ATE456849T1 - Optisches aufzeichnungsmedium, aufzeichnungsgerät für optisches aufzeichnungsmedium, aufzeichnungsverfahren dafür, wiedergabegerät und wiedergabeverfahren dafür - Google Patents

Optisches aufzeichnungsmedium, aufzeichnungsgerät für optisches aufzeichnungsmedium, aufzeichnungsverfahren dafür, wiedergabegerät und wiedergabeverfahren dafür

Info

Publication number
ATE456849T1
ATE456849T1 AT99973341T AT99973341T ATE456849T1 AT E456849 T1 ATE456849 T1 AT E456849T1 AT 99973341 T AT99973341 T AT 99973341T AT 99973341 T AT99973341 T AT 99973341T AT E456849 T1 ATE456849 T1 AT E456849T1
Authority
AT
Austria
Prior art keywords
data
recording medium
optical recording
recording
playbacker
Prior art date
Application number
AT99973341T
Other languages
English (en)
Inventor
Yoichiro Sako
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
Application filed by Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of ATE456849T1 publication Critical patent/ATE456849T1/de

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085Pits
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G11B20/00217Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00572Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
    • G11B20/00586Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the physical format of the recording medium
    • G11B20/00594Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the physical format of the recording medium wherein the shape of recording marks is altered, e.g. the depth, width, or length of pits
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00572Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
    • G11B20/00586Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the physical format of the recording medium
    • G11B20/00601Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the physical format of the recording medium wherein properties of tracks are altered, e.g., by changing the wobble pattern or the track pitch, or by adding interruptions or eccentricity
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00731Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction
    • G11B20/00746Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number
    • G11B20/00753Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number wherein the usage restriction limits the number of copies that can be made, e.g. CGMS, SCMS, or CCI flags
    • G11B20/00768Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number wherein the usage restriction limits the number of copies that can be made, e.g. CGMS, SCMS, or CCI flags wherein copy control information is used, e.g. for indicating whether a content may be copied freely, no more, once, or never, by setting CGMS, SCMS, or CCI flags
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/12Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/14Digital recording or reproducing using self-clocking codes
    • G11B20/1403Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B20/1423Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
    • G11B20/1426Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof
    • 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
    • G11B7/004Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0045Recording
    • 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
    • G11B7/004Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005Reproducing
    • 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
    • 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
    • G11B7/24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/26Apparatus or processes specially adapted for the manufacture of record carriers
    • G11B7/261Preparing a master, e.g. exposing photoresist, electroforming
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/10527Audio or video recording; Data buffering arrangements
    • 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
    • G11B2007/00754Track shape, e.g. address or synchronisation information in wobbled track or sidewall
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/12Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B2020/1264Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
    • G11B2020/1265Control data, system data or management information, i.e. data used to access or process user data
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/14Digital recording or reproducing using self-clocking codes
    • G11B20/1403Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B20/1423Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
    • G11B20/1426Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof
    • G11B2020/14618 to 14 modulation, e.g. the EFM code used on CDs or mini-discs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/20Disc-shaped record carriers
    • G11B2220/25Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537Optical discs
    • G11B2220/2545CDs
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
AT99973341T 1998-12-07 1999-12-07 Optisches aufzeichnungsmedium, aufzeichnungsgerät für optisches aufzeichnungsmedium, aufzeichnungsverfahren dafür, wiedergabegerät und wiedergabeverfahren dafür ATE456849T1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP34643998 1998-12-07
JP37068298 1998-12-25
JP23138999 1999-08-18
PCT/JP1999/006859 WO2000034948A1 (fr) 1998-12-07 1999-12-07 Support d'enregistrement optique, enregistreur pour support d'enregistrement optique, procede d'enregistrement correspondant, dispositif de reproduction et procede de reproduction correspondant

Publications (1)

Publication Number Publication Date
ATE456849T1 true ATE456849T1 (de) 2010-02-15

Family

ID=27331760

Family Applications (1)

Application Number Title Priority Date Filing Date
AT99973341T ATE456849T1 (de) 1998-12-07 1999-12-07 Optisches aufzeichnungsmedium, aufzeichnungsgerät für optisches aufzeichnungsmedium, aufzeichnungsverfahren dafür, wiedergabegerät und wiedergabeverfahren dafür

