IT1160328B - Sistema di posizionamento perfezionato - Google Patents

Sistema di posizionamento perfezionato

Info

Publication number
IT1160328B
IT1160328B IT30729/78A IT3072978A IT1160328B IT 1160328 B IT1160328 B IT 1160328B IT 30729/78 A IT30729/78 A IT 30729/78A IT 3072978 A IT3072978 A IT 3072978A IT 1160328 B IT1160328 B IT 1160328B
Authority
IT
Italy
Prior art keywords
perfected
positioning system
positioning
perfected positioning
Prior art date
Application number
IT30729/78A
Other languages
English (en)
Other versions
IT7830729A0 (it
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Publication of IT7830729A0 publication Critical patent/IT7830729A0/it
Application granted granted Critical
Publication of IT1160328B publication Critical patent/IT1160328B/it

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
    • G11B5/54—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
    • G11B5/553—Details
    • G11B5/5547—"Seek" control and circuits therefor
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
    • G05B19/21—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device
    • G05B19/23—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device for point-to-point control
    • G05B19/231—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device for point-to-point control the positional error is used to control continuously the servomotor according to its magnitude
    • G05B19/232—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device for point-to-point control the positional error is used to control continuously the servomotor according to its magnitude with speed feedback only
IT30729/78A 1977-12-23 1978-12-12 Sistema di posizionamento perfezionato IT1160328B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/863,832 US4133011A (en) 1977-12-23 1977-12-23 Sampled data positioning system employing a model of the physical system for time optimal control

Publications (2)

Publication Number Publication Date
IT7830729A0 IT7830729A0 (it) 1978-12-12
IT1160328B true IT1160328B (it) 1987-03-11

Family

ID=25341892

Family Applications (1)

Application Number Title Priority Date Filing Date
IT30729/78A IT1160328B (it) 1977-12-23 1978-12-12 Sistema di posizionamento perfezionato

Country Status (6)

Country Link
US (1) US4133011A (it)
EP (1) EP0003070B1 (it)
JP (1) JPS596402B2 (it)
CA (1) CA1109141A (it)
DE (1) DE2861419D1 (it)
IT (1) IT1160328B (it)

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US4168457A (en) * 1977-12-29 1979-09-18 Sperry Rand Corporation Self adaptive speed control system
US4246536A (en) * 1978-09-29 1981-01-20 International Business Machines Corporation Electronic velocity measurement device
JPS5564662A (en) * 1978-11-08 1980-05-15 Toshiba Corp Self-compensator for magnetic disk memory unit
JPS5564661A (en) * 1978-11-08 1980-05-15 Toshiba Corp Self-compensator for magnetic disk memory unit
GB2039078B (en) * 1978-12-27 1982-11-24 Ibm Sampled data servo positioning system
US4237502A (en) * 1979-07-10 1980-12-02 Per Sci, Inc. Disk drive system
US4300174A (en) * 1979-12-21 1981-11-10 Persci, Inc. Guard band control for magnetic disks
US4288731A (en) * 1980-02-22 1981-09-08 Sperry Corporation Average value tachometer for a disc drive servo and the like
DE3016933A1 (de) * 1980-05-02 1981-11-05 Hermann Dipl.-Math. 6940 Weinheim Drösel Digitaler servoachsen-simulator
US4462053A (en) * 1981-07-02 1984-07-24 Irwin International, Inc. Method for controlling a disc head
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
JPS5984379A (ja) * 1982-11-08 1984-05-16 Nec Corp デイスク状記録担体のトラツクアクセス装置
US4575776A (en) * 1982-12-20 1986-03-11 International Business Machines Corporation Magnetic recording disk file servo control system including an actuator model for generating a simulated head position error signal
WO1984003583A1 (en) * 1983-03-07 1984-09-13 Storage Technology Partners System for sensing the rotational position of a rotating disk having coarse seek tracks
US4646635A (en) * 1984-10-04 1987-03-03 Pitney Bowes Inc. Microprocessor controlled D.C. motor for controlling print value selection means
FR2594586B1 (fr) * 1986-02-14 1988-04-29 Bull Sa Procede pour deplacer un systeme mobile par rapport a un support d'informations et dispositif pour le mettre en oeuvre
US4679103A (en) * 1986-04-29 1987-07-07 International Business Machines Corporation Digital servo control system for a data recording disk file
EP0247829A1 (en) * 1986-05-26 1987-12-02 Pioneer Electronic Corporation Method and apparatus for correcting loop gain of a fine adjustment servo loop
US4697127A (en) * 1986-06-09 1987-09-29 International Business Machines Corporation Adaptive control technique for a dynamic system
US4775903A (en) * 1986-10-14 1988-10-04 Hewlett-Packard Company Sampled servo seek and track follow system for a magnetic disc drive
JPH0783625B2 (ja) * 1987-04-03 1995-09-06 三菱電機株式会社 検出ヘツドの速度制御装置
US4835632A (en) * 1987-09-16 1989-05-30 International Business Machines Corporation Disk file digital servo control system with multiple sampling rate
US4835633A (en) * 1987-09-16 1989-05-30 International Business Machines Corporation Disk file digital servo control system with compensation for variation in actuator acceleration factor
US4914644A (en) * 1988-09-26 1990-04-03 International Business Machines Corporation Disk file digital servo control system with coil current modeling
US5111349A (en) * 1989-02-07 1992-05-05 Alps Electric (Usa), Inc. Digital servo system for moving body by a distance equal to an integral multiple of a predetermined pitch
JP2762364B2 (ja) * 1989-03-20 1998-06-04 ファナック株式会社 サーボモータのフィードフォワード制御方法
US5038333A (en) * 1989-05-05 1991-08-06 International Business Machines Corporation Positioning systems including reliable track crossing detection for high speed relative motions
US5231550A (en) * 1990-03-12 1993-07-27 Fujitsu Limited Track access control system preventing unintentional delay in movement of head in non-adjusted disc device
JP2753373B2 (ja) * 1990-04-25 1998-05-20 株式会社日立製作所 位置決め制御装置
US5159660A (en) * 1990-08-09 1992-10-27 Western Thunder Universal process control using artificial neural networks
EP0507907B1 (en) * 1990-09-18 1999-01-13 Rodime PLC Digital servo control system for use in disk drives
JP2634489B2 (ja) * 1990-12-21 1997-07-23 富士通株式会社 磁気ディスク装置
DE4121375A1 (de) * 1991-06-28 1993-01-14 Asea Brown Boveri Abschaltbares leistungshalbleiter-bauelement sowie verfahren zu dessen herstellung
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
US5291110A (en) * 1991-10-31 1994-03-01 Integral Peripherals, Inc. Low acoustic noise seeking method and apparatus
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
JPH0973618A (ja) * 1995-09-07 1997-03-18 Toshiba Corp 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
JP3229204B2 (ja) * 1996-01-26 2001-11-19 シャープ株式会社 制御装置および情報記録再生装置
KR100251924B1 (ko) * 1996-09-02 2000-04-15 윤종용 탐색시 소음을 줄이기 위한 적응피이드포워드 제어방법
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
US6219198B1 (en) 1998-07-14 2001-04-17 International Business Machines Corporation State estimator alteration for odd sample times in a disk drive servo control system
KR100459721B1 (ko) * 2002-08-31 2004-12-03 삼성전자주식회사 제어가능한 더미 리드 게이트를 이용한 재생방법 및 그제어장치
JP4391789B2 (ja) * 2003-10-03 2009-12-24 本田技研工業株式会社 モデルパラメータを部分的に同定する同定器を備えた、プラントを制御する制御装置
CN107257730B (zh) * 2015-04-02 2019-10-22 惠普发展公司，有限责任合伙企业 基于连续模型的前馈项

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US3221229A (en) * 1962-01-22 1965-11-30 Massachusetts Inst Technology Model reference adaptive control system
US3137462A (en) * 1962-04-24 1964-06-16 Honeywell Regulator Co Control apparatus for a craft
US3427606A (en) * 1966-03-02 1969-02-11 Ibm Memory system
US3601588A (en) * 1966-05-23 1971-08-24 Foxboro Co Method and apparatus for adaptive control
US3657534A (en) * 1970-03-12 1972-04-18 Us Army Digital scale for tomography and method of using same
US3758762A (en) * 1972-07-10 1973-09-11 Leeds & Northrup Co Decoupled feedforward-feedback control system
US3812533A (en) * 1972-12-22 1974-05-21 Vermont Res Corp Information storage unit transducer positioning system
US4056830A (en) * 1974-03-15 1977-11-01 Burroughs Corporation Utilizing data for transducer positioning
US3881184A (en) * 1974-05-28 1975-04-29 Ibm Adaptive digital servo system
US4030132A (en) * 1975-03-27 1977-06-14 Memorex Corporation Dual mode velocity servo control for a linear actuator motor
US4032984A (en) * 1975-04-28 1977-06-28 Burroughs Corporation Transducer positioning system for providing both coarse and fine positioning

Also Published As

Publication number Publication date
EP0003070A1 (en) 1979-07-25
US4133011A (en) 1979-01-02
JPS5487368A (en) 1979-07-11
EP0003070B1 (en) 1981-12-02
DE2861419D1 (en) 1982-01-28
IT7830729A0 (it) 1978-12-12
CA1109141A (en) 1981-09-15
JPS596402B2 (ja) 1984-02-10

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