DE19983942T1 - Verfahren und Vorrichtung zum Codieren von Kennzeichnungsinformation auf einer Magnetplatte - Google Patents
Verfahren und Vorrichtung zum Codieren von Kennzeichnungsinformation auf einer MagnetplatteInfo
- Publication number
- DE19983942T1 DE19983942T1 DE19983942T DE19983942T DE19983942T1 DE 19983942 T1 DE19983942 T1 DE 19983942T1 DE 19983942 T DE19983942 T DE 19983942T DE 19983942 T DE19983942 T DE 19983942T DE 19983942 T1 DE19983942 T1 DE 19983942T1
- Authority
- DE
- Germany
- Prior art keywords
- identification information
- magnetic disk
- coding identification
- coding
- disk
- 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- Withdrawn
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
- G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
- G11B5/743—Patterned record carriers, wherein the magnetic recording layer is patterned into magnetic isolated data islands, e.g. discrete tracks
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
- Y10T29/49025—Making disc drive
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
- Y10T29/49032—Fabricating head structure or component thereof
- Y10T29/49036—Fabricating head structure or component thereof including measuring or testing
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12639099P | 1999-03-26 | 1999-03-26 | |
US09/425,576 US6377413B1 (en) | 1999-03-26 | 1999-10-22 | Method and apparatus for encoding identification information on a magnetic disc |
PCT/US1999/031200 WO2000058955A1 (en) | 1999-03-26 | 1999-12-31 | Method and apparatus for encoding identification information on a magnetic disc |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19983942T1 true DE19983942T1 (de) | 2002-03-07 |
Family
ID=26824599
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19983942T Withdrawn DE19983942T1 (de) | 1999-03-26 | 1999-12-31 | Verfahren und Vorrichtung zum Codieren von Kennzeichnungsinformation auf einer Magnetplatte |
Country Status (8)
Country | Link |
---|---|
US (1) | US6377413B1 (de) |
JP (1) | JP2002540549A (de) |
KR (1) | KR100641459B1 (de) |
CN (1) | CN1222930C (de) |
DE (1) | DE19983942T1 (de) |
GB (1) | GB2363672B (de) |
HK (1) | HK1042982A1 (de) |
WO (1) | WO2000058955A1 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6466407B1 (en) * | 1996-08-07 | 2002-10-15 | Seagate Technology, Llc. | Method and apparatus for applying an information pattern to a disc head slider |
JP2002222520A (ja) * | 2001-01-24 | 2002-08-09 | Mitsubishi Chemicals Corp | 磁化パターン形成方法及び磁化パターン形成装置並びに磁気ディスク及び磁気記録装置 |
US20030123172A1 (en) * | 2001-11-30 | 2003-07-03 | Jun Zhu | System and method for efficient media certification during servowriting |
JP4144867B2 (ja) * | 2002-08-09 | 2008-09-03 | 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 |
US7275302B2 (en) * | 2003-12-09 | 2007-10-02 | Seagate Technology Llc | Method of forming a disc pack |
US7397621B2 (en) * | 2004-06-14 | 2008-07-08 | Kla-Tencor Technologies Corporation | Servo pattern characterization on magnetic disks |
US7064914B1 (en) | 2004-12-22 | 2006-06-20 | Seagate Technology Llc | Position error signal quality |
JP2006260713A (ja) * | 2005-03-18 | 2006-09-28 | Toshiba Corp | 記録媒体、記録再生装置及び記録再生方法 |
JP4305856B2 (ja) * | 2005-03-30 | 2009-07-29 | 富士通株式会社 | 熱アシスト磁気記録方法 |
US20060273785A1 (en) * | 2005-06-03 | 2006-12-07 | Lindblom Steven L | Magnetic field sensing device |
JP4489031B2 (ja) * | 2006-02-17 | 2010-06-23 | 東芝ストレージデバイス株式会社 | ディスク装置補正システム、情報管理装置、原盤作製装置および原盤作製方法 |
JP4533854B2 (ja) * | 2006-03-06 | 2010-09-01 | 株式会社東芝 | 磁気記録再生装置、磁気記録方法、及び磁気記録再生方法 |
JP4990817B2 (ja) * | 2008-02-29 | 2012-08-01 | 株式会社日立製作所 | パターン媒体を用いたハードディスク記録装置の製造方法 |
WO2011040879A1 (en) * | 2009-09-30 | 2011-04-07 | Agency For Science, Technology And Research | Apparatus and method for certifying a magnetic recording disk |
US8432633B2 (en) * | 2010-10-26 | 2013-04-30 | HGST Netherlands B.V. | System, method and apparatus for storage architecture for bit patterned media using both erase band and shingled magnetic recording |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57113402A (en) * | 1981-01-05 | 1982-07-14 | Ricoh Co Ltd | Method and device for vertical thermomagnetic recording |
DE3378800D1 (en) | 1982-05-10 | 1989-02-02 | Digital Equipment Corp | Continuous-plus-embedded servo data position control system for magnetic disk device |
US4833662A (en) * | 1985-05-02 | 1989-05-23 | Olympus Optical Co., Ltd. | Reproduction apparatus for a magneto-optical recording medium |
US4679103A (en) | 1986-04-29 | 1987-07-07 | International Business Machines Corporation | Digital servo control system for a data recording disk file |
JPS6443879A (en) | 1987-08-06 | 1989-02-16 | Ibm | Method and apparatus for control of positioning of head |
US5117408A (en) | 1989-09-29 | 1992-05-26 | Seagate Technology, Inc. | Correlation of sectored servo position information |
US5136439A (en) | 1989-09-29 | 1992-08-04 | Seagate Technology, Inc. | Sectored servo position demodulator system |
JPH0642208Y2 (ja) | 1989-11-15 | 1994-11-02 | 株式会社キャットアイ | センサマグネット取付装置 |
US5210672A (en) * | 1990-11-09 | 1993-05-11 | Insite Peripherals, Inc. | Magnetically indelible media type identification system |
DE4140671B4 (de) * | 1991-12-10 | 2005-06-02 | Deutsche Thomson-Brandt Gmbh | Meßplattensystem für Abtastgeräte |
US5341249A (en) | 1992-08-27 | 1994-08-23 | Quantum Corporation | Disk drive using PRML class IV sampling data detection with digital adaptive equalization |
US5637999A (en) * | 1994-05-19 | 1997-06-10 | Maxtor Corporation | Opamp based broad band phase shifter for use in detecting flaws in the media of disks for use in disk drives |
AU3365795A (en) * | 1994-08-15 | 1996-03-07 | Trace Mountain Products, Inc. | Method and apparatus for augmented missing pulse certification of a magnetic recording medium |
US5602692A (en) | 1994-10-07 | 1997-02-11 | International Business Machines Corporation | Sampled position error signal demodulation system for banded data disk drives |
US5576906A (en) | 1994-10-11 | 1996-11-19 | Quantum Corporation | Synchronous detection of concurrent servo bursts for fine head position in disk drive |
US5737519A (en) * | 1995-08-22 | 1998-04-07 | Seagate Technology, Inc. | System and method for early disc drive fault detection |
US5867341A (en) | 1996-01-30 | 1999-02-02 | Seagate Technology, Inc. | Disc drive system using multiple pairs of embedded servo bursts |
US5987562A (en) * | 1996-03-08 | 1999-11-16 | Texas Instruments Incorporated | Waveform sampler and method for sampling a signal from a read channel |
US5982721A (en) | 1996-03-29 | 1999-11-09 | Cirrus Logic, Inc. | Optical disc drive comprising switching gains for forcing phase states to follow a sliding line trajectory in a servo system |
US5825579A (en) | 1996-04-04 | 1998-10-20 | International Business Machines Corporation | Disk drive servo sensing gain normalization and linearization |
-
1999
- 1999-10-22 US US09/425,576 patent/US6377413B1/en not_active Expired - Lifetime
- 1999-12-31 WO PCT/US1999/031200 patent/WO2000058955A1/en active IP Right Grant
- 1999-12-31 GB GB0125092A patent/GB2363672B/en not_active Expired - Fee Related
- 1999-12-31 KR KR1020017012277A patent/KR100641459B1/ko not_active IP Right Cessation
- 1999-12-31 JP JP2000608374A patent/JP2002540549A/ja active Pending
- 1999-12-31 DE DE19983942T patent/DE19983942T1/de not_active Withdrawn
- 1999-12-31 CN CNB998166693A patent/CN1222930C/zh not_active Expired - Fee Related
-
2002
- 2002-06-27 HK HK02104774.2A patent/HK1042982A1/zh unknown
Also Published As
Publication number | Publication date |
---|---|
JP2002540549A (ja) | 2002-11-26 |
CN1222930C (zh) | 2005-10-12 |
GB2363672A (en) | 2002-01-02 |
US6377413B1 (en) | 2002-04-23 |
HK1042982A1 (zh) | 2002-08-30 |
KR20010113861A (ko) | 2001-12-28 |
GB2363672B (en) | 2003-07-02 |
KR100641459B1 (ko) | 2006-10-31 |
WO2000058955A1 (en) | 2000-10-05 |
CN1361914A (zh) | 2002-07-31 |
GB0125092D0 (en) | 2001-12-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |