WO2006048580A3 - Dispositif d'enregistrement et/ou de lecture a tetes magnetiques multiples a entrefers azimutes - Google Patents

Dispositif d'enregistrement et/ou de lecture a tetes magnetiques multiples a entrefers azimutes Download PDF

Info

Publication number
WO2006048580A3
WO2006048580A3 PCT/FR2005/050919 FR2005050919W WO2006048580A3 WO 2006048580 A3 WO2006048580 A3 WO 2006048580A3 FR 2005050919 W FR2005050919 W FR 2005050919W WO 2006048580 A3 WO2006048580 A3 WO 2006048580A3
Authority
WO
WIPO (PCT)
Prior art keywords
recording
playback device
medium
magnetic heads
multiple magnetic
Prior art date
Application number
PCT/FR2005/050919
Other languages
English (en)
Other versions
WO2006048580A2 (fr
Inventor
Jean-Baptiste Albertini
Pierre Gaud
Original Assignee
Commissariat Energie Atomique
Jean-Baptiste Albertini
Pierre Gaud
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 Commissariat Energie Atomique, Jean-Baptiste Albertini, Pierre Gaud filed Critical Commissariat Energie Atomique
Priority to JP2007539621A priority Critical patent/JP2008519384A/ja
Priority to EP05819144A priority patent/EP1810283A2/fr
Priority to US11/718,477 priority patent/US20080266709A1/en
Publication of WO2006048580A2 publication Critical patent/WO2006048580A2/fr
Publication of WO2006048580A3 publication Critical patent/WO2006048580A3/fr

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
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
    • Y10T29/49032—Fabricating head structure or component thereof
    • Y10T29/49048—Machining magnetic material [e.g., grinding, etching, polishing]
    • Y10T29/49052—Machining magnetic material [e.g., grinding, etching, polishing] by etching

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

Il s'agit d'un dispositif d'enregistrement et/ou de lecture d'un support magnétique (35) avec des 5 pistes magnétiques (36), comportant plusieurs têtes magnétiques (30.1 à 30.4) comprenant chacune une paire de pièces polaires séparées par un entrefer (e) amagnétique. Ces paires de pièces polaires sont regroupées sur au moins un support (1000) présentant un 10 angle d'inclinaison () non nul compris entre ± 90° par rapport aux pistes, tous les entrefers (e) des paires de pièces polaires du support (1000) présentant un même angle d'azimut (), compris entre ± 90° bornes exclues par rapport à une direction normale au support (1000).
PCT/FR2005/050919 2004-11-04 2005-11-02 Dispositif d'enregistrement et/ou de lecture a tetes magnetiques multiples a entrefers azimutes WO2006048580A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2007539621A JP2008519384A (ja) 2004-11-04 2005-11-02 多数の磁気ヘッドおよび方位制御されたヘッドギャップを備えた記録および／または読取デバイス
EP05819144A EP1810283A2 (fr) 2004-11-04 2005-11-02 Dispositif d'enregistrement et/ou de lecture a tetes magnetiques multiples a entrefers azimutes
US11/718,477 US20080266709A1 (en) 2004-11-04 2005-11-02 Recording and/or Playback Device Comprising Multiple Magnetic Heads With Azimuth Gaps

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0452527A FR2877484A1 (fr) 2004-11-04 2004-11-04 Dispositif d'enregistrement et/ou de lecture a tetes magnetiques multiples a entrefers azimutes
FR0452527 2004-11-04

Publications (2)

Publication Number Publication Date
WO2006048580A2 WO2006048580A2 (fr) 2006-05-11
WO2006048580A3 true WO2006048580A3 (fr) 2006-11-09

Family

ID=34952969

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2005/050919 WO2006048580A2 (fr) 2004-11-04 2005-11-02 Dispositif d'enregistrement et/ou de lecture a tetes magnetiques multiples a entrefers azimutes

Country Status (5)

Country Link
US (1) US20080266709A1 (fr)
EP (1) EP1810283A2 (fr)
JP (1) JP2008519384A (fr)
FR (1) FR2877484A1 (fr)
WO (1) WO2006048580A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7773333B2 (en) * 2007-08-10 2010-08-10 International Business Machines Corporation Recording data simultaneously at two depths of a tilted magnetic medium
FR2956241B1 (fr) * 2010-02-10 2012-08-17 Ingenico Sa Dispositif de lecture magnetique
US9105291B1 (en) * 2014-03-11 2015-08-11 International Business Machines Corporation Tape recording head having non-parallel gaps and dissimilar transducer pitches
US9852747B1 (en) * 2016-09-22 2017-12-26 International Business Machines Corporation Segmented magnetic recording write head for writing timing-based servo patterns
US9934804B1 (en) 2016-09-22 2018-04-03 International Business Machines Corporation Segmented magnetic recording write head for detection-based servo pattern writing

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5293285A (en) * 1992-06-01 1994-03-08 Storage Technology Corporation Apparatus and media for recording data on two sides of a magnetic tape
US5452165A (en) * 1994-03-16 1995-09-19 International Business Machines Corporation Close packed magnetic head linear array
US5465475A (en) * 1992-07-30 1995-11-14 Ricoh Co., Ltd. Method of forming a thin film magnetic head
US5883760A (en) * 1992-10-20 1999-03-16 Mitsubishi Denki Kabushiki Kaisha Magnetic structure and magnetic head using the same
FR2774797A1 (fr) * 1998-02-11 1999-08-13 Commissariat Energie Atomique Procede de realisation d'un ensemble a plusieurs tetes magnetiques et ensemble a tetes multiples obtenu par ce procede
US20020187565A1 (en) * 2001-04-03 2002-12-12 Yoshihiko Inoue Method of planarizing substrate, magnetic head and manufacturing method of the same

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3273539D1 (en) * 1981-06-08 1986-11-06 Hitachi Ltd Azimuthal magnetic recording and reproducing apparatus
US5132861A (en) * 1989-10-02 1992-07-21 Behr Michael I Systems using superimposed, orthogonal buried servo signals
FR2664729B1 (fr) * 1990-07-11 1992-09-18 Commissariat Energie Atomique Procede de fabrication de tete magnetique possedant un entrefer presentant un azimut controlable.
FR2745111B1 (fr) * 1996-02-15 1998-03-13 Commissariat Energie Atomique Tete magnetique verticale a bobinage integre et son procede de realisation
FR2747226B1 (fr) * 1996-04-04 1998-04-30 Commissariat Energie Atomique Procedes de realisation d'une tete magnetique double a entrefers d'azimuts opposes
JPH10302211A (ja) * 1997-01-14 1998-11-13 Sony Corp 磁気ヘッド及びその製造方法
KR20000064980A (ko) * 1997-02-24 2000-11-06 요트.게.아. 롤페즈 최적 결정배향을 갖는 자기 헤드를 구비한 기록 및/또는 재생장치, 및 최적 결정배향을 갖는 자기 헤드
JPH10334433A (ja) * 1997-05-30 1998-12-18 Sony Corp 磁気記録再生装置
JPH11203631A (ja) * 1998-01-06 1999-07-30 Sony Corp 磁気抵抗効果型磁気ヘッド及びこれを用いた記録再生装置
JP3400378B2 (ja) * 1999-03-26 2003-04-28 アルプス電気株式会社 薄膜磁気ヘッドを用いた回転ヘッド組立体
US6545837B1 (en) * 1999-12-21 2003-04-08 Imation Corp. Method and apparatus for servo controlled azimuth data recording
JP2002216313A (ja) * 2001-01-15 2002-08-02 Sony Corp マルチ磁気記録ヘッド並びにこれを用いた磁気記録方法及び磁気記録装置
JP2004039074A (ja) * 2002-07-02 2004-02-05 Sony Corp マルチチャンネルヘッドの位置制御装置およびマルチチャンネルヘッドの位置制御方法
US6947247B2 (en) * 2003-03-05 2005-09-20 Advanced Research Corporation Large angle azimuth recording and head configurations
US7106544B2 (en) * 2003-05-09 2006-09-12 Advanced Research Corporation Servo systems, servo heads, servo patterns for data storage especially for reading, writing, and recording in magnetic recording tape

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5293285A (en) * 1992-06-01 1994-03-08 Storage Technology Corporation Apparatus and media for recording data on two sides of a magnetic tape
US5465475A (en) * 1992-07-30 1995-11-14 Ricoh Co., Ltd. Method of forming a thin film magnetic head
US5883760A (en) * 1992-10-20 1999-03-16 Mitsubishi Denki Kabushiki Kaisha Magnetic structure and magnetic head using the same
US5452165A (en) * 1994-03-16 1995-09-19 International Business Machines Corporation Close packed magnetic head linear array
FR2774797A1 (fr) * 1998-02-11 1999-08-13 Commissariat Energie Atomique Procede de realisation d'un ensemble a plusieurs tetes magnetiques et ensemble a tetes multiples obtenu par ce procede
US20020187565A1 (en) * 2001-04-03 2002-12-12 Yoshihiko Inoue Method of planarizing substrate, magnetic head and manufacturing method of the same

Also Published As

Publication number Publication date
EP1810283A2 (fr) 2007-07-25
JP2008519384A (ja) 2008-06-05
US20080266709A1 (en) 2008-10-30
WO2006048580A2 (fr) 2006-05-11
FR2877484A1 (fr) 2006-05-05

Similar Documents

Publication Publication Date Title
WO2004102463A3 (fr) Enregistrement a grand angle d'azimut et configurations de tete
EP1619667A3 (fr) Appareil de démagnétisation d'aimant permanent
WO2006048580A3 (fr) Dispositif d'enregistrement et/ou de lecture a tetes magnetiques multiples a entrefers azimutes
KR970067134A (ko) 멀티 자기 헤드 및 이것을 구비한 자기 디스크 장치
WO2002078005A3 (fr) Systemes et procedes de memoire moleculaire
AU2003286951A1 (en) Information storage medium having multi-angle data structure and apparatus therefor
WO2003096327A3 (fr) Tete d'enregistrement magnetique
AU2003301419A1 (en) Perfluoropolyether ester compound, lubricant and magnetic recording medium
AU2002334789A1 (en) Lubricant for magnetic recording medium and use thereof
SG118341A1 (en) Magnetic recording medium and magnetic recording/reproducing apparatus using the same
TW200518062A (en) Information recording medium, method of recording information thereto, and information recording/reproducing apparatus
WO2002007478A3 (fr) Filtre
PL376719A1 (pl) Dysk optyczny, zawierający informację o polaryzacji śledzenia, oraz urządzenie i sposób zapisywania i odtwarzania danych użytkownika
JP2004110896A5 (fr)
EP1789968A4 (fr) Support d'enregistrement, procede et appareil d'enregistrement et de reproduction de donnees sur ce support
SG126049A1 (en) Magnetic disk apparatus
WO2004064048A3 (fr) Support magnetique d'enregistrement, son procede de fabrication et appareil magnetique de lecture/ecriture
WO2003085664A3 (fr) Support d'enregistrement d'information, appareil enregistreur, appareil reproducteur, et appareil enregistreur-reproducteur
SG114538A1 (en) Substrate for perpendicular magnetic recording medium, perpendicular magnetic recording medium using the substrate, and method for those productions
WO2005114657A3 (fr) Tetes a film mince multiplan
GB2534648A (en) Servo systems with PES enhanced integrated servo bursts
WO2005101043A8 (fr) Ensemble et procede pour determiner la direction de champs magnetiques
AU2002361111A1 (en) Perpendicular magnetic recording medium
AU2003235730A1 (en) Magnetic recording head with annealed multilayer, high moment structure
EP1726007A4 (fr) Support d'enregistrement et procede pour l'enregistrement et la reproduction de donnees sur et depuis ledit support

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KN KP KR KZ LC LK LR LS LT LU LV LY MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2005819144

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 11718477

Country of ref document: US

Ref document number: 2007539621

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

WWP Wipo information: published in national office

Ref document number: 2005819144

Country of ref document: EP