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    Optical disk
    1.
    发明申请
    Optical disk 审中-公开
    光盘

    公开(公告)号：US20060087959A1

    公开(公告)日：2006-04-27

    申请号：US11250486

    申请日：2005-10-17

    申请人： Kazuyoshi Adachi ,  Osamu Ishizaki ,  Akemi Hirotsune ,  Junko Ushiyama

    发明人： Kazuyoshi Adachi ,  Osamu Ishizaki ,  Akemi Hirotsune ,  Junko Ushiyama

    IPC分类号： G11B7/24

    CPC分类号： G11B7/24079 ,  G11B7/00718

    摘要： An optical disk of a land-and-groove recording system capable of reducing a track pitch while suppressing the drop of an S/N ratio of reproduction signals is provided. The optical disk includes guide groove portions and space portions between the groove portions and is loaded to an optical disk recording/reproduction apparatus having a mechanism for removing or reducing leakage signals from adjacent tracks by using three or more light beam spots and signals are recorded to the groove portions and the space portions between the groove portions, wherein a wavelength λ of reproduction light irradiated from the optical disk recording/reproduction apparatus and a refractive index n of a cover layer on an incidence side of reproduction light or a substrate are from λ/12n to λ/6n.

    摘要翻译： 提供了一种能够在抑制再现信号的S / N比的下降的同时减小轨道间距的纹间记录系统的光盘。 光盘包括引导槽部分和凹槽部分之间的空间部分，并被装载到具有通过使用三个或更多个光束点从相邻轨道移除或减少泄漏信号的机构的光盘记录/再现装置，并且将信号记录到 凹槽部分和凹槽部分之间的空间部分，其中从光盘记录/再现装置照射的再现光的波长λ和再现光或基底的入射侧的覆盖层的折射率n来自λ / 12n到λ/ 6n。

    Reproducing signal measuring method, signal reproducing apparatus, and optical recording medium
    2.
    发明授权
    Reproducing signal measuring method, signal reproducing apparatus, and optical recording medium 有权
    再现信号测量方法，信号再现装置和光学记录介质

    公开(公告)号：US08089841B2

    公开(公告)日：2012-01-03

    申请号：US12153222

    申请日：2008-05-15

    申请人： Akemi Hirotsune ,  Junko Ushiyama ,  Hiroyuki Minemura ,  Takahiro Kurokawa ,  Harukazu Miyamoto

    发明人： Akemi Hirotsune ,  Junko Ushiyama ,  Hiroyuki Minemura ,  Takahiro Kurokawa ,  Harukazu Miyamoto

    IPC分类号： G11B7/00

    CPC分类号： G11B7/005 ,  G11B7/24038 ,  G11B20/1217 ,  G11B20/22 ,  G11B2007/0013 ,  G11B2020/1298 ,  G11B2220/235 ,  G11B2220/2537

    摘要： Regarding a signal recorded with a first frequency in a recording area on a specific first recording layer and a signal recorded with a second frequency different from the first frequency in a recording area on a second recording layer which might cause interlayer crosstalk in relation to the first recording layer, a reproducing signal measurement method for a multilayer optical recording medium having at least three recording layers includes reproducing the signal recorded in the recording area on the first recording layer, separating signals recorded respectively with the first and second frequencies, discriminating signal amplitude of the first frequency and a maximum value in signal amplitude of the second frequency, and calculating a signal amplitude ratio between them to measure interlayer crosstalk contained in the signal reproduced from the recording area on the first recording layer. Thus, the interlayer crosstalk quantity caused by unnecessary light can be measured quantitatively.

    摘要翻译： 关于在特定第一记录层上的记录区域中以第一频率记录的信号和在第二记录层上的记录区域中以与第一频率不同的第二频率记录的信号，其可能引起与第一频率相关的层间串扰 记录层，用于具有至少三个记录层的多层光学记录介质的再现信号测量方法包括：再现记录在第一记录层上的记录区域中的信号，分离分别记录第一和第二频率的信号，区分信号幅度 第一频率和第二频率的信号幅度的最大值，并且计算它们之间的信号幅度比以测量从第一记录层上的记录区域再现的信号中包含的层间串扰。 因此，可以定量地测量由不必要的光引起的层间串扰量。

    Information recording method and apparatus with suppressed mark edge jitters
    6.
    发明授权
    Information recording method and apparatus with suppressed mark edge jitters 失效
    具有抑制标记边缘抖动的信息记录方法和装置

    公开(公告)号：US06343056B2

    公开(公告)日：2002-01-29

    申请号：US09773557

    申请日：2001-02-02

    申请人： Makoto Miyamoto ,  Tsuyoshi Toda ,  Masatoshi Ohtake ,  Motoyasu Terao ,  Junko Ushiyama ,  Keikichi Andoo ,  Yumiko Anzai ,  Akemi Hirotsune ,  Tetsuya Nishida ,  Hideki Saga

