利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

13 条记录 (耗时 0.024 秒)

    Multi-layered optical recording medium, information recording method, and information reproduction method
    1.
    发明申请
    Multi-layered optical recording medium, information recording method, and information reproduction method 审中-公开
    多层光记录介质，信息记录方法和信息再现方法

    公开(公告)号：US20070247999A1

    公开(公告)日：2007-10-25

    申请号：US11513363

    申请日：2006-08-31

    申请人： Masaki Mukoh ,  Takeshi Maeda ,  Akemi Hirotsune

    发明人： Masaki Mukoh ,  Takeshi Maeda ,  Akemi Hirotsune

    IPC分类号： G11B3/70

    CPC分类号： G11B7/24038 ,  G11B2007/0013

    摘要： High-speed and high-density recording of a layer-selected optical disc are enabled with a small number of electrodes. A plurality of recording films that are independently selectable are disposed between a pair of electrodes 3 and 8. The recording films are controlled individually in terms of a threshold of voltage required for coloration and electric characteristics. A desired layer can be selected by changing the voltage applied between the pair of electrodes.

    摘要翻译： 层数选择的光盘的高速和高密度记录能够使用少量的电极。 可以独立选择的多个记录膜设置在一对电极3和8之间。根据着色和电特性所需的电压阈值分别控制记录膜。 可以通过改变施加在一对电极之间的电压来选择所需的层。

    Information recording/reproducing method and apparatus for same
    6.
    发明申请
    Information recording/reproducing method and apparatus for same 审中-公开
    信息记录/再现方法和装置

    公开(公告)号：US20070086316A1

    公开(公告)日：2007-04-19

    申请号：US11366591

    申请日：2006-03-03

    申请人： Akemi Hirotsune ,  Masaki Mukoh ,  Hiroyuki Minemura

    发明人： Akemi Hirotsune ,  Masaki Mukoh ,  Hiroyuki Minemura

    IPC分类号： G11B9/00 ,  G11B11/00

    CPC分类号： G11B7/24038 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/0946 ,  G11B2007/0013

    摘要： When external and internal environmental variation factors (characteristics of medium, variation in voltage, deterioration of medium and the like) occur, a reproduced signal is varied. In a learning system for reproduction of a voltage layer selection type multi-layer optical disk which making recording or reproducing by irradiation of energy, a level and/or pattern of an application voltage is adjusted in accordance with a reproduced signal at a predetermined position. Even if the reproduced signal, from the reflectivity down, is varied due to the external and internal environmental variation factors (characteristics of medium, variation in voltage, deterioration of medium and the like), the reproduced signal with the high quality can be obtained from the voltage layer selection type medium.

    摘要翻译： 当发生外部和内部环境变化因素（介质特性，电压变化，介质劣化等）时，再现信号变化。 在通过照射能量进行记录或再现的电压层选择型多层光盘的再现学习系统中，根据预定位置处的再现信号来调整施加电压的电平和/或图案。 即使由于外部和内部环境变化因素（介质的特性，电压的变化，介质的劣化等）导致的从反射率降低的再现信号变化，可以从高质量的再现信号获得具有高质量的再现信号 电压层选择型介质。

    POLARIZATION SPLIT ELEMENT AND METHOD FOR MANUFACTURING THE SAME
    7.
    发明申请
    POLARIZATION SPLIT ELEMENT AND METHOD FOR MANUFACTURING THE SAME 审中-公开
    极化分离元件及其制造方法

    公开(公告)号：US20110273658A1

    公开(公告)日：2011-11-10

    申请号：US13143434

    申请日：2010-03-05

    申请人： Eiji Koyama ,  Tomonori Kanai ,  Masaki Mukoh

    发明人： Eiji Koyama ,  Tomonori Kanai ,  Masaki Mukoh

    IPC分类号： G02F1/13 ,  G02F1/1335

    CPC分类号： G02B27/285 ,  G02B5/3016

    摘要： Grating grooves of a predetermined shape are filled with a polymerizable liquid crystal, and thereafter, the polymerizable liquid crystal is cured to form a striped structure including a uniaxial polymer liquid crystal having an alignment orientation identical to the longitudinal direction of the grating grooves, without using a liquid crystal alignment film. Consequently, it is possible to stably and effectively align the polymer liquid crystal without using an alignment film and to adjust the film thickness easily, whereby a polarization splitting element exhibiting a high and uniform split efficiently can be obtained stably.

    摘要翻译： 用可聚合液晶填充预定形状的光栅槽，然后使可聚合液晶固化，形成包括具有与光栅槽的纵向方向相同的取向取向的单轴聚合物液晶的条纹结构，而不使用 液晶取向膜。 因此，可以在不使用取向膜的情况下稳定且有效地对准聚合物液晶并且容易地调节膜厚度，从而可以稳定地获得表现出高均匀分裂的偏振分离元件。

    PRML (partial response maximum likelihood) information reproducing method and information reproducing apparatus for implementing the same
    8.
    发明授权
    PRML (partial response maximum likelihood) information reproducing method and information reproducing apparatus for implementing the same 失效
    PRML（部分响应最大似然）信息再现方法和用于实现该方法的信息再现装置

    公开(公告)号：US07440379B2

    公开(公告)日：2008-10-21

    申请号：US10774587

    申请日：2004-02-10

    申请人： Hiroyuki Minemura ,  Masaki Mukoh

    发明人： Hiroyuki Minemura ,  Masaki Mukoh

    IPC分类号： G11B7/005

    CPC分类号： G11B20/10203 ,  G11B20/10046 ,  G11B20/10212

    摘要： An information reproducing method using PRML technology which provides asymmetry compensation and also assures media interchangeability. To compensate for asymmetry, target levels are basically adapted to readout signals and either restriction type (1) (time reversal and level reversal symmetry) or restriction type (2) (time reversal symmetry) is imposed between target levels. As a consequence, asymmetry compensation is made regardless of a readout signal distortion such as mark shift which might deteriorate media interchangeability.

