DE3685448D1 - Geraet mit kombiniertem magnetkopf. - Google Patents

Geraet mit kombiniertem magnetkopf.

Info

Publication number
DE3685448D1
DE3685448D1 DE8686103043T DE3685448T DE3685448D1 DE 3685448 D1 DE3685448 D1 DE 3685448D1 DE 8686103043 T DE8686103043 T DE 8686103043T DE 3685448 T DE3685448 T DE 3685448T DE 3685448 D1 DE3685448 D1 DE 3685448D1
Authority
DE
Germany
Prior art keywords
magnetic head
combined magnetic
combined
head
magnetic
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 - Lifetime
Application number
DE8686103043T
Other languages
English (en)
Inventor
Shigeyoshi Imakoshi
Hidio Suyama
Hiroaki Yada
Toru Katakura
Tetsuo Sekiya
Masayuki Nakayama
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.)
Sony Corp
Original Assignee
Sony Corp
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
Priority claimed from JP60045985A external-priority patent/JPS61206908A/ja
Priority claimed from JP60087757A external-priority patent/JPS61246912A/ja
Priority claimed from JP60087758A external-priority patent/JPS61246913A/ja
Priority claimed from JP60282325A external-priority patent/JPS62141622A/ja
Application filed by Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of DE3685448D1 publication Critical patent/DE3685448D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G11B5/127—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
    • G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
    • 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
    • G11B5/488—Disposition of heads
    • G11B5/4886—Disposition of heads relative to rotating disc
    • 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
    • G11B5/54—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 into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
    • G11B5/5526—Control therefor; circuits, track configurations or relative disposition of servo-information transducers and servo-information tracks for control thereof
    • G11B5/553—Details
    • G11B5/5534—Initialisation, calibration, e.g. cylinder "set-up"
    • 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
    • G11B5/59633—Servo formatting
DE8686103043T 1985-03-08 1986-03-07 Geraet mit kombiniertem magnetkopf. Expired - Lifetime DE3685448D1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP60045985A JPS61206908A (ja) 1985-03-08 1985-03-08 磁気デイスク装置
JP60087757A JPS61246912A (ja) 1985-04-24 1985-04-24 複合磁気ヘツド装置
JP60087758A JPS61246913A (ja) 1985-04-24 1985-04-24 複合磁気ヘツド装置
JP60282325A JPS62141622A (ja) 1985-12-16 1985-12-16 複合磁気ヘツド装置

Publications (1)

Publication Number Publication Date
DE3685448D1 true DE3685448D1 (de) 1992-07-02

Family

ID=27461808

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686103043T Expired - Lifetime DE3685448D1 (de) 1985-03-08 1986-03-07 Geraet mit kombiniertem magnetkopf.

Country Status (6)

