DE69323583T2 - Magnetplatteneinheit - Google Patents
MagnetplatteneinheitInfo
- Publication number
- DE69323583T2 DE69323583T2 DE69323583T DE69323583T DE69323583T2 DE 69323583 T2 DE69323583 T2 DE 69323583T2 DE 69323583 T DE69323583 T DE 69323583T DE 69323583 T DE69323583 T DE 69323583T DE 69323583 T2 DE69323583 T2 DE 69323583T2
- Authority
- DE
- Germany
- Prior art keywords
- magnetic disk
- disk unit
- unit
- magnetic
- 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.)
- Expired - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
- C07D309/32—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
-
- 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
- G11B5/012—Recording on, or reproducing or erasing from, magnetic 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
- G11B5/48—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
- G11B5/54—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 into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
- G11B5/5526—Control therefor; circuits, track configurations or relative disposition of servo-information transducers and servo-information tracks for control thereof
-
- 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 |
---|---|---|---|
JP4285209A JPH06111502A (ja) | 1992-09-30 | 1992-09-30 | 磁気ディスク装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69323583D1 DE69323583D1 (de) | 1999-04-01 |
DE69323583T2 true DE69323583T2 (de) | 1999-09-23 |
Family
ID=17688520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69323583T Expired - Fee Related DE69323583T2 (de) | 1992-09-30 | 1993-09-30 | Magnetplatteneinheit |
Country Status (4)
Country | Link |
---|---|
US (1) | US5590009A (de) |
EP (1) | EP0590676B1 (de) |
JP (1) | JPH06111502A (de) |
DE (1) | DE69323583T2 (de) |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1151078A (zh) * | 1994-11-16 | 1997-06-04 | 株式会社日立制作所 | 磁盘装置 |
US5872676A (en) * | 1996-01-02 | 1999-02-16 | International Business Machines Corporation | Method and apparatus for positioning a dual element magnetoresistive head using thermal signals |
US5739972A (en) * | 1996-01-02 | 1998-04-14 | Ibm | Method and apparatus for positioning a magnetoresistive head using thermal response to servo information on the record medium |
US5828536A (en) * | 1996-01-24 | 1998-10-27 | Sony Corporation | Magnetic disk and magnetic disk device in which control data section of disk has structural relationship to slider and/or data section |
US6104579A (en) * | 1996-04-11 | 2000-08-15 | Sony Corporation | Magnetic disk head having data zone and control signal zones which generate different lifts when flown over by a head slider |
JPH10293975A (ja) * | 1997-04-21 | 1998-11-04 | Sony Corp | 磁気ディスク装置 |
JPH11161944A (ja) * | 1997-11-27 | 1999-06-18 | Sony Corp | 磁気ディスク及び磁気ディスク装置 |
US6420058B1 (en) * | 1999-02-19 | 2002-07-16 | Tdk Corporation | Magnetic recording medium |
WO2001043122A2 (en) | 1999-12-10 | 2001-06-14 | Seagate Technology Llc | Magnetic disc having physical servo patterns with a magnetic carrier, and method of making and using the same |
JP2001229516A (ja) * | 2000-02-10 | 2001-08-24 | Sony Corp | 記録再生装置及び記録再生方法 |
WO2002023538A2 (en) * | 2000-09-12 | 2002-03-21 | Seagate Technology Llc | Method and apparatus for minimizing slider fly heights over patterned media |
JP3861197B2 (ja) * | 2001-03-22 | 2006-12-20 | 株式会社東芝 | 記録媒体の製造方法 |
US7227717B1 (en) * | 2001-06-18 | 2007-06-05 | Seagate Technology Llc | Asymmetric disk surface properties in one head disk drives |
CN1224050C (zh) * | 2001-06-20 | 2005-10-19 | 松下电器产业株式会社 | 磁传输载体的清洁方法及假载体 |
US6961099B2 (en) * | 2001-10-16 | 2005-11-01 | Sony Corporation | Method and apparatus for automatically switching between analog and digital input signals |
KR100455391B1 (ko) * | 2002-07-18 | 2004-11-06 | 삼성전자주식회사 | 버스트 패턴을 이용하여 자기헤드의 자기기록폭을측정하는 방법 및 그 장치 |
SG135011A1 (en) | 2003-01-07 | 2007-09-28 | Tdk Corp | Magnetic head for recording/reproduction, magnetic recording medium, and recording/reproduction apparatus |
JP3905898B2 (ja) | 2004-06-25 | 2007-04-18 | Tdk株式会社 | 磁気記録再生装置 |
JP3796255B2 (ja) | 2004-07-12 | 2006-07-12 | Tdk株式会社 | 磁気記録再生装置 |
US7136252B2 (en) | 2004-07-14 | 2006-11-14 | Tdk Corporation | Magnetic recording and reproducing apparatus with recording layer having predetermined convex-concave pattern |
JP2006099932A (ja) * | 2004-09-03 | 2006-04-13 | Tdk Corp | 磁気記録媒体、磁気記録再生装置及び磁気記録媒体製造用スタンパ |
US7375932B2 (en) * | 2004-11-30 | 2008-05-20 | Hitachi Global Storage Technologies Netherlands B.V. | Disk drive read head for reading cross-track magnetizations |
US7394619B2 (en) * | 2004-11-30 | 2008-07-01 | Hitachi Global Storage Technologies Netherlands B.V. | Disk drive write head for writing cross-track magnetizations |
US7079344B2 (en) * | 2004-11-30 | 2006-07-18 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic recording disk drive with data written and read as cross-track magnetizations |
JP2006185545A (ja) * | 2004-12-28 | 2006-07-13 | Toshiba Corp | 磁気ディスクおよびこれを備えた磁気ディスク装置 |
CN100429697C (zh) | 2005-02-16 | 2008-10-29 | Tdk股份有限公司 | 磁记录介质、记录重放装置及压印模 |
US7548388B2 (en) | 2005-02-16 | 2009-06-16 | Tdk Corporation | Magnetic recording medium, recording/reproducing apparatus, and stamper |
JP4271666B2 (ja) * | 2005-03-16 | 2009-06-03 | Tdk株式会社 | 磁気記録再生装置及びその制御方法、磁気記録媒体、磁気記録媒体製造用スタンパ |
JP4163696B2 (ja) | 2005-03-18 | 2008-10-08 | 株式会社東芝 | ディスクドライブ及びデータライト方法 |
US7771852B2 (en) * | 2005-06-09 | 2010-08-10 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic recording disk with patterned nondata islands of alternating polarity |
US7236325B2 (en) * | 2005-06-09 | 2007-06-26 | Hitachi Global Storage Technologies Netherlands B.V. | Method for formatting a magnetic recording disk with patterned nondata islands of alternating polarity |
US7403353B2 (en) | 2005-07-11 | 2008-07-22 | Tdk Corporation | Magnetic recording and reproducing system with recording layer having predetermined convex-concave pattern |
JP4099180B2 (ja) * | 2005-07-11 | 2008-06-11 | Tdk株式会社 | 磁気記録再生装置 |
JP2007164958A (ja) * | 2005-11-21 | 2007-06-28 | Tdk Corp | 記録再生装置およびパラメータ測定方法 |
JP4163729B2 (ja) * | 2006-10-03 | 2008-10-08 | 株式会社東芝 | 磁気記録媒体、その製造方法、および磁気記録装置 |
US8947809B2 (en) * | 2008-09-19 | 2015-02-03 | Seagate Technology Llc | Encoding scheme for bit patterned media |
US7920354B2 (en) * | 2008-09-15 | 2011-04-05 | Seagate Technology Llc | Phase servo patterns for bit patterned media |
US8339722B1 (en) * | 2008-11-17 | 2012-12-25 | Marvell International Ltd. | Methods of demodulating a servo positon error signal on patterned media |
JP5259645B2 (ja) | 2010-04-14 | 2013-08-07 | 株式会社東芝 | 磁気記録媒体及びその製造方法 |
JP2012014758A (ja) * | 2010-06-29 | 2012-01-19 | Hitachi Ltd | 磁気記録媒体及びそれを備えた磁気ディスク装置 |
JP2012248254A (ja) * | 2011-05-30 | 2012-12-13 | Toshiba Corp | 磁気記録媒体、磁気記録装置 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59188106A (ja) * | 1983-04-08 | 1984-10-25 | Ricoh Co Ltd | 光磁気記録媒体 |
JPS60140993A (ja) * | 1983-12-27 | 1985-07-25 | Matsushita Electric Ind Co Ltd | 記録再生装置 |
US4737869A (en) * | 1985-03-20 | 1988-04-12 | Kabushiki Kaisha Toshiba | Magnetic disk having data area and index servo area and servo system for positioning read/write head on magnetic disk |
US4656538A (en) * | 1985-11-14 | 1987-04-07 | Xebec Development Partners, Ltd. | Disk drive control system |
FR2610753A1 (fr) * | 1987-02-11 | 1988-08-12 | Commissariat Energie Atomique | Substrat pour memoire a disque magnetique et procede de fabrication |
JPH01302532A (ja) * | 1988-05-30 | 1989-12-06 | Tonen Corp | 磁気ディスク用基体およびその製造方法 |
JPH0231323A (ja) * | 1988-07-20 | 1990-02-01 | Asahi Glass Co Ltd | 磁気記録用メモリーディスク |
JPH02148476A (ja) * | 1988-11-30 | 1990-06-07 | Toshiba Corp | サーボ式磁気ディスク装置 |
EP0378222B1 (de) * | 1989-01-11 | 1995-08-23 | Hitachi, Ltd. | Magnetischer Aufzeichnungsträger und Verfahren zum magnetischen Aufzeichnen und Wiedergeben von Daten |
JP2863190B2 (ja) * | 1989-03-24 | 1999-03-03 | ソニー株式会社 | 磁気ディスクの作製方法 |
JP2893752B2 (ja) * | 1989-09-29 | 1999-05-24 | ソニー株式会社 | ディスク状記録媒体 |
US5235478A (en) * | 1989-12-15 | 1993-08-10 | Sony Corporation | Disc drive apparatus with servo tracks offset from data tracks |
JP2616586B2 (ja) * | 1991-01-16 | 1997-06-04 | 松下電器産業株式会社 | 磁気ディスク及び磁気ディスク装置 |
DE9107255U1 (de) * | 1991-06-12 | 1991-08-08 | Siemens Ag, 8000 Muenchen, De |
-
1992
- 1992-09-30 JP JP4285209A patent/JPH06111502A/ja active Pending
-
1993
- 1993-09-30 EP EP93115849A patent/EP0590676B1/de not_active Expired - Lifetime
- 1993-09-30 DE DE69323583T patent/DE69323583T2/de not_active Expired - Fee Related
-
1995
- 1995-05-19 US US08/445,123 patent/US5590009A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0590676A3 (de) | 1994-04-13 |
DE69323583D1 (de) | 1999-04-01 |
EP0590676A2 (de) | 1994-04-06 |
EP0590676B1 (de) | 1999-02-24 |
US5590009A (en) | 1996-12-31 |
JPH06111502A (ja) | 1994-04-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |