SG110137A1 - Method and apparatus for determining track pitch for writing servo information in a disk drive - Google Patents
Method and apparatus for determining track pitch for writing servo information in a disk driveInfo
- Publication number
- SG110137A1 SG110137A1 SG200405090A SG200405090A SG110137A1 SG 110137 A1 SG110137 A1 SG 110137A1 SG 200405090 A SG200405090 A SG 200405090A SG 200405090 A SG200405090 A SG 200405090A SG 110137 A1 SG110137 A1 SG 110137A1
- Authority
- SG
- Singapore
- Prior art keywords
- disk drive
- track pitch
- servo information
- writing servo
- determining track
- Prior art date
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
- G11B5/48—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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003337749A JP4077387B2 (ja) | 2003-09-29 | 2003-09-29 | ディスク記憶装置、サーボ書込み装置及びトラック間隔決定方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
SG110137A1 true SG110137A1 (en) | 2005-04-28 |
Family
ID=34373287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG200405090A SG110137A1 (en) | 2003-09-29 | 2004-09-15 | Method and apparatus for determining track pitch for writing servo information in a disk drive |
Country Status (4)
Country | Link |
---|---|
US (1) | US7268962B2 (ja) |
JP (1) | JP4077387B2 (ja) |
CN (1) | CN1296898C (ja) |
SG (1) | SG110137A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7130146B2 (en) * | 2005-03-16 | 2006-10-31 | Matsushita Electric Industrial Co., Ltd. | Two-pass-per-track servo burst patterns |
JP2007294050A (ja) * | 2006-04-26 | 2007-11-08 | Hitachi Global Storage Technologies Netherlands Bv | パターン書き込み方法及び磁化消去状態の判定方法 |
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 |
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 |
US9286926B1 (en) | 2015-08-25 | 2016-03-15 | HGST Netherlands B.V. | Two-dimensional magnetic recording (TDMR) disk drive with varying servo track pitch |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6215606B1 (en) * | 1993-03-08 | 2001-04-10 | International Business Machines Corporation | Method and system for determining the widest recording head of a recording device |
US5485322A (en) | 1993-03-08 | 1996-01-16 | International Business Machines Corporation | Method and system for writing a clock track on a storage medium |
JP2611731B2 (ja) | 1993-11-29 | 1997-05-21 | 日本電気株式会社 | トラック幅検査装置 |
KR100194026B1 (ko) * | 1996-05-27 | 1999-06-15 | 윤종용 | 트랙폭 측정 방법 |
US6101064A (en) * | 1997-08-08 | 2000-08-08 | Quantum Corporation | Methods and apparatus for efficiently controlling a read/write head in a computer disk drive |
GB2346254B (en) | 1997-10-10 | 2002-06-19 | Seagate Technology | Extended position error signal linearization and normalization |
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 |
US6600621B1 (en) * | 2000-05-31 | 2003-07-29 | Hitachi Global Storage Technologies Netherlands B.V. | Techniques for multitrack positioning and controlling error growth in self-servowriting systems |
JP2002237142A (ja) * | 2001-02-09 | 2002-08-23 | Matsushita Electric Ind Co Ltd | 磁気記憶媒体、そのトラックピッチ制御方法、その媒体のための磁気記録装置 |
US6765744B2 (en) * | 2001-03-30 | 2004-07-20 | Kevin Arthur Gomez | Track pitch control using head offset measurement for self-servowriting tracks in a disc drive |
US6885514B1 (en) * | 2001-07-31 | 2005-04-26 | Western Digital Technologies, Inc. | Method of manufacturing and disk drive produced by measuring the read and write widths and varying the track pitch in the servo-writer |
JP3784678B2 (ja) * | 2001-08-30 | 2006-06-14 | 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そのサーボ信号記録方法 |
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 |
KR100688492B1 (ko) * | 2002-05-11 | 2007-03-09 | 삼성전자주식회사 | 하드 디스크 드라이브를 위한 오프 트랙 발생 예방 방법및 장치 |
JP3689066B2 (ja) * | 2002-05-22 | 2005-08-31 | 株式会社東芝 | ディスク記憶装置及びサーボライト方法 |
JP2004171726A (ja) * | 2002-11-22 | 2004-06-17 | Hitachi Ltd | 磁気ディスク装置のトラックピッチ測定方法 |
US7095575B2 (en) * | 2003-09-04 | 2006-08-22 | Matsushita Electric Industrial Co., Ltd. | Magnetic disk apparatus, method for determining data track pitch, and self-servo write method |
US7116510B2 (en) * | 2003-09-29 | 2006-10-03 | Hitachi Global Storage Technologies Netherlands B.V. | Servo self-write disk drive with dual-stage actuator |
-
2003
- 2003-09-29 JP JP2003337749A patent/JP4077387B2/ja not_active Expired - Fee Related
-
2004
- 2004-09-15 SG SG200405090A patent/SG110137A1/en unknown
- 2004-09-22 US US10/946,646 patent/US7268962B2/en not_active Expired - Fee Related
- 2004-09-24 CN CNB2004100117505A patent/CN1296898C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US7268962B2 (en) | 2007-09-11 |
CN1296898C (zh) | 2007-01-24 |
US20050068662A1 (en) | 2005-03-31 |
JP2005108296A (ja) | 2005-04-21 |
JP4077387B2 (ja) | 2008-04-16 |
CN1604197A (zh) | 2005-04-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SG117547A1 (en) | Method and apparatus for servo writing in a disk drive | |
SG111196A1 (en) | Method and apparatus for writing servo data in a disk drive | |
SG112102A1 (en) | Method and apparatus for data reproducing using iterative decoding in a disk drive | |
TWI319181B (en) | Information recording medium, recording/reproducing method, and recording/reproducing apparatus | |
SG108950A1 (en) | Method and apparatus for servo writing using incorporated servo writer in a disk drive | |
AU2001285098A1 (en) | Method and apparatus for writing data in a disk drive | |
SG116656A1 (en) | Data erasure apparatus, data erasure method and m ethod for writing servo patterns on recording disk. | |
DE60220577D1 (de) | Aufzeichnungs-/Wiedergabevorrichtung, Verfahren zum Bewegen von Daten und Verfahren zum Löschen von Daten | |
TWI317940B (en) | Information recording medium, recording/reproducing apparatus, and recording/reproducing method | |
SG116603A1 (en) | Method and apparatus for degaussing write head in a disk drive. | |
SG103922A1 (en) | Method and apparatus for performing self-servo writing in a disk drive | |
GB0318384D0 (en) | A storage controller and a method for recording diagnostic information | |
DE60322632D1 (de) | Verfahren zur Positionskontrolle eines Kopfes, Plattenapparat und Servospurschreibverfahren | |
SG109563A1 (en) | Method and apparatus for writing servo data with perpendicular magnetic recording in a disk drive | |
DE602004008832D1 (de) | Datenaufzeichnungs/-wiedergabegerät und Verfahren ein nadelförmiges Teil benutzend | |
SG131835A1 (en) | Method and apparatus for servo control using spiral servo information in a disk drive | |
SG107151A1 (en) | Method and apparatus for data reproducing in a disk drive | |
HK1086935A1 (en) | Information storage medium and method and apparatus for recording/reproducing data | |
PL1916654T3 (pl) | Nośnik pamięci informacji oraz sposób i urządzenie do zapisywania i/lub odtwarzania danych | |
SG103928A1 (en) | Method and apparatus for recovering read errors in a disk drive | |
SG122879A1 (en) | Method and apparatus for servo writing servo pattern examination in a disk drive | |
SG110137A1 (en) | Method and apparatus for determining track pitch for writing servo information in a disk drive | |
SG113542A1 (en) | Method and apparatus for head positioning control in a disk drive | |
GB0217616D0 (en) | Method and apparatus for recording/reproducing optical information | |
SG103906A1 (en) | Method and apparatus for head positioning control in a disk drive |