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    RECORDING DEVICE, RECORDING METHOD, DISC MANUFACTURING METHOD AND OPTICAL DISC RECORDING MEDIUM
    33.
    发明公开
    RECORDING DEVICE, RECORDING METHOD, DISC MANUFACTURING METHOD AND OPTICAL DISC RECORDING MEDIUM 审中-公开
    记录装置，记录过程中，用于生产媒体和光盘记录介质

    公开(公告)号：EP1884935A4

    公开(公告)日：2008-12-17

    申请号：EP06746309

    申请日：2006-05-11

    Applicant: SONY CORP

    Inventor： FUJITA GORO ,  MIKI TAKESHI ,  SHIMOUMA TAKASHI ,  ASHIZAKI KOJI ,  NAKAKURA MASATO

    IPC: G11B7/0045

    CPC classification number: G11B7/00452 ,  G11B7/006 ,  G11B7/268

    Abstract: A substrate is deformed into a raised shape by irradiating an optical disc recording medium with a laser beam at a prescribed laser power. As the substrate is deformed into the raised shape, a reflecting film laminated on the substrate is also deformed into the raised shape, and a reproduction signal level equivalent to that of a land portion can be obtained at a pit portion by the embodiment of the raised deformation. A reproduction signal level equivalent to that of the pit portion can be obtained at the land. At this time, since the raised deformation embodiment can be controlled by the power of the laser beam applied, the pit can be made into land and the land can be made into pit by setting the laser power. Thus, recording data can be rewritten in the optical disc recording medium wherein data is recorded by the combination of the pits and lands formed on the substrate.

    EQUALIZER FOR OPTICAL REPRODUCING APPARATUS
    39.
    发明专利
    EQUALIZER FOR OPTICAL REPRODUCING APPARATUS 未知

    公开(公告)号：MY132745A

    公开(公告)日：2007-10-31

    申请号：MYPI9706273

    申请日：1997-12-23

    Applicant: SONY CORP

    Inventor： FUJITA GORO ,  TERAOKA YOSHIYUKI

    IPC: G11B7/00 ,  G11B7/005 ,  G11B7/09 ,  G11B7/13 ,  G11B11/105 ,  G11B20/10 ,  G11B20/12

    Abstract: AN EQUALIZER USED FOR AN OPTICAL REPRODUCING APPARATUS PERFORMS AN OPTIMAL EQUALIZING OPERATION IN ACCORDANCE WITH THE SPATIAL FREQUENCY WITHOUT NEEDING AN ELECTRICAL EQUALIZER. THE OPTICAL REPRODUCING APPARATUS REPRODUCES THE REPRODUCING DATA IN THE FOLLOWING MANNER. A DETECTOR IS PROVIDED FOR RECEIVING REFLECTED LIGHT FROM A DISC. THE DETECTOR IS DIVIDED INTO A PLURALITY OF LIGHT RECEIVING AREAS BY A LINE PERPENDICULAR TO THE LIGHT RECEIVING DIRECTION CORRESPONDING TO THE DISC TRACK DIRECTION. THEN, CALCULATIONS ARE MADE ON THE OUTPUTS FROM THE RESPECTIVE LIGHT RECEIVING AREAS TO SPECIFICALLY CORRECT THE SPATIAL FREQUENCY CHARACTERISTICS. THE CALCULATED SIGNAL IS THEN DECODED.

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