CA919285A - Positioning device - Google Patents

Positioning device

Info

Publication number
CA919285A
CA919285A CA099487A CA99487A CA919285A CA 919285 A CA919285 A CA 919285A CA 099487 A CA099487 A CA 099487A CA 99487 A CA99487 A CA 99487A CA 919285 A CA919285 A CA 919285A
Authority
CA
Canada
Prior art keywords
positioning device
positioning
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
CA099487A
Other versions
CA99487S (en
Inventor
P. Gates Geoffrey
Jilke Willi
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.)
California Computer Products Inc
Original Assignee
California Computer Products Inc
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 California Computer Products Inc filed Critical California Computer Products Inc
Application granted granted Critical
Publication of CA919285A publication Critical patent/CA919285A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G05D3/1436—Control of position or direction using feedback using an analogue comparing device with fine or coarse devices
    • 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
    • G05D3/1418—Control of position or direction using feedback using an analogue comparing device with ac amplifier chain
    • 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
    • G05D3/20—Control of position or direction using feedback using a digital comparing device
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Control Of Linear Motors (AREA)
  • Control Of Position Or Direction (AREA)
CA099487A 1969-12-15 1970-11-30 Positioning device Expired CA919285A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88488569A 1969-12-15 1969-12-15

Publications (1)

Publication Number Publication Date
CA919285A true CA919285A (en) 1973-01-16

Family

ID=25385635

Family Applications (1)

Application Number Title Priority Date Filing Date
CA099487A Expired CA919285A (en) 1969-12-15 1970-11-30 Positioning device

Country Status (5)

Country Link
CA (1) CA919285A (en)
DE (1) DE2061721A1 (en)
FR (1) FR2072813A5 (en)
GB (1) GB1292727A (en)
SE (1) SE360487B (en)

Also Published As

Publication number Publication date
GB1292727A (en) 1972-10-11
FR2072813A5 (en) 1971-09-24
SE360487B (en) 1973-09-24
DE2061721A1 (en) 1971-06-24

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