝 | サーボライト制御装置、方法および磁気ディスク装置 |
| US9437232B1 (en) * | 2015-07-15 | 2016-09-06 | HGST Netherlands B.V. | Magnetic recording disk drive with write position error signal values written in the data tracks for compensation of track misregistration |
| US9905257B2 (en) * | 2016-02-03 | 2018-02-27 | Kabushiki Kaisha Toshiba | Hard disk drive, manufacturing method of the same, and servo data writing method |
| US11417363B1 (en) * | 2021-06-25 | 2022-08-16 | Western Digital Technologies, Inc. | Data storage device calibrating write parameter by pressing actuator against crash stop |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5612833A (en) * | 1994-12-02 | 1997-03-18 | International Business Machines Corporation | Radial self-propagation pattern generation for disk file servowriting |
| US6707632B1 (en) * | 2000-02-08 | 2004-03-16 | Seagate Technology Llc | Disc drive with self-contained servo data writing capability |
| US6603627B1 (en) | 2000-05-31 | 2003-08-05 | Hitachi Global Storage Technologies Netherlands B.V. | Creating an initial set of tracks in a self-servowriting system using a compliant crashstop to control head movement |
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2002
- 2002-11-29 JP JP2002348795A patent/JP2004185682A/ja active Pending
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2003
- 2003-09-30 US US10/676,410 patent/US7019933B2/en not_active Expired - Fee Related
- 2003-11-20 SG SG200306852A patent/SG123577A1/en unknown
- 2003-11-27 TW TW092133396A patent/TW200423061A/zh unknown
- 2003-11-28 CN CNB2003101186692A patent/CN1329886C/zh not_active Expired - Fee Related