ATE123170T1 - Automatisches servo-verstärkungs-kalibriersystem für einen plattenspeicher. - Google Patents

Automatisches servo-verstärkungs-kalibriersystem für einen plattenspeicher.

Info

Publication number
ATE123170T1
ATE123170T1 AT89117036T AT89117036T ATE123170T1 AT E123170 T1 ATE123170 T1 AT E123170T1 AT 89117036 T AT89117036 T AT 89117036T AT 89117036 T AT89117036 T AT 89117036T AT E123170 T1 ATE123170 T1 AT E123170T1
Authority
AT
Austria
Prior art keywords
bursts
signal
center pattern
calibration system
disk memory
Prior art date
Application number
AT89117036T
Other languages
English (en)
Inventor
Charles R Watt
Frederick K Groll
John A Scaramuzzo
Original Assignee
Digital Equipment 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 Digital Equipment Corp filed Critical Digital Equipment Corp
Application granted granted Critical
Publication of ATE123170T1 publication Critical patent/ATE123170T1/de

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48Disposition 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
    • G11B5/54Disposition 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
    • G11B5/55Track change, selection or acquisition by displacement of the head
    • G11B5/5521Track change, selection or acquisition by displacement of the head across disk tracks
    • G11B5/5526Control therefor; circuits, track configurations or relative disposition of servo-information transducers and servo-information tracks for control thereof
    • G11B5/553Details
    • G11B5/5534Initialisation, calibration, e.g. cylinder "set-up"

Landscapes

  • Moving Of The Head To Find And Align With The Track (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Control Of Electric Motors In General (AREA)
AT89117036T 1988-09-27 1989-09-14 Automatisches servo-verstärkungs-kalibriersystem für einen plattenspeicher. ATE123170T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/250,037 US4890172A (en) 1988-09-27 1988-09-27 Automatic servo gain calibration system for a disk drive

Publications (1)

Publication Number Publication Date
ATE123170T1 true ATE123170T1 (de) 1995-06-15

Family

ID=22946047

Family Applications (1)

Application Number Title Priority Date Filing Date
AT89117036T ATE123170T1 (de) 1988-09-27 1989-09-14 Automatisches servo-verstärkungs-kalibriersystem für einen plattenspeicher.

Country Status (6)

Country Link
US (1) US4890172A (de)
EP (1) EP0361222B1 (de)
JP (1) JP2875288B2 (de)
AT (1) ATE123170T1 (de)
CA (1) CA1318975C (de)
DE (1) DE68922810T2 (de)

