FR2593318B1 - Organe de memoire a disque magnetique - Google Patents

Organe de memoire a disque magnetique

Info

Publication number
FR2593318B1
FR2593318B1 FR8700640A FR8700640A FR2593318B1 FR 2593318 B1 FR2593318 B1 FR 2593318B1 FR 8700640 A FR8700640 A FR 8700640A FR 8700640 A FR8700640 A FR 8700640A FR 2593318 B1 FR2593318 B1 FR 2593318B1
Authority
FR
France
Prior art keywords
magnetic disc
memory body
disc memory
magnetic
memory
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 - Fee Related
Application number
FR8700640A
Other languages
English (en)
Other versions
FR2593318A1 (fr
Inventor
James A Augeri
Carl Bolz
Bruce Bickford
Paul Young
David Johnson
David W Richard
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.)
Raymond Engineering Inc
Original Assignee
Raymond Engineering 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 Raymond Engineering Inc filed Critical Raymond Engineering Inc
Publication of FR2593318A1 publication Critical patent/FR2593318A1/fr
Application granted granted Critical
Publication of FR2593318B1 publication Critical patent/FR2593318B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
    • G11B33/08—Insulation or absorption of undesired vibrations or sounds
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
    • G11B33/1406—Reducing the influence of the temperature
    • 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
    • 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
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
    • G11B33/1493—Electro-Magnetic Interference [EMI] or Radio Frequency Interference [RFI] shielding; grounding of static charges
FR8700640A 1986-01-21 1987-01-21 Organe de memoire a disque magnetique Expired - Fee Related FR2593318B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US82110186A 1986-01-21 1986-01-21
US94182086A 1986-12-15 1986-12-15

Publications (2)

Publication Number Publication Date
FR2593318A1 FR2593318A1 (fr) 1987-07-24
FR2593318B1 true FR2593318B1 (fr) 1991-02-08

Family

ID=27124513

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8700640A Expired - Fee Related FR2593318B1 (fr) 1986-01-21 1987-01-21 Organe de memoire a disque magnetique

Country Status (3)

Country Link
DE (1) DE3701635A1 (fr)
FR (1) FR2593318B1 (fr)
GB (1) GB2187031B (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4831469A (en) * 1987-07-29 1989-05-16 International Business Machines Corporation Disk drive head retract and motor braking method and apparatus
GB2235330A (en) * 1989-06-20 1991-02-27 Tokico Ltd Magnetic disc apparatus
JP2706329B2 (ja) * 1989-10-06 1998-01-28 三菱電機株式会社 記録・再生ヘッドのロード・アンロード機構
USRE38390E1 (en) 1989-10-06 2004-01-20 Mitsubishi Denki Kabushiki Kaisha Read/write head retract mechanism
JPH0731891B2 (ja) * 1989-10-06 1995-04-10 三菱電機株式会社 磁気ディスク装置
US5227929A (en) * 1990-11-26 1993-07-13 International Business Machines Corporation Portable computer hard disk protective reflex system
JPH04200248A (ja) * 1990-11-29 1992-07-21 Mitsubishi Electric Corp ディスク装置
ES2162852T3 (es) * 1994-01-28 2002-01-16 Ibm Anillo antichoque para la proteccion de los cojinetes de un motor de unidad de disco.

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3713121A (en) * 1970-05-25 1973-01-23 Ibm Arm vibration damper
US3629679A (en) * 1970-06-29 1971-12-21 Information Storage Systems Linear motor power failure detection circuit and fail-safe control
GB1342495A (en) * 1971-03-13 1974-01-03 Ibm Transducer arms for magnetic disc recording and or reproducing apparatus
DE2730719C2 (de) * 1977-07-07 1986-02-20 Basf Ag, 6700 Ludwigshafen Einrichtung zum selbsttätigen Laden/Entladen eines Magnetkopfes in einem Magnetplattenlaufwerk
US4237501A (en) * 1978-07-25 1980-12-02 Pertec Computer Corporation Emergency head unload system for magnetic disk drive
DE3135385A1 (de) * 1980-03-05 1983-03-17 Papst-Motoren GmbH & Co KG, 7742 St Georgen Plattenspeicher
US4323939A (en) * 1980-04-11 1982-04-06 Shugart Technology Hard fixed disc drive assembly and read-write head actuator
US4371903A (en) * 1981-09-28 1983-02-01 Dma Systems Corporation Emergency head retract system for magnetic disc drives
WO1983001872A1 (fr) * 1981-11-16 1983-05-26 Dma Systems Corp Moteur lineaire et chariot combines
FR2528213B1 (fr) * 1982-06-03 1987-12-18 Tandon Corp Dispositif de memoire a disque magnetique
US4535374A (en) * 1982-11-04 1985-08-13 Amcodyne Incorporated Whitney-type head loading/unloading apparatus
US4663682A (en) * 1983-11-29 1987-05-05 Dma Systems Corporation Apparatus for loading and unloading a magnetic head assembly on a magnetic recording surface
DE3404208A1 (de) * 1984-02-07 1985-08-08 Siemens AG, 1000 Berlin und 8000 München Magnetplattenspeicher mit in einem federnd ausgebildeten gehaeuse beidseitig gelagerten plattenstapel
DE3419814C1 (de) * 1984-05-26 1985-11-28 GMN Georg Müller Nürnberg GmbH, 8500 Nürnberg Motorspindel fuer Magnetplattenspeicher
US4556969A (en) * 1984-12-28 1985-12-03 International Business Machines Corporation Hermetically sealed disk file
US4639863A (en) * 1985-06-04 1987-01-27 Plus Development Corporation Modular unitary disk file subsystem

Also Published As

Publication number Publication date
GB2187031B (en) 1990-10-17
GB2187031A (en) 1987-08-26
DE3701635A1 (de) 1987-09-10
FR2593318A1 (fr) 1987-07-24
GB8701250D0 (en) 1987-02-25

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Legal Events

Date Code Title Description
ST Notification of lapse