利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

35 条记录 (耗时 0.025 秒)

    Holographic recording/reproducing apparatus having relative speed controller and method
    22.
    发明授权
    Holographic recording/reproducing apparatus having relative speed controller and method 失效
    具有相对速度控制器和方法的全息记录/再现装置

    公开(公告)号：US07688699B2

    公开(公告)日：2010-03-30

    申请号：US11896402

    申请日：2007-08-31

    申请人： Akihiro Tachibana ,  Satoru Tanaka ,  Yoshihisa Itoh ,  Yoshihisa Kubota ,  Kazuo Kuroda ,  Satoshi Sugiura

    发明人： Akihiro Tachibana ,  Satoru Tanaka ,  Yoshihisa Itoh ,  Yoshihisa Kubota ,  Kazuo Kuroda ,  Satoshi Sugiura

    IPC分类号： G11B7/00

    CPC分类号： G11B7/0938 ,  G11B7/0065 ,  G11B7/083 ,  G11B7/1362

    摘要： A holographic recording and reproducing apparatus comprises: a pickup for moving an objective lens that focuses a coherent light beam along a recording track on a holographic recording medium and for detecting reflected light from the recording track to perform focus- and tracking-servo control; a relative velocity determination unit for determining a relative velocity of a converging position of the objective lens with respect to the holographic recording medium; a driving unit for changing a relative position of the objective lens with respect to an optical path of the coherent light beam so as to make the relative velocity fall within a predetermined range at least during a predetermined period; and a control unit for performing recording or reproduction for a recording layer during the predetermined period. The holographic recording medium includes a plurality of markers used for positioning an optical interference pattern of the coherent light beam.

    摘要翻译： 一种全息记录和再现装置，包括：拾取器，用于移动物镜，沿着记录轨道将相干光束聚焦在全息记录介质上，并用于检测来自记录轨道的反射光，以执行对焦和跟踪伺服控制; 相对速度确定单元，用于确定物镜相对于全息记录介质的会聚位置的相对速度; 驱动单元，用于相对于所述相干光束的光路改变所述物镜的相对位置，以使所述相对速度至少在预定时段期间落在预定范围内; 以及控制单元，用于在预定时段期间执行记录层的记录或再现。 全息记录介质包括用于定位相干光束的光学干涉图案的多个标记。

    Holographic recording/reproducing apparatus having relative speed controller and method
    23.
    发明申请
    Holographic recording/reproducing apparatus having relative speed controller and method 失效
    具有相对速度控制器和方法的全息记录/再现装置

    公开(公告)号：US20080002553A1

    公开(公告)日：2008-01-03

    申请号：US11896402

    申请日：2007-08-31

    申请人： Akihiro Tachibana ,  Satoru Tanaka ,  Yoshihisa Itoh ,  Yoshihisa Kubota ,  Kazuo Kuroda ,  Satoshi Sugiura

    发明人： Akihiro Tachibana ,  Satoru Tanaka ,  Yoshihisa Itoh ,  Yoshihisa Kubota ,  Kazuo Kuroda ,  Satoshi Sugiura

    IPC分类号： G11B7/00

    CPC分类号： G11B7/0938 ,  G11B7/0065 ,  G11B7/083 ,  G11B7/1362

    摘要： A holographic recording and reproducing apparatus comprises: a pickup for moving an objective lens that focuses a coherent light beam along a recording track on a holographic recording medium and for detecting reflected light from the recording track to perform focus- and tracking-servo control; a relative velocity determination unit for determining a relative velocity of a converging position of the objective lens with respect to the holographic recording medium; a driving unit for changing a relative position of the objective lens with respect to an optical path of the coherent light beam so as to make the relative velocity fall within a predetermined range at least during a predetermined period; and a control unit for performing recording or reproduction for a recording layer during the predetermined period. The holographic recording medium includes a plurality of markers used for positioning an optical interference pattern of the coherent light beam.

    摘要翻译： 一种全息记录和再现装置，包括：拾取器，用于移动物镜，沿着记录轨道将相干光束聚焦在全息记录介质上，并用于检测来自记录轨道的反射光，以执行对焦和跟踪伺服控制; 相对速度确定单元，用于确定物镜相对于全息记录介质的会聚位置的相对速度; 驱动单元，用于相对于所述相干光束的光路改变所述物镜的相对位置，以使所述相对速度至少在预定时段期间落在预定范围内; 以及控制单元，用于在预定时段期间执行记录层的记录或再现。 全息记录介质包括用于定位相干光束的光学干涉图案的多个标记。

    Recording device, reproduction device, and recording/reproduction device
    24.
    发明申请
    Recording device, reproduction device, and recording/reproduction device 失效
    记录装置，再现装置和记录/再现装置

    公开(公告)号：US20050249095A1

    公开(公告)日：2005-11-10

    申请号：US10522916

    申请日：2003-07-29

    申请人： Satoru Tanaka ,  Yoshihisa Itoh ,  Akihiro Tachibana ,  Yoshihisa Kubota

    发明人： Satoru Tanaka ,  Yoshihisa Itoh ,  Akihiro Tachibana ,  Yoshihisa Kubota

    IPC分类号： G03H1/16 ,  G03H1/26 ,  G11B7/0065 ,  G11B7/00

    CPC分类号： G11B7/126 ,  G03H1/16 ,  G03H1/26 ,  G03H2222/33 ,  G11B7/0065 ,  G11B7/128

    摘要： A recording apparatus includes a pulse oscillation laser (11), a half mirror (12) for splitting the pulse oscillation light of the laser into a signal light (2) and a reference light (3), an optical shutter (13) disposed in the optical path of the signal light, a beam expander (14) for converting the signal light into a light beam of a predetermined diameter, a spatial modulator (15) for modulating the recording data into two-dimensional image information, a Fourier Transform lens (16) for introducing the signal light modulated by the spatial modulator onto a recording medium (1), mirrors (17, 18) for introducing the reference light onto the recording medium with a predetermined angle, a system control unit (21), a laser driver (22), a system controller (23), a recording medium drive mechanism (24), a modulator driver (25), a data input unit (26a), and a data processing unit (27).

    摘要翻译： 记录装置包括脉冲振荡激光器（11），用于将激光器的脉冲振荡光分成信号光（2）和参考光（3）的半反射镜（12），设置在 信号光的光路，用于将信号光转换为预定直径的光束的扩束器（14），用于将记录数据调制成二维图像信息的空间调制器（15），傅立叶变换透镜 （16），用于将由空间调制器调制的信号光引入到记录介质（1）上，用于以预定角度将参考光引入到记录介质上的反射镜（17,18），系统控制单元（21）， 激光驱动器（22），系统控制器（23），记录介质驱动机构（24），调制器​​驱动器（25），数据输入单元（26a）和数据处理单元（27）。

    Hologram recording/reproducing system
    26.
    发明申请
    Hologram recording/reproducing system 失效
    全息记录/再现系统

    公开(公告)号：US20050169094A1

    公开(公告)日：2005-08-04

    申请号：US10516692

    申请日：2003-05-16

    申请人： Yoshihisa Itoh ,  Satoru Tanaka ,  Akihiro Tachibana ,  Yoshihisa Kubota ,  Kazuo Kuroda ,  Satoshi Sugiura

    发明人： Yoshihisa Itoh ,  Satoru Tanaka ,  Akihiro Tachibana ,  Yoshihisa Kubota ,  Kazuo Kuroda ,  Satoshi Sugiura

    IPC分类号： G03H1/16 ,  G03H1/26 ,  G06K7/12 ,  G06K19/06 ,  G11B7/0065 ,  G11C8/02

    CPC分类号： G03H1/265 ,  G03H1/16 ,  G03H1/26 ,  G03H2260/54 ,  G11B7/0065

    摘要： A hologram recording and reproducing system having compatibility has: a supporting unit for freely attachably supporting a recording medium including a photosensitive material; a signal light-generating unit for projecting a coherent light beam modulated according to a predetermined data into a recording medium and generating a diffraction grating by providing a three-dimensional light interference pattern in the recording medium; a detector unit for detecting and photoelectrically converting a diffracted light from the diffraction grating; and a demodulating unit for demodulating a predetermined data from an output from the detector unit. The detector unit has an intermediate data-generating unit for generating an intermediate data, and the demodulating unit has a conversion table in which the intermediate data and the predetermined data are uniquely associated, and demodulates the predetermined data by performing a computation based on a correlation in the conversion table.

    摘要翻译： 具有兼容性的全息图记录和再现系统具有：用于可自由连接地支撑包括感光材料的记录介质的支撑单元; 信号光产生单元，用于将根据预定数据调制的相干光束投射到记录介质中，并通过在记录介质中提供三维光干涉图案来产生衍射光栅; 用于检测和光电转换衍射光栅的衍射光的检测器单元; 以及解调单元，用于从检测器单元的输出解调预定数据。 检测器单元具有用于产生中间数据的中间数据生成单元，并且解调单元具有其中中间数据和预定数据唯一相关联的转换表，并且通过基于相关性执行计算来解调预定数据 在转换表中。

    Optical pickup apparatus
    27.
    发明授权
    Optical pickup apparatus 失效
    光拾取装置

