DE68920821D1 - Magnetische Medien enthaltende Referenzeinrichtung und Verfahren zur Ermittlung einer Magnetkopflage hinsichtlich der Referenzeinrichtung. - Google Patents

Magnetische Medien enthaltende Referenzeinrichtung und Verfahren zur Ermittlung einer Magnetkopflage hinsichtlich der Referenzeinrichtung.

Info

Publication number
DE68920821D1
DE68920821D1 DE68920821T DE68920821T DE68920821D1 DE 68920821 D1 DE68920821 D1 DE 68920821D1 DE 68920821 T DE68920821 T DE 68920821T DE 68920821 T DE68920821 T DE 68920821T DE 68920821 D1 DE68920821 D1 DE 68920821D1
Authority
DE
Germany
Prior art keywords
reference device
determining
respect
head position
magnetic head
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
DE68920821T
Other languages
English (en)
Other versions
DE68920821T2 (de
Inventor
Jimmy D Godwin
Roger O Williams
Stephen P Williams
Alton B Otis
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 DE68920821D1 publication Critical patent/DE68920821D1/de
Application granted granted Critical
Publication of DE68920821T2 publication Critical patent/DE68920821T2/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
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/08—Track changing or selecting during transducing operation
    • G11B21/081—Access to indexed tracks or parts of continuous track
    • G11B21/083—Access to indexed tracks or parts of continuous track on discs
DE68920821T 1988-11-10 1989-11-08 Magnetische Medien enthaltende Referenzeinrichtung und Verfahren zur Ermittlung einer Magnetkopflage hinsichtlich der Referenzeinrichtung. Expired - Fee Related DE68920821T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/269,779 US4935835A (en) 1988-11-10 1988-11-10 Magnetic media containing reference feature and methods for referencing magnetic head position to the reference feature

Publications (2)

Publication Number Publication Date
DE68920821D1 true DE68920821D1 (de) 1995-03-09
DE68920821T2 DE68920821T2 (de) 1995-05-24

Family

ID=23028628

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68920821T Expired - Fee Related DE68920821T2 (de) 1988-11-10 1989-11-08 Magnetische Medien enthaltende Referenzeinrichtung und Verfahren zur Ermittlung einer Magnetkopflage hinsichtlich der Referenzeinrichtung.

Country Status (4)

Country Link
US (1) US4935835A (de)
EP (1) EP0368269B1 (de)
JP (1) JP2532687B2 (de)
DE (1) DE68920821T2 (de)

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JP2706173B2 (ja) * 1990-09-21 1998-01-28 シャープ株式会社 磁気メモリ素子の製造方法
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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
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US5430594A (en) * 1993-05-10 1995-07-04 Hitachi Maxell, Ltd. Magnetic recording medium
US5559648A (en) * 1993-08-13 1996-09-24 Integral Peripherals, Inc. Method for optimizing track location during servo writing
JPH0855381A (ja) * 1994-08-15 1996-02-27 Hitachi Maxell Ltd 磁気デイスク
US6104579A (en) * 1996-04-11 2000-08-15 Sony Corporation Magnetic disk head having data zone and control signal zones which generate different lifts when flown over by a head slider
US20030054203A1 (en) * 1997-10-22 2003-03-20 Quantum Corporation, A California Corporation Magnetic tape
US6359747B1 (en) 1998-02-10 2002-03-19 Seagate Technology Llc Hard disk patterning
US7029726B1 (en) 1999-07-27 2006-04-18 Quantum Corporation Method for forming a servo pattern on a magnetic tape
US7153366B1 (en) 1998-03-24 2006-12-26 Quantum Corporation Systems and method for forming a servo pattern on a magnetic tape
DE19913382C2 (de) 1998-03-24 2002-08-14 Quantum Corp Mehrkanaliges Magnetbandsystem mit einem optischen Spur-Servo
EP1205912A4 (de) 1999-02-16 2002-08-21 Quantum Corp Methode zum schreiben von servosignalen auf magnetband
JP4286457B2 (ja) 1999-02-17 2009-07-01 クウォンタム・コーポレイション 磁気テープへのサーボ信号書き込み方法
GB2363246B (en) 1999-02-22 2003-06-04 Seagate Technology Llc Buried servo patterned media
US6490117B1 (en) * 1999-03-26 2002-12-03 Seagate Technology Llc Method of thermally printing servo patterns on magnetic media
US6961200B2 (en) * 1999-07-27 2005-11-01 Quantum Corporation Optical servo track identification on tape storage media
US6558774B1 (en) 1999-08-17 2003-05-06 Quantum Corporation Multiple-layer backcoating for magnetic tape
WO2001043122A2 (en) * 1999-12-10 2001-06-14 Seagate Technology Llc Magnetic disc having physical servo patterns with a magnetic carrier, and method of making and using the same
US6493174B1 (en) 2000-02-17 2002-12-10 Imation Corp. Optical servo system for use with magnetic data storage tape having magnetic reference indicators
US6574066B1 (en) 2000-02-17 2003-06-03 Imation Corp. Time-based optical servo system and method
CN1284177C (zh) 2000-03-31 2006-11-08 松下电器产业株式会社 磁盘装置
US6432346B1 (en) 2000-05-03 2002-08-13 Iomega Corporation Process of making magnetic recording disk
DE10025501C2 (de) * 2000-05-23 2002-05-02 Bosch Gmbh Robert Steueranordnung für ein justierbares Gehäuse
US6940676B1 (en) 2000-06-07 2005-09-06 Quantum Corporation Triple push-pull optical tracking system
US6587303B1 (en) * 2000-06-09 2003-07-01 International Business Machines Corporation Servo control of a coarse actuator
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
US6940678B2 (en) * 2002-04-10 2005-09-06 Seagate Technology Llc Magnetic alignment marking of hard disks
US7036209B1 (en) * 2002-07-01 2006-05-02 Seagate Technology Llc Method of simultaneously forming magnetic transition patterns of a dual side recording medium
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
JP4058367B2 (ja) * 2003-03-24 2008-03-05 Ｔｄｋ株式会社 エネルギー線照射装置
KR100585164B1 (ko) * 2004-11-30 2006-06-01 삼성전자주식회사 레퍼런스 서보 트랙 카피 시스템에서의 트랙 제로 위치보정 방법 및 이를 이용한 디스크 드라이브
US9666212B2 (en) 2012-12-05 2017-05-30 Seagate Technology Llc Writer with protruded section at trailing edge

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Also Published As

Publication number Publication date
EP0368269B1 (de) 1995-01-25
EP0368269A3 (de) 1991-01-09
US4935835A (en) 1990-06-19
JPH02187969A (ja) 1990-07-24
DE68920821T2 (de) 1995-05-24
JP2532687B2 (ja) 1996-09-11
EP0368269A2 (de) 1990-05-16

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Legal Events

Date Code Title Description
8328 Change in the person/name/address of the agent

Free format text: BLUMBACH, KRAMER & PARTNER, 65193 WIESBADEN

8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee