SG123577A1 - Servo information write method, servo control method, data storage device, and program - Google Patents
Servo information write method, servo control method, data storage device, and programInfo
- Publication number
- SG123577A1 SG123577A1 SG200306852A SG200306852A SG123577A1 SG 123577 A1 SG123577 A1 SG 123577A1 SG 200306852 A SG200306852 A SG 200306852A SG 200306852 A SG200306852 A SG 200306852A SG 123577 A1 SG123577 A1 SG 123577A1
- Authority
- SG
- Singapore
- Prior art keywords
- program
- storage device
- servo
- data storage
- information write
- Prior art date
Links
- 238000000034 method Methods 0.000 title 2
- 238000013500 data storage Methods 0.000 title 1
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
- G11B5/59633—Servo formatting
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
- G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
- G11B21/106—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following on disks
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 (1)
Publication Number | Publication Date |
---|---|
SG123577A1 true SG123577A1 (en) | 2006-07-26 |
Family
ID=32652569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG200306852A SG123577A1 (en) | 2002-11-29 | 2003-11-20 | Servo information write method, servo control method, data storage device, and program |
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 |
US7209312B1 (en) * | 2004-07-15 | 2007-04-24 | Marvell International Ltd. | Self-servo-write using ramp-tracks |
US7751144B1 (en) | 2004-07-15 | 2010-07-06 | 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 |
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 |
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 |
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 |
Citations (1)
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 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
-
2002
- 2002-11-29 JP JP2002348795A patent/JP2004185682A/ja active Pending
-
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
Patent Citations (1)
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 |
Also Published As
Publication number | Publication date |
---|---|
CN1329886C (zh) | 2007-08-01 |
US20040125491A1 (en) | 2004-07-01 |
US7019933B2 (en) | 2006-03-28 |
CN1506942A (zh) | 2004-06-23 |
JP2004185682A (ja) | 2004-07-02 |
TW200423061A (en) | 2004-11-01 |
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