WO2008117374A1 - Information recording medium, and reproducer - Google Patents

Information recording medium, and reproducer Download PDF

Info

Publication number
WO2008117374A1
WO2008117374A1 PCT/JP2007/056028 JP2007056028W WO2008117374A1 WO 2008117374 A1 WO2008117374 A1 WO 2008117374A1 JP 2007056028 W JP2007056028 W JP 2007056028W WO 2008117374 A1 WO2008117374 A1 WO 2008117374A1
Authority
WO
WIPO (PCT)
Prior art keywords
recording medium
region
information recording
concavo
convex shapes
Prior art date
Application number
PCT/JP2007/056028
Other languages
French (fr)
Japanese (ja)
Inventor
Eiji Muramatsu
Kazuo Kuroda
Kunihiko Horikawa
Atsushi Yamaguchi
Kazutoshi Kitano
Masahiro Miura
Original Assignee
Pioneer Corporation
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 Pioneer Corporation filed Critical Pioneer Corporation
Priority to PCT/JP2007/056028 priority Critical patent/WO2008117374A1/en
Priority to JP2009506092A priority patent/JP4531851B2/en
Publication of WO2008117374A1 publication Critical patent/WO2008117374A1/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
    • G11B7/004—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
    • G11B7/007—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
    • G11B7/24—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

  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

An information recording medium (100) has a first region (102) where pits (102a) having concavo-convex shapes for carrying data information are formed, and a second region (101) where the characteristic information (101b) on the concavo-convex shapes for performing gap control for the pits is recorded by a pattern (101a) flatter than that of the concavo-convex shapes. When the characteristic information is read out at first from the second region at the time of reproduction, collision against the information recording medium can be avoided surely even in the case of an optical pickup utilizing a solid immersion lens when the data information is read out at the first region.
PCT/JP2007/056028 2007-03-23 2007-03-23 Information recording medium, and reproducer WO2008117374A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2007/056028 WO2008117374A1 (en) 2007-03-23 2007-03-23 Information recording medium, and reproducer
JP2009506092A JP4531851B2 (en) 2007-03-23 2007-03-23 Information recording medium and reproducing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/056028 WO2008117374A1 (en) 2007-03-23 2007-03-23 Information recording medium, and reproducer

Publications (1)

Publication Number Publication Date
WO2008117374A1 true WO2008117374A1 (en) 2008-10-02

Family

ID=39788119

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/056028 WO2008117374A1 (en) 2007-03-23 2007-03-23 Information recording medium, and reproducer

Country Status (2)

Country Link
JP (1) JP4531851B2 (en)
WO (1) WO2008117374A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11312363A (en) * 1998-04-28 1999-11-09 Sony Corp Optical recording medium and optical recorder
JP2001143260A (en) * 1999-11-10 2001-05-25 Hitachi Ltd Information recording and reproducing method and disk used for it

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002319153A (en) * 2001-04-19 2002-10-31 Sony Corp Signal reproducing device and signal detecting method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11312363A (en) * 1998-04-28 1999-11-09 Sony Corp Optical recording medium and optical recorder
JP2001143260A (en) * 1999-11-10 2001-05-25 Hitachi Ltd Information recording and reproducing method and disk used for it

Also Published As

Publication number Publication date
JPWO2008117374A1 (en) 2010-07-08
JP4531851B2 (en) 2010-08-25

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