Country Link
US (1) US4729048A (de)
EP (1) EP0194603B1 (de)
KR (1) KR940005560B1 (de)
AU (1) AU576947B2 (de)
CA (1) CA1250048A (de)
DE (1) DE3685448D1 (de)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5010430A (en) * 1987-07-30 1991-04-23 Kabushiki Kaisha Toshiba Head slider arrangement for magnetic disk storage device
EP0304695A1 (de) * 1987-08-17 1989-03-01 Siemens Aktiengesellschaft Magnetische Speichereinrichtung mit einem Spurführungssystem
DE3737452A1 (de) * 1987-11-04 1989-05-18 Siemens Ag Magnetische datenspeichereinrichtung mit einem spurverfolgungssystem
US4962437A (en) * 1988-02-24 1990-10-09 Magnetic Peripherals Inc. Thin film servo head employing the inactive transducer coils to cancel write noise from nearby data heads
NL8902570A (nl) * 1989-10-17 1991-05-16 Philips Nv Dunnefilm magneetkop.
US5073833A (en) * 1989-11-13 1991-12-17 International Business Machines Corporation Dual sector servo system for disk file with separate read and write heads
JPH03290816A (ja) * 1990-04-06 1991-12-20 Sony Corp 記録再生装置及びその記録媒体
JP2935129B2 (ja) * 1990-05-28 1999-08-16 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 固定磁気ディスク装置及び関連する装置・方法
US5257149A (en) * 1991-02-13 1993-10-26 Seagate Technology, Inc. Disc drive with offset address field
TW243530B (en) * 1992-12-30 1995-03-21 Ibm Magnetoresistive sensor with improved microtrack profile for improved servo-positioning precision
US5581420A (en) * 1993-03-08 1996-12-03 International Business Machines Corporation Method and system for determining a radial positioning valve used for writing tracks at a desired track pitch
US5485322A (en) * 1993-03-08 1996-01-16 International Business Machines Corporation Method and system for writing a clock track on a storage medium
US6700732B1 (en) * 1993-07-30 2004-03-02 Washington University Method and apparatus for a vernier magnetic recording head
US6301087B1 (en) * 1994-07-14 2001-10-09 Nomai S.A. Magneto-resistive removable hard disk cartridge and disk drive and quadrature embedded servo bursts
US5488525A (en) * 1994-08-18 1996-01-30 International Business Machines Corporation Decoupled magnetic head assembly for quarter-inch tape
DE69625418T2 (de) * 1995-03-24 2003-10-02 Onstream Inc Magnetkopf und system zur kontrolle der position eines magnetkopfes
KR0182951B1 (ko) * 1995-11-27 1999-04-15 김광호 하드디스트 드라이브에 있어서 자체적인 서보라이팅 방법 및 장치
US5875064A (en) 1996-07-09 1999-02-23 International Business Machines Corporation Method and system for accurate self-servowriting with normalization in a disk drive
US5946159A (en) * 1996-11-27 1999-08-31 International Business Machines Corporation Servo edge correction using edge samples taken by independently positioned servo elements
US5798890A (en) * 1997-03-05 1998-08-25 International Business Machines Corporation Disk drive with identical three-element, side-by-side heads on opposite disk surfaces
US6104562A (en) * 1997-04-03 2000-08-15 International Business Machines Corporation Multiple element transducer for magnetic recording
US6088184A (en) * 1998-06-16 2000-07-11 International Business Machines Corporation Apparatus and method for the control and positioning of magnetic recording heads in an azimuth recording system
JP3934801B2 (ja) * 1998-08-28 2007-06-20 Ｔｄｋ株式会社 薄膜磁気ヘッドおよびその製造方法ならびに薄膜磁気ヘッド用素材およびその製造方法
US6411459B1 (en) 1999-02-22 2002-06-25 Seagate Technology Llc Advanced servo writing method for hard disc drives
US6633451B1 (en) * 1999-04-28 2003-10-14 Hitachi Global Storage Technologies Netherlands B.V. Self-servo-writing timing pattern generation with non-overlapping read and write elements
US6600636B1 (en) 1999-10-12 2003-07-29 Maxtor Corporation Magnetic head with write element offset from read element
US6865041B1 (en) 2000-02-29 2005-03-08 Hitachi Global Storage Technologies Netherlands B.V. Method and apparatus for servowriting using a unipolar write current
SG92772A1 (en) * 2000-03-29 2002-11-19 Fuji Photo Film Co Ltd Method and apparatus for magnetic transfer
SG92774A1 (en) * 2000-03-29 2002-11-19 Fuji Photo Film Co Ltd Method and apparatus for magnetic transfer
SG92773A1 (en) * 2000-03-29 2002-11-19 Fuji Photo Film Co Ltd Method and apparatus for magnetic transfer
SG92760A1 (en) * 2000-03-29 2002-11-19 Fuji Photo Film Co Ltd Magnetic transfer method and system
JP2004022022A (ja) * 2002-06-13 2004-01-22 Fuji Photo Film Co Ltd 磁気ヘッド
JP2004030777A (ja) * 2002-06-25 2004-01-29 Internatl Business Mach Corp <Ibm> データ記憶装置、記録媒体、サーボライト方法及びデータ読み書き方法
US7474488B2 (en) * 2005-08-30 2009-01-06 International Business Machines Corporation Magnetic head, tape drive system, and method
TWI287318B (en) * 2005-12-07 2007-09-21 Ind Tech Res Inst Radio frequency identification (RFID) antenna and fabricating method thereof
US9070406B1 (en) 2014-03-10 2015-06-30 Western Digital Technologies, Inc. Disk drive configuring one-dimensional and two-dimensional recording areas based on read element spacing
US9245556B2 (en) * 2014-03-10 2016-01-26 Western Digital Technologies, Inc. Disk drive employing multiple read elements to increase radial band for two-dimensional magnetic recording
US11929104B2 (en) * 2022-02-18 2024-03-12 Seagate Technology Llc Data storage drive with dedicated erase transducer

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2299694A1 (fr) * 1975-01-31 1976-08-27 Ibm Dispositif d'acces aux pistes d'un milieu d'enregistrement tel qu'un disque magnetique
US4007493A (en) * 1975-05-06 1977-02-08 Burroughs Corporation Track positioning system for magnetic transducer head
US4068268A (en) * 1976-01-08 1978-01-10 Idemoto Tom Y Method and apparatus for writing servo-tracks on rotating magnetic memory surfaces
JPS53138314A (en) * 1977-05-09 1978-12-02 Fujitsu Ltd Magnetic recording system
JPS56119918A (en) * 1980-02-22 1981-09-19 Nec Corp Magnetic disc memory device
JPS6074116A (ja) * 1983-09-29 1985-04-26 Hitachi Ltd 磁気記録媒体
US4613915A (en) * 1985-10-16 1986-09-23 International Business Machines Corporation Twin track vertical magnetic recording servo control method and apparatus with offset voltage compensation

Also Published As

Publication number Publication date
KR940005560B1 (ko) 1994-06-20
EP0194603B1 (de) 1992-05-27
AU576947B2 (en) 1988-09-08
EP0194603A2 (de) 1986-09-17
CA1250048A (en) 1989-02-14
KR860007632A (ko) 1986-10-15
EP0194603A3 (en) 1989-06-28
AU5439086A (en) 1986-09-11
US4729048A (en) 1988-03-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: PATENTANWAELTE MUELLER & HOFFMANN, 81667 MUENCHEN

8339 Ceased/non-payment of the annual fee