WO1999062061A8 - Optical recording medium - Google Patents

Optical recording medium

Info

Publication number
WO1999062061A8
WO1999062061A8 PCT/IB1999/000958 IB9900958W WO9962061A8 WO 1999062061 A8 WO1999062061 A8 WO 1999062061A8 IB 9900958 W IB9900958 W IB 9900958W WO 9962061 A8 WO9962061 A8 WO 9962061A8
Authority
WO
WIPO (PCT)
Prior art keywords
recording medium
optical recording
derive
enable
error signal
Prior art date
Application number
PCT/IB1999/000958
Other languages
French (fr)
Other versions
WO1999062061A2 (en
WO1999062061A3 (en
Inventor
Johannes H M Spruit
Johan P W B Duchateau
Original Assignee
Koninkl Philips Electronics Nv
Philips Svenska Ab
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 Koninkl Philips Electronics Nv, Philips Svenska Ab filed Critical Koninkl Philips Electronics Nv
Priority to EP99921038A priority Critical patent/EP1000424A2/en
Priority to KR1020007000833A priority patent/KR100633476B1/en
Priority to JP2000551387A priority patent/JP2002517058A/en
Publication of WO1999062061A2 publication Critical patent/WO1999062061A2/en
Publication of WO1999062061A3 publication Critical patent/WO1999062061A3/en
Publication of WO1999062061A8 publication Critical patent/WO1999062061A8/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
    • G11B7/24073—Tracks
    • G11B7/24079—Width or depth
    • 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
    • G11B7/0045—Recording
    • G11B7/00454—Recording involving phase-change effects
    • 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
    • G11B7/08—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
    • G11B7/0938—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 servo format, e.g. guide tracks, pilot signals
    • 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
    • G11B7/2403—Layers; Shape, structure or physical properties thereof
    • G11B7/24035—Recording 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
    • G11B2007/00709—Dimensions of grooves or tracks, e.g. groove depth, track pitch
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • 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
    • 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
    • G11B7/0943—Methods and circuits for performing mathematical operations on individual detector segment outputs

Landscapes

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

Abstract

An optical recording medium is described having a grooved recording layer. The structure of unwritten tracks must enable a scanning device to derive a radial tracking error signal according to the push-pull method. The structure of the written tracks must enable the scanning device to derive a radial tracking error signal according to the high-frequency phase-detection method. To this end the width and depth of the groove are in the range from 0.3 to 0.6 times the wavelength over the numerical aperture of the radiation beam used for scanning the recording medium, and from 1/24 to 1/7 times the wavelength over the refractive index, respectively. The phase difference between the radiation beam reflected from a region on track in between written marks and from a mark is in the range from 0.4 to 2.0 radians.
PCT/IB1999/000958 1998-05-27 1999-05-27 Optical recording medium WO1999062061A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP99921038A EP1000424A2 (en) 1998-05-27 1999-05-27 Optical recording medium
KR1020007000833A KR100633476B1 (en) 1998-05-27 1999-05-27 Optical recording medium
JP2000551387A JP2002517058A (en) 1998-05-27 1999-05-27 Optical recording medium

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP98201771 1998-05-27
EP98201771.7 1998-05-27

Publications (3)

Publication Number Publication Date
WO1999062061A2 WO1999062061A2 (en) 1999-12-02
WO1999062061A3 WO1999062061A3 (en) 2000-02-17
WO1999062061A8 true WO1999062061A8 (en) 2000-04-13

Family

ID=8233768

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1999/000958 WO1999062061A2 (en) 1998-05-27 1999-05-27 Optical recording medium

Country Status (5)

Country Link
EP (1) EP1000424A2 (en)
JP (1) JP2002517058A (en)
KR (1) KR100633476B1 (en)
CN (1) CN1150537C (en)
WO (1) WO1999062061A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002150614A (en) * 2000-11-10 2002-05-24 Pioneer Electronic Corp Optical disk
TWI292910B (en) * 2001-06-11 2008-01-21 Sony Corp
US6729780B2 (en) 2001-09-05 2004-05-04 Agfa-Gevaert Color proofer with registering means
CN1672198A (en) * 2002-07-24 2005-09-21 皇家飞利浦电子股份有限公司 Rewritable optical medium, apparatus for reading and/or for writing it and process for manufacturing a rewritable disc
KR100667763B1 (en) * 2004-09-02 2007-01-12 삼성전자주식회사 Disk area detection method and apparatus thereof
EP1965377A1 (en) * 2007-03-02 2008-09-03 Deutsche Thomson OHG Compatible optical recording medium

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3356488B2 (en) * 1992-06-17 2002-12-16 松下電器産業株式会社 Optical recording medium recording method and manufacturing method
US5493561A (en) * 1992-06-17 1996-02-20 Matsushita Electric Industrial Co., Ltd. Optical information recording medium and information recording and reproducing method thereof
JP2697555B2 (en) * 1993-05-26 1998-01-14 松下電器産業株式会社 Optical information recording medium
US5581539A (en) * 1994-08-12 1996-12-03 Mitsubishi Chemical Corporation Optical recording medium

Also Published As

Publication number Publication date
KR20010022260A (en) 2001-03-15
CN1150537C (en) 2004-05-19
EP1000424A2 (en) 2000-05-17
KR100633476B1 (en) 2006-10-16
JP2002517058A (en) 2002-06-11
WO1999062061A2 (en) 1999-12-02
CN1272204A (en) 2000-11-01
WO1999062061A3 (en) 2000-02-17

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