CA1220270A - Servomecanisme utilisant une frequence variable pour positionner la tete de lecture-ecriture d'un fichier a disques magnetiques - Google Patents

Servomecanisme utilisant une frequence variable pour positionner la tete de lecture-ecriture d'un fichier a disques magnetiques

Info

Publication number
CA1220270A
CA1220270A CA000499459A CA499459A CA1220270A CA 1220270 A CA1220270 A CA 1220270A CA 000499459 A CA000499459 A CA 000499459A CA 499459 A CA499459 A CA 499459A CA 1220270 A CA1220270 A CA 1220270A
Authority
CA
Canada
Prior art keywords
head
segments
disk
servo
segment
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
CA000499459A
Other languages
English (en)
Inventor
William J. Kabelac
Ian L. Sanders
Shen Jen
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
Priority claimed from US06/713,319 external-priority patent/US4620397A/en
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of CA1220270A publication Critical patent/CA1220270A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Moving Of The Head To Find And Align With The Track (AREA)
CA000499459A 1985-03-18 1986-01-13 Servomecanisme utilisant une frequence variable pour positionner la tete de lecture-ecriture d'un fichier a disques magnetiques Expired CA1220270A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/713,319 1985-03-18
US06/713,319 US4620397A (en) 1979-11-13 1985-03-18 Roof system positionable over an existing roof structure and method for installing same

Publications (1)

Publication Number Publication Date
CA1220270A true CA1220270A (fr) 1987-04-07

Family

ID=24865672

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000499459A Expired CA1220270A (fr) 1985-03-18 1986-01-13 Servomecanisme utilisant une frequence variable pour positionner la tete de lecture-ecriture d'un fichier a disques magnetiques

Country Status (1)

Country Link
CA (1) CA1220270A (fr)

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