WO2009136374A3 - Head design for writing servo patterns on magnetic tape - Google Patents

Head design for writing servo patterns on magnetic tape Download PDF

Info

Publication number
WO2009136374A3
WO2009136374A3 PCT/IB2009/051882 IB2009051882W WO2009136374A3 WO 2009136374 A3 WO2009136374 A3 WO 2009136374A3 IB 2009051882 W IB2009051882 W IB 2009051882W WO 2009136374 A3 WO2009136374 A3 WO 2009136374A3
Authority
WO
WIPO (PCT)
Prior art keywords
servo
servo patterns
magnetic tape
head design
writing servo
Prior art date
Application number
PCT/IB2009/051882
Other languages
French (fr)
Other versions
WO2009136374A2 (en
Inventor
Giovanni Cherubini
Roy D. Cideciyan
Evangelos S. Eleftheriou
Jens Jelitto
Mark A. Lantz
Original Assignee
International Business Machines Corporation
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by International Business Machines Corporation filed Critical International Business Machines Corporation
Priority to EP09742547A priority Critical patent/EP2286407A2/en
Priority to JP2011508043A priority patent/JP5607609B2/en
Priority to CN2009801167447A priority patent/CN102016986B/en
Publication of WO2009136374A2 publication Critical patent/WO2009136374A2/en
Publication of WO2009136374A3 publication Critical patent/WO2009136374A3/en

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48Disposition 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
    • G11B5/58Disposition 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
    • G11B5/584Disposition 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

Abstract

A servo write head is provided and is configured to simultaneously write at least two servo patterns in respective servo bands on linear magnetic tape. Centerlines of the servo patterns are substantially uniformly spaced in the lateral direction. In addition, the servo patterns of all adjacent respective servo bands are displaced relative to each other in a longitudinal direction by an amount that is related to a length of a servo frame and a type of the servo patterns.
PCT/IB2009/051882 2008-05-09 2009-05-07 Head design for writing servo patterns on magnetic tape WO2009136374A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP09742547A EP2286407A2 (en) 2008-05-09 2009-05-07 Head design for writing servo patterns on magnetic tape
JP2011508043A JP5607609B2 (en) 2008-05-09 2009-05-07 Servo control system
CN2009801167447A CN102016986B (en) 2008-05-09 2009-05-07 Head design for writing servo patterns on magnetic tape

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/118,251 2008-05-09
US12/118,251 US7864487B2 (en) 2008-05-09 2008-05-09 Head design for writing servo patterns on magnetic tape

Publications (2)

Publication Number Publication Date
WO2009136374A2 WO2009136374A2 (en) 2009-11-12
WO2009136374A3 true WO2009136374A3 (en) 2009-12-30

Family

ID=41162698

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/051882 WO2009136374A2 (en) 2008-05-09 2009-05-07 Head design for writing servo patterns on magnetic tape

Country Status (6)

Country Link
US (1) US7864487B2 (en)
EP (1) EP2286407A2 (en)
JP (1) JP5607609B2 (en)
KR (1) KR101341770B1 (en)
CN (1) CN102016986B (en)
WO (1) WO2009136374A2 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8446684B2 (en) 2010-01-21 2013-05-21 International Business Machines Corporation Magnetic tape servo format allowing for increased linear tape density and systems thereof
US8760795B2 (en) * 2010-04-30 2014-06-24 International Business Machines Corporation Linear recording tape with a reduced servo band width, and system and method for using the same
US8422162B2 (en) * 2010-07-16 2013-04-16 International Business Machines Corporation Determining a reference waveform used by a correlator in a servo channel
US8804276B2 (en) 2011-06-13 2014-08-12 Imation Corp. Continuous biasing and servowriting of magnetic storage media having perpendicular anisotropy
US8817415B2 (en) 2011-06-13 2014-08-26 Imation Corp. Erasure of magnetic storage media having perpendicular anisotropy
US8767342B2 (en) 2011-06-13 2014-07-01 Imation Corp. Erasure and servowriting of magnetic storage media having perpendicular anistropy
US8797674B2 (en) 2011-06-13 2014-08-05 Imation Corp. Servo mark length matched to write head gap for magnetic storage media
US8576510B2 (en) 2011-10-06 2013-11-05 International Business Machines Corporation Robust metric computation of longitudinal position (LPOS) data symbol detection
WO2013151612A1 (en) 2012-04-04 2013-10-10 Imation Corp. Perpendicular pole head for servo writing magnetic media
US8797681B2 (en) * 2012-04-26 2014-08-05 Imation Corp. Servo write head having plural spaced front blocks coupled by magnetic posts to a back bar
US8643968B2 (en) 2012-04-26 2014-02-04 Imation Corp. Methods and systems for magnetic media servo writing
US8867167B2 (en) 2012-04-26 2014-10-21 Imation Corp. Tapered pole heads for magnetic media
US8760802B2 (en) 2012-04-26 2014-06-24 Imation Corp. Systems and methods for processing magnetic media with first and second magnetic gaps adjacent opposite sides of the recording layer
WO2020090124A1 (en) * 2018-10-29 2020-05-07 ソニー株式会社 Servo pattern recording method, servo pattern recording device, method for manufacturing tape-like magnetic recording medium, and tape-like magnetic recording medium
JP7444115B2 (en) 2021-03-11 2024-03-06 ソニーグループ株式会社 Servo pattern recording method, servo pattern recording device, manufacturing method of tape-shaped magnetic recording medium, tape-shaped magnetic recording medium, and servo write head
US11894027B2 (en) * 2021-09-29 2024-02-06 Fujifilm Corporation Servo pattern recording device, magnetic tape, magnetic tape cartridge, magnetic tape drive, magnetic tape system, detection device, servo pattern recording method, and manufacturing method of magnetic tape
WO2023053567A1 (en) * 2021-09-29 2023-04-06 富士フイルム株式会社 Magnetic tape, magnetic tape cartridge, servo pattern recording device, magnetic tape drive, magnetic tape system, detection device, inspection device, servo pattern recording method, manufacturing method for magnetic tape, detection method, and inspection method
US11908498B2 (en) 2021-09-29 2024-02-20 Fujifilm Corporation Servo pattern recording device, magnetic tape, magnetic tape cartridge, magnetic tape drive, magnetic tape system, detection device, servo pattern recording method, and manufacturing method of magnetic tape

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0940812A2 (en) * 1998-03-04 1999-09-08 Hewlett-Packard Company Absolute longitudinal position encoding in linear tape systems
EP1204096A2 (en) * 2000-10-17 2002-05-08 Hewlett-Packard Company Alignment of tape head
US20030151844A1 (en) * 2002-02-13 2003-08-14 International Business Machines Corporation Timing based servo with fixed distances between transitions
US20050030661A1 (en) * 2003-08-08 2005-02-10 International Business Machines Corporation Identification of laterally positioned servo bands employing differentiating characteristics of servo patterns
EP1600967A2 (en) * 2004-05-24 2005-11-30 Quantum Corporation Servo track having periodic frames of tone field and embedded synchronization marks
US20060066976A1 (en) * 2004-09-27 2006-03-30 Fuji Photo Film Co., Ltd. Apparatus for transporting a magnetic tape

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5689384A (en) 1994-06-30 1997-11-18 International Business Machines Corporation Timing based servo system for magnetic tape systems
US5930065A (en) 1997-05-16 1999-07-27 International Business Machines Corporation Timing based servo longitudinal addressing
US6169640B1 (en) * 1998-03-04 2001-01-02 Hewlett-Packard Co. Servo band identification in linear tape systems having timing based servo formats
US6141174A (en) 1998-08-14 2000-10-31 Quantum Corporation Method of reading recorded information from a magnetic tape that compensates for track pitch changes
US6542325B1 (en) 1999-03-10 2003-04-01 Imation Corp. Time-based servo for magnetic storage media
US6542235B1 (en) 2000-04-28 2003-04-01 Lakeshore Vision & Robotics, L.L.C. System and method of three-dimensional inspection of circular parts
US6580581B1 (en) * 2000-08-16 2003-06-17 International Business Machines Corporation Recovery of lateral position of a servo system with respect to longitudinal servo bands of a magnetic tape
US6781778B1 (en) * 2001-07-16 2004-08-24 Imation Corp. Time-based sectored servo data format
US7206170B2 (en) * 2004-05-19 2007-04-17 Imetion Corp. Thin film servo head apparatus with canted servo gaps
JP4072964B2 (en) * 2004-08-06 2008-04-09 インターナショナル・ビジネス・マシーンズ・コーポレーション Linear data storage tape, separate servo band writing method, servo pattern writer, magnetic tape cartridge, servo tape, to identify transversely arranged servo bands that use servo pattern differentiation characteristics Reader and magnetic tape drive
US20090040643A1 (en) * 2007-07-19 2009-02-12 Quantum Corporation Method and apparatus for writing timing based servo tracks on magnetic tape using complementary servo writer pairs
US7529061B2 (en) * 2008-02-01 2009-05-05 International Business Machines Corporation Tape drive for maintaining lateral position utilizing longitudinally shifted servo pattern with increased sampling rate

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0940812A2 (en) * 1998-03-04 1999-09-08 Hewlett-Packard Company Absolute longitudinal position encoding in linear tape systems
EP1204096A2 (en) * 2000-10-17 2002-05-08 Hewlett-Packard Company Alignment of tape head
US20030151844A1 (en) * 2002-02-13 2003-08-14 International Business Machines Corporation Timing based servo with fixed distances between transitions
US20050030661A1 (en) * 2003-08-08 2005-02-10 International Business Machines Corporation Identification of laterally positioned servo bands employing differentiating characteristics of servo patterns
EP1600967A2 (en) * 2004-05-24 2005-11-30 Quantum Corporation Servo track having periodic frames of tone field and embedded synchronization marks
US20060066976A1 (en) * 2004-09-27 2006-03-30 Fuji Photo Film Co., Ltd. Apparatus for transporting a magnetic tape

Also Published As

Publication number Publication date
EP2286407A2 (en) 2011-02-23
JP5607609B2 (en) 2014-10-15
KR101341770B1 (en) 2013-12-16
CN102016986B (en) 2013-07-24
US7864487B2 (en) 2011-01-04
US20090279202A1 (en) 2009-11-12
WO2009136374A2 (en) 2009-11-12
JP2011523487A (en) 2011-08-11
KR20110016879A (en) 2011-02-18
CN102016986A (en) 2011-04-13

Similar Documents

Publication Publication Date Title
WO2009136374A3 (en) Head design for writing servo patterns on magnetic tape
WO2009126823A3 (en) A polishing system having a track
WO2006132917A3 (en) Distributed servo patterns for data storage media
WO2008149812A1 (en) Vertical magnetic recording medium and vertical magnetic recording medium manufacturing method
WO2014083508A3 (en) Servo pattern of a tape storage medium
SG152144A1 (en) Patterned media with spacings adjusted by a skew function
SG151206A1 (en) Null servo pattern for bit-patterned media
WO2007131204A3 (en) Folding track assemblies
ZA200903561B (en) Optical storage medium comprising tracks with different width, and respective production method
ATE505280T1 (en) INVESTMENT CASTING CORE ARRANGEMENT
GB201211473D0 (en) Magnetic tape medium
WO2008140817A3 (en) Data type encoding for media independent handover
DE602006006842D1 (en) INK RECORDING TEMPLATE FOR INK RADIATION RECORDING
PL2152451T3 (en) A thin cast strip product with microalloy additions, and method for making the same
TWI346327B (en) Magnetic recording medium, method for production thereof
GB201223302D0 (en) Liquid jet head, liquid jet apparatus, and method of manufacturing liquid jet head
BRPI0720099A2 (en) FUEL CELL STACK AND SEALING FOR A FUEL CELL STACK, AS WELL AS THE PRODUCTION PROCESS FOR THE SAME
IL191094A (en) Comparing data representations to stored patterns
JP2012505084A5 (en)
EP2832803A4 (en) Active light-curable inkjet ink composition, method for producing same, inkjet recording method, and printed material
WO2008109849A3 (en) Eyewear and methods of use
DE602006017659D1 (en) INK HEAD RECORDING HEAD, MANUFACTURING METHOD AND COMPOSITION FOR INK HEAD RECORD HEAD
MY172964A (en) Slider with self-assembled monolayer pattern
ZA201008773B (en) Printing carrier consisting of at least two flat partial printing carriers assembled in a coplanar manner,partial printing carriers,and method for the production thereof
GB2484229A (en) Control method and apparatus for a dual-channel weighted LPOS combining scheme

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200980116744.7

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09742547

Country of ref document: EP

Kind code of ref document: A2

ENP Entry into the national phase

Ref document number: 20107024834

Country of ref document: KR

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 2011508043

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2009742547

Country of ref document: EP