DE69024591D1 - Medium mit hoher Spurdichte und optischen vertieften Servospuren und Methode zum Stanzen der Spuren auf das Medium - Google Patents

Medium mit hoher Spurdichte und optischen vertieften Servospuren und Methode zum Stanzen der Spuren auf das Medium

Info

Publication number
DE69024591D1
DE69024591D1 DE69024591T DE69024591T DE69024591D1 DE 69024591 D1 DE69024591 D1 DE 69024591D1 DE 69024591 T DE69024591 T DE 69024591T DE 69024591 T DE69024591 T DE 69024591T DE 69024591 D1 DE69024591 D1 DE 69024591D1
Authority
DE
Germany
Prior art keywords
medium
tracks
punching
track density
optical servo
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
DE69024591T
Other languages
English (en)
Other versions
DE69024591T2 (de
Inventor
Jimmy D Godwin
Stephen P Williams
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Insite Peripherals
Original Assignee
Insite Peripherals
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 Insite Peripherals filed Critical Insite Peripherals
Publication of DE69024591D1 publication Critical patent/DE69024591D1/de
Application granted granted Critical
Publication of DE69024591T2 publication Critical patent/DE69024591T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B5/48—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
    • G11B5/596—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 disks
    • G11B5/59677—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 disks with optical servo tracking
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/30—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture with provision for auxiliary signals
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • 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
    • G11B5/82—Disk carriers
    • G11B5/825—Disk carriers flexible discs
    • 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
DE69024591T 1989-10-20 1990-10-15 Medium mit hoher Spurdichte und optischen vertieften Servospuren und Methode zum Stanzen der Spuren auf das Medium Expired - Fee Related DE69024591T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/424,658 US5067039A (en) 1989-10-20 1989-10-20 High track density magnetic media with pitted optical servo tracks and method for stamping the tracks on the media

Publications (2)

Publication Number Publication Date
DE69024591D1 true DE69024591D1 (de) 1996-02-15
DE69024591T2 DE69024591T2 (de) 1996-06-05

Family

ID=23683400

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69024591T Expired - Fee Related DE69024591T2 (de) 1989-10-20 1990-10-15 Medium mit hoher Spurdichte und optischen vertieften Servospuren und Methode zum Stanzen der Spuren auf das Medium

Country Status (4)

Country Link
US (1) US5067039A (de)
EP (1) EP0423662B1 (de)
JP (1) JPH087962B2 (de)
DE (1) DE69024591T2 (de)

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DE3719200A1 (de) * 1987-06-09 1988-12-29 Ibm Deutschland Optische speicherplatte und verfahren zu ihrer herstellung
JPH03219434A (ja) * 1988-12-27 1991-09-26 Canon Inc 光学的情報記録媒体
JP3166181B2 (ja) * 1991-02-28 2001-05-14 株式会社日立製作所 磁気記憶装置
WO1993007617A1 (en) * 1991-10-09 1993-04-15 Seiko Epson Corporation Data recording medium, its production, and data recording/reproduction apparatus
US5283773A (en) * 1992-06-10 1994-02-01 Iomega Corporation Steering laser beam while etching optical servo tracks for magnetic disks
US5334849A (en) * 1992-06-10 1994-08-02 Iomega Corporation Apparatus for and method of verifying etching of optical servo information on magnetic media
US5322987A (en) * 1992-06-10 1994-06-21 Iomega Corporation Pneumatic hub locking device for etching optical servo tracks on magnetic disks
US5279775A (en) * 1992-06-10 1994-01-18 Iomega Corporation Acousto-optical intensity control of laser beam during etching of optical servo information of magnetic media
JP3135389B2 (ja) * 1992-10-23 2001-02-13 松下電器産業株式会社 情報再生方法、情報記録再生方法、情報再生装置、記録媒体及び光ヘッド
US5619480A (en) * 1992-11-06 1997-04-08 Mitsubishi Chemical Corporation Magnetic recording medium and recording/reproducing method therefor as well as information processing apparatus by means thereof
GB9224003D0 (en) * 1992-11-16 1993-01-06 Minnesota Mining & Mfg Magnetic recording materials
US5768076A (en) * 1993-11-10 1998-06-16 International Business Machines Corporation Magnetic recording disk having a laser-textured surface
WO1995026551A1 (en) * 1994-03-28 1995-10-05 Minnesota Mining And Manufacturing Company Updatable optical storage medium
JPH0855381A (ja) * 1994-08-15 1996-02-27 Hitachi Maxell Ltd 磁気デイスク
US5872676A (en) * 1996-01-02 1999-02-16 International Business Machines Corporation Method and apparatus for positioning a dual element magnetoresistive head using thermal signals
US6118632A (en) * 1997-02-12 2000-09-12 International Business Machines Corporation Magnetic disk stack having laser-bump identifiers on magnetic disks
US6775100B1 (en) 1997-05-05 2004-08-10 Seagate Technology Llc Laser assisted track width definition and radial control with magnetic recording
US20030054203A1 (en) * 1997-10-22 2003-03-20 Quantum Corporation, A California Corporation Magnetic tape
EP1032936B1 (de) * 1997-11-21 2004-05-06 Quantum Corporation Magnetband
US20020041981A1 (en) * 1997-11-21 2002-04-11 Akira Ishikawa Magnetic tape
US6084740A (en) 1997-12-01 2000-07-04 Storage Technology Corporation Optical servo system for a tape drive
DE19913382C2 (de) 1998-03-24 2002-08-14 Quantum Corp Mehrkanaliges Magnetbandsystem mit einem optischen Spur-Servo
US7153366B1 (en) 1998-03-24 2006-12-26 Quantum Corporation Systems and method for forming a servo pattern on a magnetic tape
US7029726B1 (en) * 1999-07-27 2006-04-18 Quantum Corporation Method for forming a servo pattern on a magnetic tape
CN1279536C (zh) 1998-05-11 2006-10-11 西加特技术有限责任公司 在母盘上写入曲线伺服扇区图的装置和方法
US6741415B1 (en) 1999-02-16 2004-05-25 Quantum Corporation Method of writing servo signal on magnetic tape
US6365061B1 (en) * 1999-02-17 2002-04-02 Imation Corp. Multibeam laser servowriting of magnetic data storage media
US6433951B1 (en) 1999-02-17 2002-08-13 Imation Corp. Magnetic data storage tape with etched servo pattern, method of manufacturing same, and method of servo positioning on same
US6771450B1 (en) 1999-02-17 2004-08-03 Quantum Corporation Method of writing servo signal on magnetic tape
US6961200B2 (en) 1999-07-27 2005-11-01 Quantum Corporation Optical servo track identification on tape storage media
US20030189782A1 (en) * 2002-04-04 2003-10-09 Storage Technology Corporation Optical servo system for a tape drive
US6558774B1 (en) 1999-08-17 2003-05-06 Quantum Corporation Multiple-layer backcoating for magnetic tape
JP3999436B2 (ja) * 2000-03-10 2007-10-31 富士フイルム株式会社 磁気転写用マスター担体
US6432346B1 (en) 2000-05-03 2002-08-13 Iomega Corporation Process of making magnetic recording disk
US6940676B1 (en) 2000-06-07 2005-09-06 Quantum Corporation Triple push-pull optical tracking system
US6572922B1 (en) * 2000-07-25 2003-06-03 Seagate Technology Llc Eliminating gel particle-related defects for obtaining sub-micron flyability over sol-gel—coated disk substrates
WO2002054391A1 (fr) * 2000-12-28 2002-07-11 Hitachi Maxell, Ltd. Bande magnetique, son procede de nettoyage et appareil de nettoyage/formation de servopiste optique
US6657809B2 (en) * 2001-01-29 2003-12-02 International Business Machines Corporation Method and apparatus for positioning a transducer using a phase difference in surface profile variations on a storage medium
US6723198B1 (en) * 2001-05-24 2004-04-20 Seagate Technology Llc Servo pattern formation via transfer of sol-gel layer and magnetic media obtained thereby
US6757116B1 (en) * 2001-08-16 2004-06-29 Seagate Technology Llc Disk biasing for manufacture of servo patterned media
US6940681B2 (en) 2001-08-20 2005-09-06 Quantum Corporation Optical to magnetic alignment in magnetic tape system
US7023650B2 (en) 2001-11-07 2006-04-04 Quantum Corporation Optical sensor to recording head alignment
US6980390B2 (en) * 2003-02-05 2005-12-27 Quantum Corporation Magnetic media with embedded optical servo tracks
US7187515B2 (en) * 2003-02-05 2007-03-06 Quantum Corporation Method and system for tracking magnetic media with embedded optical servo tracks
US7333289B2 (en) * 2005-03-22 2008-02-19 Tdk Corporation Magnetic recording and reproducing apparatus, method of controlling the same, magnetic recording medium, and stamper for manufacturing magnetic recording medium
JP4675722B2 (ja) * 2005-09-02 2011-04-27 株式会社東芝 磁気記録媒体
WO2011081153A1 (ja) * 2009-12-28 2011-07-07 株式会社フジクラ 金型及びその製造方法
JP5282054B2 (ja) * 2010-01-29 2013-09-04 株式会社日立ハイテクノロジーズ 磁気ディスク検査方法及びその装置

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
US4315283A (en) * 1976-04-08 1982-02-09 Victor Company Of Japan, Ltd. High density recording system using side-by-side information and servo tracks
JPS5394910A (en) * 1976-12-29 1978-08-19 Fujitsu Ltd Magnetic recording disc
US4633451A (en) * 1982-06-30 1986-12-30 International Business Machines Corporation Optical servo for magnetic disks
EP0097774A3 (de) * 1982-06-30 1986-02-05 International Business Machines Corporation Wandlersystem
US4587579A (en) * 1982-12-30 1986-05-06 International Business Machines Corporation System for position detection on a rotating disk
US4558383A (en) * 1983-06-30 1985-12-10 International Business Machines Corporation Information storage disk transducer position control system using a prerecorded servo pattern requiring no alignment with the storage disk
FR2610753A1 (fr) * 1987-02-11 1988-08-12 Commissariat Energie Atomique Substrat pour memoire a disque magnetique et procede de fabrication
JPH0816980B2 (ja) * 1987-03-17 1996-02-21 三菱化学株式会社 磁気デイスク基板およびその製造方法
JPS63251924A (ja) * 1987-04-08 1988-10-19 Hitachi Ltd 情報記録用円板および情報記録方法

Also Published As

Publication number Publication date
EP0423662A3 (en) 1993-04-14
US5067039A (en) 1991-11-19
JPH087962B2 (ja) 1996-01-29
DE69024591T2 (de) 1996-06-05
EP0423662B1 (de) 1996-01-03
EP0423662A2 (de) 1991-04-24
JPH03141087A (ja) 1991-06-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee