JPH0140423B2 - - Google Patents

Info

Publication number
JPH0140423B2
JPH0140423B2 JP58206064A JP20606483A JPH0140423B2 JP H0140423 B2 JPH0140423 B2 JP H0140423B2 JP 58206064 A JP58206064 A JP 58206064A JP 20606483 A JP20606483 A JP 20606483A JP H0140423 B2 JPH0140423 B2 JP H0140423B2
Authority
JP
Japan
Prior art keywords
error signal
position error
servo
signal
track
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
Application number
JP58206064A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59117757A (ja
Inventor
Kuraaku Suchiibunsu Harorudo
Rii Waakuman Maikeru
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of JPS59117757A publication Critical patent/JPS59117757A/ja
Publication of JPH0140423B2 publication Critical patent/JPH0140423B2/ja
Granted legal-status Critical Current

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
    • G11B5/58—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
    • G11B5/59633—Servo formatting
    • G11B5/59655—Sector, sample or burst servo format

Landscapes

  • Moving Of The Head To Find And Align With The Track (AREA)
  • Control Of Position Or Direction (AREA)
  • Moving Of Head For Track Selection And Changing (AREA)
JP58206064A 1982-12-20 1983-11-04 磁気デイスク・フアイル用サ−ボ装置 Granted JPS59117757A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/451,582 US4575776A (en) 1982-12-20 1982-12-20 Magnetic recording disk file servo control system including an actuator model for generating a simulated head position error signal
US451582 1982-12-20

Publications (2)

Publication Number Publication Date
JPS59117757A JPS59117757A (ja) 1984-07-07
JPH0140423B2 true JPH0140423B2 (OSRAM) 1989-08-29

Family

ID=23792810

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58206064A Granted JPS59117757A (ja) 1982-12-20 1983-11-04 磁気デイスク・フアイル用サ−ボ装置

Country Status (4)

Country Link
US (1) US4575776A (OSRAM)
EP (1) EP0113815B1 (OSRAM)
JP (1) JPS59117757A (OSRAM)
DE (1) DE3375852D1 (OSRAM)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6214382A (ja) * 1985-07-11 1987-01-22 Toshiba Corp トラツク飛び越し制御回路
US4691152A (en) * 1986-02-19 1987-09-01 International Business Machines Corporation Data disk drive velocity estimator
JPS62267964A (ja) * 1986-05-16 1987-11-20 Hitachi Ltd 磁気デイスク装置およびシステム
US4724370A (en) * 1986-10-14 1988-02-09 Konishiroku Photo Industries Co., Ltd. Servo system for a disk drive
JPH0199486A (ja) * 1987-10-12 1989-04-18 Pioneer Electron Corp ピックアップ駆動用リニアモータの制御装置
US4858041A (en) * 1987-10-20 1989-08-15 Mattel, Inc. Tracking servo control
US5065263A (en) * 1988-05-20 1991-11-12 Matsushita Electric Industrial Co., Ltd. Track following transducer position control system for a disk storage drive system
US5257251A (en) * 1990-05-25 1993-10-26 International Business Machines Corporation Single loop servo-positioning systems having means for changing the dynamic range of a position-error signal with speed of the relatively movable members
EP0507907B1 (en) * 1990-09-18 1999-01-13 Rodime PLC Digital servo control system for use in disk drives
JP2954378B2 (ja) * 1991-04-25 1999-09-27 三菱電機株式会社 電動機サーボ系の制御装置
US5307216A (en) * 1991-09-04 1994-04-26 International Business Machines Corporation Sector identification method and apparatus for a direct access storage device
US5255132A (en) * 1991-09-04 1993-10-19 International Business Machines Corporation Adaptable clock control methods and apparatus for a direct access disk drive system
US5576910A (en) * 1993-06-04 1996-11-19 Cirrus Logic, Inc. Burst comparison and sequential technique for determining servo control in a mass storage disk device
US5477103A (en) * 1993-06-04 1995-12-19 Cirrus Logic, Inc. Sequence, timing and synchronization technique for servo system controller of a computer disk mass storage device
US5384524A (en) * 1993-09-02 1995-01-24 Cirrus Logic, Inc. Voice coil motor control circuit and method for servo system control in a computer mass storage device
US5459624A (en) * 1993-10-26 1995-10-17 International Business Machines Corporation Activator control method and apparatus for positioning a transducer using a phase plane trajectory trough function for a direct access storage device with estimated velocity and position states
KR0162607B1 (ko) * 1995-12-20 1999-01-15 김광호 보이스코일모터 구동 제어회로
KR100194021B1 (ko) * 1996-04-24 1999-06-15 윤종용 하드 디스크 드라이브의 반복 추종 에러 제어방법
US5898286A (en) * 1997-01-13 1999-04-27 International Business Machines Corporation Digital servo control system for a data recording disk file with improved saturation modelling
CN1335992A (zh) 1999-02-22 2002-02-13 西加特技术有限责任公司 补偿可重复的偏心误差
US6522495B1 (en) 1999-04-16 2003-02-18 International Business Machines Corporation System, method and program for determining the magnetic center shift within a disk drive system
CN1357138A (zh) * 1999-04-21 2002-07-03 西加特技术有限责任公司 使用虚拟盘片驱动器的伺服处理器代码评估
US6560059B1 (en) 1999-05-07 2003-05-06 Seagate Technology Llc Method and apparatus for suppressing seek-induced vibration in a disc drive
GB2364433A (en) 1999-05-07 2002-01-23 Seagate Technology Llc Repeatable runout compensation using iterative learning control in a disc storage system
JP2003505818A (ja) 1999-07-23 2003-02-12 シーゲイト テクノロジー エルエルシー パラメータがスケジュールされている学習アルゴリズムを使用した再現可能なランナウト補正
US6768977B1 (en) * 1999-11-30 2004-07-27 Texas Instruments Incorporated Method and circuit for modeling a voice coil actuator of a mass data storage device
US6952320B1 (en) 1999-12-16 2005-10-04 Seagate Technology Llc Virtual tracks for repeatable runout compensation
SG100625A1 (en) * 2000-02-24 2003-12-26 Seagate Technology Llc Drive level actuator imbalance torque test
JP3803019B2 (ja) * 2000-08-21 2006-08-02 富士通株式会社 制御プログラム開発支援装置
KR20030064385A (ko) 2000-08-23 2003-07-31 시게이트 테크놀로지 엘엘씨 Ｐｅｓ 선형성에 기초하여 헤드를 제어하도록 트랙 스캔데이터를 사용하는 방법 및 장치
US7349174B2 (en) * 2001-11-15 2008-03-25 Seagate Technology Llc Soft sensor for operating shock in a disc drive
US7319570B2 (en) * 2005-09-19 2008-01-15 Seagate Technology Llc Random vibration and shock compensator using a disturbance observer
US7549407B2 (en) 2007-03-28 2009-06-23 Gm Global Technology Operations, Inc. Method and system for controlling a valve device
US8702073B2 (en) * 2007-05-17 2014-04-22 Seagate Technology Llc Shock absorber capable of damping vibration

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3881184A (en) * 1974-05-28 1975-04-29 Ibm Adaptive digital servo system
GB1503971A (en) * 1975-05-15 1978-03-15 Ibm Positioning system for data storage apparatus
US4048660A (en) * 1975-12-23 1977-09-13 International Business Machines Corporation Record track following and seeking
US4133011A (en) * 1977-12-23 1979-01-02 International Business Machines Corporation Sampled data positioning system employing a model of the physical system for time optimal control
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
GB2039078B (en) * 1978-12-27 1982-11-24 Ibm Sampled data servo positioning system
FR2466078A1 (fr) * 1979-09-21 1981-03-27 Cii Honeywell Bull Procede pour deplacer un systeme mobile par rapport a un support d'informations et dispositif pour le mettre en oeuvre
US4477755A (en) * 1982-06-28 1984-10-16 Storage Technology Corporation Method of suppressing seek-excited vibration in a disk drive or similar servo system

Also Published As

Publication number Publication date
EP0113815A1 (en) 1984-07-25
JPS59117757A (ja) 1984-07-07
EP0113815B1 (en) 1988-03-02
DE3375852D1 (en) 1988-04-07
US4575776A (en) 1986-03-11

Similar Documents

Publication Publication Date Title
JPH0140423B2 (OSRAM)
US6614618B1 (en) Disk drive with feed-forward control path that receives a reference position signal to apply a feed-forward command effort at a rate greater than a servo sampling rate
US4133011A (en) Sampled data positioning system employing a model of the physical system for time optimal control
US5917672A (en) Disk file head positioning servo system incorporating adaptive saturated seek and head offset compensation
US5381282A (en) Inter-sample switching of servo control in direct access storage devices
ES464537A1 (es) Aparato mejorado de almacenamiento de datos.
JP2616746B2 (ja) 磁気ディスク装置
US4924160A (en) Staggered seeking method for disk drive sector servo
JPH0845189A (ja) ディスク装置及びディスク媒体のフォーマット作成方法
US4377827A (en) Servo positioning control system for a data storage apparatus
KR100618885B1 (ko) 저주파 외란 보상 제어 장치와 이를 이용한 디스크 드라이브
JPH0973618A (ja) ディスク記録再生装置のヘッド位置決め制御システム及びそのシステムに適用する速度制御方法
KR100630721B1 (ko) 하드디스크 드라이브의 트랙 탐색 제어 방법, 트랙 탐색제어 장치 그리고 이에 적합한 기록 매체
KR20020068745A (ko) 하드 디스크 드라이브의 탐색 서보 장치 및 방법
US6449117B1 (en) Reducing acoustic noise using a current profile during initial stages of a disc drive seek
US4556921A (en) Method and apparatus to improve the positioning accuracy of a tracking arm
KR100518552B1 (ko) 디스크 드라이브의 트랙 탐색 서보 제어 방법 및 장치
US6785087B2 (en) Signal reproducing method and storage apparatus
KR20050054556A (ko) 시크 서보에서의 토크 변화 보상 방법 및 장치
JP2620812B2 (ja) 磁気ディスク装置および磁気ヘッド位置決め方法
JPH0224880A (ja) 磁気デイスク装置
Yamada et al. Sector servo system for high speed seeking and high track density
JPS63201963A (ja) トラツク追従制御方式
JPH0330157A (ja) 磁気デイスク装置の位置制御装置
JPS6238572A (ja) 記録情報再生ヘツドの位置決め制御装置