WO1988001423A3 - Support d'enregistrement magnetique et servo-systemes utilisant ce support - Google Patents

Support d'enregistrement magnetique et servo-systemes utilisant ce support Download PDF

Info

Publication number
WO1988001423A3
WO1988001423A3 PCT/US1987/002012 US8702012W WO8801423A3 WO 1988001423 A3 WO1988001423 A3 WO 1988001423A3 US 8702012 W US8702012 W US 8702012W WO 8801423 A3 WO8801423 A3 WO 8801423A3
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic recording
media
magnetic
recording media
same
Prior art date
Application number
PCT/US1987/002012
Other languages
English (en)
Other versions
WO1988001423A2 (fr
Inventor
Vernon E Ford
Jeremy K Jones
John J Mader
William T Plummer
Original Assignee
Polaroid 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
Application filed by Polaroid Corp filed Critical Polaroid Corp
Priority to KR1019880700341A priority Critical patent/KR970007248B1/ko
Priority to BR8707444A priority patent/BR8707444A/pt
Publication of WO1988001423A2 publication Critical patent/WO1988001423A2/fr
Publication of WO1988001423A3 publication Critical patent/WO1988001423A3/fr
Priority to NO881672A priority patent/NO881672L/no
Priority to DK213888A priority patent/DK213888A/da

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
    • 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
    • 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

Abstract

Un support d'enregistrement magnétique (20A) ainsi que des systèmes d'enregistrement magnétique utilisant un tel support incorporent un réseau optique de transmission de lumière (22A), dont l'extension correspond au moins à celle de la zone d'enregistrement magnétique (16, 16A). Un second réseau optique de transmission de lumière (322) est associé au transducteur magnétique ou à la tête de lecture/écriture (302A, 302B). Un dessin moiré est produit par la lumière transmise au travers des deux réseaux optiques, et des modifications dans le dessin moiré résultant des changements d'alignement des réseaux optiques dus au mouvement de la tête de lecture/écriture par rapport au support sont utilisées pour produire des informations d'asservissement dans le but de maintenir le transducteur magnétique aligné avec la piste magnétique. Des capacités d'enregistrement magnétique plus élevées peuvent être obtenues en utilisant de tels systèmes et supports, étant donné qu'aucune zone d'enregistrement magnétique n'est utilisée à des fins d'information d'asservissement.
PCT/US1987/002012 1986-08-21 1987-08-17 Support d'enregistrement magnetique et servo-systemes utilisant ce support WO1988001423A2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1019880700341A KR970007248B1 (ko) 1986-08-21 1987-08-17 자기기록매체 및 그를 이용한 서어보시스템
BR8707444A BR8707444A (pt) 1986-08-21 1987-08-17 Dispositivo gravador magnetico,sistema para ler e/ou escrever magneticamente dados,aparelho para uso com um dispositivo gravador magnetico e metodo de posicionar uma cabeca de ler/escrever adjacente a um dispositivo gravador magnetico
NO881672A NO881672L (no) 1986-08-21 1988-04-18 Magnetisk opptegningsmedium og servosystem som bruker dette.
DK213888A DK213888A (da) 1986-08-21 1988-04-20 Magnetiske optegnelsesmedier og servosystemer til benyttelse af saadanne medier

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US898,527 1986-08-21
US06/898,527 US4816939A (en) 1986-08-21 1986-08-21 Magnetic recording media and servo systems using light-transmitting optical gratings

Publications (2)

Publication Number Publication Date
WO1988001423A2 WO1988001423A2 (fr) 1988-02-25
WO1988001423A3 true WO1988001423A3 (fr) 1988-04-07

Family

ID=25409580

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1987/002012 WO1988001423A2 (fr) 1986-08-21 1987-08-17 Support d'enregistrement magnetique et servo-systemes utilisant ce support

Country Status (14)

Country Link
US (1) US4816939A (fr)
EP (1) EP0257713B1 (fr)
JP (1) JP2752071B2 (fr)
KR (1) KR970007248B1 (fr)
CN (1) CN1012327B (fr)
AT (1) ATE104790T1 (fr)
AU (1) AU593484B2 (fr)
BR (1) BR8707444A (fr)
CA (1) CA1280206C (fr)
DE (1) DE3789640T2 (fr)
DK (1) DK213888A (fr)
ES (1) ES2055698T3 (fr)
MX (2) MX160092A (fr)
WO (1) WO1988001423A2 (fr)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4843494A (en) * 1987-10-15 1989-06-27 Polaroid Corporation Data storage apparatus using optical servo tracks
US4958245A (en) * 1988-04-07 1990-09-18 Insite Peripherals, Inc. Apparatus and method for optical servo control with media having information storage and servo control regions of different reflectivities
US4961123A (en) * 1988-06-03 1990-10-02 Insite Peripherals Magnetic information media storage with optical servo tracks
US5179482A (en) * 1988-06-21 1993-01-12 Sony Corporation Disk drive with optical encoder having integral scale member
US4969058A (en) * 1988-11-10 1990-11-06 Insite Peripherals CArriage assembly for high track density flexible magnetic disk drive
US4946231A (en) * 1989-05-19 1990-08-07 The United States Of America As Represented By The Secretary Of The Army Polarizer produced via photographic image of polarizing grid
JP3166181B2 (ja) * 1991-02-28 2001-05-14 株式会社日立製作所 磁気記憶装置
US5311378A (en) * 1992-05-05 1994-05-10 Insite Peripherals, Inc. Dual very-high density magnetic head assembly with optical servo positioning for very high density floppy disk recording and high density format compatability
DE69325712D1 (de) * 1992-11-06 1999-08-26 Mitsubishi Chem Corp Magnetisches aufzeichnungsmedium, dessen aufzeichnungs-/wiedergabeverfahren und informationsverarbeitungssystem, das dieses medium und das verfahren gebraucht
GB9224003D0 (en) * 1992-11-16 1993-01-06 Minnesota Mining & Mfg Magnetic recording materials
US5349484A (en) * 1992-12-23 1994-09-20 Eastman Kodak Company Light pattern detection for film edge following
US5424553A (en) * 1994-05-16 1995-06-13 Eastman Kodak Company Method for aligning a lenticular material for printing
US5790276A (en) * 1995-02-15 1998-08-04 Eastman Kodak Company Apparatus and method for image reformatting
US6356401B1 (en) * 1997-07-22 2002-03-12 Seagate Technology Llc Method and apparatus for forming accurate optical clock patterns
US20030054203A1 (en) * 1997-10-22 2003-03-20 Quantum Corporation, A California Corporation Magnetic tape
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
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
US6246535B1 (en) * 1998-11-13 2001-06-12 Quantum Corporation Optical apparatus for tracking a magnetic tape
EP1205912A4 (fr) 1999-02-16 2002-08-21 Quantum Corp Procede d'ecriture de signaux d'asservissement sur une bande magnetique
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
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
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
US6493174B1 (en) * 2000-02-17 2002-12-10 Imation Corp. Optical servo system for use with magnetic data storage tape having magnetic reference indicators
US6940676B1 (en) 2000-06-07 2005-09-06 Quantum Corporation Triple push-pull optical tracking system
TW550551B (en) * 2000-07-28 2003-09-01 Koninkl Philips Electronics Nv Magnetic scanning system
US7227717B1 (en) * 2001-06-18 2007-06-05 Seagate Technology Llc Asymmetric disk surface properties in one head disk drives
US6940681B2 (en) 2001-08-20 2005-09-06 Quantum Corporation Optical to magnetic alignment in magnetic tape system
US6856484B2 (en) * 2001-09-05 2005-02-15 Quantum Corporation Magnetic servo of a recording head
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
US7085095B2 (en) * 2003-10-20 2006-08-01 Quantum Corporation Electromagnetic void-sensing probes and position control systems
US7139152B2 (en) * 2003-10-20 2006-11-21 Quantum Corporation Servo methods and systems using existing data structures and optical masks
US7102845B2 (en) * 2003-10-20 2006-09-05 Quantum Corporation Servo methods and systems using existing data structures and medium edge position
US7149050B2 (en) * 2003-10-20 2006-12-12 Quantum Corporation Diffractive position sensors and control systems
US7136255B2 (en) * 2003-10-20 2006-11-14 Quantum Corporation Servo methods and systems using masked medium edge position sensors
US7116514B2 (en) * 2003-10-20 2006-10-03 Quantum Corporation Methods and systems for magnetic recording
CN1296458C (zh) * 2004-05-14 2007-01-24 中国石油化工股份有限公司 低碳烷烃无氧直接转化的定向反应催化裂化方法
CN1296459C (zh) * 2004-05-14 2007-01-24 中国石油化工股份有限公司 低碳烷烃无氧直接转化的定向反应催化热裂解方法
US7184233B2 (en) * 2004-06-04 2007-02-27 Quantum Corporation Dual source tracking servo systems and associated methods
US7499235B2 (en) * 2005-03-18 2009-03-03 Quantum Corporation Auto-servo tape system and associated recording head
US7826169B2 (en) * 2007-04-25 2010-11-02 Quantum Corporation Servo error detection and compensation utilizing virtual data tracking servo methods
US7838814B2 (en) * 2007-05-23 2010-11-23 Xerox Corporation Plenoptic system for recording images from sheets

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923781A (en) * 1953-12-10 1960-02-02 Jr Thurlow M Gordon System for continuously recording sound on film photographically
US4340305A (en) * 1977-05-03 1982-07-20 Massachusetts Institute Of Technology Plate aligning
GB2121227A (en) * 1982-05-11 1983-12-14 Nigel Geoffrey Ley Optical memory recording disc
EP0130495A1 (fr) * 1983-06-30 1985-01-09 International Business Machines Corporation Disque d'enregistrement portant un dessin d'assistance et dispositif de disque d'enregistrement comprenant un tel disque d'enregistrement
WO1985003376A1 (fr) * 1984-01-30 1985-08-01 Illuminated Data, Inc. Appareil optique de stockage et de lecture de donnees
EP0177737A2 (fr) * 1984-08-28 1986-04-16 Fuji Photo Film Co., Ltd. Disque de mémoire optique avec système de sélection de piste

