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    OPTICAL RECORDING MEDIUM, INFORMATION RECORDING METHOD, AND INFORMATION REPRODUCING METHOD
    51.
    发明申请
    OPTICAL RECORDING MEDIUM, INFORMATION RECORDING METHOD, AND INFORMATION REPRODUCING METHOD 有权
    光学记录介质，信息记录方法和信息再现方法

    公开(公告)号：US20100110868A1

    公开(公告)日：2010-05-06

    申请号：US12642432

    申请日：2009-12-18

    申请人： Koji TAKAZAWA ,  Seiji Morita ,  Kazuyo Umezawa ,  Naoki Morishita ,  Yasuaki Ootera ,  Hideo Ando ,  Naomasa Nakamura

    发明人： Koji TAKAZAWA ,  Seiji Morita ,  Kazuyo Umezawa ,  Naoki Morishita ,  Yasuaki Ootera ,  Hideo Ando ,  Naomasa Nakamura

    IPC分类号： G11B7/24

    CPC分类号： G11B7/24038 ,  G11B7/246

    摘要： According to one embodiment, an optical recording medium is provided in which interlayer crosstalk is low and in which stable and high-quality recording characteristics can be obtained. To this end, an optical recording medium comprises a first recording part which includes a first recording layer and a first light reflecting layer and which is disposed on a side closer to a light receiving surface, and a second recording part which includes a second recording layer and a second light reflecting layer and which is disposed on a side farther from the light receiving surface, the first recording part and the second recording part being stacked, wherein the thickness of the first light reflecting layer is smaller than the thickness of the second light reflecting layer.

    摘要翻译： 根据一个实施例，提供了一种光记录介质，其中层间串扰低，并且其中可以获得稳定和高质量的记录特性。 为此，光学记录介质包括第一记录部分，该第一记录部分包括第一记录层和第一光反射层，并且设置在靠近光接收表面的一侧;以及第二记录部分，其包括第二记录层 和第二光反射层，并且其被布置在离光接收表面更远的一侧，第一记录部分和第二记录部分被堆叠，其中第一光反射层的厚度小于第二光的厚度 反射层。

    Optical recording medium, information recording method, and information reproducing method
    56.
    发明授权
    Optical recording medium, information recording method, and information reproducing method 有权
    光记录介质，信息记录方法和信息再现方法

    公开(公告)号：US08593930B2

    公开(公告)日：2013-11-26

    申请号：US12961084

    申请日：2010-12-06

    申请人： Koji Takazawa ,  Seiji Morita ,  Kazuyo Umezawa ,  Naoki Morishita ,  Yasuaki Ootera ,  Hideo Ando ,  Naomasa Nakamura

    发明人： Koji Takazawa ,  Seiji Morita ,  Kazuyo Umezawa ,  Naoki Morishita ,  Yasuaki Ootera ,  Hideo Ando ,  Naomasa Nakamura

    IPC分类号： G11B7/24 ,  G11B7/00

    CPC分类号： G11B7/24038 ,  G11B7/246

    摘要： According to one embodiment, an optical recording medium is provided in which interlayer crosstalk is low and in which stable and high-quality recording characteristics can be obtained. To this end, an optical recording medium comprises a first recording part which includes a first recording layer and a first light reflecting layer and which is disposed on a side closer to a light receiving surface, and a second recording part which includes a second recording layer and a second light reflecting layer and which is disposed on a side farther from the light receiving surface, the first recording part and the second recording part being stacked, wherein the thickness of the first light reflecting layer is smaller than the thickness of the second light reflecting layer.

    摘要翻译： 根据一个实施例，提供了一种光记录介质，其中层间串扰低，并且其中可以获得稳定和高质量的记录特性。 为此，光学记录介质包括第一记录部分，该第一记录部分包括第一记录层和第一光反射层，并且设置在靠近光接收表面的一侧;以及第二记录部分，其包括第二记录层 和第二光反射层，并且其被布置在离光接收表面更远的一侧，第一记录部分和第二记录部分被堆叠，其中第一光反射层的厚度小于第二光的厚度 反射层。

    Optical recording medium, information recording method, and information reproducing method
    57.
    发明授权
    Optical recording medium, information recording method, and information reproducing method 有权
    光记录介质，信息记录方法和信息再现方法

    公开(公告)号：US08355306B2

    公开(公告)日：2013-01-15

    申请号：US13094181

    申请日：2011-04-26

    申请人： Koji Takazawa ,  Seiji Morita ,  Kazuyo Umezawa ,  Naoki Morishita ,  Yasuaki Ootera ,  Hideo Ando ,  Naomasa Nakamura

    发明人： Koji Takazawa ,  Seiji Morita ,  Kazuyo Umezawa ,  Naoki Morishita ,  Yasuaki Ootera ,  Hideo Ando ,  Naomasa Nakamura

    IPC分类号： G11B7/00

    CPC分类号： G11B7/258 ,  G11B7/00452 ,  G11B7/00455 ,  G11B7/24038 ,  G11B7/246 ,  G11B7/259 ,  G11B2007/0013

    摘要： According to one embodiment, an optical recording medium is provided in which interlayer crosstalk is low and in which stable and high-quality recording characteristics can be obtained. To this end, an optical recording medium comprises a first recording part which includes a first recording layer and a first light reflecting layer and which is disposed on a side closer to a light receiving surface, and a second recording part which includes a second recording layer and a second light reflecting layer and which is disposed on a side farther from the light receiving surface, the first recording part and the second recording part being stacked, wherein the thickness of the second light reflecting layer is larger than the thickness of the first light reflecting layer.

    摘要翻译： 根据一个实施例，提供了一种光记录介质，其中层间串扰低，并且其中可以获得稳定和高质量的记录特性。 为此，光学记录介质包括第一记录部分，该第一记录部分包括第一记录层和第一光反射层，并且设置在靠近光接收表面的一侧;以及第二记录部分，其包括第二记录层 和第二光反射层，并且其被布置在离光接收表面更远的一侧，第一记录部分和第二记录部分被堆叠，其中第二光反射层的厚度大于第一光的厚度 反射层。

    Multi-layer optical disc, information recording method and information reproducing method
    60.
    发明授权
    Multi-layer optical disc, information recording method and information reproducing method 有权
    多层光盘，信息记录方法和信息再现方法

    公开(公告)号：US08218416B2

    公开(公告)日：2012-07-10

    申请号：US12973196

    申请日：2010-12-20

    申请人： Kazuyo Umezawa ,  Seiji Morita ,  Koji Takazawa ,  Hideo Ando ,  Yasuaki Ootera ,  Naomasa Nakamura ,  Naoki Morishita

    发明人： Kazuyo Umezawa ,  Seiji Morita ,  Koji Takazawa ,  Hideo Ando ,  Yasuaki Ootera ,  Naomasa Nakamura ,  Naoki Morishita

    IPC分类号： G11B7/00 ,  G11B7/24

    CPC分类号： G11B7/00736 ,  G11B7/126 ,  G11B2007/0013

    摘要： According to one embodiment, single-sided dual-layer recordable disc 100 may be used. Information recording is performed by forming mark and space portions on data area DA using modulated laser power. Pp denotes the maximum laser power or peak power for forming the mark portion, and Pb denotes the bias power for forming the space portion. Power ratio Pb/Pp is calculated for each of recording layers L0 and L1. Information is recorded on any of the recording layers L0 and L1 based on the result of calculation. Here, the calculated power ratio Pb/Pp changes among the recording layers L0 and L1, thereby optimizing the recording condition for a multi-layer recordable optical disc within relatively short time.

    摘要翻译： 根据一个实施例，可以使用单面双层可记录盘100。 通过使用调制的激光功率在数据区DA上形成标记和空间部分来执行信息记录。 Pp表示用于形成标记部分的最大激光功率或峰值功率，Pb表示用于形成空间部分的偏压功率。 计算每个记录层L0和L1的功率比Pb / Pp。 基于计算结果，信息记录在任何记录层L0和L1上。 这里，计算出的功率比Pb / Pp在记录层L0和L1之间变化，从而在较短时间内优化了多层可记录光盘的记录条件。