Country Status (9)

Country Link
US (3) US6810004B1 (de)
EP (1) EP1059632B1 (de)
KR (2) KR100797971B1 (de)
CN (2) CN100409333C (de)
AT (1) ATE456849T1 (de)
AU (1) AU771285B2 (de)
CA (1) CA2319371C (de)
DE (1) DE69941978D1 (de)
WO (1) WO2000034948A1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000242929A (ja) * 1998-12-07 2000-09-08 Sony Corp データ記録方法および装置、データ再生方法および装置、並びに記録媒体
JP4292434B2 (ja) 1999-03-30 2009-07-08 ソニー株式会社 光ディスク、光ディスク記録装置、光ディスクの記録方法、光ディスク再生装置及び光ディスクの再生方法
AU4783500A (en) * 1999-05-31 2000-12-18 Matsushita Electric Industrial Co., Ltd. Optical information recording method, optical information recording device and optical information recording medium
EP1577885A3 (de) * 2000-09-22 2007-12-12 Matsushita Electric Industrial Co., Ltd. Optische Platte und Wiedergabeverfahren, Wiedergabegerät und Aufzeichnungsgerät dafür
CN1308937C (zh) * 2000-10-27 2007-04-04 松下电器产业株式会社 光盘、记录装置和方法以及再现装置和方法
JP4281252B2 (ja) 2001-01-16 2009-06-17 ソニー株式会社 情報記録装置、情報再生装置、情報記録方法、情報再生方法、および情報記録媒体、並びにプログラム記憶媒体
CN1264145C (zh) * 2001-06-08 2006-07-12 新力光碟科技股份有限公司 数据记录方法及数据记录装置
JP3870734B2 (ja) * 2001-07-31 2007-01-24 ソニー株式会社 記録媒体の再生装置および方法、並びに記録再生装置
JP3754917B2 (ja) * 2001-12-05 2006-03-15 ソニー株式会社 データ記録媒体、データ記録方法および装置
CA2526467C (en) * 2003-05-20 2015-03-03 Kagutech Ltd. Digital backplane recursive feedback control
JP3988052B2 (ja) 2004-01-29 2007-10-10 ソニー株式会社 光ディスク記録装置、光ディスク記録方法、光ディスク、光ディスク再生装置および光ディスク再生方法
JP2006252743A (ja) * 2005-03-08 2006-09-21 Qinghua Univ マルチレベル読み出し専用光ディスク及びその製造方法
JP4440207B2 (ja) * 2005-12-14 2010-03-24 太陽誘電株式会社 光情報記録再生装置、光情報記録処理方法、光情報記録媒体、プログラム、及び中央演算装置
JP2009187634A (ja) * 2008-02-07 2009-08-20 Sony Corp 光ディスク記録装置、記録方法、光ディスク及び光ディスク再生装置
JP2009266285A (ja) * 2008-04-23 2009-11-12 Sony Corp 光情報記録装置、光情報記録方法、光情報再生装置、光情報再生方法及び光情報記録媒体
US7920354B2 (en) * 2008-09-15 2011-04-05 Seagate Technology Llc Phase servo patterns for bit patterned media
US8947809B2 (en) * 2008-09-19 2015-02-03 Seagate Technology Llc Encoding scheme for bit patterned media
JP5257261B2 (ja) * 2009-06-18 2013-08-07 ソニー株式会社 光情報再生装置及び光情報再生方法

