IT1074043B - Servocomando perfezionato per il posizionamento di trasduttori - Google Patents

Servocomando perfezionato per il posizionamento di trasduttori

Info

Publication number
IT1074043B
IT1074043B IT29126/76A IT2912676A IT1074043B IT 1074043 B IT1074043 B IT 1074043B IT 29126/76 A IT29126/76 A IT 29126/76A IT 2912676 A IT2912676 A IT 2912676A IT 1074043 B IT1074043 B IT 1074043B
Authority
IT
Italy
Prior art keywords
perfected
servo control
positioning transducers
transducers
positioning
Prior art date
Application number
IT29126/76A
Other languages
English (en)
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
Application granted granted Critical
Publication of IT1074043B publication Critical patent/IT1074043B/it

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/22—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from random access magazine of disc records
    • G11B17/30—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from random access magazine of disc records wherein the playing unit is moved according to the location of the selected record
    • 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
    • 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
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/02—Details
    • G11B17/021—Selecting or spacing of record carriers for introducing the heads
IT29126/76A 1975-12-19 1976-11-09 Servocomando perfezionato per il posizionamento di trasduttori IT1074043B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/642,646 US4191981A (en) 1975-12-19 1975-12-19 Record storage apparatus employing enhanced transducer positioning servomechanisms

Publications (1)

Publication Number Publication Date
IT1074043B true IT1074043B (it) 1985-04-17

Family

ID=24577442

Family Applications (1)

Application Number Title Priority Date Filing Date
IT29126/76A IT1074043B (it) 1975-12-19 1976-11-09 Servocomando perfezionato per il posizionamento di trasduttori

Country Status (7)

Country Link
US (1) US4191981A (it)
JP (1) JPS5816540B2 (it)
CA (1) CA1074422A (it)
DE (1) DE2645467C2 (it)
FR (1) FR2335883A1 (it)
GB (1) GB1541586A (it)
IT (1) IT1074043B (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4291349A (en) * 1976-08-04 1981-09-22 Burroughs Corporation Diverter means for flexible disk pack and associated method
US4143408A (en) * 1977-11-28 1979-03-06 International Business Machines Corp. External selector and internal controller for flexible disc stack
US4330803A (en) * 1979-08-06 1982-05-18 International Business Machines Corporation Disk accessing apparatus and method
US4363056A (en) * 1980-02-29 1982-12-07 Digital Equipment Corporation Disk housing for disk drive mass storage unit
US5090002A (en) * 1989-03-07 1992-02-18 International Business Machines Corporation Positioning systems employing velocity and position control loops with position control loop having an extended range
JP3096334B2 (ja) * 1991-11-08 2000-10-10 パイオニア株式会社 位置検出装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3757192A (en) * 1971-01-04 1973-09-04 Toyoda Machine Works Ltd Plural stepping motor numerical feed control device
US3940794A (en) * 1974-06-19 1976-02-24 International Business Machines Corporation Stacked flexible record disk storage apparatus having enhanced disk separation
US3936880A (en) * 1974-07-01 1976-02-03 International Business Machines Corporation Bistable deflection separation of flexible disks
US4011590A (en) * 1975-11-04 1977-03-08 International Business Machines Corporation Internal division actuation of ventilated floppy disk stack

Also Published As

Publication number Publication date
FR2335883B1 (it) 1978-12-29
US4191981A (en) 1980-03-04
DE2645467A1 (de) 1977-06-30
FR2335883A1 (fr) 1977-07-15
CA1074422A (en) 1980-03-25
DE2645467C2 (de) 1982-06-09
JPS5277711A (en) 1977-06-30
GB1541586A (en) 1979-03-07
JPS5816540B2 (ja) 1983-03-31

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