DE3212884C2 - - Google Patents

Info

Publication number
DE3212884C2
DE3212884C2 DE3212884A DE3212884A DE3212884C2 DE 3212884 C2 DE3212884 C2 DE 3212884C2 DE 3212884 A DE3212884 A DE 3212884A DE 3212884 A DE3212884 A DE 3212884A DE 3212884 C2 DE3212884 C2 DE 3212884C2
Authority
DE
Germany
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
Application number
DE3212884A
Other versions
DE3212884A1 (de
Inventor
Kunio Yokohama Jp Goto
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Publication of DE3212884A1 publication Critical patent/DE3212884A1/de
Application granted granted Critical
Publication of DE3212884C2 publication Critical patent/DE3212884C2/de
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G11B21/10—Track finding or aligning by moving the head ; Provisions for maintaining alignment of the head relative to the track during transducing operation, i.e. track following
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/32—Maintaining desired spacing between record carrier and head, e.g. by fluid-dynamic spacing
    • 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
    • G11B23/34—Signal means additional to the main recording track, e.g. photoelectric sensing of sprocket holes for timing
    • 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
    • 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
DE19823212884 1981-04-07 1982-04-06 Magnetaufzeichnung und -wiedergabe an einem spurgesteuerten rillenlosen medium mit magnetischen und mit kapazitaets-eigenschaften Granted DE3212884A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56051957A JPS57167172A (en) 1981-04-07 1981-04-07 High density information recording and reproducing system

Publications (2)

Publication Number Publication Date
DE3212884A1 DE3212884A1 (de) 1982-11-04
DE3212884C2 true DE3212884C2 (de) 1987-04-30

Family

ID=12901344

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823212884 Granted DE3212884A1 (de) 1981-04-07 1982-04-06 Magnetaufzeichnung und -wiedergabe an einem spurgesteuerten rillenlosen medium mit magnetischen und mit kapazitaets-eigenschaften

Country Status (4)

Country Link
US (1) US4639906A (de)
JP (1) JPS57167172A (de)
DE (1) DE3212884A1 (de)
GB (1) GB2096384B (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4556597A (en) * 1983-08-22 1985-12-03 International Business Machines Corporation Ion doped servo pattern for magnetic recording disk
JPS60109018A (ja) * 1983-11-18 1985-06-14 Nec Home Electronics Ltd 垂直磁気記録再生装置
DE3512715A1 (de) * 1984-04-09 1985-10-24 Victor Company Of Japan, Ltd., Yokohama, Kanagawa Verfahren und vorrichtung zur aufzeichnung und wiedergabe von signalen mittels aufzeichnungsplatten
US4648087A (en) * 1984-06-28 1987-03-03 International Business Machines Corporation Capacitive sensing employing thin film inductors
JPS62137710A (ja) * 1985-12-10 1987-06-20 Victor Co Of Japan Ltd 電極付き磁気ヘツド
JPH0777015B2 (ja) * 1987-01-23 1995-08-16 松下電器産業株式会社 磁気デイスク装置
US4823205A (en) * 1988-02-08 1989-04-18 International Business Machines Corporation Capacitive sensor for head positioning in magnetic recording disk files
US5083226A (en) * 1988-09-22 1992-01-21 Hitachi, Ltd. Magnetic disk drive
US4935835A (en) * 1988-11-10 1990-06-19 Insite Peripherals, Inc. Magnetic media containing reference feature and methods for referencing magnetic head position to the reference feature
US6600631B1 (en) * 1989-11-27 2003-07-29 Censtor Corp. Transducer/flexure/conductor structure for electromagnetic read/write system
JP2784829B2 (ja) * 1990-02-06 1998-08-06 ソニー株式会社 記録信号磁界発生装置
US5103362A (en) * 1990-03-13 1992-04-07 International Business Machines Corporation Method of electrostatically sensing track position information for magnetic recording medium
JPH03290816A (ja) * 1990-04-06 1991-12-20 Sony Corp 記録再生装置及びその記録媒体
JP3166181B2 (ja) * 1991-02-28 2001-05-14 株式会社日立製作所 磁気記憶装置
EP0911809A3 (de) * 1992-01-20 2006-11-15 Fujitsu Limited Magnetkopfanordnung, dessen Herstellung, und Magnetplattengerät
JPH08249602A (ja) * 1995-03-06 1996-09-27 Mitsubishi Electric Corp 磁気式記憶再生方法ならびにそれに用いる磁気再生装置、磁気記憶媒体およびその製法
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
US6775100B1 (en) 1997-05-05 2004-08-10 Seagate Technology Llc Laser assisted track width definition and radial control with magnetic recording
DE10084256T1 (de) 1999-02-22 2002-01-31 Seagate Technology Llc Vergrabene Servo-bemusterte Medien
WO2008075432A1 (ja) * 2006-12-21 2008-06-26 Fujitsu Limited 磁気記録媒体及び磁気記録装置
US20090009906A1 (en) * 2007-07-02 2009-01-08 Seagate Technology Llc Transducer Assembly and Data Storage Device Including the Transducer Assembly
US20090010144A1 (en) * 2007-07-02 2009-01-08 Seagate Technology Llc Transducer Assembly and Data Storage Apparatus Including the Transducer Assembly

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB850895A (en) * 1958-01-29 1960-10-12 Protona Produktionsgeselischaf Stop means for reversible web driving mechanisms
US3593331A (en) * 1969-01-31 1971-07-13 Ncr Co Magnetic disc calibration track with diminishing apertures
US3886052A (en) * 1970-07-20 1975-05-27 Digital Equipment Corp Method of making a magnetic recording disc
DE2354506A1 (de) * 1973-10-31 1975-05-07 Ibm Deutschland Magnetplattenspeicher mit besonderen von den datenspuren getrennten auflagespuren fuer magnetkoepfe und ein verfahren zur herstellung der plattenspeicheranordnung
US4331976A (en) * 1976-04-08 1982-05-25 Victor Company Of Japan, Ltd. High density recording system using side-by-side information and servo tracks
US4322836A (en) * 1976-04-08 1982-03-30 Victor Company Of Japan, Ltd. High density recording system using side-by side information and servo tracks
FR2382742B1 (fr) * 1977-02-09 1985-11-29 Victor Company Of Japan Support pour enregistrer des signaux video et audio et dispositif pour realiser des enregistrements sur ce support
JPS5921104B2 (ja) * 1977-03-08 1984-05-17 日本ビクター株式会社 情報記録媒体再生装置におけるトラッキングサ−ボ装置
US4160268A (en) 1977-03-31 1979-07-03 Victor Company Of Japan, Ltd. Signal pickup device with tracking control and jitter compensation for a video disc
JPS6049971B2 (ja) * 1978-04-27 1985-11-06 松下電器産業株式会社 磁気記録媒体
GB2046480A (en) * 1979-03-27 1980-11-12 Tokyo Shibaura Electric Co Tracking servo and playback system for video disc
JPS56117346A (en) * 1980-02-21 1981-09-14 Pioneer Electronic Corp Information recording medium
DE3114248C2 (de) * 1980-04-10 1984-12-06 Fuji Photo Film Co., Ltd., Minami-Ashigara, Kanagawa Magnetischer Aufzeichnungsträger mit einer Schutzschicht

Also Published As

Publication number Publication date
US4639906A (en) 1987-01-27
GB2096384A (en) 1982-10-13
DE3212884A1 (de) 1982-11-04
JPS57167172A (en) 1982-10-14
GB2096384B (en) 1985-04-11
JPS634272B2 (de) 1988-01-28

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8125 Change of the main classification

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D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee