KR970076745A - How to Unlatch Actuators on Hard Disk Drives - Google Patents

How to Unlatch Actuators on Hard Disk Drives Download PDF

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Publication number
KR970076745A
KR970076745A KR1019960018344A KR19960018344A KR970076745A KR 970076745 A KR970076745 A KR 970076745A KR 1019960018344 A KR1019960018344 A KR 1019960018344A KR 19960018344 A KR19960018344 A KR 19960018344A KR 970076745 A KR970076745 A KR 970076745A
Authority
KR
South Korea
Prior art keywords
actuator
hard disk
unlatching
head
unlatch
Prior art date
Application number
KR1019960018344A
Other languages
Korean (ko)
Other versions
KR100403044B1 (en
Inventor
김재형
Original Assignee
김광호
삼성전자 주식회사
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 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019960018344A priority Critical patent/KR100403044B1/en
Publication of KR970076745A publication Critical patent/KR970076745A/en
Application granted granted Critical
Publication of KR100403044B1 publication Critical patent/KR100403044B1/en

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Classifications

    • 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
    • G11B21/16—Supporting the heads; Supporting the sockets for plug-in heads
    • G11B21/22—Supporting the heads; Supporting the sockets for plug-in heads while the head is out of operative position
    • 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
    • G11B2220/2516—Hard 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

Landscapes

  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Moving Of Heads (AREA)

Abstract

1. 청구범위에 기재된 발명이 속하는 기술분야1. TECHNICAL FIELD OF THE INVENTION

하드디스크 드라이브의 헤드언래치 방법에 있어서, 특히, FPC케이블의 장력을 이용한 액츄에이터의 언래칭 방법에 관한 것이다.The head unlatching method of a hard disk drive, in particular, relates to a method of unlatching an actuator using tension of an FPC cable.

2. 발명이 해결하려는 기술적 과제2. The technical problem to be solved by the invention

종래의 방법으로 언래칭 동작하여 헤드가 디스크상의 데이타영역에서 SAM을 검출하지 못하고 ESAM(Error SAM)을 발생할 시 헤드가 파킹존(park zone)에 있는 것으로 인지하여 계속해서 전류를 인가 시키게 된다. 따라서, 이때, 디스크의 outer crash 스탑을 칠 때 헤드 또는, 디스크가 파손되었던 문제점을 해결한다.When the head does not detect the SAM in the data area on the disk and generates an ESAM (Error SAM) by the conventional method, the head is recognized as being in the parking zone, and the current is continuously applied. Therefore, at this time, the head or the disk is broken when hitting the outer crash stop of the disk solves the problem.

3. 발명의 해결방법의 요지3. Summary of Solution to Invention

액츄에이터를 언래칭시키기 위해 발생하는 힘과 반대로 작용하는 FPC케이블의 장력의 평형점을 이용한 액츄에이터의 언레칭 방법을 제공한다.The present invention provides a method for unlatching an actuator using an equilibrium point of tension of an FPC cable that acts opposite to a force generated to unlatching the actuator.

4. 발명의 중요한 용도4. Important uses of the invention

하드디스크 드라이브의 액츄에이터 언래칭 방법.How to Unlatch Actuators on Hard Disk Drives.

Description

하드디스크 드라이브의 액츄레이터 언래칭 방법How to Unlatch Actuators on Hard Disk Drives

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 실시예를 설명하기 위한 일반적인 하드디스크 드라이브의 블럭구성도.1 is a block diagram of a general hard disk drive for explaining an embodiment of the present invention.

Claims (2)

하드디스크 드라이브의 액츄에이터 언래칭 방법에 있어서, 상기 하드디스크 드라이브의 액츄에이터를 언래칭시키기 위해 최초에 VCM에 소정의 전류를 가해주는 과정과, 상기 액츄에이터가 언래칭 되었을 시 인가된 전류를 차단하고 초기에 가해준 힘과 반대로 작용하는 FPC장력의 평형점의 위치까지 헤드를 이동시켜 ESAM유무를 검출하는 과정과, 상기 ESAM이 발생되지 않을 시 그레이코드를 리드하여 그 오차가 허용범위이내 일시 정상적인 언래칭동작으로 인지하여 다음동작을 진행하는 과정으로 이루어짐을 특징으로 하는 하드디스크 드라이브의 액츄에이터 언래칭 방법.In a method of unlatching an actuator of a hard disk drive, a process of initially applying a predetermined current to the VCM to unlatch the actuator of the hard disk drive, and interrupting an applied current when the actuator is unlatched, The process of detecting the presence of ESAM by moving the head to the position of the equilibrium point of the FPC tension that acts opposite to the applied force, and when the ESAM does not occur, the gray code is read and the error is within the allowable range. Actuator unlatching method of a hard disk drive, characterized in that the process of proceeding to the next operation. 제1항에 있어서, 상기 ESAM이 발생될 시 액츄에이터를 래치시켜 소정의 횟수만큼 재시도하는 과정을 더 가짐을 특징으로 하는 하드디스크 드라이브의 액츄에이터 언래칭 방법.The method of claim 1, further comprising latching the actuator and retrying the predetermined number of times when the ESAM is generated. ※ 참고사항 : 최초출원 내용에 의하여 공개되는 것임.※ Note: This is to be disclosed by the original application.
KR1019960018344A 1996-05-28 1996-05-28 Method for unlatching actuator of hard disk drive KR100403044B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960018344A KR100403044B1 (en) 1996-05-28 1996-05-28 Method for unlatching actuator of hard disk drive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960018344A KR100403044B1 (en) 1996-05-28 1996-05-28 Method for unlatching actuator of hard disk drive

Publications (2)

Publication Number Publication Date
KR970076745A true KR970076745A (en) 1997-12-12
KR100403044B1 KR100403044B1 (en) 2004-01-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960018344A KR100403044B1 (en) 1996-05-28 1996-05-28 Method for unlatching actuator of hard disk drive

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KR (1) KR100403044B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100452002B1 (en) * 2000-05-31 2004-10-08 히다치 글로벌 스토리지 테크놀로지스 네덜란드 비.브이. Creating an initial set of tracks in a self-servowriting system using a compliant crashstop to control head movement
KR100466916B1 (en) * 2000-07-07 2005-01-24 히다치 글로벌 스토리지 테크놀로지스 네덜란드 비.브이. Rotary memory device and method for controlling the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100688556B1 (en) 2005-07-12 2007-03-02 삼성전자주식회사 Write controlling method of hard disk drive, and hard disk drive and recording medium therefor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02193372A (en) * 1989-01-20 1990-07-31 Tokico Ltd Magnetic disk device
JP2762801B2 (en) * 1991-11-14 1998-06-04 松下電器産業株式会社 Actuator for magnetic disk drive

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100452002B1 (en) * 2000-05-31 2004-10-08 히다치 글로벌 스토리지 테크놀로지스 네덜란드 비.브이. Creating an initial set of tracks in a self-servowriting system using a compliant crashstop to control head movement
KR100466916B1 (en) * 2000-07-07 2005-01-24 히다치 글로벌 스토리지 테크놀로지스 네덜란드 비.브이. Rotary memory device and method for controlling the same

Also Published As

Publication number Publication date
KR100403044B1 (en) 2004-01-31

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