知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

180 条记录 (耗时 0.026 秒)

    Optical disc, optical disc unit and method of controlling the optical disc unit
    2.
    发明授权
    Optical disc, optical disc unit and method of controlling the optical disc unit 有权
    光盘，光盘单元以及控制光盘单元的方法

    公开(公告)号：US08199624B2

    公开(公告)日：2012-06-12

    申请号：US12057418

    申请日：2008-03-28

    申请人： Takahiro Matsuda

    发明人： Takahiro Matsuda

    IPC分类号： G11B5/55 ,  G11B7/125 ,  G11B5/00 ,  G11B7/12 ,  G11B7/20 ,  G11B7/00

    CPC分类号： G11B7/1267 ,  G11B7/00736 ,  G11B7/0908 ,  G11B7/1369 ,  G11B7/13927 ,  G11B20/10009 ,  G11B20/10388 ,  G11B2007/0013 ,  G11B2220/235 ,  G11B2220/2541 ,  G11B2220/2579

    摘要： When a laser light focal point, driven by an objective lens, passes through each of a plurality of recording layers of an optical disc, data recorded on the recording layers through which the focal point passes may be deteriorated due to a difference in optical sensitivity for each recording layer or the like. In a focal point position movement in which switching of recording layers is made by a focus error signal, when the focal point position moves from a recording layer on which a laser light is focused to another recording layer which is not adjacent, light intensity or light density at the focal point is reduced in accordance with the recording layer to be passed through, thus deterioration of the data on the optical disc being prevented.

    摘要翻译： 当由物镜驱动的激光焦点通过光盘的多个记录层中的每一个时，记录在焦点通过的记录层上的数据可能由于光学灵敏度的差异而劣化 每个记录层等。 在通过聚焦误差信号进行记录层的切换的焦点位置移动中，当焦点位置从激光聚焦的记录层移动到不相邻的另一个记录层时，光强度或光 根据要通过的记录层，焦点处的密度减小，从而防止光盘上的数据的劣化。

    Light source unit, optical detector unit, optical pickup device, and optical disk device
    3.
    发明授权
    Light source unit, optical detector unit, optical pickup device, and optical disk device 失效
    光源单元，光学检测器单元，光学拾取装置和光盘装置

    公开(公告)号：US08174952B2

    公开(公告)日：2012-05-08

    申请号：US12094569

    申请日：2006-11-20

    申请人： Junichi Kitabayashi ,  Takeshi Miki

    发明人： Junichi Kitabayashi ,  Takeshi Miki

    IPC分类号： G11B7/135 ,  G11B7/20

    CPC分类号： G11B7/14 ,  G11B7/127 ,  G11B7/131 ,  G11B7/1353 ,  G11B7/13922 ,  G11B2007/0006 ,  G11B2007/0013

    摘要： A light source unit comprises a plurality of light sources emitting a plurality of light beams. A plurality of volume hologram elements are provided for the plurality of light sources respectively, each volume hologram element having a plane of incidence of an incoming light beam and a plane of outgoing radiation of a diffracted light beam which are perpendicular to each other, the plurality of volume hologram elements having mutually different Bragg conditions in which an optical intensity of a diffracted light beam is set to a maximum.

    摘要翻译： 光源单元包括发射多个光束的多个光源。 为多个光源提供多个体积全息元件，每个体积全息元件具有入射光束的入射平面和彼此垂直的衍射光束的出射辐射平面，多个 具有相互不同的布拉格条件的体全息元件，其中衍射光束的光强度被设定为最大。

    Optical disc and optical disc device
    4.
    发明授权
    Optical disc and optical disc device 有权

