JP2007293980A - 磁気ディスク装置およびロード／アンロード方法 - Google Patents

磁気ディスク装置およびロード／アンロード方法 Download PDF

Info

Publication number
JP2007293980A
JP2007293980A JP2006119351A JP2006119351A JP2007293980A JP 2007293980 A JP2007293980 A JP 2007293980A JP 2006119351 A JP2006119351 A JP 2006119351A JP 2006119351 A JP2006119351 A JP 2006119351A JP 2007293980 A JP2007293980 A JP 2007293980A
Authority
JP
Japan
Prior art keywords
voltage value
magnetic disk
set voltage
vcm
transition
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.)
Pending
Application number
JP2006119351A
Other languages
English (en)
Japanese (ja)
Other versions
JP2007293980A5 (enExample
Inventor
Isao Yoneda
勲 米田
Hiroshi Uchida
博 内田
Kazuyuki Ishibashi
和幸 石橋
Takeshi Chawandani
健 茶碗谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HGST Netherlands BV
HGST Inc
Original Assignee
Hitachi Global Storage Technologies Netherlands BV
Hitachi Global Storage Technologies Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Global Storage Technologies Netherlands BV, Hitachi Global Storage Technologies Inc filed Critical Hitachi Global Storage Technologies Netherlands BV
Priority to JP2006119351A priority Critical patent/JP2007293980A/ja
Priority to CN2007101012078A priority patent/CN101064169B/zh
Priority to US11/789,770 priority patent/US7558017B2/en
Publication of JP2007293980A publication Critical patent/JP2007293980A/ja
Publication of JP2007293980A5 publication Critical patent/JP2007293980A5/ja
Pending legal-status Critical Current

Links

Images

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
    • G11B5/5526—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
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/12—Raising and lowering; Back-spacing or forward-spacing along track; Returning to starting position otherwise than during transducing operation
JP2006119351A 2006-04-24 2006-04-24 磁気ディスク装置およびロード／アンロード方法 Pending JP2007293980A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2006119351A JP2007293980A (ja) 2006-04-24 2006-04-24 磁気ディスク装置およびロード／アンロード方法
CN2007101012078A CN101064169B (zh) 2006-04-24 2007-04-24 磁盘驱动器和加载/卸载方法
US11/789,770 US7558017B2 (en) 2006-04-24 2007-04-24 Magnetic disk drive and a loading/unloading method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006119351A JP2007293980A (ja) 2006-04-24 2006-04-24 磁気ディスク装置およびロード／アンロード方法

Publications (2)

Publication Number Publication Date
JP2007293980A true JP2007293980A (ja) 2007-11-08
JP2007293980A5 JP2007293980A5 (enExample) 2009-02-12

Family

ID=38660944

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006119351A Pending JP2007293980A (ja) 2006-04-24 2006-04-24 磁気ディスク装置およびロード／アンロード方法

Country Status (3)

Country Link
US (1) US7558017B2 (enExample)
JP (1) JP2007293980A (enExample)
CN (1) CN101064169B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8149533B2 (en) 2009-07-24 2012-04-03 Kabushiki Kaisha Toshiba Load/unload control method and apparatus for a magnetic disk drive

