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BR9705561A - Dispositivo de disco ótico processo para gravacão de um disco ótico e disco ótico - Google Patents

Dispositivo de disco ótico processo para gravacão de um disco ótico e disco ótico

Info

Publication number
BR9705561A
BR9705561A BR9705561A BR9705561A BR9705561A BR 9705561 A BR9705561 A BR 9705561A BR 9705561 A BR9705561 A BR 9705561A BR 9705561 A BR9705561 A BR 9705561A BR 9705561 A BR9705561 A BR 9705561A
Authority
BR
Brazil
Prior art keywords
optical disc
recording
disc device
optical
disc
Prior art date
Application number
BR9705561A
Other languages
English (en)
Other versions
BR9705561B1 (pt
Inventor
Koji Fujimiya
Seiji Kobayashi
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
Publication of BR9705561A publication Critical patent/BR9705561A/pt
Publication of BR9705561B1 publication Critical patent/BR9705561B1/pt

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/38—Visual features other than those contained in record tracks or represented by sprocket holes the visual signals being auxiliary signals
    • G11B23/40—Identifying or analogous means applied to or incorporated in the record carrier and not intended for visual display simultaneously with the playing-back of the record carrier, e.g. label, leader, photograph
    • 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
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10037—A/D conversion, D/A conversion, sampling, slicing and digital quantisation or adjusting parameters thereof
    • 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
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
    • G11B20/10194—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter using predistortion during writing
    • 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
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10305—Improvement or modification of read or write signals signal quality assessment
    • G11B20/10324—Improvement or modification of read or write signals signal quality assessment asymmetry of the recorded or reproduced waveform
    • 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
    • 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
    • G11B7/013—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 for discrete information, i.e. where each information unit is stored in a distinct discrete location, e.g. digital information formats within a data block or sector
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/128—Modulators
    • 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
    • G11B7/24094—Indication parts or information parts for identification
    • 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
    • G11B2220/2545—CDs

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
BRPI9705561-1A 1996-07-16 1997-07-15 disco ótico, processo para gravação de disco ótico, e, dispositivo de disco ótico. BR9705561B1 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20529296A JP3861269B2 (ja) 1996-07-16 1996-07-16 光ディスク装置、光ディスクの記録方法、光ディスク及び光ディスクの製造方法

Publications (2)

Publication Number Publication Date
BR9705561A true BR9705561A (pt) 1999-03-16
BR9705561B1 BR9705561B1 (pt) 2011-01-11

Family

ID=16504562

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9705561-1A BR9705561B1 (pt) 1996-07-16 1997-07-15 disco ótico, processo para gravação de disco ótico, e, dispositivo de disco ótico.

Country Status (10)

Country Link
US (2) US6226243B1 (pt)
EP (2) EP0820053A3 (pt)
JP (1) JP3861269B2 (pt)
KR (3) KR100608180B1 (pt)
CN (3) CN1122974C (pt)
AU (1) AU728833B2 (pt)
BR (1) BR9705561B1 (pt)
CA (1) CA2210275C (pt)
DE (1) DE69730755T2 (pt)
RU (1) RU2228545C2 (pt)

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Also Published As

Publication number Publication date
KR100542513B1 (ko) 2006-01-11
DE69730755T2 (de) 2005-09-29
KR980011087A (ko) 1998-04-30
EP0820053A3 (en) 2000-02-09
AU2866697A (en) 1998-01-22
CN1173699A (zh) 1998-02-18
JPH1031825A (ja) 1998-02-03
EP1049079B9 (en) 2005-01-05
DE69730755D1 (de) 2004-10-21
CN1122974C (zh) 2003-10-01
EP0820053A2 (en) 1998-01-21
KR100547057B1 (ko) 2006-01-31
RU2228545C2 (ru) 2004-05-10
CA2210275A1 (en) 1998-01-16
AU728833B2 (en) 2001-01-18
CN1266676C (zh) 2006-07-26
US6333905B2 (en) 2001-12-25
CN1261930C (zh) 2006-06-28
EP1049079B1 (en) 2004-09-15
US6226243B1 (en) 2001-05-01
CN1442850A (zh) 2003-09-17
BR9705561B1 (pt) 2011-01-11
US20010026530A1 (en) 2001-10-04
EP1049079A1 (en) 2000-11-02
CA2210275C (en) 2006-12-05
KR100608180B1 (ko) 2007-01-31
JP3861269B2 (ja) 2006-12-20
CN1442849A (zh) 2003-09-17

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