KR910014907A - 디스크드라이브 장치 - Google Patents

디스크드라이브 장치 Download PDF

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Publication number
KR910014907A
KR910014907A KR1019910001530A KR910001530A KR910014907A KR 910014907 A KR910014907 A KR 910014907A KR 1019910001530 A KR1019910001530 A KR 1019910001530A KR 910001530 A KR910001530 A KR 910001530A KR 910014907 A KR910014907 A KR 910014907A
Authority
KR
South Korea
Prior art keywords
disk drive
width
output signal
converter
head
Prior art date
Application number
KR1019910001530A
Other languages
English (en)
Inventor
아스아끼 스즈끼
Original Assignee
오가 노리오
소니 가부시기가이샤
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 오가 노리오, 소니 가부시기가이샤 filed Critical 오가 노리오
Publication of KR910014907A publication Critical patent/KR910014907A/ko

Links

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
    • 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
    • G11B5/5552—Track change, selection or acquisition by displacement of the head across disk tracks using fine positioning means for track acquisition separate from the coarse (e.g. track changing) positioning means
    • G11B5/5556—Track change, selection or acquisition by displacement of the head across disk tracks using fine positioning means for track acquisition separate from the coarse (e.g. track changing) positioning means with track following after a "seek"
    • 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
    • G11B21/08—Track changing or selecting during transducing operation
    • G11B21/081—Access to indexed tracks or parts of continuous track
    • G11B21/083—Access to indexed tracks or parts of continuous track on discs
    • G11B21/085—Access to indexed tracks or parts of continuous track on discs with track following of accessed part

Abstract

내용 없음

Description

디스크드라이브 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본원 발명의 일실시예를 도시한 블록도, 제2도는 자기디스크를 도시한 평면도, 제3도는 시크모드에 있어서 전류와 속도의 관계를 도시한 도면.

Claims (4)

  1. 디스크로부터 간헐적으로 얻어지는 서보정보를 이동하는 헤드의 위치제어용 디스크드라이브장치에 있어서, 헤드와 디스크상의 목표트랙간의 오차를 검출하는 수단과, D/A 콘버터의 출력신호의 폭을 제어하여 이 폭을 서보경보가 얻어진 간격보다 더 짧은 시간간격으로 설정하는 수단과, D/A 콘버터의 출력신호에 따라 헤드를 이동시키는 액튜에이터로 이루어지는 것을 특징으로 하는 디스크드라이브장치.
  2. 제1항에 있어서, 출력신호를 상기 액튜에이터에 대한 구동전류로 변환하는 변환회로를 더 포함하는 것을 특징으로 하는 디스크드라이브장치.
  3. 제1항 또는 제2항에 있어서, D/A 콘버터의 출력신호의 진폭은 상기 폭에 반비례하는 것을 특징으로 하는 디스크드라이브장치.
  4. 제1항 내지 제3항중 어느 한항에 있어서, 상기 폭은 재생된 서보정보의 기간에 대응하는 시간간격의 충격계수를 제어함으로써 작아지는 것을 특징으로 하는 디스크드라이브장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910001530A 1990-01-31 1991-01-30 디스크드라이브 장치 KR910014907A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020957A JPH03225679A (ja) 1990-01-31 1990-01-31 デイスクドライブ装置
JP90-20957 1990-01-31

Publications (1)

Publication Number Publication Date
KR910014907A true KR910014907A (ko) 1991-08-31

Family

ID=12041663

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910001530A KR910014907A (ko) 1990-01-31 1991-01-30 디스크드라이브 장치

Country Status (5)

Country Link
US (1) US5444582A (ko)
EP (1) EP0440440B1 (ko)
JP (1) JPH03225679A (ko)
KR (1) KR910014907A (ko)
DE (1) DE69127107T2 (ko)

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US5764017A (en) * 1996-04-16 1998-06-09 Iomega Corporation Servo loop compensation technique exhibiting improved bandwith
JP3177121B2 (ja) * 1995-06-01 2001-06-18 インターナショナル・ビジネス・マシーンズ・コーポレ−ション 位置制御装置及び方法
KR0162607B1 (ko) * 1995-12-20 1999-01-15 김광호 보이스코일모터 구동 제어회로
EP1011098B1 (en) 1996-04-15 2002-12-18 Matsushita Electric Industrial Co., Ltd. An optical disk and a recording/reproduction apparatus
US5808440A (en) * 1996-11-22 1998-09-15 Western Digital Corporation Hybrid communication method and apparatus for a three-phase brushless DC motor
US6088188A (en) * 1997-02-10 2000-07-11 International Business Machines Corporation System and method for determining when hard disk drive power amplifier is saturated
US5986426A (en) * 1997-08-05 1999-11-16 International Business Machines Corporation Adaptive pulse width modulated motor control
US6052076A (en) * 1998-10-14 2000-04-18 Western Digital Corporation Digital-to-analog converter having high resolution and high bandwidth
WO2000051125A1 (en) 1999-02-22 2000-08-31 Seagate Technology Llc Compensation for repeatable runout error
DE19983952T1 (de) 1999-05-07 2002-06-20 Seagate Technology Llc Kompensation wiederholbaren Auslaufens mit iterativer Lernsteuerung bei einem Plattenspeichersystem
GB2366660B (en) 1999-07-23 2004-01-07 Seagate Technology Llc Repeatable runout compensation using a learning algorithm with scheduled parameters
US6952320B1 (en) 1999-12-16 2005-10-04 Seagate Technology Llc Virtual tracks for repeatable runout compensation
US6281652B1 (en) 2000-03-24 2001-08-28 Western Digital Corporation Method of using two low-resolution DACS for converting high-resolution digital demands into analog output signals that monotonically drive an actuator motor in a disk drive
US6972539B1 (en) 2003-04-30 2005-12-06 Western Digital Technologies, Inc. Disk drive employing commutation phase modulation and current modulation of a spindle motor
US6970319B1 (en) 2003-05-27 2005-11-29 Western Digital Technologies, Inc. Disk drive comprising a pulse width modulated demand limit circuit for enhancing power management during spin-down
US7319570B2 (en) 2005-09-19 2008-01-15 Seagate Technology Llc Random vibration and shock compensator using a disturbance observer

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Publication number Priority date Publication date Assignee Title
US3881184A (en) * 1974-05-28 1975-04-29 Ibm Adaptive digital servo system
DE2759066A1 (de) * 1977-12-30 1979-07-12 Ibm Deutschland Einrichtung fuer die regelung der magnetkopfposition waehrend der spurauswahl und der spurfolge des magnetkopfes eines magnetplattenspeichers
US4188646A (en) * 1978-05-30 1980-02-12 Sperry Rand Corporation Sectorized data path following servo system
US4381526A (en) * 1980-11-10 1983-04-26 Memorex Corporation Velocity control system for a data storage apparatus
US4590527A (en) * 1983-11-14 1986-05-20 Burroughs Corporation Positioning servomechanisms
JPS60127576A (ja) * 1983-12-15 1985-07-08 Mitsubishi Electric Corp 磁気デイスク装置
JPS6323279A (ja) * 1986-07-16 1988-01-30 Fuji Electric Co Ltd デイスク記憶装置のヘツド位置制御装置
US4974109A (en) * 1986-08-27 1990-11-27 Sony Corporation Hard disk drive employing a reference track to compensate for tracking error
JPH0814950B2 (ja) * 1987-09-14 1996-02-14 株式会社日立製作所 磁気ディスク装置のヘッド位置決め方式
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DE4000663C1 (ko) * 1990-01-11 1991-06-13 Siemens Nixdorf Informationssysteme Ag, 4790 Paderborn, De

Also Published As

Publication number Publication date
EP0440440A2 (en) 1991-08-07
US5444582A (en) 1995-08-22
EP0440440A3 (en) 1992-11-04
DE69127107D1 (de) 1997-09-11
DE69127107T2 (de) 1998-01-29
EP0440440B1 (en) 1997-08-06
JPH03225679A (ja) 1991-10-04

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