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    Optical recording device having a defect detection system
    1.
    发明授权
    Optical recording device having a defect detection system 失效
    具有缺陷检测系统的光记录装置

    公开(公告)号：US06215741B1

    公开(公告)日：2001-04-10

    申请号：US09058294

    申请日：1998-04-10

    申请人： Kenichi Ishiduka

    发明人： Kenichi Ishiduka

    IPC分类号： G11B70037

    CPC分类号： G11B7/126 ,  G11B7/0045 ,  G11B7/26

    摘要： An optical recording device for use in a recording/reproducing operation has a photodetector for receiving a part of a laser beam generated by a laser source, and a CCD sensor for receiving the laser beam reflected from an optical disk and including information of the energy profile of the laser beam on the optical disk. The signal processor generates a defect signal representing an occurrence of a defect caused by the fluctuation of the laser power and/or the focal position and the cause of the defect during operation of the optical recording device.

    摘要翻译： 用于记录/再现操作的光学记录装置具有用于接收由激光源产生的激光束的一部分的光电检测器和用于接收从光盘反射的激光束并包括能量曲线信息的CCD传感器 的激光束在光盘上。 信号处理器产生表示在光学记录装置的操作期间由激光功率的波动和/或焦点位置引起的缺陷的发生以及缺陷的原因的缺陷信号。

    Optical information recording medium and methods for recording, reading, and erasing information thereupon
    2.
    发明授权
    Optical information recording medium and methods for recording, reading, and erasing information thereupon 失效
    光学信息记录介质以及用于记录，读取和擦除信息的方法

    公开(公告)号：US06606293B1

    公开(公告)日：2003-08-12

    申请号：US09478701

    申请日：2000-01-06

    申请人： Mitsuya Okada ,  Shuichi Ohkubo ,  Masaki Itoh

    发明人： Mitsuya Okada ,  Shuichi Ohkubo ,  Masaki Itoh

    IPC分类号： G11B70037

    CPC分类号： G11B7/257 ,  G11B7/24 ,  G11B7/243 ,  G11B7/252 ,  G11B7/258 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316

    摘要： There is disclosed an optical information recording medium having phase-change recording films whose the transmittance can be made substantially uniform irrespective of the presence or absence of recording. There are also disclosed methods for recording, reading, and erasing information well at a high density on such a medium. Each of the phase-change recording films other than the top one has a phase-change recording film for recording and erasing information by a phase change caused by illumination of laser light. A transparent upper protective film is formed on the phase-change recording film to protect the phase-change recording film mainly against thermal deformation during recording and erasing of information. A transparent lower protective film is formed under the phase-change recording film to protect the phase-change recording film mainly against thermal deformation during recording and erasing of information. A foundation interference film is formed under the transparent lower protective film to adjust the transmittance of the phase-change recording film for the laser light.

    摘要翻译： 公开了一种具有相变记录膜的光学信息记录介质，其透射率可以基本上均匀，而不管记录是否存在。 还公开了在这种介质上高密度地记录，读取和擦除信息的方法。 除了顶部之外的每个相变记录膜具有用于通过由激光的照明引起的相位变化来记录和擦除信息的相变记录膜。 在相变记录膜上形成透明的上保护膜，以在记录和擦除信息期间主要防止相变记录膜的热变形。 在相变记录膜下面形成透明的下保护膜，以在记录和擦除信息期间主要防止相变记录膜的热变形。 在透明下保护膜下方形成基础干涉膜，以调节激光用相变记录膜的透射率。