FR2208543A5 - - Google Patents

Info

Publication number
FR2208543A5
FR2208543A5 FR7338735A FR7338735A FR2208543A5 FR 2208543 A5 FR2208543 A5 FR 2208543A5 FR 7338735 A FR7338735 A FR 7338735A FR 7338735 A FR7338735 A FR 7338735A FR 2208543 A5 FR2208543 A5 FR 2208543A5
Authority
FR
France
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
FR7338735A
Other languages
French (fr)
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
Application granted granted Critical
Publication of FR2208543A5 publication Critical patent/FR2208543A5/fr
Expired 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
    • G11B5/54—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
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/14—Control of position or direction using feedback using an analogue comparing device
    • G05D3/1445—Control of position or direction using feedback using an analogue comparing device with a plurality of loops
    • G05D3/1463—Control of position or direction using feedback using an analogue comparing device with a plurality of loops using PID devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Position Or Direction (AREA)
  • Moving Of Head For Track Selection And Changing (AREA)
  • Automatic Control Of Machine Tools (AREA)
FR7338735A 1972-11-29 1973-10-23 Expired FR2208543A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722258382 DE2258382A1 (en) 1972-11-29 1972-11-29 REGULATING DEVICE FOR CONTROLLING THE MOVEMENT OF AN ADJUSTMENT ELEMENT

Publications (1)

Publication Number Publication Date
FR2208543A5 true FR2208543A5 (en) 1974-06-21

Family

ID=5862992

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7338735A Expired FR2208543A5 (en) 1972-11-29 1973-10-23

Country Status (4)

Country Link
JP (1) JPS4984622A (en)
DE (1) DE2258382A1 (en)
FR (1) FR2208543A5 (en)
GB (1) GB1405028A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5360609A (en) * 1976-11-12 1978-05-31 Fujitsu Ltd Magnetic disk device of data module type
DE2813855A1 (en) * 1978-03-31 1979-10-11 Ncr Co Positioning system for transport mechanism - uses difference between nominal and actual values of pulse period for motor voltage control
US4383209A (en) 1980-10-15 1983-05-10 Minnesota Mining And Manufacturing Company Control system for transducer positioning motor
US4439800A (en) * 1981-04-24 1984-03-27 Iomega Corporation Servo control of seek operation in magnetic disk drive
DE3122621A1 (en) * 1981-06-06 1982-12-23 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut POSITIONING DEVICE
US4675761A (en) * 1986-03-03 1987-06-23 International Business Machines Corporation Magnetic head positioning apparatus and method
GB2238403B (en) * 1989-09-29 1993-12-22 Litton Uk Ltd Drive systems for transportation mechanisms

Also Published As

Publication number Publication date
GB1405028A (en) 1975-09-03
JPS4984622A (en) 1974-08-14
DE2258382A1 (en) 1974-06-06

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Legal Events

Date Code Title Description
ST Notification of lapse