DE60206821D1 - Kopfpositionierung in einem Plattenspeichergerät - Google Patents
Kopfpositionierung in einem PlattenspeichergerätInfo
- Publication number
- DE60206821D1 DE60206821D1 DE60206821T DE60206821T DE60206821D1 DE 60206821 D1 DE60206821 D1 DE 60206821D1 DE 60206821 T DE60206821 T DE 60206821T DE 60206821 T DE60206821 T DE 60206821T DE 60206821 D1 DE60206821 D1 DE 60206821D1
- Authority
- DE
- Germany
- Prior art keywords
- storage device
- disk storage
- head positioning
- positioning
- head
- 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 - Lifetime
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
- G11B5/54—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
- G11B5/5582—Track change, selection or acquisition by displacement of the head across disk tracks system adaptation for working during or after external perturbation, e.g. in the presence of a mechanical oscillation caused by a shock
-
- 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
-
- 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
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001050896 | 2001-02-26 | ||
JP2001050896A JP2002251851A (ja) | 2001-02-26 | 2001-02-26 | ディスク装置 |
JP2001075519 | 2001-03-16 | ||
JP2001075519 | 2001-03-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60206821D1 true DE60206821D1 (de) | 2005-12-01 |
DE60206821T2 DE60206821T2 (de) | 2006-07-27 |
Family
ID=26610121
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60206821T Expired - Lifetime DE60206821T2 (de) | 2001-02-26 | 2002-02-25 | Kopfpositionierung in einem Plattenspeichergerät |
DE60220105T Expired - Fee Related DE60220105T2 (de) | 2001-02-26 | 2002-02-25 | Plattenspeichergerät |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60220105T Expired - Fee Related DE60220105T2 (de) | 2001-02-26 | 2002-02-25 | Plattenspeichergerät |
Country Status (4)
Country | Link |
---|---|
US (1) | US7177106B2 (de) |
EP (2) | EP1237152B1 (de) |
CN (1) | CN1242406C (de) |
DE (2) | DE60206821T2 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1406246A3 (de) * | 2002-09-27 | 2007-11-21 | Matsushita Electric Industrial Co., Ltd. | Plattenlaufwerk und Plattenlaufwerksteuerverfahren |
CN1499512A (zh) * | 2002-10-28 | 2004-05-26 | ���µ�����ҵ��ʽ���� | 头定位控制方法和使用该头定位控制方法的盘装置 |
EP1482503A3 (de) * | 2003-05-30 | 2006-04-12 | Matsushita Electric Industrial Co., Ltd. | Plattengerät und Verfahren zur Kopfpositionierung |
JP2005135530A (ja) * | 2003-10-30 | 2005-05-26 | Toshiba Corp | ヘッド位置決め制御システム、ディスク記憶装置及びサーボ書き込み方法 |
US20050152057A1 (en) * | 2004-01-13 | 2005-07-14 | Thorsten Schmidt | Methods for tighter thresholds in rotatable storage media |
KR100594250B1 (ko) * | 2004-02-16 | 2006-06-30 | 삼성전자주식회사 | 인접 트랙 지움에 대비한 데이터 기록 방법 및 이제 적합한 프로그램이 기록된 기록 매체 |
JP2006012353A (ja) * | 2004-06-29 | 2006-01-12 | Hitachi Global Storage Technologies Netherlands Bv | ディスク装置及びその製造方法 |
US8922937B1 (en) | 2012-04-19 | 2014-12-30 | Western Digital Technologies, Inc. | Disk drive evaluating multiple vibration sensor outputs to enable write-protection |
