JPWO2023153024A1 - - Google Patents

Info

Publication number
JPWO2023153024A1
JPWO2023153024A1 JP2023580071A JP2023580071A JPWO2023153024A1 JP WO2023153024 A1 JPWO2023153024 A1 JP WO2023153024A1 JP 2023580071 A JP2023580071 A JP 2023580071A JP 2023580071 A JP2023580071 A JP 2023580071A JP WO2023153024 A1 JPWO2023153024 A1 JP WO2023153024A1
Authority
JP
Japan
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.)
Pending
Application number
JP2023580071A
Other languages
Japanese (ja)
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 filed Critical
Publication of JPWO2023153024A1 publication Critical patent/JPWO2023153024A1/ja
Pending legal-status Critical Current

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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/78—Tape carriers
    • 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track
    • 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track
    • G11B5/295—Manufacture
    • 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • 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
    • 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
    • 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
    • G11B5/588—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 by controlling the position of the rotating heads
    • G11B5/592—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 by controlling the position of the rotating heads using bimorph elements supporting the heads
    • G11B5/5921—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 by controlling the position of the rotating heads using bimorph elements supporting the heads using auxiliary signals, e.g. pilot signals
    • G11B5/5926—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 by controlling the position of the rotating heads using bimorph elements supporting the heads using auxiliary signals, e.g. pilot signals recorded in separate tracks, e.g. servo tracks
    • G11B5/5928—Longitudinal tracks
    • 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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70626—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances
    • G11B5/70642—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material containing non-metallic substances iron oxides
    • G11B5/70678—Ferrites
    • 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
JP2023580071A 2022-02-14 2022-10-19 Pending JPWO2023153024A1 (https=)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2022020837 2022-02-14
JP2022117550 2022-07-22
PCT/JP2022/038907 WO2023153024A1 (ja) 2022-02-14 2022-10-19 サーボ記録装置、サーボライトヘッド、磁気テープの製造方法及び磁気テープ

Publications (1)

Publication Number Publication Date
JPWO2023153024A1 true JPWO2023153024A1 (https=) 2023-08-17

Family

ID=87564045

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2023580071A Pending JPWO2023153024A1 (https=) 2022-02-14 2022-10-19

Country Status (3)

Country Link
US (1) US20250095678A1 (https=)
JP (1) JPWO2023153024A1 (https=)
WO (1) WO2023153024A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025187093A1 (ja) * 2024-03-07 2025-09-12 ソニーグループ株式会社 磁気記録媒体及びテープカートリッジ
WO2025243789A1 (ja) * 2024-05-23 2025-11-27 ソニーグループ株式会社 サーボライトヘッド、サーボパターン記録装置、磁気テープの製造方法及びサーボパターンの記録方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003168269A (ja) * 2001-11-29 2003-06-13 Fuji Photo Film Co Ltd サーボ制御方法
JP2005327386A (ja) * 2004-05-14 2005-11-24 Fuji Photo Film Co Ltd 磁気記録媒体、サーボ信号書込ヘッドユニット及びサーボライタ
JP2010182411A (ja) * 2010-03-26 2010-08-19 Sony Corp 磁気テープ及びサーボパターン記録装置
JP2011192341A (ja) * 2010-03-12 2011-09-29 Fujifilm Corp サーボライトヘッドおよびその製造方法ならびにサーボライタおよびサーボ信号が書き込まれた磁気テープの製造方法
US20150356993A1 (en) * 2012-06-28 2015-12-10 International Business Machines Corporation Magnetic tape medium with magnetically encoded servo band bursts

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5928827U (ja) * 1982-08-13 1984-02-22 日本ビクター株式会社 磁気ヘツドのアジマス調整機構
US5982711A (en) * 1997-06-05 1999-11-09 Hewlett-Packard Co. Device for reading data from or writing data to magnetic storage media and a method of positioning a tape head relative to the magnetic storage media
US7466510B2 (en) * 2005-06-03 2008-12-16 Imation Corp. Distributed servo patterns for data storage media
JP2009151851A (ja) * 2007-12-19 2009-07-09 Sony Corp 磁気テープ、磁気テープ装置、サーボパターン記録装置、磁気テープの製造方法及び記録方法
US9019653B2 (en) * 2013-08-12 2015-04-28 International Business Machines Corporation High density timing based servo format for use with tilted transducer arrays
US10366716B1 (en) * 2018-07-24 2019-07-30 International Business Machines Corporation Characterization of nonlinearity in servo patterns
US11138996B1 (en) * 2020-05-08 2021-10-05 Western Digital Technologies, Inc. Data storage device employing embedded servo sectors for magnetic tape
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003168269A (ja) * 2001-11-29 2003-06-13 Fuji Photo Film Co Ltd サーボ制御方法
JP2005327386A (ja) * 2004-05-14 2005-11-24 Fuji Photo Film Co Ltd 磁気記録媒体、サーボ信号書込ヘッドユニット及びサーボライタ
JP2011192341A (ja) * 2010-03-12 2011-09-29 Fujifilm Corp サーボライトヘッドおよびその製造方法ならびにサーボライタおよびサーボ信号が書き込まれた磁気テープの製造方法
JP2010182411A (ja) * 2010-03-26 2010-08-19 Sony Corp 磁気テープ及びサーボパターン記録装置
US20150356993A1 (en) * 2012-06-28 2015-12-10 International Business Machines Corporation Magnetic tape medium with magnetically encoded servo band bursts

Also Published As

Publication number Publication date
US20250095678A1 (en) 2025-03-20
WO2023153024A1 (ja) 2023-08-17

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