IT1031238B - Dispositivo magnetico di memoria formato da un sottile di sco flessibile - Google Patents
Dispositivo magnetico di memoria formato da un sottile di sco flessibileInfo
- Publication number
- IT1031238B IT1031238B IT19690/75A IT1969075A IT1031238B IT 1031238 B IT1031238 B IT 1031238B IT 19690/75 A IT19690/75 A IT 19690/75A IT 1969075 A IT1969075 A IT 1969075A IT 1031238 B IT1031238 B IT 1031238B
- Authority
- IT
- Italy
- Prior art keywords
- sco
- memory device
- magnetic memory
- device formed
- thin flexible
- Prior art date
Links
Classifications
-
- 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
- G11B17/022—Positioning or locking of single discs
- G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
- G11B17/032—Positioning by moving the door or the cover
-
- 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
- G11B17/32—Maintaining desired spacing between record carrier and head, e.g. by fluid-dynamic spacing
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US447454A US3879757A (en) | 1974-03-01 | 1974-03-01 | Data storage mechanism having a flexible magnetic disk |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1031238B true IT1031238B (it) | 1979-04-30 |
Family
ID=23776440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT19690/75A IT1031238B (it) | 1974-03-01 | 1975-01-29 | Dispositivo magnetico di memoria formato da un sottile di sco flessibile |
Country Status (7)
Country | Link |
---|---|
US (1) | US3879757A (it) |
JP (1) | JPS5324807B2 (it) |
CA (1) | CA1043010A (it) |
DE (1) | DE2502418C2 (it) |
FR (1) | FR2262847B1 (it) |
GB (1) | GB1466809A (it) |
IT (1) | IT1031238B (it) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4136369A (en) * | 1973-11-23 | 1979-01-23 | Sycor, Inc. | Disc recorder with lead screw drive |
US4001888A (en) * | 1973-11-23 | 1977-01-04 | Sycor, Inc. | Flexible disc recorder construction |
US4012791A (en) * | 1974-10-24 | 1977-03-15 | Pertec Computer Corporation | Disk drive apparatus |
US3975774A (en) * | 1974-12-04 | 1976-08-17 | Sycor, Inc. | Method and apparatus for loading flexible magnetic recording discs to transducing heads |
FR2309012A1 (fr) * | 1975-04-21 | 1976-11-19 | Ibm | Memoire a disque magnetique flexible |
JPS529403A (en) * | 1975-07-14 | 1977-01-25 | Yoshiro Nakamatsu | Bulge recording disc used for electronic computer and so on |
USD245125S (en) * | 1976-06-01 | 1977-07-19 | Chou Albert S | Flexible magnetic disc cartridge |
US4058846A (en) * | 1976-06-21 | 1977-11-15 | International Business Machines Corporation | Grounded transducer for magnetic record disks |
US4151573A (en) * | 1977-06-13 | 1979-04-24 | Tandon Magnetics Corp. | Magnetic recording device for double sided media |
JPS5827409Y2 (ja) * | 1977-10-13 | 1983-06-14 | 日本コロムビア株式会社 | 磁気デイスク記録再生装置 |
JPS5827410Y2 (ja) * | 1977-10-13 | 1983-06-14 | 日本コロムビア株式会社 | 磁気デイスク記録再生装置 |
JPS5460908A (en) * | 1977-10-24 | 1979-05-16 | Mitsubishi Electric Corp | Both side type flexible disc apparatus |
JPS54149813U (it) * | 1978-04-10 | 1979-10-18 | ||
DE2905836C2 (de) * | 1979-02-15 | 1987-05-14 | Peter 8000 München Schlüter | Vorrichtung zur Steuerung des Zugriffs und der Bewegung eines Schreib-Lese-Kopfes |
GB2060979B (en) * | 1979-10-12 | 1983-10-26 | Digital Equipment Corp | Magnetic disc data storage apparatus |
US4308564A (en) * | 1979-11-26 | 1981-12-29 | Xerox Corporation | Head load/unload mechanism for rotating magnetic memories |
GB2093254B (en) * | 1980-12-31 | 1985-07-03 | Sony Corp | Apparatus for driving flexible discs |
US4602306A (en) * | 1981-10-30 | 1986-07-22 | Teac Corporation | Recorder/reproducer apparatus with a disc-shaped record medium |
US4466033A (en) * | 1982-02-24 | 1984-08-14 | Apple Computer, Inc. | Disk drive with automatic disc clamping and ejecting |
US4571645A (en) * | 1982-07-29 | 1986-02-18 | Ixi Laboratories, Inc. | Horizontal flexible disk loading and sorting/collating mechanism |
US4611257A (en) * | 1983-08-18 | 1986-09-09 | Teac Corporation | Vibration controlled data transfer apparatus with a double sided flexible magnetic disk |
JPS6148459U (it) * | 1984-09-03 | 1986-04-01 | ||
JP2566924B2 (ja) * | 1986-07-14 | 1996-12-25 | キヤノン株式会社 | 光磁気記録装置 |
US4928192A (en) * | 1987-12-23 | 1990-05-22 | Konica Corporation | Process for identifying disks and automatically configuring a disk drive system |
US4887176A (en) * | 1988-08-03 | 1989-12-12 | Eastman Kodak Company | Double-sided magnetic recording device supporting two transducers in fixed relation |
JPH02126463A (ja) * | 1988-11-04 | 1990-05-15 | Toshiba Corp | 磁気ディスク装置 |
JP2587162B2 (ja) * | 1992-01-22 | 1997-03-05 | 富士通株式会社 | 磁気ディスク装置のヘッドアーム |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3343133A (en) * | 1963-08-09 | 1967-09-19 | Dirks Gerhard | Data handling system |
US3678481A (en) * | 1970-03-13 | 1972-07-18 | Ibm | Data storage apparatus employing a single magnetic disk |
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 |
-
1974
- 1974-03-01 US US447454A patent/US3879757A/en not_active Expired - Lifetime
-
1975
- 1975-01-10 FR FR7501212A patent/FR2262847B1/fr not_active Expired
- 1975-01-17 CA CA218,276A patent/CA1043010A/en not_active Expired
- 1975-01-22 DE DE2502418A patent/DE2502418C2/de not_active Expired
- 1975-01-29 IT IT19690/75A patent/IT1031238B/it active
- 1975-02-07 JP JP1552475A patent/JPS5324807B2/ja not_active Expired
- 1975-02-17 GB GB655775A patent/GB1466809A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2502418A1 (de) | 1975-09-04 |
DE2502418C2 (de) | 1983-03-31 |
GB1466809A (en) | 1977-03-09 |
FR2262847B1 (it) | 1976-12-31 |
US3879757A (en) | 1975-04-22 |
CA1043010A (en) | 1978-11-21 |
JPS5324807B2 (it) | 1978-07-22 |
FR2262847A1 (it) | 1975-09-26 |
JPS50120807A (it) | 1975-09-22 |
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