    摘要翻译： 使用PRML技术的信息再现方法，其提供不对称补偿并且还确保媒体互换性。 为了补偿不对称，目标水平基本上适应于读出信号，并且在目标水平之间施加限制类型（1）（时间反转和水平反转对称）或限制类型（2）（时间反转对称）。 因此，不管读取信号失真如标记偏移，可能会导致不均匀性补偿，这可能会降低介质互换性。

    OBJECTIVE LENS
    9.
    发明申请
    OBJECTIVE LENS 审中-公开
    物镜

    公开(公告)号：US20090129238A1

    公开(公告)日：2009-05-21

    申请号：US12188297

    申请日：2008-08-08

    申请人： Takeshi Shimano ,  Masaki Mukoh

    发明人： Takeshi Shimano ,  Masaki Mukoh

    IPC分类号： G11B7/135

    CPC分类号： G11B7/1374 ,  G11B7/13925 ,  G11B2007/0006

    摘要： A combined aspherical lens has an aspherical shape with an intermediate substrate thickness between the substrate thicknesses of a BD and an HD in a numerical aperture (NA) range for the HD, and an aspherical shape dedicated to the BD in an NA range for the BD only. The lens is designed such that wave aberration occurring through the NA range for the HD for BD reproduction has the same aberration form as but has an opposite sign to wave aberration occurring through this range for HD reproduction. Further, in the NA range for the HD, a pattern of annular transparent electrodes is optimized for a spherical aberration wavefront defocused to minimize the maximum inclination of the wave aberration. A phase shift applied is within plus or minus half wave excluding an integer wavelength of aberration.

    摘要翻译： 组合的非球面透镜具有非球面形状，在HD的数值孔径（NA）范围内具有在BD的基板厚度和HD之间的衬底厚度之间的中间衬底厚度，以及在BD的NA范围内专用于BD的非球面形状 只要。 透镜被设计成使得通过用于BD再现的HD的NA范围发生的波像差具有与HD再现的该范围所出现的波像差相同的像差形式。 此外，在HD的NA范围内，环形透明电极的图案被优化用于散焦的球面像差波前，以最小化波像差的最大倾角。 施加的相移在除了整数像差波长之外的正或负半波之内。

    Objective optical element and optical head apparatus
    10.
    发明申请
    Objective optical element and optical head apparatus 审中-公开
    物镜光学元件和光学头装置

    公开(公告)号：US20090052303A1

    公开(公告)日：2009-02-26

    申请号：US12222886

    申请日：2008-08-19

    申请人： Masaki Mukoh ,  Takeshi Shimano

    发明人： Masaki Mukoh ,  Takeshi Shimano

    IPC分类号： G11B7/00

    CPC分类号： G11B7/1369 ,  G11B7/13925 ,  G11B2007/0006

    摘要： Two optical discs used with a laser light having the same wavelength but having different substrate thicknesses can be handled by a single optical disc apparatus and a multilayer optical disc can also be reproduced. A refractive lens unit and liquid crystal elements are provided so as to condense laser light on an optical disc having a thin substrate thickness with a first NA and to condense laser light on an optical disc having a thick substrate thickness with a second NA smaller than the first NA. The refractive lens unit is designed such that the amount of RMS wavefront aberration is minimized with respect to an intermediate substrate thickness between the two optical discs in the range of the second NA; and the RMS wavefront aberration is 0.05λ or less with respect to the substrate thickness of the optical disc in an area outside the second NA. A liquid crystal element for compatibility corrects spherical aberration due to the difference in substrate thickness between the two optical discs. A liquid crystal element for multilayer corrects spherical aberration based on layer selection of a multilayer optical disc.

    摘要翻译： 与具有相同波长但具有不同基板厚度的激光一起使用的两个光盘可以由单个光盘装置处理，并且也可以再现多层光盘。 提供折射透镜单元和液晶元件，以便将激光冷凝在具有第一NA的薄的基板厚度的光盘上，并且将激光聚集在具有厚的基板厚度的光盘上，其中第二NA小于 第一个NA。 折射透镜单元被设计成使得在第二NA的范围内相对于两个光盘之间的中间基板厚度使RMS波前像差的量最小化; 相对于第二NA以外的区域的光盘的基板厚度，RMS波前像差为0.05λ以下。 用于兼容性的液晶元件由于两个光盘之间的基板厚度的差异而校正球面像差。 用于多层校正球面像差的液晶元件基于多层光盘的层选择。