    公开(公告)号：US6130872A

    公开(公告)日：2000-10-10

    申请号：US81982

    申请日：1998-05-20

    申请人： Satoshi Sugiura ,  Akihiro Tachibana ,  Yoshihisa Kubota

    发明人： Satoshi Sugiura ,  Akihiro Tachibana ,  Yoshihisa Kubota

    IPC分类号： G02B5/32 ,  G02B13/00 ,  G11B7/00 ,  G11B7/09 ,  G11B7/125 ,  G11B7/13 ,  G11B7/135

    CPC分类号： G11B7/1353 ,  G11B7/131 ,  G11B7/13922 ,  G11B2007/0006 ,  G11B7/0909

    摘要： An optical pickup apparatus which can be designed compact while having a plurality of semiconductor lasers. The optical pickup apparatus, which reads recorded information from an optical recording medium, comprises an optical system including light intensity detection means having a quarter-split light receiving surface, two semiconductor lasers for emitting light beams of different wavelengths, an objective lens for directing each of the light beams onto an optical recording medium to form a light spot on a recording surface, and first and second holographic optical elements located between the quarter-split light receiving surface and the objective lens, whereby the first holographic optical element eliminates coma aberration and spherical aberration of a light beam of a first wavelength from one of the semiconductor lasers, traveled through the recording surface, thereby generating a predetermined amount of astigmatism, and the second holographic optical element eliminates coma aberration and spherical aberration of a light beam of a second wavelength from the other one of the semiconductor lasers, traveled through the recording surface, thereby generating a predetermined amount of astigmatism.

    摘要翻译： 可以设计紧凑的光拾取装置，同时具有多个半导体激光器。 从光记录介质读取记录信息的光学拾取装置包括光学系统，其包括具有四分之一分裂光接收表面的光强度检测装置，用于发射不同波长的光束的两个半导体激光器，用于引导每个 的光束到光记录介质上以在记录表面上形成光点，以及位于四分之一分光接收表面和物镜之间的第一和第二全息光学元件，由此第一全息光学元件消除彗差， 来自一个半导体激光器的第一波长的光束的球面像差，行进通过记录表面，从而产生预定量的散光，并且第二全息光学元件消除第二个光束的彗形像差和球面像差 波长从另一个半导体 或激光器行进通过记录表面，从而产生预定量的像散。

    Optical pickup device having heat radiating mechanism
    29.
    发明授权
    Optical pickup device having heat radiating mechanism 失效
    具有散热机构的光拾取装置

    公开(公告)号：US6084841A

    公开(公告)日：2000-07-04

    申请号：US021938

    申请日：1998-02-11

    申请人： Satoshi Sugiura ,  Akihiro Tachibana ,  Yoshihisa Kubota

    发明人： Satoshi Sugiura ,  Akihiro Tachibana ,  Yoshihisa Kubota

    IPC分类号： G11B7/09 ,  G11B7/00 ,  G11B7/125

    CPC分类号： G11B7/1359 ,  G11B7/121 ,  G11B7/1275 ,  G11B7/1362 ,  G11B7/1395 ,  G11B2007/0006

    摘要： An optical pickup device includes at least four light-receiving-surface elements, at least two semiconductor lasers, and an optical system for irradiating a light beam onto an optical recording medium through an objective lens for forming a light spot onto an information recording surface thereof. The optical system guides the return light from the light spot to the four light-receiving-surface elements through the objective. The semiconductor lasers are mounted on a plurality of flat side surfaces of a single heat sink which do not exist on a common virtual plane.

    摘要翻译： 光拾取装置包括至少四个光接收表面元件，至少两个半导体激光器和用于通过用于在其信息记录表面上形成光点的物镜将光束照射到光学记录介质上的光学系统 。 光学系统通过物镜将来自光点的返回光引导到四个光接收表面元件。 半导体激光器安装在不存在于公共虚拟平面上的单个散热器的多个平坦侧表面上。

    Optical pickup device
    30.
    发明授权
    Optical pickup device 失效
    光学拾取装置

    公开(公告)号：US6031667A

    公开(公告)日：2000-02-29

    申请号：US35444

    申请日：1998-03-05

    申请人： Satoshi Sugiura ,  Akihiro Tachibana ,  Yoshihisa Kubota

    发明人： Satoshi Sugiura ,  Akihiro Tachibana ,  Yoshihisa Kubota

    IPC分类号： G11B7/00 ,  G11B7/125 ,  G11B7/135 ,  G02B27/10 ,  G02B27/30

    CPC分类号： G11B7/1359 ,  G11B7/1365 ,  G11B2007/0006 ,  G11B2007/13727

    摘要： Disclosed is an optical pickup device which comprises a beam emitting system for supplying at least two independent light beams, a common light converging optical system for converging the light beams from the beam emitting system toward a recording medium, a first optical element for reflecting one of the light beams from the beam emitting system so as to guide the reflected light beam to the light converging optical system and for transmitting returning light beams from the recording medium therethrough without causing substantial aberration, a second optical element for causing astigmatic aberration to the returned light beams which pass through the first optical element, while transmitting the returning light beams therethrough, and a light receiving system for receiving the returning light beams which have passed through the second optical element.

    摘要翻译： 公开了一种光拾取装置，其包括用于提供至少两个独立光束的光束发射系统，用于将来自光束发射系统的光束会聚到记录介质的公共聚光光学系统，用于反射 来自光束发射系统的光束，以将反射光束引导到聚光光学系统，并且用于从记录介质通过返回光束而不产生实质的像差;第二光学元件，用于引起对返回光的散光像差 通过第一光学元件的光束同时透射返回的光束;以及光接收系统，用于接收已经通过第二光学元件的返回光束。