BE830431A - Procede et dispositif pour la separation et l'acces aux disques d'une memoire a disques magnetiques souples - Google Patents

Procede et dispositif pour la separation et l'acces aux disques d'une memoire a disques magnetiques souples

Info

Publication number
BE830431A
BE830431A BE157499A BE157499A BE830431A BE 830431 A BE830431 A BE 830431A BE 157499 A BE157499 A BE 157499A BE 157499 A BE157499 A BE 157499A BE 830431 A BE830431 A BE 830431A
Authority
BE
Belgium
Prior art keywords
discs
separation
access
memory
flexible magnetic
Prior art date
Application number
BE157499A
Other languages
English (en)
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 filed Critical
Publication of BE830431A publication Critical patent/BE830431A/fr

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
    • 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
BE157499A 1974-06-19 1975-06-19 Procede et dispositif pour la separation et l'acces aux disques d'une memoire a disques magnetiques souples BE830431A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/480,990 US3940794A (en) 1974-06-19 1974-06-19 Stacked flexible record disk storage apparatus having enhanced disk separation

Publications (1)

Publication Number Publication Date
BE830431A true BE830431A (fr) 1975-10-16

Family

ID=23910144

Family Applications (1)

Application Number Title Priority Date Filing Date
BE157499A BE830431A (fr) 1974-06-19 1975-06-19 Procede et dispositif pour la separation et l'acces aux disques d'une memoire a disques magnetiques souples

Country Status (14)

Country Link
US (1) US3940794A (fr)
JP (2) JPS5551261B2 (fr)
AR (1) AR212013A1 (fr)
BE (1) BE830431A (fr)
BR (1) BR7503858A (fr)
CA (2) CA1038491A (fr)
CH (1) CH593539A5 (fr)
DE (1) DE2517915B2 (fr)
FR (1) FR2275845A1 (fr)
GB (1) GB1499736A (fr)
IT (1) IT1037602B (fr)
NL (1) NL7506923A (fr)
SE (1) SE409524B (fr)
SU (1) SU667165A3 (fr)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4011591A (en) * 1975-11-04 1977-03-08 International Business Machines Corporation Internal division actuation of ventilated floppy disk stack
US4011590A (en) * 1975-11-04 1977-03-08 International Business Machines Corporation Internal division actuation of ventilated floppy disk stack
US4019204A (en) * 1975-11-19 1977-04-19 International Business Machines Corporation Fluidic transducer access opening in a stack of flexible record disks
US4191981A (en) * 1975-12-19 1980-03-04 International Business Machines Corporation Record storage apparatus employing enhanced transducer positioning servomechanisms
US4030136A (en) * 1976-02-13 1977-06-14 International Business Machines Corporation Flexible disk pack accessing apparatus and method
US4003091A (en) * 1976-03-08 1977-01-11 International Business Machines Corporation Transducer support and stabilizer
US4134143A (en) * 1976-08-04 1979-01-09 Burroughs Corporation Apparatus for driving and controlling a partitionable flexible disk pack
US4214286A (en) * 1976-08-04 1980-07-22 Burroughs Corporation Flexible disk pack and improved transducing-manipulation thereof
US4291349A (en) * 1976-08-04 1981-09-22 Burroughs Corporation Diverter means for flexible disk pack and associated method
US4148084A (en) * 1977-07-05 1979-04-03 Burroughs Corporation Flexible disk pack, related storage apparatus having disks with circumferential tab segments and associated partition means
US4175275A (en) * 1978-05-22 1979-11-20 International Business Machines Corporation R/W Arm that prevents catastrophic failure
DE2840851A1 (de) * 1978-09-20 1980-04-03 Ibm Deutschland Vorrichtung zum spreizen eines rotierenden stapels flexibler magnetischer aufzeichnungstraeger
US4286298A (en) * 1979-12-17 1981-08-25 International Business Machines Corporation Preloaded head arm assembly
US4571645A (en) * 1982-07-29 1986-02-18 Ixi Laboratories, Inc. Horizontal flexible disk loading and sorting/collating mechanism
US4912753A (en) * 1988-04-04 1990-03-27 Hughes Aircraft Company Robot axis controller employing feedback and open loop (feedforward) control
JP2814975B2 (ja) * 1996-01-16 1998-10-27 日本電気株式会社 磁気ヘッド及び磁気ディスク装置
US6791791B1 (en) * 2001-11-30 2004-09-14 Western Digital Technologies, Inc. Disk drive with disks having different disk stiffness, thickness and material combinations
US7986491B2 (en) * 2008-10-09 2011-07-26 Hitachi Global Storage Technologies Netherlands B.V. Hard disk drive with disk separator for creating axial gaps between disks for access by read/write heads
US8208215B2 (en) * 2009-02-10 2012-06-26 Hitachi Global Storage Technologies Netherlands, B.V. Techniques for emulating sequential device with constrained disk drive
US10214367B2 (en) * 2016-06-03 2019-02-26 Gruma S.A.B. De C.V. Rotating stacker
US10269380B1 (en) * 2017-11-14 2019-04-23 Seagate Technology Llc Disk drive having multiple disks accessible by a reduced number of read/write heads
US11423927B2 (en) 2018-04-27 2022-08-23 Seagate Technology Llc Assembly that enables reduction in disk to disk spacing
US10811045B2 (en) 2018-04-27 2020-10-20 Seagate Technology Llc Assembly that enables reduction in disk to disk spacing
US11043235B2 (en) 2018-04-27 2021-06-22 Seagate Technology Llc Assembly that enables reduction in disk to disk spacing
US10706879B2 (en) * 2018-07-19 2020-07-07 Western Digital Technologies, Inc. Vertically translating load/unload ramp mechanism for cold storage data storage device
US10930307B2 (en) * 2019-01-14 2021-02-23 Western Digital Technologies, Inc. Piezoelectric-based locking of actuator elevator mechanism for cold storage data storage device
EP3785261A4 (fr) 2019-07-18 2021-03-03 Western Digital Technologies Inc. Mécanisme de rampe de chargement/déchargement à translation verticale pour dispositif de stockage de données de stockage à froid
US11094347B1 (en) 2020-04-30 2021-08-17 Seagate Technology Llc Split ramp for data storage devices
US11756579B2 (en) 2020-06-24 2023-09-12 Seagate Technology Llc Moveable ramp for data storage device
US11308984B2 (en) 2020-06-24 2022-04-19 Seagate Technology Llc Retractable ramp for data storage devices
US10916271B1 (en) 2020-06-25 2021-02-09 Western Digital Technologies, Inc. Eliminating lead screw hysteresis for vertically translating load/unload ramp mechanism for data storage device
US11651784B2 (en) 2020-09-02 2023-05-16 Seagate Technology Llc Actuators for an elevator drive
US11120834B1 (en) 2020-09-02 2021-09-14 Seagate Technology Llc Actuators for an elevator drive
US11443763B1 (en) 2021-06-18 2022-09-13 Seagate Technology Llc Disk drive with multiple actuators on a pivot axis

