DE19882560T1 - Disk drive with a robust tracking servo controller - Google Patents
Disk drive with a robust tracking servo controllerInfo
- Publication number
- DE19882560T1 DE19882560T1 DE19882560T DE19882560T DE19882560T1 DE 19882560 T1 DE19882560 T1 DE 19882560T1 DE 19882560 T DE19882560 T DE 19882560T DE 19882560 T DE19882560 T DE 19882560T DE 19882560 T1 DE19882560 T1 DE 19882560T1
- Authority
- DE
- Germany
- Prior art keywords
- disk drive
- tracking servo
- servo controller
- robust tracking
- robust
- 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.)
- Withdrawn
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
- G11B5/58—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
- G11B5/59605—Circuits
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/02—Driving or moving of heads
- G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
- G11B21/106—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following on disks
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B13/00—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
- G05B13/02—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
- G05B13/04—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators
- G05B13/042—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators in which a parameter or coefficient is automatically adjusted to optimise the performance
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B21/00—Systems involving sampling of the variable controlled
- G05B21/02—Systems involving sampling of the variable controlled electric
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B5/00—Anti-hunting arrangements
- G05B5/01—Anti-hunting arrangements electric
-
- 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
- G11B19/28—Speed controlling, regulating, or indicating
-
- 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
- G11B5/4806—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 specially adapted for disk drive assemblies, e.g. assembly prior to operation, hard or flexible disk drives
-
- 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
- G11B5/5552—Track change, selection or acquisition by displacement of the head across disk tracks using fine positioning means for track acquisition separate from the coarse (e.g. track changing) positioning means
-
- 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
- G11B5/5582—Track change, selection or acquisition by displacement of the head across disk tracks system adaptation for working during or after external perturbation, e.g. in the presence of a mechanical oscillation caused by a shock
-
- 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
- G11B5/59627—Aligning for runout, eccentricity or offset compensation
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2508—Magnetic discs
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- General Physics & Mathematics (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Medical Informatics (AREA)
- Software Systems (AREA)
- Evolutionary Computation (AREA)
- Health & Medical Sciences (AREA)
- Artificial Intelligence (AREA)
- Moving Of The Head To Find And Align With The Track (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Control Of Position Or Direction (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5512697P | 1997-08-07 | 1997-08-07 | |
US2645598A | 1998-02-19 | 1998-02-19 | |
PCT/US1998/009965 WO1999008267A1 (en) | 1997-08-07 | 1998-05-15 | Disc drive with robust track following servo controller |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19882560T1 true DE19882560T1 (en) | 2000-07-20 |
Family
ID=26701271
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19882560T Withdrawn DE19882560T1 (en) | 1997-08-07 | 1998-05-15 | Disk drive with a robust tracking servo controller |
Country Status (6)
Country | Link |
---|---|
JP (1) | JP2001512881A (en) |
KR (1) | KR20010022679A (en) |
CN (1) | CN1266525A (en) |
DE (1) | DE19882560T1 (en) |
GB (1) | GB2341481A (en) |
WO (1) | WO1999008267A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2363512B (en) * | 1999-02-22 | 2003-05-07 | Seagate Technology Llc | Closed-loop scaling for discrete -time servo controller in a disk drive |
JP2003513401A (en) * | 1999-10-28 | 2003-04-08 | シーゲイト テクノロジー エルエルシー | How to Design the Best Vibration Isolation Mount for Disk Drives |
US6999909B1 (en) | 1999-10-28 | 2006-02-14 | Seagate Technology Llc | Process for designing an optimal vibration isolation mount for a disc drive |
US6621653B1 (en) * | 2000-06-09 | 2003-09-16 | Hitachi Global Storage Technologies Netherlands B.V. | Secondary actuator system for mode compensation |
US6947852B2 (en) * | 2002-06-04 | 2005-09-20 | Kla-Tencor Technologies Corporation | Monitoring and correcting for non-translational motion in a resonance measurement apparatus |
CN109991852B (en) * | 2019-04-19 | 2022-02-22 | 贵州大学 | Control method of fractional order electrostatic driving micro-electromechanical system with hysteresis characteristic |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3064336B2 (en) * | 1989-06-28 | 2000-07-12 | 株式会社日立製作所 | Information handling device and disk device |
US5745319A (en) * | 1992-08-12 | 1998-04-28 | Kabushiki Kaisha Toshiba | Recording/reproducing apparatus with coarse and fine head positioning actuators and an elastic head gimbal |
US5444583A (en) * | 1992-09-30 | 1995-08-22 | Quantum Corporation | Disk drive having on-board triggered digital sampling analyzer |
-
1998
- 1998-05-15 KR KR1020007001274A patent/KR20010022679A/en not_active Application Discontinuation
- 1998-05-15 CN CN98808113A patent/CN1266525A/en active Pending
- 1998-05-15 JP JP2000506649A patent/JP2001512881A/en active Pending
- 1998-05-15 GB GB9928819A patent/GB2341481A/en not_active Withdrawn
- 1998-05-15 WO PCT/US1998/009965 patent/WO1999008267A1/en not_active Application Discontinuation
- 1998-05-15 DE DE19882560T patent/DE19882560T1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
JP2001512881A (en) | 2001-08-28 |
CN1266525A (en) | 2000-09-13 |
KR20010022679A (en) | 2001-03-26 |
GB9928819D0 (en) | 2000-02-02 |
GB2341481A (en) | 2000-03-15 |
WO1999008267A1 (en) | 1999-02-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE19882608T1 (en) | Disk drive with constant density servo information | |
DK7596A (en) | Disk drive read / write position control | |
DE69133216D1 (en) | Disk drive control architecture with multiple microcontrollers | |
DE69028186D1 (en) | Disk drive device with tracking servo mechanism | |
DE69520712D1 (en) | Disk drive unit | |
SG93263A1 (en) | Servo system with learning function for achieving servo compensation in a disk drive | |
DE69716438T2 (en) | Disk drive | |
DE10084485T1 (en) | Self-tuning model reference controller in a disk drive | |
EP0717399A3 (en) | Head tracking system in a disk drive | |
DE69625211T2 (en) | DISK DRIVE | |
DE19882560T1 (en) | Disk drive with a robust tracking servo controller | |
DE69824079D1 (en) | Drive with platter | |
DE69709816D1 (en) | Disk drive | |
DE69835094D1 (en) | Optical disk drive with multiple beams | |
DE69631934D1 (en) | Hard disk drive with assembled storage unit | |
DE69619055D1 (en) | Hard disk drive with assembled storage unit | |
DE69811806D1 (en) | Disk drive | |
DE69722321D1 (en) | A disk drive apparatus | |
DE69911149D1 (en) | A disk drive unit | |
DE69811808T2 (en) | Disk drive | |
DE19781778T1 (en) | Disk drive servo system with two-head scanning | |
DE69520716T2 (en) | A disk drive apparatus | |
DE19882321T1 (en) | Micro actuator servo system in a disk drive | |
DE69232468T2 (en) | A magnetic disk drive | |
DE69334052D1 (en) | Disk drive |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8127 | New person/name/address of the applicant |
Owner name: SEAGATE TECHNOLOGY LLC, SCOTTS VALLEY, CALIF., US |
|
8139 | Disposal/non-payment of the annual fee |