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60242532A (ja) * 1985-01-25 1985-12-02 Hitachi Ltd 情報記録担体
JPS63153743A (ja) * 1986-07-10 1988-06-27 Hitachi Maxell Ltd 光情報記録媒体及びその製造方法
JPH0474317A (ja) * 1990-07-13 1992-03-09 Matsushita Electric Ind Co Ltd 光学的記録再生方法および記録再生装置ならびに記録媒体
EP0545472B1 (de) * 1991-12-02 1999-10-20 Koninklijke Philips Electronics N.V. Geschlossenes Informationssystem mit Kopierschutz
JPH05205274A (ja) * 1992-01-24 1993-08-13 Hitachi Ltd 情報の再生方法
KR100254509B1 (ko) * 1992-02-14 2000-05-01 이데이 노부유끼 정보 기록 매체,정보 기록 장치,정보 재생 장치 및 정보 기록 재생 장치
JP2776209B2 (ja) * 1993-07-22 1998-07-16 日本ビクター株式会社 光ディスク及び情報記録再生装置
TW241360B (de) * 1993-07-29 1995-02-21 Nippon Pickter Kk
JPH07169102A (ja) * 1993-12-14 1995-07-04 Nikon Corp 情報記録担体
EP1244095B1 (de) * 1993-12-28 2006-12-27 Matsushita Electric Industrial Co., Ltd. Optische Platte, Wiedergabegerät und Aufzeichnungsgerät
JP2778617B2 (ja) * 1994-08-29 1998-07-23 日本ビクター株式会社 ディジタル変復調方法,その装置,記録媒体,その製造方法
JPH0877599A (ja) * 1994-09-02 1996-03-22 Pioneer Video Corp 記録装置及び光ディスク再生装置
TW309612B (de) 1994-09-22 1997-07-01 Nippon Bickter Kk
JP3503767B2 (ja) * 1994-10-21 2004-03-08 日本ビクター株式会社 光記録媒体
JPH08147704A (ja) * 1994-11-18 1996-06-07 Sony Corp ディスク状記録媒体、ディスク再生方法及び再生装置
JPH08315368A (ja) * 1995-05-19 1996-11-29 Victor Co Of Japan Ltd 光学的記録、再生方法、光学的記録、再生装置及び記録媒体
JP3476647B2 (ja) * 1996-04-19 2003-12-10 シャープ株式会社 光ディスク、光ディスク製造装置および光ディスク記録再生装置
KR100489912B1 (ko) * 1996-06-27 2005-09-14 코닌클리케 필립스 일렉트로닉스 엔.브이. 보조정보를포함하는정보매체,판독장치및그정보매체를제조하는방법
JP3292295B2 (ja) 1997-12-18 2002-06-17 ソニー株式会社 光ディスク記録装置、光ディスク記録方法、光ディスク、光ディスク再生装置
US6587948B1 (en) * 1998-02-13 2003-07-01 Sony Corporation Recording apparatus, recording medium, playback apparatus, recording method and playback method
JP2000057579A (ja) * 1998-08-10 2000-02-25 Sony Corp 光ディスク、光ディスクの記録方法及び光ディスクの原盤の製造装置
JP3520774B2 (ja) * 1998-08-12 2004-04-19 ソニー株式会社 光ディスク再生装置および光ディスク再生方法
JP2000242929A (ja) * 1998-12-07 2000-09-08 Sony Corp データ記録方法および装置、データ再生方法および装置、並びに記録媒体
US6388985B1 (en) * 1999-09-27 2002-05-14 Industrial Technology Research Institute Data recording method for optical disc

Also Published As

Publication number Publication date
US6810004B1 (en) 2004-10-26
CN1203470C (zh) 2005-05-25
CA2319371C (en) 2011-08-30
KR20060091325A (ko) 2006-08-18
US7539107B2 (en) 2009-05-26
CN1295706A (zh) 2001-05-16
EP1059632A1 (de) 2000-12-13
US20050036412A1 (en) 2005-02-17
EP1059632B1 (de) 2010-01-27
KR100797971B1 (ko) 2008-01-24
KR20010040613A (ko) 2001-05-15
CA2319371A1 (en) 2000-06-15
AU1416200A (en) 2000-06-26
CN100409333C (zh) 2008-08-06
KR100703123B1 (ko) 2007-04-05
CN1547197A (zh) 2004-11-17
US20080186835A1 (en) 2008-08-07
DE69941978D1 (de) 2010-03-18
EP1059632A4 (de) 2007-01-10
US7397748B2 (en) 2008-07-08
AU771285B2 (en) 2004-03-18
WO2000034948A1 (fr) 2000-06-15

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