Families Citing this family (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0449531A (ja) * 1990-06-19 1992-02-18 Matsushita Electric Ind Co Ltd 光ディスクサーボシステム
EP0507907B1 (de) * 1990-09-18 1999-01-13 Rodime PLC Digitale servosteuerung für ein plattenlaufwerk
US5341255A (en) * 1990-10-17 1994-08-23 Seagate Technology, Inc. Disc drive head positioning servo system with coherent adjacent track magnetic patterns
US5155422A (en) * 1991-03-28 1992-10-13 Digital Equipment Corporation Self-tuning adaptive bandwidth regulator
AU2304392A (en) * 1991-06-26 1993-01-25 Maxtor Corporation Method and apparatus for detecting data track misregistration
EP0613578B1 (de) * 1991-11-22 1997-07-16 Micropolis Corporation System zum thermischen kalibrieren von einem festplattenlaufwerk
JPH05184178A (ja) * 1992-01-09 1993-07-23 Nissan Motor Co Ltd アクチュエータ制御装置
JP3248220B2 (ja) * 1992-03-18 2002-01-21 株式会社日立製作所 ディスク装置及びその制御方法
US5424885A (en) * 1993-01-11 1995-06-13 Seagate Technology, Inc. Method for following data tracks in a disc drive using an improved thermal calibration method
US5777816A (en) * 1993-05-12 1998-07-07 Seagate Technology, Inc. Data track following method for disc drives
US5550685A (en) * 1993-10-22 1996-08-27 Syquest Technology, Inc. Applying an adaptive feed-forward algorithm as a frequency selective filter in a closed loop disk drive servo system in order to compensate for periodic perturbations which otherwise appear in the servo system position error signal
US5400201A (en) * 1993-10-25 1995-03-21 Syquest Technology, Inc. Servo burst pattern for removing offset caused by magnetic distortion and method associated therewith
WO1996010821A1 (en) * 1994-09-30 1996-04-11 Maxtor Corporation Off-track pes calibration for a magneto-resistive element
EP0777215B1 (de) * 1995-11-30 2002-12-11 Hewlett-Packard Company, A Delaware Corporation Sinusförmige Verstärkungskorrektur zum Kompensieren der Verstärkungsänderungen eines magnetoresistiven Servokopfes
US5867343A (en) * 1996-05-01 1999-02-02 Samsung Electronics, Ltd. Method and apparatus for storing position offset information on a hard drive assembly cylinder
US6008962A (en) * 1996-05-01 1999-12-28 Samsung Electronics Co., Ltd. Method and apparatus for providing read and write skew offset information for a magneto-resistive head
KR0176653B1 (ko) * 1996-05-31 1999-04-15 김광호 디스크 구동 기록장치의 서보제어계 게인 교정방법
US6097564A (en) * 1996-06-05 2000-08-01 Mobile Storage Technology Inc. Method for precise velocity feedback control in an actuator system of a disk drive
JPH1027444A (ja) * 1996-07-10 1998-01-27 Fujitsu Ltd ディスク装置のポジション感度調整方法
US5774299A (en) * 1996-08-13 1998-06-30 Seagate Technology, Inc. Adaptive calibration of read/write elements in a disc drive
AU2823397A (en) * 1996-11-19 1998-06-10 Swan Instruments Apparatus and method for servo system calibration of a removable diskette medium
US6078445A (en) * 1997-08-07 2000-06-20 International Business Machines Corporation Gain control for a dual burst, dual frequency PES servo pattern
US6243223B1 (en) 1998-01-15 2001-06-05 Western Digital Corporation Disk drive with servo burst phasing for improved linearity and off-track performance with a wide reading transducer
US6198584B1 (en) 1998-04-30 2001-03-06 Western Digital Corporation Disk drive with staggered calibration bursts that are disposably located in data regions and method of using the same for calibrating a read head
US6429994B1 (en) 1998-08-14 2002-08-06 Samsung Electronics Co., Ltd Method and apparatus for providing servo gain linearization for a magneto-resistive head
US6204988B1 (en) 1998-08-24 2001-03-20 Western Digital Corporation Disk drive capable of autonomously evaluating and adapting the frequency response of its servo control system
WO2000016332A1 (en) 1998-09-14 2000-03-23 Seagate Technology Llc Concentric spacing of virtual data tracks using run-out compensation
US6441988B2 (en) 1998-10-07 2002-08-27 Samsung Electronics Co., Ltd. Method and apparatus for reducing acoustic noise in a hard disk drive
US6704354B1 (en) 1998-10-16 2004-03-09 Samsung Electronics Co., Ltd. Method and apparatus of providing adaptive equalization using sign permutation filtering
US6381088B1 (en) 1998-11-06 2002-04-30 Acorn Technologies, Inc. Apparatus for developing a dynamic servo signal from data in a magnetic disc drive and method
USRE40413E1 (en) * 1998-11-06 2008-07-01 Purchased Patent Management Llc Method and apparatus for developing a dynamic servo signal from data
US6704161B1 (en) 1998-11-06 2004-03-09 Samsung Electronics Co. Ltd. Shock protection skin bumper for a hard disk drive
US6417986B1 (en) 1998-11-16 2002-07-09 Samsung Electronics Co., Ltd. Impact guard for limiting hard disk movement
KR100542681B1 (ko) * 1998-12-10 2006-04-12 삼성전자주식회사 서보성능 분석을 위한 보드 플롯 획득방법
US6549372B1 (en) 1998-12-15 2003-04-15 Samsung Electronics Co., Ltd Device for limiting head movement within a hard disk drive
CN1354881A (zh) 1999-02-22 2002-06-19 西加特技术有限责任公司 利用不同伺服脉冲数据验证模式的寻道恢复
US6606215B1 (en) 1999-02-22 2003-08-12 Seagate Technology Llc Compensation for repeatable runout error