    发明人： Makoto Miyamoto ,  Tsuyoshi Toda ,  Masatoshi Ohtake ,  Motoyasu Terao ,  Junko Ushiyama ,  Keikichi Andoo ,  Yumiko Anzai ,  Akemi Hirotsune ,  Tetsuya Nishida ,  Hideki Saga

    IPC分类号： G11B700

    CPC分类号： G11B7/0062 ,  G11B7/00454 ,  G11B7/00557 ,  G11B7/006 ,  G11B7/126 ,  G11B20/10009 ,  G11B20/1426

    摘要： A method for recording information is disclosed in which an information recording medium is irradiated with a recording energy beam power-modulated into at least a record power level and a record-ready power level lower than the record power level. When forming a mark portion of a predetermined length, the radiation energy of the energy beam is increased as compared with when forming a mark portion of a different length before or after the first pulse of an energy beam pulse train including at least a pulse for forming the mark portion. Also, only in the case where the energy beam is modulated by the power lower in power level than the record-ready power level after the last pulse of the energy beam pulse train including at least one pulse for forming a mark portion and the mark portion is followed by a space portion of a predetermined length, the particular radiation energy of low power level is reduced as compared with when the mark portion is followed by a space potion of a different length. The radiation energy is increased and/or decreased.

    摘要翻译： 公开了一种用于记录信息的方法，其中信息记录介质被照射到被调制成至少记录功率电平和低于记录功率电平的记录就绪功率电平的记录能量束。 当形成预定长度的标记部分时，与在至少包括用于形成的脉冲的能量束脉冲串的第一脉冲之前或之后形成不同长度的标记部分相比，能量束的辐射能量增加 标记部分。 此外，只有在能量束脉冲串的最后脉冲包括至少一个用于形成标记部分的脉冲和标记部分的能量束脉冲序列的功率电平以下的功率电平被调制的能量束被调制的情况下，记录就绪功率电平 之后是预定长度的空间部分，与当标记部分之后是不同长度的空间部分时相比，低功率电平的特定辐射能量减小。 辐射能量增加和/或减少。

    Reproducing signal measuring method, signal reproducing apparatus, and optical recording medium
    7.
    发明申请
    Reproducing signal measuring method, signal reproducing apparatus, and optical recording medium 有权
    再现信号测量方法，信号再现装置和光学记录介质

    公开(公告)号：US20090040897A1

    公开(公告)日：2009-02-12

    申请号：US12153222

    申请日：2008-05-15

    申请人： Akemi Hirotsune ,  Junko Ushiyama ,  Hiroyuki Minemura ,  Takahiro Kurokawa ,  Harukazu Miyamoto

    发明人： Akemi Hirotsune ,  Junko Ushiyama ,  Hiroyuki Minemura ,  Takahiro Kurokawa ,  Harukazu Miyamoto

    IPC分类号： G11B20/18 ,  G11B7/24 ,  G11B11/00

    CPC分类号： G11B7/005 ,  G11B7/24038 ,  G11B20/1217 ,  G11B20/22 ,  G11B2007/0013 ,  G11B2020/1298 ,  G11B2220/235 ,  G11B2220/2537

    摘要： Regarding a signal recorded with a first frequency in a recording area on a specific first recording layer and a signal recorded with a second frequency different from the first frequency in a recording area on a second recording layer which might cause interlayer crosstalk in relation to the first recording layer, a reproducing signal measurement method for a multilayer optical recording medium having at least three recording layers includes reproducing the signal recorded in the recording area on the first recording layer, separating signals recorded respectively with the first and second frequencies, discriminating signal amplitude of the first frequency and a maximum value in signal amplitude of the second frequency, and calculating a signal amplitude ratio between them to measure interlayer crosstalk contained in the signal reproduced from the recording area on the first recording layer. Thus, the interlayer crosstalk quantity caused by unnecessary light can be measured quantitatively.

    摘要翻译： 关于在特定第一记录层上的记录区域中以第一频率记录的信号和在第二记录层上的记录区域中以与第一频率不同的第二频率记录的信号，其可能引起与第一频率相关的层间串扰 记录层，用于具有至少三个记录层的多层光学记录介质的再现信号测量方法包括：再现记录在第一记录层上的记录区域中的信号，分离分别记录第一和第二频率的信号，区分信号幅度 第一频率和第二频率的信号幅度的最大值，并且计算它们之间的信号幅度比以测量从第一记录层上的记录区域再现的信号中包含的层间串扰。 因此，可以定量地测量由不必要的光引起的层间串扰量。