US8947819B1 (en) | 2012-08-28 | 2015-02-03 | Western Digital Technologies, Inc. | Disk drive implementing hysteresis for primary shock detector based on a more sensitive secondary shock detector |
US8830617B1 (en) * | 2013-05-30 | 2014-09-09 | Western Digital Technologies, Inc. | Disk drive adjusting state estimator to compensate for unreliable servo data |
CN107643877B (zh) * | 2016-07-22 | 2020-08-11 | 中国电信股份有限公司 | 磁盘故障检测方法以及装置 |
JP2018195364A (ja) * | 2017-05-18 | 2018-12-06 | 株式会社東芝 | 磁気ディスク装置および磁気ディスク装置のオントラック判定回数設定方法 |
JP2020149743A (ja) * | 2019-03-13 | 2020-09-17 | 株式会社東芝 | 磁気ディスク装置 |
Family Cites Families (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4246536A (en) * | 1978-09-29 | 1981-01-20 | International Business Machines Corporation | Electronic velocity measurement device |
US4679103A (en) * | 1986-04-29 | 1987-07-07 | International Business Machines Corporation | Digital servo control system for a data recording disk file |
US5285431A (en) * | 1987-12-02 | 1994-02-08 | Mitsubishi Denki Kabushiki Kaisha | Information storage device with head position detection outside a user utilizable region and an optical disk drive device having target velocity-controlled head actuation |
JPS63286915A (ja) | 1987-05-20 | 1988-11-24 | Hitachi Ltd | 磁気ディスク装置の位置決め制御装置 |
US5257255A (en) * | 1988-03-30 | 1993-10-26 | Canon Denshi Kabushiki Kaisha | Recording and/or reproducing apparatus with sensor for detecting head speed or acceleration |
JPH0256783A (ja) | 1988-08-22 | 1990-02-26 | Nec Corp | 磁気ヘッドの位置決め回路の速度制御回路 |
US5384676A (en) | 1991-04-19 | 1995-01-24 | Mitsubishi Denki Kabushiki Kaisha | Magnetic head position controller in a magnetic recording and reproducing apparatus |
JP2996772B2 (ja) | 1991-07-04 | 2000-01-11 | シチズン時計株式会社 | 磁気ディスクアセンブリ装置 |
JPH0562385A (ja) | 1991-08-30 | 1993-03-12 | Nec Corp | 磁気デイスク装置の磁気ヘツド位置決め方法およびその装置 |
EP0571076B1 (de) * | 1992-04-10 | 1996-01-17 | Matsushita Electric Industrial Co., Ltd. | Bürstenloser Gleichstrommotor |
US5402400A (en) * | 1992-09-04 | 1995-03-28 | Hitachi, Ltd. | Method and apparatus for eliminating external disturbances in a disk drive device |
JPH06103592A (ja) * | 1992-09-22 | 1994-04-15 | Ricoh Co Ltd | ディスク装置 |
US5467004A (en) * | 1992-11-24 | 1995-11-14 | Matsushita Electric Industrial Co., Ltd. | Motor speed control apparatus for keeping the speed of the motor fixed in the presence of a disturbance torque |
JPH07298667A (ja) * | 1994-04-28 | 1995-11-10 | Matsushita Electric Ind Co Ltd | モータ制御装置 |
US5654840A (en) * | 1994-06-30 | 1997-08-05 | Western Digital Corporation | Hard disk drive which uses the back EMF of the actuator to detect shocks |
JP3203989B2 (ja) * | 1994-10-25 | 2001-09-04 | 松下電器産業株式会社 | モータの速度制御装置 |
US5773938A (en) * | 1995-07-04 | 1998-06-30 | Samsung Electronics Co., Ltd. | Apparatus for controlling speed of a rotary motor |
JPH09231701A (ja) | 1996-02-21 | 1997-09-05 | Hitachi Ltd | ヘッド位置決め制御方法 |
JP3321354B2 (ja) * | 1996-03-28 | 2002-09-03 | 株式会社日立製作所 | 位置決め方法および位置決め装置ならびに回転型記憶装置 |
KR100260411B1 (ko) * | 1996-04-30 | 2000-07-01 | 윤종용 | 하드디스크 드라이브에 있어서 바이어스테이블 최소화를 위한 서보제어 장치 및 방법 |
KR100267364B1 (ko) * | 1996-04-30 | 2000-10-16 | 윤종용 | 전류콘트롤 에러를 줄이기 위한 적응피이드 포워드 장치 |
US5844743A (en) * | 1996-12-20 | 1998-12-01 | Seagate Technology, Inc. | Velocity sensing using actuator coil back-emf voltage |
US6196047B1 (en) * | 1997-09-22 | 2001-03-06 | Ugimag, Inc. | Method and system to measure torque per unit current as a function of angle in hard disk drive actuators |
US6178058B1 (en) * | 1998-12-11 | 2001-01-23 | Iomega Corporation | Off-track write protection method and system for induced mechanical disturbance on a disk drive |
JP2000322812A (ja) * | 1999-05-10 | 2000-11-24 | Matsushita Electric Ind Co Ltd | 磁気ディスク装置、その磁気ヘッドの復帰方法及びそのプログラムを記録した記録媒体 |
GB2366906B (en) | 1999-07-23 | 2003-06-25 | Seagate Technology Llc | Disturbance rejection for disc drives using adaptive accelerometer feedforward servo |
US6754025B1 (en) * | 2000-01-12 | 2004-06-22 | Maxtor Corporation | Disk drive spindle motor speed and timing control |
US6690536B1 (en) * | 2000-10-31 | 2004-02-10 | Western Digital Technologies, Inc. | Disk drive employing VCM demand current to calibrate VCM IR voltage for velocity control of an actuator arm |
US6714371B1 (en) * | 2001-08-31 | 2004-03-30 | Western Digital Technologies, Inc. | Method and disk drive for shock estimation and write termination control |
US6950274B2 (en) * | 2001-11-28 | 2005-09-27 | Matsushita Electric Industrial Co., Ltd. | Disk storage apparatus and disk storage apparatus control method |
US6735033B1 (en) * | 2001-12-10 | 2004-05-11 | Western Digital Technologies, Inc. | Method for recovering from shock events occurring to a disk drive during data write operations to improve data reliability |
CN1295704C (zh) * | 2002-06-26 | 2007-01-17 | 松下电器产业株式会社 | 头定位控制方法和使用该方法的盘装置 |
EP1482503A3 (de) * | 2003-05-30 | 2006-04-12 | Matsushita Electric Industrial Co., Ltd. | Plattengerät und Verfahren zur Kopfpositionierung |
-
2002
- 2002-02-22 US US10/079,850 patent/US7177106B2/en not_active Expired - Fee Related
- 2002-02-25 EP EP02004141A patent/EP1237152B1/de not_active Expired - Lifetime
- 2002-02-25 DE DE60206821T patent/DE60206821T2/de not_active Expired - Lifetime
- 2002-02-25 EP EP05013048A patent/EP1580731B1/de not_active Expired - Lifetime
- 2002-02-25 DE DE60220105T patent/DE60220105T2/de not_active Expired - Fee Related
- 2002-02-26 CN CNB021221847A patent/CN1242406C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE60220105D1 (de) | 2007-06-21 |
EP1237152A3 (de) | 2003-07-02 |
EP1580731A1 (de) | 2005-09-28 |
CN1242406C (zh) | 2006-02-15 |
EP1237152A2 (de) | 2002-09-04 |
US7177106B2 (en) | 2007-02-13 |
DE60220105T2 (de) | 2008-01-24 |
US20020149869A1 (en) | 2002-10-17 |
EP1580731B1 (de) | 2007-05-09 |
EP1237152B1 (de) | 2005-10-26 |
CN1389868A (zh) | 2003-01-08 |
DE60206821T2 (de) | 2006-07-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: PANASONIC CORP., KADOMA, OSAKA, JP |
|
8320 | Willingness to grant licences declared (paragraph 23) |