US6417994B1 (en) 1999-04-22 2002-07-09 Samsung Electronics, Co., Ltd. Swage plate with protruded walls to increase retention torque in hard disk applications
KR20020030739A (ko) 1999-05-07 2002-04-25 추후 디스크 저장 시스템에서 반복 학습 제어를 이용한반복가능한 런아웃 보상
US6501614B1 (en) 1999-08-19 2002-12-31 Samsung Electronics Co., Ltd. Acoustic insulator for controlling noise generated in a mass storage device
US6687079B1 (en) 1999-10-08 2004-02-03 Samsung Electronics Co., Ltd Apparatus and method for providing servo gain linearization for a magneto-resistive head
JP4281935B2 (ja) * 1999-10-12 2009-06-17 富士通株式会社 二重アクチュエータ制御システムのキャリブレーション方法
US6317285B1 (en) 1999-10-28 2001-11-13 Seagate Technology Llc Method for calibrating MR head geometry in selfservo writing disc drives
US6744597B2 (en) 1999-10-29 2004-06-01 Samsung Electronics Co., Ltd. Dynamic absorber for an actuator arm in a disk drive
US6594103B1 (en) 1999-11-12 2003-07-15 Acorn Technologies, Inc. Read channel generating absolute value servo signal
US6545836B1 (en) * 1999-11-12 2003-04-08 Acorn Technologies, Inc. Servo control apparatus and method using absolute value input signals
US6549364B1 (en) 1999-12-15 2003-04-15 Samsung Electronics Co., Ltd. Optimization method and apparatus for a generalized fourier seek trajectory for a hard disk drive servomechanism
US6501613B1 (en) 1999-12-15 2002-12-31 Samsung Electronics Co., Ltd. Generalized Fourier seek method and apparatus for a hard disk drive servomechanism
US6952320B1 (en) 1999-12-16 2005-10-04 Seagate Technology Llc Virtual tracks for repeatable runout compensation
US6947252B2 (en) 2000-05-10 2005-09-20 Samsung Electronics Co., Ltd. Wave stringer for controlling acoustic noise and shock vibration in a storage device
US6982849B2 (en) * 2000-09-14 2006-01-03 Samsung Electronics Co., Ltd. Method and apparatus for providing positional information on a disk
US6744590B2 (en) 2000-09-14 2004-06-01 Samsung Electronics Co., Inc. Seek trajectory adaptation in sinusoidal seek servo hard disk drives
US6801384B2 (en) 2000-09-14 2004-10-05 Samsung Electronics Co., Ltd. Voltage-constrained sinusoidal seek servo in hard disk drives
US6892213B2 (en) 2000-09-28 2005-05-10 Seagate Technology Llc Digital sine/cosine wave generator
US6446517B1 (en) 2000-11-20 2002-09-10 Samsung Electronics Company Controlled particle deposition in drives and on media for thermal asperity studies
US6762902B2 (en) 2000-12-15 2004-07-13 Samsung Electronics Co., Ltd. Time-varying, non-synchronous disturbance identification and cancellation in a rotating disk storage device
US7522480B2 (en) 2001-01-25 2009-04-21 Dphi Acquisitions, Inc. Digital tracking servo system with multi-track seek with an acceleration clamp
US6590738B2 (en) 2001-03-01 2003-07-08 Samsung Electronics Co., Ltd. Particle removal device in a hard disk drive
US6700731B2 (en) * 2001-05-31 2004-03-02 Samsung Electronics Co., Inc. In-situ linearization of magnetic read/write head transducer position error signal
US6762908B2 (en) 2001-06-18 2004-07-13 Samsung Electronics Co., Ltd. Air razor and disk limiter for a hard disk drive
US6975480B1 (en) 2002-04-17 2005-12-13 Western Digital Technologies, Inc. Method for determining repeatable runout cancellation values in a magnetic disk drive using filtering
US6917485B2 (en) * 2003-02-05 2005-07-12 Seagate Technology Llc Dynamic head switch timing recalibration apparatus and method
US7151645B2 (en) * 2003-09-23 2006-12-19 Seagate Technology Llc Interleaved repeatable runout estimation
US7196864B1 (en) 2005-06-15 2007-03-27 Western Digital Technologies, Inc. Disk drive having a servo control system optimized for faster determination of repeatable runout correction values and related method
US7319570B2 (en) 2005-09-19 2008-01-15 Seagate Technology Llc Random vibration and shock compensator using a disturbance observer
JP2009009624A (ja) * 2007-06-26 2009-01-15 Hitachi Global Storage Technologies Netherlands Bv サーボパターン形成方法および磁気ディスク装置
JP2016092935A (ja) * 2014-10-31 2016-05-23 ファナック株式会社 ゲイン自動調整支援装置
TWI805157B (zh) 2021-12-28 2023-06-11 財團法人工業技術研究院 伺服電機及其編碼器校正方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2364784A1 (de) * 1973-12-27 1975-07-03 Ibm Deutschland Spurnachlaufsteuerung fuer einen magnetplattenspeicher
US4642541A (en) * 1983-10-20 1987-02-10 Memorex Corporation Track following servo for higher density disk files
US4786990A (en) * 1986-05-30 1988-11-22 Hewlett-Packard Company Servo gain compensation in a disc drive
US4697127A (en) * 1986-06-09 1987-09-29 International Business Machines Corporation Adaptive control technique for a dynamic system
JPS6337815A (ja) * 1986-07-30 1988-02-18 Toshiba Corp 記録デ−タ再生装置
WO1988002913A1 (en) * 1986-10-14 1988-04-21 Maxtor Corporation Method and apparatus for controlling the position of a moveable head assembly

Also Published As

Publication number Publication date
EP0361222B1 (de) 1995-05-24
CA1318975C (en) 1993-06-08
JPH0294187A (ja) 1990-04-04
EP0361222A2 (de) 1990-04-04
EP0361222A3 (en) 1990-06-27
US4890172A (en) 1989-12-26
DE68922810D1 (de) 1995-06-29
DE68922810T2 (de) 1996-02-15
JP2875288B2 (ja) 1999-03-31

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