DE69417403D1 - Tangentialschräglaufkorrektursystem in einem plattenantriebsystem mit doppelkopfbetätigungsorgan - Google Patents
Tangentialschräglaufkorrektursystem in einem plattenantriebsystem mit doppelkopfbetätigungsorganInfo
- Publication number
- DE69417403D1 DE69417403D1 DE69417403T DE69417403T DE69417403D1 DE 69417403 D1 DE69417403 D1 DE 69417403D1 DE 69417403 T DE69417403 T DE 69417403T DE 69417403 T DE69417403 T DE 69417403T DE 69417403 D1 DE69417403 D1 DE 69417403D1
- Authority
- DE
- Germany
- Prior art keywords
- address mark
- transducer
- disk drive
- sloping
- tangential
- 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
- 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
- G11B5/59616—Synchronisation; Clocking
-
- 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
- G11B5/5569—Track change, selection or acquisition by displacement of the head across disk tracks details of specially adapted mobile parts, e.g. electromechanical control devices
- G11B5/5578—Multiple actuators addressing the same disk, e.g. to improve data rate or access rate
Landscapes
- Moving Of The Head To Find And Align With The Track (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Supporting Of Heads In Record-Carrier Devices (AREA)
- Optical Recording Or Reproduction (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US758593A | 1993-01-22 | 1993-01-22 | |
PCT/US1994/000712 WO1994017520A1 (en) | 1993-01-22 | 1994-01-18 | System for correcting transducer tangential skew in a dual actuator disk drive system |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69417403D1 true DE69417403D1 (de) | 1999-04-29 |
DE69417403T2 DE69417403T2 (de) | 1999-08-19 |
Family
ID=21727036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69417403T Expired - Fee Related DE69417403T2 (de) | 1993-01-22 | 1994-01-18 | Tangentialschräglaufkorrektursystem in einem plattenantriebsystem mit doppelkopfbetätigungsorgan |
Country Status (7)
Country | Link |
---|---|
US (1) | US5523901A (de) |
EP (1) | EP0685102B1 (de) |
JP (1) | JPH08505976A (de) |
AT (1) | ATE178156T1 (de) |
DE (1) | DE69417403T2 (de) |
HK (1) | HK1008366A1 (de) |
WO (1) | WO1994017520A1 (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2986089B2 (ja) * | 1995-12-25 | 1999-12-06 | インターナショナル・ビジネス・マシーンズ・コーポレイション | デイスク装置およびデイスク装置におけるヘッド切り換え方法 |
US5901010A (en) * | 1997-02-07 | 1999-05-04 | Cirrus Logic, Inc. | Magnetic disc recording system employing two stage actuators for simultaneous accesses through multiple recording heads |
US6577463B1 (en) * | 2000-04-27 | 2003-06-10 | International Business Machines Corporation | Tangential misalignment precompensation in a direct access storage device |
US6519109B1 (en) | 2000-07-21 | 2003-02-11 | International Business Machines Corporation | Method and apparatus for providing feedforward control of two interacting actuators |
US7324301B2 (en) * | 2004-05-03 | 2008-01-29 | Advanced Data Solutions Corp. | Striping data simultaneously across multiple platter surfaces |
US7430091B2 (en) * | 2005-10-21 | 2008-09-30 | Microsoft Corporation | Method and apparatus for improving the performance of a disk drive |
US9142246B1 (en) | 2014-10-10 | 2015-09-22 | Seagate Technology Llc | Apparatus and methods to reduce hard disk drive manufacturing test time |
US9361919B1 (en) | 2014-10-10 | 2016-06-07 | Seagate Technology Llc | Disk drive with parallel head actuation |
US9911442B1 (en) | 2016-11-23 | 2018-03-06 | Seagate Technology Llc | Feedforward compensation for multi-actuator hard drives |
US10431246B2 (en) | 2016-12-15 | 2019-10-01 | Seagate Technology Llc | Dual actuator storage device utilizing multiple disk zones |
US10446180B1 (en) | 2018-03-21 | 2019-10-15 | Seagate Technology Llc | Multi-actuator interconnector |
US10366726B1 (en) | 2018-03-29 | 2019-07-30 | Seagate Technology Llc | Interlaced magnetic recording in with multiple independent-actuators having respective independent heads |
US10510373B1 (en) | 2018-03-29 | 2019-12-17 | Seagate Technology Llc | Multiple-actuator drive with separate, radially-defined, zones having reduced skew and/or different track properties |
US10255943B1 (en) | 2018-05-17 | 2019-04-09 | Seagate Technology Llc | Independent head, dual reader control logic |
US10482911B1 (en) | 2018-08-13 | 2019-11-19 | Seagate Technology Llc | Multiple-actuator drive that provides duplication using multiple volumes |
US10803893B1 (en) | 2019-06-03 | 2020-10-13 | Seagate Technology Llc | Data transfer scheduling for fairness and balance |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0766639B2 (ja) * | 1986-05-27 | 1995-07-19 | 富士電機株式会社 | デイスク記憶装置のヘツド位置制御方式 |
JP2777630B2 (ja) * | 1989-04-07 | 1998-07-23 | 株式会社日立製作所 | 磁気ディスク装置 |
US5223993A (en) * | 1989-11-03 | 1993-06-29 | Conner Peripherals, Inc. | Multiple actuator disk drive |
US5241433A (en) * | 1990-04-17 | 1993-08-31 | International Business Machines Corporation | Disk drive servo control |
US5261058A (en) * | 1990-11-09 | 1993-11-09 | Conner Peripherals, Inc. | Multiple microcontroller hard disk drive control architecture |
-
1994
- 1994-01-18 WO PCT/US1994/000712 patent/WO1994017520A1/en active IP Right Grant
- 1994-01-18 AT AT94908613T patent/ATE178156T1/de not_active IP Right Cessation
- 1994-01-18 DE DE69417403T patent/DE69417403T2/de not_active Expired - Fee Related
- 1994-01-18 JP JP6517177A patent/JPH08505976A/ja active Pending
- 1994-01-18 EP EP94908613A patent/EP0685102B1/de not_active Expired - Lifetime
- 1994-08-08 US US08/287,462 patent/US5523901A/en not_active Expired - Fee Related
-
1998
- 1998-07-14 HK HK98109140A patent/HK1008366A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US5523901A (en) | 1996-06-04 |
ATE178156T1 (de) | 1999-04-15 |
JPH08505976A (ja) | 1996-06-25 |
HK1008366A1 (en) | 1999-05-07 |
EP0685102A1 (de) | 1995-12-06 |
WO1994017520A1 (en) | 1994-08-04 |
EP0685102B1 (de) | 1999-03-24 |
DE69417403T2 (de) | 1999-08-19 |
EP0685102A4 (de) | 1996-01-31 |
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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: SEAGATE TECHNOLOGY LLC, SCOTTS VALLEY, CALIF., US |
|
8339 | Ceased/non-payment of the annual fee |