DE3231248C2 - - Google Patents
Info
- Publication number
- DE3231248C2 DE3231248C2 DE3231248A DE3231248A DE3231248C2 DE 3231248 C2 DE3231248 C2 DE 3231248C2 DE 3231248 A DE3231248 A DE 3231248A DE 3231248 A DE3231248 A DE 3231248A DE 3231248 C2 DE3231248 C2 DE 3231248C2
- Authority
- DE
- Germany
- Prior art keywords
- track
- data
- servo
- head
- tracking
- 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
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
- 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
- G11B5/58—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 for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/596—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 for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
- G11B5/59633—Servo formatting
Landscapes
- Moving Of The Head To Find And Align With The Track (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56131501A JPS5835769A (ja) | 1981-08-24 | 1981-08-24 | 磁気デイスク装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3231248A1 DE3231248A1 (de) | 1983-03-10 |
DE3231248C2 true DE3231248C2 (US07321065-20080122-C00160.png) | 1987-10-08 |
Family
ID=15059486
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19823231248 Granted DE3231248A1 (de) | 1981-08-24 | 1982-08-23 | Nachlaufservosystem fuer magnetische, flexible magnetplatten verwendende aufzeichnungs- und wiedergabegeraete |
Country Status (3)
Country | Link |
---|---|
US (1) | US4551777A (US07321065-20080122-C00160.png) |
JP (1) | JPS5835769A (US07321065-20080122-C00160.png) |
DE (1) | DE3231248A1 (US07321065-20080122-C00160.png) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4513333A (en) * | 1982-02-24 | 1985-04-23 | Dymek Corporation | Diagnostic recording |
JPS59112406A (ja) * | 1982-12-17 | 1984-06-28 | Sony Corp | Pcm信号の記録再生方法 |
JPS60163214A (ja) * | 1984-02-03 | 1985-08-26 | Canon Electronics Inc | 磁気ヘツド及びその製造方法 |
DE3714986A1 (de) * | 1987-05-06 | 1988-11-17 | Thomson Brandt Gmbh | Recorder mit spurfuehrung |
US5001579A (en) * | 1988-05-27 | 1991-03-19 | Eastman Kodak Company | Method and apparatus for centering a transducer over a recorded track on a rotary storage medium |
US5245487A (en) * | 1989-01-27 | 1993-09-14 | International Business Machines Corporation | Transducer head for rigid disk drive |
US5285331A (en) * | 1989-02-23 | 1994-02-08 | Wangtek Incorporated | System for aligning a read head gap over a track of magnetic data |
US5568331A (en) * | 1989-10-27 | 1996-10-22 | Hitachi, Ltd. | Method of head positioning and magnetic recording disk drive using the same |
US6028731A (en) * | 1996-03-29 | 2000-02-22 | Bond; Charles R. | Method and system for providing servo signals to a magnetic head positioning system of disk drive |
US6025970A (en) * | 1997-08-07 | 2000-02-15 | International Business Machines Corporation | Digital demodulation of a complementary two-frequency servo PES pattern |
US5966264A (en) * | 1997-08-07 | 1999-10-12 | International Business Machines Cororation | Two frequency servo PES pattern |
WO2001001398A1 (fr) * | 1999-06-28 | 2001-01-04 | Matsushita Electric Industrial Co., Ltd. | Dispositif d'enregistrement/reproduction magnetique |
JP2002373411A (ja) | 2001-06-15 | 2002-12-26 | Fuji Photo Film Co Ltd | 磁気記録媒体およびその駆動装置 |
JP2003115177A (ja) * | 2001-10-02 | 2003-04-18 | Mitsumi Electric Co Ltd | フレキシブルディスクドライブ制御方法 |
JP3776797B2 (ja) * | 2001-12-28 | 2006-05-17 | 株式会社東芝 | 磁気記録再生装置 |
US7499235B2 (en) * | 2005-03-18 | 2009-03-03 | Quantum Corporation | Auto-servo tape system and associated recording head |
US7760465B2 (en) | 2005-10-25 | 2010-07-20 | International Business Machines Corporation | Magnetic head having selectively defined reader gap thicknesses |
US7826169B2 (en) | 2007-04-25 | 2010-11-02 | Quantum Corporation | Servo error detection and compensation utilizing virtual data tracking servo methods |
GB2518677A (en) | 2013-09-30 | 2015-04-01 | Ibm | Tape storage medium |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3263031A (en) * | 1962-05-29 | 1966-07-26 | Sperry Rand Corp | High-low frequency homing |
US3292168A (en) * | 1962-08-13 | 1966-12-13 | Sperry Rand Corp | High resolution, head positioner system |
US3491347A (en) * | 1967-03-20 | 1970-01-20 | North American Rockwell | Servo system for positioning transducers at track locations |
US3691543A (en) * | 1971-02-08 | 1972-09-12 | Ibm | Positioning system including servo track configuration and associated demodulator |
JPS5620622B2 (US07321065-20080122-C00160.png) * | 1972-12-14 | 1981-05-14 | ||
CA1067997A (en) * | 1974-07-15 | 1979-12-11 | Jacob De Boer | Servo system for controlling the position of a reading head |
DE2439546A1 (de) * | 1974-08-17 | 1976-02-26 | Basf Ag | Spurlageregelung bei magnetodynamischen speichern sowie magnetogrammtraeger dafuer |
FR2299694A1 (fr) * | 1975-01-31 | 1976-08-27 | Ibm | Dispositif d'acces aux pistes d'un milieu d'enregistrement tel qu'un disque magnetique |
US4007493A (en) * | 1975-05-06 | 1977-02-08 | Burroughs Corporation | Track positioning system for magnetic transducer head |
NL7702815A (nl) * | 1977-03-16 | 1978-09-19 | Philips Nv | Werkwijze voor het regelen van de positie van een schrijf- respektievelijk leeskop en een inrichting voor het uitvoeren van de werkwijze. |
US4164781A (en) * | 1978-04-11 | 1979-08-14 | Decitek | Track servoing system using signals from tunnel erase heads |
JPS5564622A (en) * | 1978-11-06 | 1980-05-15 | Fujitsu Ltd | Magnetic head |
-
1981
- 1981-08-24 JP JP56131501A patent/JPS5835769A/ja active Pending
-
1982
- 1982-08-11 US US06/407,080 patent/US4551777A/en not_active Expired - Fee Related
- 1982-08-23 DE DE19823231248 patent/DE3231248A1/de active Granted
Also Published As
Publication number | Publication date |
---|---|
US4551777A (en) | 1985-11-05 |
DE3231248A1 (de) | 1983-03-10 |
JPS5835769A (ja) | 1983-03-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8125 | Change of the main classification |
Ipc: G11B 21/06 |
|
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |