WO2014083508A3 - Servo pattern of a tape storage medium - Google Patents

Servo pattern of a tape storage medium Download PDF

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Publication number
WO2014083508A3
WO2014083508A3 PCT/IB2013/060436 IB2013060436W WO2014083508A3 WO 2014083508 A3 WO2014083508 A3 WO 2014083508A3 IB 2013060436 W IB2013060436 W IB 2013060436W WO 2014083508 A3 WO2014083508 A3 WO 2014083508A3
Authority
WO
WIPO (PCT)
Prior art keywords
servo
storage medium
tape storage
longitudinal extension
subband
Prior art date
Application number
PCT/IB2013/060436
Other languages
French (fr)
Other versions
WO2014083508A2 (en
Inventor
Giovanni Cherubini
Johan B. C. ENGELEN
Simeon Furrer
Jens Jelitto
Mark Alfred Lantz
Original Assignee
International Business Machines Corporation
Ibm Research Gmbh
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, Ibm Research Gmbh filed Critical International Business Machines Corporation
Priority to US14/646,084 priority Critical patent/US9251827B2/en
Priority to JP2015544588A priority patent/JP6270864B2/en
Priority to GB1510786.5A priority patent/GB2523059A/en
Publication of WO2014083508A2 publication Critical patent/WO2014083508A2/en
Publication of WO2014083508A3 publication Critical patent/WO2014083508A3/en

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
    • G11B5/584—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

Abstract

A tape storage medium comprises at least one servo band (SB) along a longitudinal extension (x) of the tape storage medium (TP) for supporting to determine positional information. The servo band (SB) comprises a first servo subband (SB1) extending along the longitudinal extension (x) of the tape storage medium (1) and a second servo subband (SB2) extending along the longitudinal extension (x) of the tape storage medium (TP) next to the first servo subband (SB1). The first servo subband (SB1) comprises a frame servo pattern containing a set of servo frames (FR), wherein each servo frame (FR) of the set comprises a first burst (A) comprising at least two servo stripes (SP1) inclined at a first angle ( α) with respect to a direction orthogonal to the longitudinal extension (x) of the tape medium (TP), followed by a second burst (B) comprising at least two servo stripes (SP2) inclined at a second angle (β) with respect to the direction orthogonal to the longitudinal extension (x) of the tape medium (TP), which second angle (α) is different from the first angle (β). The second servo subband (SB2) contains a set of servo tracks (STx) extending along the longitudinal extension (x) of the tape storage medium (TP) and arranged next to each other, wherein each servo track (STx) of the set contains a servo pattern of magnetic transitions representing a waveform when being read, and wherein the waveforms of adjacent servo tracks (STx) are orthogonal to each other.
PCT/IB2013/060436 2012-11-30 2013-11-27 Servo pattern of a tape storage medium WO2014083508A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US14/646,084 US9251827B2 (en) 2012-11-30 2013-11-27 Servo pattern of a tape storage medium
JP2015544588A JP6270864B2 (en) 2012-11-30 2013-11-27 Tape storage medium including servo band, tape drive, method of operating tape drive, and program
GB1510786.5A GB2523059A (en) 2012-11-30 2013-11-27 Servo pattern of a tape storage medium

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1221556.2 2012-11-30
GB1221556.2A GB2508388A (en) 2012-11-30 2012-11-30 Tape servo pattern

Publications (2)

Publication Number Publication Date
WO2014083508A2 WO2014083508A2 (en) 2014-06-05
WO2014083508A3 true WO2014083508A3 (en) 2014-07-24

Family

ID=49998622

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2013/060436 WO2014083508A2 (en) 2012-11-30 2013-11-27 Servo pattern of a tape storage medium

Country Status (4)