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2092892A (en) * 1935-12-31 1937-09-14 Rca Corp Phonographic apparatus
US3633038A (en) * 1970-05-01 1972-01-04 Newell Ind Transducer-positioning system using radiation-sensitive means
FR2315142A1 (fr) * 1975-06-17 1977-01-14 Pyral Soc Procede de guidage d'une tete d'enregistrement et/ou de lecture d'un support magnetique
US4542989A (en) * 1981-03-02 1985-09-24 Randwal Instrument Co., Inc. Apparatus for position encoding
JPS59146444A (ja) * 1983-02-10 1984-08-22 Canon Electronics Inc 磁気デイスク
JPS61500877A (ja) * 1983-12-27 1986-05-01 エヌ・シ−・ア−ル・コ−ポレ−シヨン 磁気記録媒体及びその追跡装置と方法
JPS60263343A (ja) * 1984-06-11 1985-12-26 Canon Inc 光学式情報処理装置
JPS60263342A (ja) * 1984-06-11 1985-12-26 Canon Inc 光学式情報処理装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923781A (en) * 1953-12-10 1960-02-02 Jr Thurlow M Gordon System for continuously recording sound on film photographically
US4340305A (en) * 1977-05-03 1982-07-20 Massachusetts Institute Of Technology Plate aligning
GB2121227A (en) * 1982-05-11 1983-12-14 Nigel Geoffrey Ley Optical memory recording disc
EP0130495A1 (fr) * 1983-06-30 1985-01-09 International Business Machines Corporation Disque d'enregistrement portant un dessin d'assistance et dispositif de disque d'enregistrement comprenant un tel disque d'enregistrement
WO1985003376A1 (fr) * 1984-01-30 1985-08-01 Illuminated Data, Inc. Appareil optique de stockage et de lecture de donnees
EP0177737A2 (fr) * 1984-08-28 1986-04-16 Fuji Photo Film Co., Ltd. Disque de mémoire optique avec système de sélection de piste

Also Published As

Publication number Publication date
EP0257713A3 (en) 1988-05-11
BR8707444A (pt) 1988-11-01
MX160092A (es) 1989-11-27
WO1988001423A2 (fr) 1988-02-25
CN1012327B (zh) 1991-04-10
KR880701938A (ko) 1988-11-07
US4816939A (en) 1989-03-28
DK213888D0 (da) 1988-04-20
KR970007248B1 (ko) 1997-05-07
CA1280206C (fr) 1991-02-12
AU593484B2 (en) 1990-02-08
EP0257713A2 (fr) 1988-03-02
AU7912987A (en) 1988-03-08
MX173662B (es) 1994-03-22
JPH01500625A (ja) 1989-03-01
DK213888A (da) 1988-04-20
ES2055698T3 (es) 1994-09-01
JP2752071B2 (ja) 1998-05-18
EP0257713B1 (fr) 1994-04-20
DE3789640D1 (de) 1994-05-26
DE3789640T2 (de) 1994-08-04
ATE104790T1 (de) 1994-05-15
CN87105814A (zh) 1988-03-02

Similar Documents

Publication Publication Date Title
WO1988001423A3 (fr) Support d'enregistrement magnetique et servo-systemes utilisant ce support
AU577353B2 (en) Read - write head structure
DE69014663T2 (de) Optisches Scheibeaufzeichnungssystem.
GB1285999A (en) Recorder and reproducer system
EP0336328A3 (fr) Appareil d'enregistrement et de reproduction optique d'information
SG28345G (en) Apparatus for optically scanning an information plane
DE3883174T2 (de) Optisches Informationsaufzeichnungsmedium.
DE3577491D1 (de) Optisches informationsaufzeichnungsmedium.
KR890008770A (ko) 광정보 기록매체
EP0097774A3 (fr) Système transducteur
FR2561022B1 (fr) Support d'enregistrement d'information optique
DE68919866D1 (de) Optischer Aufzeichnungsträger.
EP0347081A3 (fr) Dispositifs de têtes optiques pour l'enregistrement et/ou la reproduction d'information
DE3853497D1 (de) Optisches Informationsaufzeichnungsmedium.
AU2868889A (en) Optically readable record carrier of the inscribable type and optical read apparatus for reading such a record carrier
EP0339672A3 (fr) Milieu optique d'enregistrement de type servo échantillonné et son appareil optique d'enregistrement
DE3888324T2 (de) Optische Platte.
JPS6479950A (en) Optical recording medium and its production
JPS59153630U (ja) 光学式再生装置
WO1999034358A3 (fr) Support d'enregistrement optique multidimensionnel et son appareil d'enregistrement et de reproduction
JPH01146353U (fr)
JPS5750344A (en) Disk-shaped information recording medium
JPS5737781A (en) Positioning system for data head

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AU BR DK JP KR NO

AK Designated states

Kind code of ref document: A3

Designated state(s): AU BR DK JP KR NO