WO2004074908A3 - Medium for optical recording and apparatus for optical information processing - Google Patents

Medium for optical recording and apparatus for optical information processing Download PDF

Info

Publication number
WO2004074908A3
WO2004074908A3 PCT/JP2004/002046 JP2004002046W WO2004074908A3 WO 2004074908 A3 WO2004074908 A3 WO 2004074908A3 JP 2004002046 W JP2004002046 W JP 2004002046W WO 2004074908 A3 WO2004074908 A3 WO 2004074908A3
Authority
WO
WIPO (PCT)
Prior art keywords
medium
recording
pit
optical
information processing
Prior art date
Application number
PCT/JP2004/002046
Other languages
French (fr)
Other versions
WO2004074908A2 (en
Inventor
Hideaki Hirai
Original Assignee
Ricoh Kk
Hideaki Hirai
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 Ricoh Kk, Hideaki Hirai filed Critical Ricoh Kk
Priority to EP04713220A priority Critical patent/EP1599872A2/en
Priority to US10/537,830 priority patent/US7382715B2/en
Publication of WO2004074908A2 publication Critical patent/WO2004074908A2/en
Publication of WO2004074908A3 publication Critical patent/WO2004074908A3/en

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
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085—Pits
    • G11B7/24088—Pits for storing more than two values, i.e. multi-valued recording for data or prepits
    • 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
    • G11B7/0079—Zoned data area, e.g. having different data structures or formats for the user data within data layer, Zone Constant Linear Velocity [ZCLV], Zone Constant Angular Velocity [ZCAV], carriers with RAM and ROM areas
    • 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition 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
    • G11B7/0901—Disposition 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
    • G11B7/0903—Multi-beam tracking systems
    • 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition 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
    • G11B7/0941—Methods and circuits for servo gain or phase compensation during operation
    • 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
    • G11B7/24085—Pits

Abstract

A medium for optical recording is disclosed, from which recorded information is reproduced by a laser beam. The medium includes a disk board having a recording surface, and multiple pits in the recording surface. The pits are included in cells having equal size and varying pit-occupancy rates dependent on the recording information, the pit-occupancy rate being the ratio of area of the pit to area of the corresponding cell. The depths H of the pits, the wavelength λ of the laser beam, and the refractive index n of the board are related as, λ /6n < H < λ /4n.
PCT/JP2004/002046 2003-02-24 2004-02-20 Medium for optical recording and apparatus for optical information processing WO2004074908A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04713220A EP1599872A2 (en) 2003-02-24 2004-02-20 Medium for optical recording and apparatus for optical information processing
US10/537,830 US7382715B2 (en) 2003-02-24 2004-02-20 Optical recording medium having relationship between pit depths, wavelength and refractive index

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2003046417 2003-02-24
JP2003-046417 2003-02-24
JP2003339564A JP2004281027A (en) 2003-02-24 2003-09-30 Optical recording medium and optical information processing device
JP2003-339564 2003-09-30

Publications (2)

Publication Number Publication Date
WO2004074908A2 WO2004074908A2 (en) 2004-09-02
WO2004074908A3 true WO2004074908A3 (en) 2005-01-27

Family

ID=32911440

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2004/002046 WO2004074908A2 (en) 2003-02-24 2004-02-20 Medium for optical recording and apparatus for optical information processing

Country Status (4)

Country Link
US (1) US7382715B2 (en)
EP (1) EP1599872A2 (en)
JP (1) JP2004281027A (en)
WO (1) WO2004074908A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2008128493A (en) * 2005-12-13 2010-01-20 Конинклейке Филипс Электроникс Н.В. (Nl) RADIAL TILT ASSESSMENT BY THE DIAGONAL TWO-STAGE SIGNAL
JP2007207357A (en) * 2006-02-02 2007-08-16 Canon Inc Optical information reproducing method and device
WO2008059952A1 (en) * 2006-11-16 2008-05-22 Panasonic Corporation Optical information reproducing device tracking apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5757763A (en) * 1994-07-12 1998-05-26 Massachusetts Institute Of Technology Optical information storage via amplitude modulation
US6175548B1 (en) * 1998-06-29 2001-01-16 Sony Corporation Optical recording medium and optical recording and reproducing apparatus
EP1197963A2 (en) * 2000-10-10 2002-04-17 TDK Corporation Optical recording medium and method

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58215735A (en) 1982-06-07 1983-12-15 Sony Corp Optical disc recording method
JPH0430094A (en) 1990-05-26 1992-02-03 Kumagai Gumi Co Ltd Starting device and starting method of shield excavator for inclined shaft
EP0578015B1 (en) * 1992-06-17 1998-12-09 Matsushita Electric Industrial Co., Ltd. Optical information recording medium
JPH07121881A (en) 1993-10-27 1995-05-12 Hitachi Ltd Optical information recording and reproducing method
US5602825A (en) * 1994-01-19 1997-02-11 Kabushiki Kaisha Toshiba Optical disk and optical disk apparatus
KR100454379B1 (en) * 1995-12-28 2004-12-17 소니 가부시끼 가이샤 Optical Disk
JP3065529B2 (en) * 1996-03-12 2000-07-17 株式会社リコー Optical information recording medium and tracking servo method for optical information recording medium
JP3866016B2 (en) * 1999-07-02 2007-01-10 Ｔｄｋ株式会社 Optical information medium and reproducing method thereof
US6678236B1 (en) * 1999-08-24 2004-01-13 Victor Company Of Japan, Ltd. Information recording medium method and apparatus for recording and reproducing information
JP3490356B2 (en) * 1999-09-29 2004-01-26 シャープ株式会社 Optical recording medium, master for optical recording medium and method of manufacturing the same
KR100644581B1 (en) 1999-10-30 2006-11-13 삼성전자주식회사 Tracking error signal detecting apparatus and reproducing signal detecting apparatus
DE60040050D1 (en) * 1999-11-25 2008-10-09 Victor Company Of Japan Optical information recording medium, and substrate and manufacturing method for the optical information recording medium
JP2001291244A (en) * 2000-04-04 2001-10-19 Sharp Corp Optical recording medium, method and device for reproducing optical recording information
KR100636121B1 (en) * 2000-05-23 2006-10-18 삼성전자주식회사 Optical pickup apparatus
KR100694036B1 (en) * 2000-06-01 2007-03-12 삼성전자주식회사 Disc with grooves and pits of different depths and method for manufacturing thereof
US6808778B2 (en) 2000-07-04 2004-10-26 Tdk Corporation Optical recording medium
JP3914704B2 (en) 2000-11-17 2007-05-16 株式会社リコー Multi-value recording / reproducing optical information recording medium, recording / reproducing method and recording / reproducing apparatus using the same
KR100408401B1 (en) 2001-02-23 2003-12-06 삼성전자주식회사 Optical recording/reproducing apparatus and method for detecting tracking error signal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5757763A (en) * 1994-07-12 1998-05-26 Massachusetts Institute Of Technology Optical information storage via amplitude modulation
US6175548B1 (en) * 1998-06-29 2001-01-16 Sony Corporation Optical recording medium and optical recording and reproducing apparatus
EP1197963A2 (en) * 2000-10-10 2002-04-17 TDK Corporation Optical recording medium and method

Also Published As

Publication number Publication date
US20060013119A1 (en) 2006-01-19
EP1599872A2 (en) 2005-11-30
US7382715B2 (en) 2008-06-03
JP2004281027A (en) 2004-10-07
WO2004074908A2 (en) 2004-09-02

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