DE69328593T2 - Optisches Speichermedium - Google Patents

Optisches Speichermedium

Info

Publication number
DE69328593T2
DE69328593T2 DE1993628593 DE69328593T DE69328593T2 DE 69328593 T2 DE69328593 T2 DE 69328593T2 DE 1993628593 DE1993628593 DE 1993628593 DE 69328593 T DE69328593 T DE 69328593T DE 69328593 T2 DE69328593 T2 DE 69328593T2
Authority
DE
Germany
Prior art keywords
storage medium
optical storage
optical
medium
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
DE1993628593
Other languages
English (en)
Other versions
DE69328593D1 (de
Inventor
Shin-Ichi Kadowaki
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.)
Panasonic Corp
Original Assignee
Panasonic 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 to JP20481992 priority Critical
Priority to JP20482092 priority
Priority to JP20482392 priority
Application filed by Panasonic Corp filed Critical Panasonic Corp
Application granted granted Critical
Publication of DE69328593D1 publication Critical patent/DE69328593D1/de
Publication of DE69328593T2 publication Critical patent/DE69328593T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0901Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam 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 only
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermo-magnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/1055Disposition or mounting of transducers relative to record carriers
    • G11B11/10576Disposition or mounting of transducers relative to record carriers with provision for moving the transducers for maintaining alignment or spacing relative to the carrier
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/012Recording on, or reproducing or erasing from, magnetic disks
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48Disposition 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
    • G11B5/58Disposition 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
    • G11B5/596Disposition 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
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/007Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/00745Sectoring or header formats within a track
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0938Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following servo format, e.g. guide tracks, pilot signals
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/094Methods and circuits for servo offset compensation
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0941Methods and circuits for servo gain or phase compensation during operation
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0901Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam 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 only
    • G11B7/0904Dithered tracking systems
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0908Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0908Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only
    • G11B7/0909Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only by astigmatic methods
DE1993628593 1992-07-31 1993-07-30 Optisches Speichermedium Expired - Fee Related DE69328593T2 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP20481992 1992-07-31
JP20482092 1992-07-31
JP20482392 1992-07-31

Publications (2)

Publication Number Publication Date
DE69328593D1 DE69328593D1 (de) 2000-06-15
DE69328593T2 true DE69328593T2 (de) 2001-01-04

Family

ID=27328412

Family Applications (2)

Application Number Title Priority Date Filing Date
DE1993630232 Expired - Fee Related DE69330232T2 (de) 1992-07-31 1993-07-30 Vorrichtung zur optischen Aufzeichnung/Wiedergabe von Daten
DE1993628593 Expired - Fee Related DE69328593T2 (de) 1992-07-31 1993-07-30 Optisches Speichermedium

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE1993630232 Expired - Fee Related DE69330232T2 (de) 1992-07-31 1993-07-30 Vorrichtung zur optischen Aufzeichnung/Wiedergabe von Daten

Country Status (3)

Country Link
US (2) US5406545A (de)
EP (2) EP0582446B1 (de)
DE (2) DE69330232T2 (de)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5815485A (en) * 1993-02-02 1998-09-29 Matsushita Electric Industrial Co., Ltd. Recording medium, a method for producing the same, a control method using the recording medium, and a recording/reproducing apparatus using the recording medium
US5517485A (en) * 1993-02-26 1996-05-14 Matsushita Electric Industrial Co., Ltd. Optical information recording medium having first and second tracks and apparatus for recording to and reproducing from the medium
JP3300138B2 (ja) * 1993-11-19 2002-07-08 パイオニア株式会社 光ディスク
US5561655A (en) * 1994-12-02 1996-10-01 Eastman Kodak Company Apparatus and method for differential tracking in a magneto-optic data storage system using mark edge detection
JPH08329507A (ja) * 1995-05-30 1996-12-13 Sharp Corp トラッキング補正方法及びその装置並びに光ディスク
US6009054A (en) * 1995-07-10 1999-12-28 Matsushita Electric Industrial Co., Ltd. Information recording medium and tracking error signal detection apparatus and magnetic recording apparatus and method of adjusting the magnetic recording apparatus
US5892741A (en) * 1995-07-10 1999-04-06 Matsushita Electric Industrial Co., Ltd. Information recording medium and tracking error signal detection apparatus and magnetic recording apparatus and method of adjusting the magnetic recording apparatus
US6728192B1 (en) 1995-07-10 2004-04-27 Matsushita Electric Industrial Co., Ltd. Tracking error signal detection system for optical recording medium
JPH1091983A (ja) * 1996-09-12 1998-04-10 Sony Corp 光学式ディスク装置およびトラッキングエラー信号算出回路
JPH1091971A (ja) * 1996-09-12 1998-04-10 Sony Corp 光学式ディスク装置のトラッキング制御装置とその方法
WO1999018576A2 (en) * 1997-10-06 1999-04-15 Koninklijke Philips Electronics N.V. An apparatus for reading and/or writing information from/on a recording medium
US6495948B1 (en) 1998-03-02 2002-12-17 Pyrotek Enterprises, Inc. Spark plug
US6545831B1 (en) * 1998-04-09 2003-04-08 Dcard, Inc. Servo-sector arrangement over several data arcs for a rotational head data recording and retrieving system
US6266298B1 (en) * 1998-05-22 2001-07-24 Excel Precision Corporation Apparatus and method for inscribing, optically detecting, and using a clock pattern to write a servo pattern in an information storage unit
CN1154985C (zh) 1998-07-03 2004-06-23 株式会社日立制作所 光检测器、信号处理电路、及其光信息再现设备
US6154426A (en) * 1998-12-08 2000-11-28 Matsushita Electric Industrial Co., Ltd. Optical pick-up head unit and information record and playback equipment using the optical pick-up head unit
US6810002B1 (en) 1999-01-12 2004-10-26 Matsushita Electric Industrial Co., Ltd. Information storing medium with guide tracks and information tracks
JP2000339717A (ja) * 1999-05-31 2000-12-08 Matsushita Electric Ind Co Ltd 光ディスク記録再生装置
JP3914018B2 (ja) * 2001-09-26 2007-05-16 株式会社リコー ウォブル信号検出装置及び光学的情報記録再生装置
KR101047675B1 (ko) * 2003-12-04 2011-07-08 파나소닉 주식회사 광학 정보 재생 장치
JP4032310B2 (ja) * 2004-06-03 2008-01-16 ソニー株式会社 トラッキング誤差検出器
US7869312B1 (en) * 2006-06-07 2011-01-11 Marvell International Ltd. Calibration based DC coupled analog front end for optical storage system
US7535668B2 (en) * 2006-08-28 2009-05-19 International Business Machines Corporation Modulated timing based servo pattern strings for magnetic-based storage media
US7960044B2 (en) * 2009-03-27 2011-06-14 Hitachi Global Storage Technologies Netherlands B.V. Patterned-media perpendicular magnetic recording disk with servo regions having magnetized servo pillars and oppositely-magnetized servo trenches

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR205243A1 (es) * 1972-05-11 1976-04-21 Philips Nv Aparato para la lectura de un portador de grabacion reflector plano
US4079247A (en) * 1975-05-16 1978-03-14 Claude Bricot Optical focussing device
FR2271590B1 (de) * 1974-01-15 1978-12-01 Thomson Brandt
US3919697A (en) * 1974-06-26 1975-11-11 Battelle Development Corp Data record tracking using track identifying information in the gaps between recorded data groups
NL177157C (en) * 1975-02-28 1985-08-01 Philips Nv Device for reading a flat record carrier with an optically readable information structure.
FR2511537B1 (fr) * 1981-08-14 1986-09-05 Thomson Csf Dispositif optique de suivi de piste a echantillonnage
FR2613865B1 (fr) * 1982-03-12 1995-09-01 Thomson Csf Support d'information mobile pregrave et dispositif optique de suivi de piste mettant en oeuvre un tel support
FR2523347B1 (fr) * 1982-03-12 1988-11-04 Thomson Csf Support d'information mobile pregrave et dispositif optique de suivi de piste mettant en oeuvre un tel support
US4587644A (en) * 1982-11-11 1986-05-06 Sony Corporation Tracking servocontrol circuits for reducing gain to avoid tracking defect in an optical reproducing apparatus
JPS60143441A (en) * 1983-12-29 1985-07-29 Nec Home Electronics Ltd Tracking error detecting circuit
JPS61230637A (en) * 1985-04-05 1986-10-14 Sony Corp Tracking error detecting device
US4779253A (en) * 1985-07-30 1988-10-18 Laser Magnetic Storage International Company Sampled servo for an optical disk drive
JPS62159351A (en) * 1986-01-08 1987-07-15 Victor Co Of Japan Ltd Detecting system for tracking error signal of optical information signal reproducing device
US4864552A (en) * 1986-08-29 1989-09-05 Laser Magnetic Storage International Company Driving signal for coarse servo employing sampled offset signal
KR910008503B1 (ko) * 1987-03-13 1991-10-18 시기 모리야 광 디스크
JP2619381B2 (ja) * 1987-03-20 1997-06-11 株式会社日立製作所 光学的情報再生装置
JPH0547895B2 (de) * 1987-08-12 1993-07-20 Canon Kk
JP2764960B2 (ja) * 1988-11-16 1998-06-11 松下電器産業株式会社 記録再生方法
JP2589814B2 (ja) * 1989-07-19 1997-03-12 松下電器産業株式会社 クロック抽出装置およびトラッキング誤差信号採取装置
US5268887A (en) * 1990-05-15 1993-12-07 Kabushiki Kaisha Toshiba Optical recording medium having offset-compensating areas
JP2926899B2 (ja) * 1990-05-31 1999-07-28 ソニー株式会社 光ディスク
JP2870127B2 (ja) * 1990-05-31 1999-03-10 ソニー株式会社 トラッキング制御方法
US5270991A (en) * 1990-06-29 1993-12-14 North American Philips Corporation Track format for use with an optical record carrier having a varying track pitch
US5295127A (en) * 1992-12-22 1994-03-15 North American Philips Corporation Optical data recorder with segment synchronization marks

Also Published As

Publication number Publication date
US5406545A (en) 1995-04-11
DE69330232D1 (de) 2001-06-21
DE69330232T2 (de) 2002-01-10
EP0582446A2 (de) 1994-02-09
EP0582446A3 (de) 1994-02-23
EP0793220A3 (de) 1998-08-19
EP0582446B1 (de) 2000-05-10
EP0793220B1 (de) 2001-05-16
US5650987A (en) 1997-07-22
EP0793220A2 (de) 1997-09-03
DE69328593D1 (de) 2000-06-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee