JP2009020968A - 磁気ディスク装置、同装置を搭載した携帯型電子機器及び同電子機器の落下時における緊急ヘッドアンロード方法 - Google Patents

磁気ディスク装置、同装置を搭載した携帯型電子機器及び同電子機器の落下時における緊急ヘッドアンロード方法 Download PDF

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Publication number
JP2009020968A
JP2009020968A JP2007183619A JP2007183619A JP2009020968A JP 2009020968 A JP2009020968 A JP 2009020968A JP 2007183619 A JP2007183619 A JP 2007183619A JP 2007183619 A JP2007183619 A JP 2007183619A JP 2009020968 A JP2009020968 A JP 2009020968A
Authority
JP
Japan
Prior art keywords
head
magnetic disk
speed
electromotive force
electronic device
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
JP2007183619A
Other languages
English (en)
Japanese (ja)
Other versions
JP2009020968A5 (enExample
Inventor
Tatsuharu Kusumoto
辰春 楠本
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP2007183619A priority Critical patent/JP2009020968A/ja
Priority to US12/141,338 priority patent/US20090015961A1/en
Priority to CNA2008101249800A priority patent/CN101383156A/zh
Publication of JP2009020968A publication Critical patent/JP2009020968A/ja
Publication of JP2009020968A5 publication Critical patent/JP2009020968A5/ja
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
    • G11B19/041—Detection or prevention of read or write errors
    • G11B19/042—Detection or prevention of read or write errors due to external shock or vibration
    • 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
    • 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
JP2007183619A 2007-07-12 2007-07-12 磁気ディスク装置、同装置を搭載した携帯型電子機器及び同電子機器の落下時における緊急ヘッドアンロード方法 Pending JP2009020968A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2007183619A JP2009020968A (ja) 2007-07-12 2007-07-12 磁気ディスク装置、同装置を搭載した携帯型電子機器及び同電子機器の落下時における緊急ヘッドアンロード方法
US12/141,338 US20090015961A1 (en) 2007-07-12 2008-06-18 Disk drive installed in portable electronic device, and method of unloading a head when the electronic device falls
CNA2008101249800A CN101383156A (zh) 2007-07-12 2008-06-25 盘驱动器以及当电子装置跌落时卸载头的方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007183619A JP2009020968A (ja) 2007-07-12 2007-07-12 磁気ディスク装置、同装置を搭載した携帯型電子機器及び同電子機器の落下時における緊急ヘッドアンロード方法

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2009132063A Division JP2009193662A (ja) 2009-06-01 2009-06-01 磁気ディスク装置、同装置を搭載した携帯型電子機器及び同電子機器の落下時における緊急ヘッドアンロード方法

Publications (2)

Publication Number Publication Date
JP2009020968A true JP2009020968A (ja) 2009-01-29
JP2009020968A5 JP2009020968A5 (enExample) 2009-03-12

Family

ID=40252892

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007183619A Pending JP2009020968A (ja) 2007-07-12 2007-07-12 磁気ディスク装置、同装置を搭載した携帯型電子機器及び同電子機器の落下時における緊急ヘッドアンロード方法

Country Status (3)

Country Link
US (1) US20090015961A1 (enExample)
JP (1) JP2009020968A (enExample)
CN (1) CN101383156A (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110068188A (ko) * 2009-12-15 2011-06-22 삼성전자주식회사 데이터 저장 장치에서의 변환기 언로딩 방법과 이를 적용한 디스크 드라이브 및 저장매체
US8653773B2 (en) * 2012-02-02 2014-02-18 Lexmark Internatonal, Inc. Method for calibrating a drive motor for a toner metering device in an imaging apparatus
US20170024297A1 (en) * 2015-07-22 2017-01-26 Kabushiki Kaisha Toshiba Storage Device and Data Save Method
US9466330B1 (en) * 2015-11-12 2016-10-11 Kabushiki Kaisha Toshiba Correction value calculating method, manufacturing method of disk drive, and disk drive
JP2018055756A (ja) * 2016-09-30 2018-04-05 ルネサスエレクトロニクス株式会社 制御装置、磁気ディスク制御システム、およびディスク記憶装置を制御するための制御方法
KR101901049B1 (ko) * 2017-01-09 2018-09-20 엘지전자 주식회사 냉장고 및 그의 제어방법

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7355807B2 (en) * 2006-04-28 2008-04-08 Hewlett-Packard Development Company, L.P. Hard disk drive protection system and method
US6721119B1 (en) * 2000-08-16 2004-04-13 Texas Instruments Incorporated System and method for controlling an actuator motor during retract
US6859340B2 (en) * 2001-03-09 2005-02-22 Seagate Technology Llc Method and device for retracting an actuator
US7193804B1 (en) * 2001-07-20 2007-03-20 Maxtor Corporation Method and apparatus for controlling head velocity in a disk drive during ramp load/unload
JP2005346741A (ja) * 2004-05-31 2005-12-15 Toshiba Corp ディスク記憶装置及び同装置に適用される緊急ヘッド退避制御回路
US7525751B2 (en) * 2005-11-14 2009-04-28 Samsung Electronics Co., Ltd. Hard disk drive adapted to detect free-fall and perform emergency parking of read/write head prior to impact
KR100734293B1 (ko) * 2005-12-14 2007-07-02 삼성전자주식회사 하드디스크 드라이브의 보이스 코일 모터 구동 방법, 이에적합한 헤드 언로드 장치 및 기록 매체
US7636220B1 (en) * 2006-03-14 2009-12-22 Marvell International Ltd. Method of ramp stop detection for VCM velocity-controlled retract

Also Published As

Publication number Publication date
US20090015961A1 (en) 2009-01-15
CN101383156A (zh) 2009-03-11

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