Country Link
US (1) US9251827B2 (en)
JP (1) JP6270864B2 (en)
GB (2) GB2508388A (en)
WO (1) WO2014083508A2 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2508388A (en) 2012-11-30 2014-06-04 Ibm Tape servo pattern
GB2525669A (en) * 2014-05-02 2015-11-04 Ibm Magnetic tape storage medium
US10141016B2 (en) 2017-02-22 2018-11-27 International Business Machines Corporation Balanced delay and resolution for timing based servo systems
US10102873B2 (en) 2017-02-22 2018-10-16 International Business Machines Corporation Balanced delay and resolution for high density servo systems
US10026428B1 (en) 2017-03-16 2018-07-17 International Business Machines Corporation Calibration of high-density servo pattern detector parameters
US9997184B1 (en) * 2017-11-09 2018-06-12 International Business Machines Corporation Hybrid servo pattern configurations for magnetic tape
JP6817981B2 (en) * 2018-03-13 2021-01-20 富士フイルム株式会社 Magnetic tape, magnetic tape manufacturing method, magnetic tape manufacturing equipment, and recording / playback system
US10923143B2 (en) * 2018-05-10 2021-02-16 Quantum Lto Holdings, Llc Magnetic tape device capable of determining the vertical position of magnetic head based on pattern combinations comprising servo band identifiers
JP7278910B2 (en) 2019-09-04 2023-05-22 富士フイルム株式会社 Recording/playback device and recording/playback method
US11295773B1 (en) * 2020-10-01 2022-04-05 Western Digital Technologies, Inc. Data storage device demodulating digital data based on number of servo stripes in servo frame
US11145323B1 (en) * 2020-11-30 2021-10-12 International Business Machines Corporation Accurate skew determination for magnetic tapes experiencing the effects of tape dimensional instability
JP2023009479A (en) * 2021-07-07 2023-01-20 富士通株式会社 Storage control device and storage control method
US11605399B2 (en) 2021-07-27 2023-03-14 Quantum Corporation High-precision servo system for advanced magnetic tape storage system
JP2023067269A (en) * 2021-10-29 2023-05-16 富士フイルム株式会社 Detection device, inspection device, magnetic tape drive, magnetic tape system, detection method, inspection method, and program
JP2023095584A (en) * 2021-12-24 2023-07-06 富士フイルム株式会社 Detection device, inspection device, magnetic tape cartridge, magnetic tape, magnetic tape drive, magnetic tape system, detection method, inspection method, and program
JP2023147010A (en) * 2022-03-29 2023-10-12 富士フイルム株式会社 Magnetic head, magnetic tape, magnetic tape cartridge, magnetic tape drive, and magnetic tape reading method

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US20070047131A1 (en) * 2005-08-30 2007-03-01 International Business Machines Corporation System and method for deconvolution of multiple data tracks
US20080049356A1 (en) * 2006-08-23 2008-02-28 Imation Corp. Servo pattern with encoded data
US20090316296A1 (en) * 2008-06-18 2009-12-24 Giovanni Cherubini Servo control in tape drives

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US6961203B1 (en) 2001-03-06 2005-11-01 Maxtor Corporation Hybrid printed servo patterns for magnetic media and hard disk systems implementing same
US6873487B2 (en) * 2001-11-26 2005-03-29 Imation Corp. Hybrid servopositioning systems
JP2003173508A (en) * 2001-12-07 2003-06-20 Fuji Photo Film Co Ltd Two-stage tracking servo system
JP2005166163A (en) * 2003-12-02 2005-06-23 Fuji Photo Film Co Ltd Magnetic tape, magnetic tape cartridge, magnetic tape drive, and method for recording data to magnetic tape
JP2005166164A (en) * 2003-12-02 2005-06-23 Fuji Photo Film Co Ltd Optical tape, optical tape cartridge, optical tape drive, and method for recording data to optical tape
US6995938B2 (en) * 2004-05-06 2006-02-07 Hitachi Global Storage Technologies Netherlands B.V. Data recording system with servo pattern having pseudo-noise sequences
US6975471B2 (en) * 2004-05-13 2005-12-13 Hitachi Global Storage Technologies Netherlands B.V. Data recording medium with servo pattern having pseudo-random binary sequences
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JP2009104746A (en) * 2007-10-25 2009-05-14 Tdk Corp Burst interval measuring device, burst interval measurement method, drive apparatus, servo pattern writing device, and magnetic tape testing apparatus
US7742254B2 (en) 2008-01-03 2010-06-22 International Business Machines Corporation Servo channel for tape drive systems
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
US9142224B2 (en) * 2008-10-24 2015-09-22 Hewlett-Packard Development Company, L.P. Magnetic-tape drive and magnetic-tape head compatible with multiple tape formats
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GB2508388A (en) 2012-11-30 2014-06-04 Ibm Tape servo pattern

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070047131A1 (en) * 2005-08-30 2007-03-01 International Business Machines Corporation System and method for deconvolution of multiple data tracks
US20080049356A1 (en) * 2006-08-23 2008-02-28 Imation Corp. Servo pattern with encoded data
US20090316296A1 (en) * 2008-06-18 2009-12-24 Giovanni Cherubini Servo control in tape drives

Also Published As

Publication number Publication date
WO2014083508A2 (en) 2014-06-05
GB2508388A (en) 2014-06-04
JP2016506008A (en) 2016-02-25
JP6270864B2 (en) 2018-01-31
GB201510786D0 (en) 2015-08-05
US9251827B2 (en) 2016-02-02
US20150318006A1 (en) 2015-11-05
GB2523059A (en) 2015-08-12

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