DE69127086T2 - Servosignalenaufzeichnungsmethode für Magnetplatteneinheit, und Magnetplatteneinheit - Google Patents
Servosignalenaufzeichnungsmethode für Magnetplatteneinheit, und MagnetplatteneinheitInfo
- Publication number
- DE69127086T2 DE69127086T2 DE69127086T DE69127086T DE69127086T2 DE 69127086 T2 DE69127086 T2 DE 69127086T2 DE 69127086 T DE69127086 T DE 69127086T DE 69127086 T DE69127086 T DE 69127086T DE 69127086 T2 DE69127086 T2 DE 69127086T2
- Authority
- DE
- Germany
- Prior art keywords
- magnetic disk
- disk unit
- recording method
- signal recording
- servo signal
- 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
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/12—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules
- G11B33/121—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules the apparatus comprising a single recording/reproducing device
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
- G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
-
- 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
- G11B33/10—Indicating arrangements; Warning arrangements
-
- 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
-
- 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
- G11B5/59677—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 with optical servo tracking
-
- 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
- G11B5/59683—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 for magnetoresistive heads
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP91311594A EP0546227B1 (de) | 1991-12-12 | 1991-12-12 | Servosignalenaufzeichnungsmethode für Magnetplatteneinheit, und Magnetplatteneinheit |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69127086D1 DE69127086D1 (de) | 1997-09-04 |
DE69127086T2 true DE69127086T2 (de) | 1998-02-12 |
Family
ID=8208505
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69127086T Expired - Fee Related DE69127086T2 (de) | 1991-12-12 | 1991-12-12 | Servosignalenaufzeichnungsmethode für Magnetplatteneinheit, und Magnetplatteneinheit |
Country Status (3)
Country | Link |
---|---|
US (1) | US5339204A (de) |
EP (1) | EP0546227B1 (de) |
DE (1) | DE69127086T2 (de) |
Families Citing this family (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5485322A (en) * | 1993-03-08 | 1996-01-16 | International Business Machines Corporation | Method and system for writing a clock track on a storage medium |
JPH0737344A (ja) * | 1993-07-21 | 1995-02-07 | Hitachi Ltd | サーボ信号書き込み方法、磁気ディスク装置及び磁気ディスク |
TW256914B (en) * | 1994-05-27 | 1995-09-11 | Ibm | Servo-writing system for use in a data recording disk drive |
JP3493750B2 (ja) * | 1994-10-06 | 2004-02-03 | 株式会社日立製作所 | 磁気ディスク装置 |
EP0959460B1 (de) * | 1995-03-13 | 2002-02-20 | International Business Machines Corporation | Verfahren und System zum Schreiben eines Zeitmusters auf ein Speichermedium |
US5796541A (en) * | 1995-11-21 | 1998-08-18 | Guzik Technical Enterprises, Inc. | Servo track writing measurement of gapped initial clock track to write full clock track |
US5936790A (en) * | 1996-09-03 | 1999-08-10 | Maxtor Corporation | Servo sector allocation for high sampling rate |
GB9700117D0 (en) | 1997-01-06 | 1997-02-26 | Havant International Ltd | Method and apparatus for writing a clock track on a storage medium |
US5991112A (en) * | 1997-03-04 | 1999-11-23 | Excel Precision | Non-contact servotrack writing with phase sensitive detection |
US6356401B1 (en) * | 1997-07-22 | 2002-03-12 | Seagate Technology Llc | Method and apparatus for forming accurate optical clock patterns |
US5991249A (en) * | 1997-07-29 | 1999-11-23 | Hoetron, Inc. | Optical track sensing device |
US6188484B1 (en) | 1998-10-29 | 2001-02-13 | Maxtor Corporation | Method and apparatus for measuring angular displacement of an actuator arm relative to a reference position |
US6587293B1 (en) | 1999-05-07 | 2003-07-01 | Seagate Technology Llc | Method for servo writing servo pattern at a desired speed |
US6310740B1 (en) | 1999-06-29 | 2001-10-30 | Western Digital Technologies, Inc | Disk drive including N-current preamplifier for generating N-independently controlled write currents |
US6519107B1 (en) | 1999-09-24 | 2003-02-11 | Maxtor Corporation | Hard disk drive having self-written servo burst patterns |
US6970400B1 (en) * | 1999-09-27 | 2005-11-29 | Hitachi Maxell, Ltd. | Information recording medium with magnetic marks, recording and reproducing apparatus therefor, and head positioning method using detected magnetic leakage fields from the magnetic marks |
US6751044B1 (en) * | 1999-10-29 | 2004-06-15 | Maxtor Corporation | Method and apparatus for reading a clock track with a magneto-optical clock head using the transverse Kerr effect |
US6525892B1 (en) | 2000-01-28 | 2003-02-25 | Western Digital Technologies, Inc. | Method of calibrating a write current-setting for servo writing a disk drive |
US6798610B1 (en) * | 2000-04-24 | 2004-09-28 | Maxtor Corporation | Disk drive with self servo writing capability |
US6493176B1 (en) * | 2000-04-24 | 2002-12-10 | Maxtor Corporation | Disk drive with variable TPI servo tracks |
US6785073B2 (en) | 2000-06-14 | 2004-08-31 | Seagate Technology Llc | Identification and cancellation of cage frequency in a hard disc drive |
US6721120B2 (en) | 2000-06-20 | 2004-04-13 | Seagate Technology Llc | Prediction and cancellation of cage frequency in a disc drive |
US6778348B1 (en) | 2000-08-25 | 2004-08-17 | Ic Mechanics, Inc. | Accelerometer-assisted servo writing for disk drives |
US6914405B2 (en) * | 2000-09-19 | 2005-07-05 | Microe Systems Corp. | Interface component for a positioning system and method for designing an interface component |
US6760186B1 (en) * | 2000-11-30 | 2004-07-06 | Western Digital Technologies, Inc. | Disk drive having first-written servo wedge marked and method for forming marked servo wedges |
US6961203B1 (en) | 2001-03-06 | 2005-11-01 | Maxtor Corporation | Hybrid printed servo patterns for magnetic media and hard disk systems implementing same |
US6791784B2 (en) * | 2001-03-23 | 2004-09-14 | Imation Corp. | Diffraction-based monitoring of a patterned magnetic recording medium |
US6735032B2 (en) * | 2001-04-16 | 2004-05-11 | International Business Machines, Inc. | Servo write timing generation in a multi-actuator disk drive |
US6775088B2 (en) | 2001-06-01 | 2004-08-10 | Seagate Technology Llc | Vertically-oriented servo track writer and method |
US6723980B2 (en) | 2001-07-16 | 2004-04-20 | Wai-Hon Lee | Position sensor with grating to detect moving object with periodic pattern |
JP3784678B2 (ja) * | 2001-08-30 | 2006-06-14 | 株式会社日立グローバルストレージテクノロジーズ | 磁気ディスク装置およびそのサーボ信号記録方法 |
US6882497B2 (en) | 2001-09-24 | 2005-04-19 | Seagate Technology Llc | Track closure error cancellation for a disc drive |
US7882616B1 (en) | 2004-09-02 | 2011-02-08 | Seagate Technology Llc | Manufacturing single-sided storage media |
US7440224B2 (en) * | 2006-01-23 | 2008-10-21 | Toshiba Corporation | Disk drive servo |
US7721049B2 (en) * | 2006-03-27 | 2010-05-18 | Kabuhsiki Kaisha Toshiba | Disk drive write method |
US7468859B2 (en) * | 2006-05-31 | 2008-12-23 | Kabushiki Kaisha Toshiba | Voice coil motor effective resistance determination |
US20070279781A1 (en) * | 2006-05-31 | 2007-12-06 | Toshiba America Information Systems, Inc. | Channel training method and apparatus |
US20070279790A1 (en) * | 2006-05-31 | 2007-12-06 | Tanner Brian K | Adjustable output voltage regulator for disk drive |
US7453660B2 (en) * | 2006-05-31 | 2008-11-18 | Kabushiki Kaisha Toshiba | Shock feed forward adaptive filters |
US20070279788A1 (en) * | 2006-05-31 | 2007-12-06 | Toshiba America Information Systems, Inc. | Method and apparatus to perform defect scanning |
US20070279782A1 (en) * | 2006-05-31 | 2007-12-06 | Rydhan Abdul R | Method and apparatus for determining offset between read and write transducers in a disk drive |
US7457066B2 (en) * | 2006-05-31 | 2008-11-25 | Kabushiki Kiasha Toshiba | Method and apparatus for phase-shift null-burst-pattern |
US7436616B2 (en) * | 2006-05-31 | 2008-10-14 | Toshiba Corporation | Current pulsing for unloading |
US8270118B1 (en) | 2009-10-30 | 2012-09-18 | Western Digital Technologies, Inc. | Head stack assembly cartridge |
US8218256B1 (en) * | 2009-10-30 | 2012-07-10 | Western Digital Technologies, Inc. | Disk spindle assembly cartridge |
US20110292546A1 (en) * | 2010-05-25 | 2011-12-01 | Seagate Technology Llc | Timing track for master template substrate |
US8619528B2 (en) * | 2011-08-31 | 2013-12-31 | Seagate Technology Llc | Method and system for optical calibration |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4068268A (en) * | 1976-01-08 | 1978-01-10 | Idemoto Tom Y | Method and apparatus for writing servo-tracks on rotating magnetic memory surfaces |
US4131920A (en) * | 1977-10-19 | 1978-12-26 | Pioneer Magnetics | Closed-clock writing system for a rotating magnetic memory |
US4516177A (en) * | 1982-09-27 | 1985-05-07 | Quantum Corporation | Rotating rigid disk data storage device |
US4531167A (en) * | 1983-08-25 | 1985-07-23 | Pioneer Research, Inc. | Servowriter system for magnetic disc drives |
US4783705A (en) * | 1986-02-27 | 1988-11-08 | Quantum Corporation | High capacity disk file with embedded sector servo and SCSI interface |
US5243479A (en) * | 1986-10-22 | 1993-09-07 | Hitachi Ltd. | Mounting structure for information recording and reproducing apparatus |
US4843494A (en) * | 1987-10-15 | 1989-06-27 | Polaroid Corporation | Data storage apparatus using optical servo tracks |
JPH01208777A (ja) * | 1988-02-03 | 1989-08-22 | Internatl Business Mach Corp <Ibm> | デイスク装置のサーボ・パターンの書込み方法 |
US4980783A (en) * | 1989-03-29 | 1990-12-25 | Seagate Technology, Inc. | Apparatus for automatically applying servo track data to a selected servo surface of a hard disk within a hard disk assembly |
-
1991
- 1991-12-12 DE DE69127086T patent/DE69127086T2/de not_active Expired - Fee Related
- 1991-12-12 EP EP91311594A patent/EP0546227B1/de not_active Expired - Lifetime
-
1992
- 1992-12-11 US US07/989,409 patent/US5339204A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0546227A1 (de) | 1993-06-16 |
DE69127086D1 (de) | 1997-09-04 |
EP0546227B1 (de) | 1997-07-30 |
US5339204A (en) | 1994-08-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B. Owner name: IBM UNITED KINGDOM LTD., PORTSMOUTH, HAMPSHIRE, GB |
|
8339 | Ceased/non-payment of the annual fee |