DE10123069A8 - Servotechnik für ein Grobstellglied - Google Patents
Servotechnik für ein Grobstellglied Download PDFInfo
- Publication number
- DE10123069A8 DE10123069A8 DE10123069A DE10123069A DE10123069A8 DE 10123069 A8 DE10123069 A8 DE 10123069A8 DE 10123069 A DE10123069 A DE 10123069A DE 10123069 A DE10123069 A DE 10123069A DE 10123069 A8 DE10123069 A8 DE 10123069A8
- Authority
- DE
- Germany
- Prior art keywords
- coarse actuator
- servo technology
- servo
- technology
- coarse
- 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.)
- Granted
Links
Classifications
-
- 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
-
- 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
- G11B5/584—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 tapes
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US590673 | 1984-03-19 | ||
US09/590,673 US6587303B1 (en) | 2000-06-09 | 2000-06-09 | Servo control of a coarse actuator |
Publications (3)
Publication Number | Publication Date |
---|---|
DE10123069A1 DE10123069A1 (de) | 2002-03-14 |
DE10123069A8 true DE10123069A8 (de) | 2007-05-31 |
DE10123069B4 DE10123069B4 (de) | 2012-11-22 |
Family
ID=24363204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10123069A Expired - Lifetime DE10123069B4 (de) | 2000-06-09 | 2001-05-11 | Servotechnik für ein Grobstellglied |
Country Status (7)
Country | Link |
---|---|
US (1) | US6587303B1 (de) |
JP (1) | JP3834786B2 (de) |
KR (1) | KR100420545B1 (de) |
CN (1) | CN1257509C (de) |
DE (1) | DE10123069B4 (de) |
MY (1) | MY127261A (de) |
SG (1) | SG100716A1 (de) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001022409A1 (en) * | 1999-09-23 | 2001-03-29 | Seagate Technology Llc | Method and control scheme for compensating the coarse actuators undesired transients in dual stage control systems |
US6721126B1 (en) * | 2000-08-16 | 2004-04-13 | International Business Machines Corporation | Position identification for a coarse actuator portion of a compound actuator |
US6778350B2 (en) * | 2000-10-06 | 2004-08-17 | Seagate Technology Llc | Feed forward control of voice coil motor induced microactuator disturbance |
US6771456B2 (en) * | 2001-05-31 | 2004-08-03 | International Business Machines Corporation | System and method for miniaturization of read/write heads |
JP2005174450A (ja) * | 2003-12-10 | 2005-06-30 | Sony Corp | リニア型テープストレージ用磁気ヘッド装置 |
US7061712B2 (en) * | 2004-11-17 | 2006-06-13 | International Business Machines Corporation | Mono pole piece for a two stage tape drive actuator |
US7265935B2 (en) * | 2004-12-15 | 2007-09-04 | International Business Machines Corporation | Velocity adaptive compensator for a synchronous sampling time-based servo system |
US7110212B2 (en) * | 2004-12-15 | 2006-09-19 | International Business Machines Corporation | Compensator for a synchronous sampling time-base servo system |
US8169736B2 (en) * | 2009-07-17 | 2012-05-01 | International Business Machines Corporation | Method and apparatus to position a head module comprising servo elements and a plurality of data elements |
US8027121B2 (en) * | 2009-11-04 | 2011-09-27 | International Business Machines Corporation | Positioning coarse servo actuator of tape servo system to allow fine servo actuator to follow tape shift excursions |
US8059362B2 (en) * | 2010-03-02 | 2011-11-15 | International Business Machines Corporation | Positioning a coarse actuator of compound actuator tape servo system at midpoint of maximum peaks of lateral tape movement |
US8134797B2 (en) * | 2010-03-03 | 2012-03-13 | International Business Machines Corporation | Application of continuous position error offset signal to acquire servo track |
CN102237101A (zh) * | 2010-05-07 | 2011-11-09 | 中国科学院上海光学精密机械研究所 | 滑模变结构伺服控制器及其伺服控制方法 |
US8526134B2 (en) * | 2011-06-02 | 2013-09-03 | International Business Machines Corporation | System for fast center calibration of a tape drive for a flangeless tape path |
US8611038B2 (en) | 2011-06-02 | 2013-12-17 | International Business Machines Corporation | System, method, and computer program product for servo compensator switching in high vibration environments |
US8760788B2 (en) | 2011-06-02 | 2014-06-24 | International Business Machines Corporation | System and computer program product for fast recovery to a write state |
US8743491B2 (en) | 2012-04-05 | 2014-06-03 | International Business Machines Corporation | Variable stopwrite threshold |
US8743492B2 (en) | 2012-07-20 | 2014-06-03 | International Business Machines Corporation | Variable stopwrite threshold with variable smoothing factor |
US8810939B2 (en) | 2012-08-28 | 2014-08-19 | International Business Machines Corporation | Variable stopwrite threshold using kurtosis |
US11049517B1 (en) * | 2020-04-17 | 2021-06-29 | Western Digital Technologies, Inc. | Data storage device staggering access operations to facilitate concurrent access of two disk surfaces |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5038333A (en) * | 1989-05-05 | 1991-08-06 | International Business Machines Corporation | Positioning systems including reliable track crossing detection for high speed relative motions |
US5060210A (en) * | 1990-09-28 | 1991-10-22 | International Business Machines Corporation | Controlling head seeking speed in disk storage units by limiting displacement of head with respect to its supporting headarm |
US5090002A (en) * | 1989-03-07 | 1992-02-18 | International Business Machines Corporation | Positioning systems employing velocity and position control loops with position control loop having an extended range |
US5379170A (en) * | 1992-04-13 | 1995-01-03 | Minnesota Mining And Manufacturing Company | Dynamically adjustable head positioning mechanism for tape drives |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4627039A (en) * | 1983-12-23 | 1986-12-02 | Magnetic Peripherals Inc. | Head positioning servo system for optical recording with coarse and fine control |
US4864552A (en) * | 1986-08-29 | 1989-09-05 | Laser Magnetic Storage International Company | Driving signal for coarse servo employing sampled offset signal |
US4839876A (en) * | 1987-11-23 | 1989-06-13 | International Business Machines Corporation | Track seeking using a track following loop |
US4935835A (en) * | 1988-11-10 | 1990-06-19 | Insite Peripherals, Inc. | Magnetic media containing reference feature and methods for referencing magnetic head position to the reference feature |
US5117408A (en) * | 1989-09-29 | 1992-05-26 | Seagate Technology, Inc. | Correlation of sectored servo position information |
JPH0594679A (ja) * | 1991-07-22 | 1993-04-16 | Kyocera Corp | トラツクアクセス装置 |
US5235574A (en) * | 1991-11-04 | 1993-08-10 | International Business Machines Corporation | Optical disk drive relative position sensor |
JPH0778891B2 (ja) * | 1991-12-25 | 1995-08-23 | 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 | 光ディスク駆動装置および方法 |
JPH05198111A (ja) * | 1992-01-20 | 1993-08-06 | Fujitsu Ltd | ヘッドの位置決め制御装置 |
US5425013A (en) * | 1993-11-12 | 1995-06-13 | International Business Machines Corporation | Relative position sensing calibration for optical storage device |
JP3693795B2 (ja) * | 1997-10-02 | 2005-09-07 | 富士通株式会社 | 記憶ディスク装置及びその制御方法 |
JP3097847B2 (ja) * | 1998-06-19 | 2000-10-10 | 日本電気株式会社 | 二段アクチュエータによるヘッド位置決め装置 |
CN1357137A (zh) * | 1999-04-21 | 2002-07-03 | 西加特技术有限责任公司 | Pq增强双级伺服控制器 |
US6376964B1 (en) * | 2001-05-16 | 2002-04-23 | Read-Rite Corporation | Collocated rotating flexure microactuator for dual-stage servo in disk drives |
-
2000
- 2000-06-09 US US09/590,673 patent/US6587303B1/en not_active Expired - Lifetime
-
2001
- 2001-05-11 DE DE10123069A patent/DE10123069B4/de not_active Expired - Lifetime
- 2001-05-15 KR KR10-2001-0026372A patent/KR100420545B1/ko not_active IP Right Cessation
- 2001-06-01 SG SG200103267A patent/SG100716A1/en unknown
- 2001-06-06 JP JP2001170742A patent/JP3834786B2/ja not_active Expired - Lifetime
- 2001-06-06 MY MYPI20012652 patent/MY127261A/en unknown
- 2001-06-08 CN CNB011214708A patent/CN1257509C/zh not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5090002A (en) * | 1989-03-07 | 1992-02-18 | International Business Machines Corporation | Positioning systems employing velocity and position control loops with position control loop having an extended range |
US5038333A (en) * | 1989-05-05 | 1991-08-06 | International Business Machines Corporation | Positioning systems including reliable track crossing detection for high speed relative motions |
US5060210A (en) * | 1990-09-28 | 1991-10-22 | International Business Machines Corporation | Controlling head seeking speed in disk storage units by limiting displacement of head with respect to its supporting headarm |
US5379170A (en) * | 1992-04-13 | 1995-01-03 | Minnesota Mining And Manufacturing Company | Dynamically adjustable head positioning mechanism for tape drives |
Also Published As
Publication number | Publication date |
---|---|
DE10123069A1 (de) | 2002-03-14 |
CN1329335A (zh) | 2002-01-02 |
MY127261A (en) | 2006-11-30 |
JP2002015532A (ja) | 2002-01-18 |
KR20010112065A (ko) | 2001-12-20 |
KR100420545B1 (ko) | 2004-03-02 |
SG100716A1 (en) | 2003-12-26 |
JP3834786B2 (ja) | 2006-10-18 |
US6587303B1 (en) | 2003-07-01 |
DE10123069B4 (de) | 2012-11-22 |
CN1257509C (zh) | 2006-05-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: INTERNATIONAL BUSINESS MACHINES CORP., ARMONK,, US |
|
OP8 | Request for examination as to paragraph 44 patent law | ||
8120 | Willingness to grant licences paragraph 23 | ||
8128 | New person/name/address of the agent |
Representative=s name: DUSCHER, R., DIPL.-PHYS. DR.RER.NAT., PAT.-ANW., 7 |
|
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final |
Effective date: 20130223 |
|
R071 | Expiry of right |