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    Optical recording medium capable of using wide ranges of linear velocity recording
    2.
    发明授权
    Optical recording medium capable of using wide ranges of linear velocity recording 有权
    能够使用宽范围的线速度记录的光学记录介质

    公开(公告)号：US08310913B2

    公开(公告)日：2012-11-13

    申请号：US12237966

    申请日：2008-09-25

    申请人： Kazuyo Umezawa ,  Seiji Morita ,  Koji Takazawa ,  Naomasa Nakamura ,  Naoki Morishita

    发明人： Kazuyo Umezawa ,  Seiji Morita ,  Koji Takazawa ,  Naomasa Nakamura ,  Naoki Morishita

    IPC分类号： G11B7/24

    CPC分类号： G11B7/00455 ,  C09B23/04 ,  C09B26/02 ,  C09B45/18 ,  G11B7/0062 ,  G11B7/2467 ,  G11B7/249 ,  G11B7/2492 ,  G11B7/2495

    摘要： An information recording medium having a disc shape and a recording layer configured to store information by light, the information being configured to be recorded on the recording layer with a mark and a space, wherein a channel clock period, represented by T, is provided for recording the mark on the recording layer. A mark corresponding to 2T or more can be recorded, and write parameter information is recorded on a particular area of the information recording medium. The parameter information includes a first peak power value used for a standard recording speed, and a second peak power value used for an increased recording speed which is a quadruple of the standard recording speed, the second peak power value being greater than the first peak power value.

    摘要翻译： 一种具有光盘形状和记录层的信息记录介质，被配置为用光存储信息，所述信息被配置为用标记和空间记录在记录层上，其中以T表示的通道时钟周期被提供用于 在记录层上记录标记。 可以记录对应于2T以上的标记，并且将写入参数信息记录在信息记录介质的特定区域上。 参数信息包括用于标准记录速度的第一峰值功率值和用于增加的记录速度的第二峰值功率值，其是标准记录速度的四倍，第二峰值功率值大于第一峰值功率 值。

    MULTI-LAYER OPTICAL DISC, INFORMATION RECORDING METHOD AND INFORMATION REPRODUCING METHOD
    3.
    发明申请
    MULTI-LAYER OPTICAL DISC, INFORMATION RECORDING METHOD AND INFORMATION REPRODUCING METHOD 审中-公开
    多层光盘，信息记录方法和信息再现方法

    公开(公告)号：US20120243398A1

    公开(公告)日：2012-09-27

    申请号：US13488504

    申请日：2012-06-05

    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： G11B7/24

    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。

    Optical recording medium for writing data using multiple pulses
    9.
    发明授权
    Optical recording medium for writing data using multiple pulses 有权
    用于使用多个脉冲写入数据的光学记录介质

    公开(公告)号：US08059523B2

    公开(公告)日：2011-11-15

    申请号：US12795385

    申请日：2010-06-07

    申请人： Kazuyo Umezawa ,  Seiji Morita ,  Koji Takazawa ,  Naomasa Nakamura ,  Naoki Morishita ,  Shinichi Katsuda

    发明人： Kazuyo Umezawa ,  Seiji Morita ,  Koji Takazawa ,  Naomasa Nakamura ,  Naoki Morishita ,  Shinichi Katsuda

    IPC分类号： G11B7/24

    CPC分类号： G11B7/24038 ,  G11B7/2467 ,  G11B7/2492 ,  G11B7/2495

    摘要： An optical recording medium including a plurality of recording layers to record/reproduce information using light with a predetermined wavelength, the information being recorded on one of the recording layers using a mark and a space, wherein a channel clock period T is provided for recording the mark on one of the recording layers. A plurality of pulses, including a last pulse arranged at an end of the pulses, are used to record the mark with length 3T, the mark being recorded with a condition that a width of the last pulse is minimum 0T and maximum 1.10T, in which a first subsequent level lower than a peak power level of the last pulse is arranged next to the last pulse, and a second subsequent level lower than the peak power level but higher than the first subsequent level is arranged next to the first subsequent level.

    摘要翻译： 一种光记录介质，包括使用预定波长的光记录/再现信息的多个记录层，所述信息使用标记和空间被记录在一个记录层上，其中提供通道时钟周期T用于记录 在其中一个记录层上标记。 包括布置在脉冲结束处的最后脉冲的多个脉冲用于记录长度为3T的标记，该标记以最后脉冲的宽度最小为0T且最大为1.10T的条件记录 其最后一个电平低于最后脉冲的峰值功率电平的第一后置电平被布置在最后脉冲的旁边，并且比峰值功率电平低但高于第一后续电平的第二后续电平被布置在第一后续电平旁边。