    公开(公告)号：US08018812B2

    公开(公告)日：2011-09-13

    申请号：US11878463

    申请日：2007-07-24

    申请人： Hironori Nakahara ,  Nobuo Takeshita ,  Masaharu Ogawa

    发明人： Hironori Nakahara ,  Nobuo Takeshita ,  Masaharu Ogawa

    IPC分类号： G11B7/20

    CPC分类号： G11B27/329 ,  G11B7/00736 ,  G11B7/0079 ,  G11B7/0945 ,  G11B7/1275 ,  G11B7/24038 ,  G11B19/122 ,  G11B20/1217 ,  G11B27/105 ,  G11B2007/0006 ,  G11B2007/0013 ,  G11B2220/235

    摘要： In a multilayer optical disc having information layers conforming to a plurality of different optical disc standards, because the type of each information layer is not recorded in the other information layers, in read and write operations by a compatible optical disc device conforming to a plurality of optical disc standards, every time the information layer being accessed changes, it has been necessary to read the type of the information layer and select a method of generating a tracking error signal adapted to the type of information layer, so access has taken time. In order to solve the above problem, in the optical multilayer disc according to the present invention, having information layers conforming to a plurality of different optical disc standards, in an area in one of the information layers, information about the other information layers is recorded. The time required to access the other information layers can be reduced by using this information to select a tracking error signal generating method.

    Multilayer optical information recording medium, optical head, and optical drive
    5.
    发明授权
    Multilayer optical information recording medium, optical head, and optical drive 有权
    多层光信息记录介质，光头和光驱

    公开(公告)号：US07940628B2

    公开(公告)日：2011-05-10

    申请号：US11883385

    申请日：2006-11-30

    申请人： Shigeyoshi Misawa ,  Shigeru Oouchida

    发明人： Shigeyoshi Misawa ,  Shigeru Oouchida

    IPC分类号： G11B7/20

    CPC分类号： G11B7/24038 ,  B82Y10/00 ,  G11B7/0938

    摘要： A disclosed optical recording medium includes multiple recording layer units in each of which one or more recording layers and one or more middle layers are stacked alternately; and one or more spacer layers. In the disclosed optical recording medium, the recording layer units and the spacer layers are stacked alternately in a depth direction of the optical recording medium.

    摘要翻译： 所公开的光记录介质包括多个记录层单元，每个记录层单元中的一个或多个记录层和一个或多个中间层交替堆叠; 和一个或多个间隔层。 在所公开的光记录介质中，记录层单元和间隔层在光记录介质的深度方向上交替堆叠。

    Optical-pickup-adjustment optical disk, method of adjusting optical pickup device, and method of producing optical pickup device
    7.
    发明授权
    Optical-pickup-adjustment optical disk, method of adjusting optical pickup device, and method of producing optical pickup device 有权
    光拾取调节光盘，调光装置的方法以及光拾取装置的制造方法

    公开(公告)号：US07782730B2

    公开(公告)日：2010-08-24

    申请号：US12071131

    申请日：2008-02-15

    申请人： Masahisa Shinoda ,  Daisuke Matsubara ,  Kenya Nakai ,  Hironori Nakahara

    发明人： Masahisa Shinoda ,  Daisuke Matsubara ,  Kenya Nakai ,  Hironori Nakahara

    IPC分类号： G11B7/26 ,  G11B7/20

    CPC分类号： G11B7/22 ,  G11B7/1376 ,  G11B7/13925

    摘要： An optical-pickup-adjustment optical disk used for adjusting or producing an optical pickup device, includes a transparent protective substrate; and an optical-pickup-adjustment middle-depth information recording layer formed on a side of an inside surface of the transparent protective substrate, wherein the optical-pickup-adjustment middle-depth information recording layer is formed to have a middle depth which is a center of the maximum depth of the maximum-depth information recording layer prescribed by the optical disk standard and the minimum depth of the minimum-depth information recording layer prescribed by the optical disk standard.

    摘要翻译： 用于调整或制造光拾取装置的光拾取调节光盘包括透明保护基片; 以及形成在透明保护基板的内侧的一侧的光拾取器调节中深信息记录层，其中，光拾取器调节中深信息记录层形成为具有中间深度 由光盘标准规定的最大深度信息记录层的最大深度的中心和由光盘标准规定的最小深度信息记录层的最小深度。

    INFORMATION RECORDING MEDIUM, REPRODUCING APPARATUS AND REPRODUCING METHOD
    8.
    发明申请
    INFORMATION RECORDING MEDIUM, REPRODUCING APPARATUS AND REPRODUCING METHOD 有权
    信息记录介质，再现设备和再现方法

    公开(公告)号：US20100208563A1

    公开(公告)日：2010-08-19

    申请号：US12634042

    申请日：2009-12-09

    申请人： Masahito NAKAO ,  Yasumori HINO ,  Yoshiaki KOMMA ,  Fumitomo YAMASAKI ,  Kousei SANO

    发明人： Masahito NAKAO ,  Yasumori HINO ,  Yoshiaki KOMMA ,  Fumitomo YAMASAKI ,  Kousei SANO

    IPC分类号： G11B7/20 ,  G11B7/26

    CPC分类号： G11B7/1267 ,  G11B7/005 ,  G11B7/24038 ,  G11B7/26

    摘要： An information recording medium according to the present invention includes at least three information recording layers. If the readout power of a laser beam in reading information from an information recording layer L(n) is identified by Pw(n), and if the readout power of the laser beam in reading information from an information recording layer L(n+a) is identified by Pw(n+a), then a base thickness between the information recording layers is determined so that the intensity of the light when the information recording layer L(n+a) is irradiated with a laser beam having the readout power Pw(n) becomes equal to or lower than that of the light when the information recording layer L(n+a) is irradiated with a laser beam having the readout power Pw(n+a).

    摘要翻译： 根据本发明的信息记录介质包括至少三个信息记录层。 如果从信息记录层L（n）读取信息中的激光束的读出功率被Pw（n）识别，并且如果从信息记录层L（n + a）读取信息中的激光束的读出功率 ）由Pw（n + a）识别，则信息记录层之间的基底厚度被确定为当信息记录层L（n + a）被激光束照射时具有读出功率的光的强度 当信息记录层L（n + a）被具有读出功率Pw（n + a）的激光束照射时，Pw（n）变得等于或低于光的光。

    Record medium and its reproducer, reproducing method, record medium manufacturing apparatus, record medium manufacturing method, and recorder
    9.
    发明授权
    Record medium and its reproducer, reproducing method, record medium manufacturing apparatus, record medium manufacturing method, and recorder 失效
    记录介质及其再现器，再现方法，记录介质制造装置，记录介质制造方法和记录器

    公开(公告)号：US07689105B2

    公开(公告)日：2010-03-30

    申请号：US10477331

    申请日：2003-03-07

    申请人： Tetsujiro Kondo

    发明人： Tetsujiro Kondo

    IPC分类号： H04N5/91 ,  G11B13/00 ,  G11B7/20 ,  G11B7/24

    CPC分类号： G11B7/24085 ,  G11B7/013 ,  G11B20/00086 ,  G11B20/10 ,  H04N5/926 ,  H04N5/945 ,  H04N9/7925

    摘要： A system and method in which read information is calculated with additional information as a coefficient and has superior in quality to basic information. The read information contains a larger amount of information than the basic information. So, even if an attempt is made to record the read information as it is to any other recording medium, the recording medium having a sufficiently large capacity for storage of the read information. Thus, copy of recorded data in the recording medium to any other recording medium is difficult.

    摘要翻译： 一种系统和方法，其中使用附加信息作为系数计算读取信息并且具有优于基本信息的质量。 读取的信息包含比基本信息更多的信息。 因此，即使试图将读取的信息原样记录到任何其他记录介质，记录介质具有足够大的存储读取信息的容量。 因此，将记录介质中的记录数据复制到任何其它记录介质是困难的。