BRPI0403931A - Meio de gravação óptica, método de fabricação para meio de gravação óptica, e método de reprodução para meio de gravação óptica - Google Patents

Meio de gravação óptica, método de fabricação para meio de gravação óptica, e método de reprodução para meio de gravação óptica

Info

Publication number
BRPI0403931A
BRPI0403931A BR0403931-9A BRPI0403931A BRPI0403931A BR PI0403931 A BRPI0403931 A BR PI0403931A BR PI0403931 A BRPI0403931 A BR PI0403931A BR PI0403931 A BRPI0403931 A BR PI0403931A
Authority
BR
Brazil
Prior art keywords
optical recording
recording medium
reflection film
manufacturing
information area
Prior art date
Application number
BR0403931-9A
Other languages
English (en)
Inventor
Yuko Kawaguchi
Shinya Abe
Morio Tomiyama
Eiji Ohno
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of BRPI0403931A publication Critical patent/BRPI0403931A/pt

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers
    • G11B7/258—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers of reflective layers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording 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
    • G11B7/007—Arrangement 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
    • G11B7/00736—Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
    • G11B7/0053—Reproducing non-user data, e.g. wobbled address, prepits, BCA
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording 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
    • G11B7/007—Arrangement 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • G11B7/268—Post-production operations, e.g. initialising phase-change recording layers, checking for defects
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G11B20/00217—Circuits 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
    • G11B20/00253—Circuits 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 wherein the key is stored on the record carrier
    • G11B20/0026—Circuits 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 wherein the key is stored on the record carrier the key being stored as a barcode
    • G11B20/00268—Circuits 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 wherein the key is stored on the record carrier the key being stored as a barcode said barcode being recorded in a burst cutting area [BCA]
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24073—Tracks
    • G11B7/24079—Width or depth

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Manufacturing Optical Record Carriers (AREA)

Abstract

"MEIO DE GRAVAçãO óPTICA, MéTODO DE FABRICAçãO PARA MEIO DE GRAVAçãO óPTICA, E MéTODO DE REPRODUçãO PARA MEIO DE GRAVAçãO óPTICA". Um meio de gravação óptica que inclui uma área de informação principal na qual uma película de reflexão metálica é formada em um substrato em que uma linha de covas é formada como dados principais, e uma área de sub-informação em que a informação de identificação do meio é gravada que é utilizada para identificar individualmente o meio de gravação óptica ao remover parcialmente a película de reflexão metálica e formar uma pluralidade de áreas com pelicula de reflexão removidas; e cuja informação é reproduzida ao irradiar a pelicula de reflexão metálica com um feixe de luz, em que na área de sub-informação, uma linha de covas ou um sulco é formado no substrato, e a declividade da trilha da linha de covas ou no sulco é de 0,24 gm ou mais larga e de 0,45 gm ou mais estreita.
BR0403931-9A 2003-04-14 2004-03-16 Meio de gravação óptica, método de fabricação para meio de gravação óptica, e método de reprodução para meio de gravação óptica BRPI0403931A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003108549A JP4170132B2 (ja) 2003-04-14 2003-04-14 光記録媒体
PCT/JP2004/003459 WO2004093066A1 (ja) 2003-04-14 2004-03-16 光記録媒体、光記録媒体の製造方法及び光記録媒体の再生方法

Publications (1)

Publication Number Publication Date
BRPI0403931A true BRPI0403931A (pt) 2005-01-04

Family

ID=33156936

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0403931-9A BRPI0403931A (pt) 2003-04-14 2004-03-16 Meio de gravação óptica, método de fabricação para meio de gravação óptica, e método de reprodução para meio de gravação óptica

Country Status (15)

Country Link
US (4) US7808881B2 (pt)
EP (4) EP2242050B1 (pt)
JP (1) JP4170132B2 (pt)
KR (1) KR100674302B1 (pt)
CN (1) CN1698099A (pt)
AT (4) ATE515024T1 (pt)
AU (1) AU2004214550B2 (pt)
BR (1) BRPI0403931A (pt)
CA (1) CA2477869A1 (pt)
DE (1) DE602004024946D1 (pt)
ES (4) ES2370701T3 (pt)
MX (1) MXPA04011159A (pt)
PL (4) PL2242050T3 (pt)
RU (1) RU2279723C2 (pt)
WO (1) WO2004093066A1 (pt)

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Also Published As

Publication number Publication date
WO2004093066A1 (ja) 2004-10-28
US7948860B2 (en) 2011-05-24
PL2242050T3 (pl) 2012-03-30
MXPA04011159A (es) 2005-01-25
ATE454699T1 (de) 2010-01-15
ATE525723T1 (de) 2011-10-15
EP2242050A3 (en) 2010-12-22
US20080298221A1 (en) 2008-12-04
EP2242050B1 (en) 2011-10-12
US7821909B2 (en) 2010-10-26
ES2370701T3 (es) 2011-12-21
ES2369878T3 (es) 2011-12-07
EP2146347B1 (en) 2011-06-29
EP1524652A1 (en) 2005-04-20
EP2244257A3 (en) 2010-12-22
RU2279723C2 (ru) 2006-07-10
DE602004024946D1 (de) 2010-02-25
PL1524652T3 (pl) 2010-06-30
ES2339019T3 (es) 2010-05-14
JP2004318938A (ja) 2004-11-11
US8116193B2 (en) 2012-02-14
AU2004214550B2 (en) 2005-03-17
EP2244257B1 (en) 2011-09-21
ES2366428T3 (es) 2011-10-20
EP1524652B1 (en) 2010-01-06
KR100674302B1 (ko) 2007-01-24
US7808881B2 (en) 2010-10-05
US20090073848A1 (en) 2009-03-19
US20100322056A1 (en) 2010-12-23
ATE528756T1 (de) 2011-10-15
AU2004214550A1 (en) 2004-10-28
PL2146347T3 (pl) 2011-11-30
US20050201260A1 (en) 2005-09-15
PL2244257T3 (pl) 2012-02-29
ATE515024T1 (de) 2011-07-15
CA2477869A1 (en) 2004-10-14
EP2244257A2 (en) 2010-10-27
CN1698099A (zh) 2005-11-16
EP2146347A1 (en) 2010-01-20
JP4170132B2 (ja) 2008-10-22
KR20050071367A (ko) 2005-07-07
EP2242050A2 (en) 2010-10-20
EP1524652A4 (en) 2009-01-14
RU2004133023A (ru) 2006-02-27

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