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7559017B2 (en) 2006-12-22 2009-07-07 Google Inc. Annotation framework for video
GB201006394D0 (en) * 2010-04-16 2010-06-02 Dyson Technology Ltd Controller for a brushless motor
JP2019160357A (ja) * 2018-03-08 2019-09-19 株式会社東芝 磁気ディスク装置
US10418055B1 (en) * 2018-04-26 2019-09-17 Seagate Technology Llc Dual-stage head suspension assembly having additional microactuator pair
CN113162512B (zh) * 2021-02-23 2022-09-23 歌尔股份有限公司 音圈电机及其控制方法和控制装置
US12334119B2 (en) * 2023-06-19 2025-06-17 Stmicroelectronics International N.V. Method of operating hard disk drives, corresponding control circuit, hard disk drive and processing device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001155455A (ja) * 1999-11-29 2001-06-08 Fujitsu Ltd アクチュエータの制御方法及び記憶装置
JP2002093080A (ja) * 2000-09-18 2002-03-29 Hitachi Ltd 磁気ディスク装置ならびにボイスコイルモータ駆動回路
JP2002319257A (ja) * 2001-04-23 2002-10-31 Fujitsu Ltd ロード／アンロード動作制御方法及び記憶装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6148240A (en) * 1998-03-06 2000-11-14 Quantum Corporation Method and apparatus for performing an open-loop current shaping for seeking acoustics reduction in a disk drive
JP2000021103A (ja) 1998-06-30 2000-01-21 Toshiba Corp 磁気ディスク装置のシーク制御方法
JP3549744B2 (ja) * 1998-09-21 2004-08-04 富士通株式会社 情報記憶装置及びその制御方法
US6441988B2 (en) * 1998-10-07 2002-08-27 Samsung Electronics Co., Ltd. Method and apparatus for reducing acoustic noise in a hard disk drive
JP3688522B2 (ja) 1999-07-30 2005-08-31 株式会社日立グローバルストレージテクノロジーズ 磁気ディスク装置の制御方法
US6801384B2 (en) * 2000-09-14 2004-10-05 Samsung Electronics Co., Ltd. Voltage-constrained sinusoidal seek servo in hard disk drives
JP2005174511A (ja) * 2003-12-15 2005-06-30 Toshiba Corp ディスク記憶装置及びヘッドアンロード制御方法
US20060077588A1 (en) * 2004-10-12 2006-04-13 Teng-Yuan Shih Generalized sinusoidal trajectory for seek servomechanism of hard drives
US7180692B1 (en) * 2005-12-27 2007-02-20 Hitachi Global Storage Technologies Netherlands B.V. System and method for calibrating and controlling a fly-height actuator in a magnetic recording disk drive

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001155455A (ja) * 1999-11-29 2001-06-08 Fujitsu Ltd アクチュエータの制御方法及び記憶装置
JP2002093080A (ja) * 2000-09-18 2002-03-29 Hitachi Ltd 磁気ディスク装置ならびにボイスコイルモータ駆動回路
JP2002319257A (ja) * 2001-04-23 2002-10-31 Fujitsu Ltd ロード／アンロード動作制御方法及び記憶装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8149533B2 (en) 2009-07-24 2012-04-03 Kabushiki Kaisha Toshiba Load/unload control method and apparatus for a magnetic disk drive

Also Published As

Publication number Publication date
CN101064169A (zh) 2007-10-31
CN101064169B (zh) 2010-06-23
US7558017B2 (en) 2009-07-07
US20070258163A1 (en) 2007-11-08

Similar Documents

Publication Publication Date Title
US6952318B1 (en) Scaling linear vibration sensor data in disk drive
US8184389B2 (en) Sensor resonant frequency identification and filter tuning
US7345841B2 (en) Disk drive using a disturbance sensor for disturbance frequency-identification and suppression
US20070291401A1 (en) Contact detection using calibrated seeks
US8094405B1 (en) Repetitive error correction method for disk-drive servo control systems
US20040257693A1 (en) Disk drive disturbance rejection using accelerometer and/or back-EMF measurements
JP5080411B2 (ja) ディスク・ドライブ及びヘッド・スライダ上の素子のコモン電位調整方法
US7265931B2 (en) Apparatus to reject disk drive disturbance
JP2002543544A (ja) 圧電マイクロアクチュエータの振動制御
US7558017B2 (en) Magnetic disk drive and a loading/unloading method
JP2002542559A (ja) サーボ機構の制御励起装置と方法
CN104952473A (zh) 具有振动管理机制的电子系统及其操作方法
US20040246833A1 (en) Disk drive system model for determining a threshold to perform disturbance rejection
JP2008123651A (ja) ディスク・ドライブ装置及びそのキャリブレーション方法
US7027253B1 (en) Microactuator servo control during self writing of servo data
US8154238B2 (en) Accurate and versatile back EMF sensor
US7088546B2 (en) Method to reject disk drive disturbance
US7468859B2 (en) Voice coil motor effective resistance determination
US7099100B2 (en) Apparatus and method for controlling head loading in disk drive
JP3688522B2 (ja) 磁気ディスク装置の制御方法
US9177583B2 (en) Hard disk drive and method for controlling flying height of magnetic head thereof
JP4279272B2 (ja) ２段アクチュエータ制御装置
US12499906B1 (en) Magnetic disk drive and control method of the same
US20250384897A1 (en) Magnetic disk drive and control method of the same
JP4792130B1 (ja) 磁気ディスク装置、逆起電圧の推定方法及びヘッドの速度制御方法

Legal Events

Date Code Title Description
A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20081217

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20081217

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110322

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110412

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20110920