FR2424605B1 - MAGNETIC DISC MEMORY, PIVOTING HEAD AND STEPPER MOTOR CONTROL THROUGH A BELT TRANSMISSION - Google Patents

MAGNETIC DISC MEMORY, PIVOTING HEAD AND STEPPER MOTOR CONTROL THROUGH A BELT TRANSMISSION

Info

Publication number
FR2424605B1
FR2424605B1 FR7911200A FR7911200A FR2424605B1 FR 2424605 B1 FR2424605 B1 FR 2424605B1 FR 7911200 A FR7911200 A FR 7911200A FR 7911200 A FR7911200 A FR 7911200A FR 2424605 B1 FR2424605 B1 FR 2424605B1
Authority
FR
France
Prior art keywords
motor control
stepper motor
belt transmission
magnetic disc
pivoting head
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
FR7911200A
Other languages
French (fr)
Other versions
FR2424605A1 (en
Inventor
Robert Kaseta
Len Daugherty
Sigmund Hinlein
Michael Feldstein
Paul Otavsky
Harold Thackaberry
Robert Barrows
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.)
EMC Corp
Original Assignee
Data General 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 US05/899,047 external-priority patent/US4163996A/en
Priority claimed from US05/899,044 external-priority patent/US4164769A/en
Application filed by Data General Corp filed Critical Data General Corp
Publication of FR2424605A1 publication Critical patent/FR2424605A1/en
Application granted granted Critical
Publication of FR2424605B1 publication Critical patent/FR2424605B1/en
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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
FR7911200A 1978-04-24 1979-04-24 MAGNETIC DISC MEMORY, PIVOTING HEAD AND STEPPER MOTOR CONTROL THROUGH A BELT TRANSMISSION Expired FR2424605B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/899,047 US4163996A (en) 1978-04-24 1978-04-24 Rigid magnetic disc memory apparatus employing stepper motor drive and pivotable head support with temperature compensation
US05/899,044 US4164769A (en) 1978-04-24 1978-04-24 Cross band coupling for stepper-motor-driven, rigid magnetic disc

Publications (2)

Publication Number Publication Date
FR2424605A1 FR2424605A1 (en) 1979-11-23
FR2424605B1 true FR2424605B1 (en) 1987-08-28

Family

ID=27129221

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7911200A Expired FR2424605B1 (en) 1978-04-24 1979-04-24 MAGNETIC DISC MEMORY, PIVOTING HEAD AND STEPPER MOTOR CONTROL THROUGH A BELT TRANSMISSION

Country Status (1)

Country Link
FR (1) FR2424605B1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3500363A (en) * 1966-07-11 1970-03-10 Singer Co Scanning apparatus
FR1528248A (en) * 1966-07-11 1968-06-07 Friden Improved apparatus for scanning an information storage medium
US3681525A (en) * 1970-02-20 1972-08-01 Victor Company Of Japan Digital rotation motor

Also Published As

Publication number Publication date
FR2424605A1 (en) 1979-11-23

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Legal Events

Date Code Title Description
ST Notification of lapse