FR2593318B1 - Organe de memoire a disque magnetique - Google Patents
Organe de memoire a disque magnetiqueInfo
- 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
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
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)
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 |
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 |
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 |
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 |
DE69428670T2 (de) * | 1994-01-28 | 2002-07-11 | International Business Machines Corp., Armonk | Aufprallvermeidungsschockring zum Schutz von Plattenantriebsmotorlagerungen |
Family Cites Families (16)
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 |
BR8207980A (pt) * | 1981-11-16 | 1983-10-04 | Dma Systems Corp | Motor linear e carro combinados |
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 |
-
1987
- 1987-01-21 DE DE19873701635 patent/DE3701635A1/de not_active Withdrawn
- 1987-01-21 FR FR8700640A patent/FR2593318B1/fr not_active Expired - Fee Related
- 1987-01-21 GB GB8701250A patent/GB2187031B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB2187031A (en) | 1987-08-26 |
GB2187031B (en) | 1990-10-17 |
DE3701635A1 (de) | 1987-09-10 |
GB8701250D0 (en) | 1987-02-25 |
FR2593318A1 (fr) | 1987-07-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |