JP4448491B2 - 同期サンプリング時間基準サーボシステムのための補償器 - Google Patents

同期サンプリング時間基準サーボシステムのための補償器 Download PDF

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Publication number
JP4448491B2
JP4448491B2 JP2005360532A JP2005360532A JP4448491B2 JP 4448491 B2 JP4448491 B2 JP 4448491B2 JP 2005360532 A JP2005360532 A JP 2005360532A JP 2005360532 A JP2005360532 A JP 2005360532A JP 4448491 B2 JP4448491 B2 JP 4448491B2
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JP
Japan
Prior art keywords
tape
tape head
output value
head position
position 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
Application number
JP2005360532A
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English (en)
Japanese (ja)
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JP2006172704A (ja
JP2006172704A5 (https=
Inventor
ナーン・バイ
ランディ・インチ
英司 小倉
和弘 鶴田
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International Business Machines Corp
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International Business Machines Corp
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Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of JP2006172704A publication Critical patent/JP2006172704A/ja
Publication of JP2006172704A5 publication Critical patent/JP2006172704A5/ja
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Publication of JP4448491B2 publication Critical patent/JP4448491B2/ja
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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
    • G11B5/584—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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/675—Guiding containers, e.g. loading, ejecting cassettes
    • G11B15/68—Automatic cassette changing arrangements; automatic tape changing arrangements
    • G11B15/6845—Automatic cassette changing arrangements; automatic tape changing arrangements with rotatable magazine
    • G11B15/687—Automatic cassette changing arrangements; automatic tape changing arrangements with rotatable magazine the cassettes being arranged in multiple levels
    • G11B15/688—Automatic cassette changing arrangements; automatic tape changing arrangements with rotatable magazine the cassettes being arranged in multiple levels the cassettes being transferred to a fixed recorder or player using a moving carriage

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Automatic Tape Cassette Changers (AREA)
  • Feedback Control In General (AREA)
JP2005360532A 2004-12-15 2005-12-14 同期サンプリング時間基準サーボシステムのための補償器 Expired - Fee Related JP4448491B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/012,950 US7110212B2 (en) 2004-12-15 2004-12-15 Compensator for a synchronous sampling time-base servo system

Publications (3)

Publication Number Publication Date
JP2006172704A JP2006172704A (ja) 2006-06-29
JP2006172704A5 JP2006172704A5 (https=) 2009-07-02
JP4448491B2 true JP4448491B2 (ja) 2010-04-07

Family

ID=36583495

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005360532A Expired - Fee Related JP4448491B2 (ja) 2004-12-15 2005-12-14 同期サンプリング時間基準サーボシステムのための補償器

Country Status (3)

Country Link
US (1) US7110212B2 (https=)
JP (1) JP4448491B2 (https=)
CN (1) CN100377073C (https=)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8014879B2 (en) * 2005-11-11 2011-09-06 L&L Engineering, Llc Methods and systems for adaptive control
US7280307B2 (en) * 2006-02-10 2007-10-09 International Business Machines Corporation Track following servo actuator offset calibration for tape drive
US8050800B2 (en) * 2007-10-21 2011-11-01 Ge Intelligent Platforms, Inc. Method and system for meeting end conditions in a motion control system
US7847496B2 (en) * 2008-02-15 2010-12-07 International Business Machines Corporation Dynamic tape drive calibration
US8665552B2 (en) 2010-07-12 2014-03-04 Hewlett-Packard Development Company, L.P. Controlling positions of storage media heads
US8773800B2 (en) * 2010-10-08 2014-07-08 Quantum Corporation Adaptive disturbance compensation with multi-rate synchronized sampling
US9159347B1 (en) * 2014-06-17 2015-10-13 International Business Machines Corporation Usage of state information from state-space based track-follow controller
US9524741B1 (en) * 2015-10-30 2016-12-20 International Business Machines Corporation High-density pattern detector for hybrid servo patterns

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4794472A (en) * 1985-07-30 1988-12-27 Matsushita Electric Industrial Co., Ltd. Video tape reproducing apparatus with a processor that time-shares different operations
US5055951A (en) 1989-03-10 1991-10-08 Irwin Magnetic Systems, Inc. Method and apparatus for servo-positioning movable transducer heads
US5689384A (en) 1994-06-30 1997-11-18 International Business Machines Corporation Timing based servo system for magnetic tape systems
US6201652B1 (en) 1998-05-29 2001-03-13 Stmicroelectronics, Inc. Method and apparatus for reading and writing gray code servo data to magnetic medium using synchronous detection
US6574066B1 (en) 2000-02-17 2003-06-03 Imation Corp. Time-based optical servo system and method
US6356803B1 (en) * 2000-05-19 2002-03-12 International Business Machines Corporation Automated data storage library distributed control system
US6587303B1 (en) * 2000-06-09 2003-07-01 International Business Machines Corporation Servo control of a coarse actuator
US6813112B2 (en) 2001-09-06 2004-11-02 International Business Machines Corporation Method, apparatus and software for tape drive mechanical fault detection

Also Published As

Publication number Publication date
JP2006172704A (ja) 2006-06-29
CN1801333A (zh) 2006-07-12
US7110212B2 (en) 2006-09-19
CN100377073C (zh) 2008-03-26
US20060126214A1 (en) 2006-06-15

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