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL212389A (fr) * 1955-02-02
NL6603388A (fr) * 1965-03-30 1966-10-03
US3703713A (en) * 1971-09-24 1972-11-21 Univ Iowa State Res Found Variable diameter disc pack with cooperating head
US3731292A (en) * 1971-09-27 1973-05-01 Arvin Ind Inc Finger between flexible disc and backing plate
US3838462A (en) * 1973-07-02 1974-09-24 Ibm Partitionable disc memory with flexible discs and conformally suspended head
US3852820A (en) * 1973-07-02 1974-12-03 Ibm Stabilization of partitionable memory with flexible rotating discs

Also Published As

Publication number Publication date
SU667165A3 (ru) 1979-06-05
DE2517915C3 (fr) 1978-08-17
BR7503858A (pt) 1976-07-06
DE2517915B2 (de) 1977-12-15
FR2275845B1 (fr) 1977-04-15
SE7506875L (sv) 1975-12-22
US3940794A (en) 1976-02-24
JPS5114010A (fr) 1976-02-04
CA1038492A (fr) 1978-09-12
CA1038491A (fr) 1978-09-12
NL7506923A (nl) 1975-12-23
GB1499736A (en) 1978-02-01
SE409524B (sv) 1979-08-20
JPS5551261B2 (fr) 1980-12-23
FR2275845A1 (fr) 1976-01-16
CH593539A5 (fr) 1977-12-15
JPS5316608A (en) 1978-02-15
IT1037602B (it) 1979-11-20
AR212013A1 (es) 1978-04-28
DE2517915A1 (de) 1976-01-08

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: INTERNATIONAL BUSINESS MACHINES CORP.

Effective date: 19860630