Optical distributor
    21.
    发明授权
    Optical distributor 失效
    光分配器

    公开(公告)号:US4600267A

    公开(公告)日:1986-07-15

    申请号:US696660

    申请日:1985-01-31

    IPC分类号: G02B6/28 G02B6/26 G02B6/32

    CPC分类号: G02B6/2848

    摘要: An optical directional coupler of the invention has a first surface which is formed at the one end of a first or second graded index type light transmission body and which is perpendicular to the optical axis of the light transmission body, and also has a plurality of second surfaces which are formed at parts of the one end of the light transmission body which are different from the first surface. The light which is transmitted from a first optical fiber through the first surface is further transmitted through the second light transmission body, and then becomes incident on a second optical fiber. The light which is transmitted from the first optical fiber through the second surfaces is further transmitted through the second light transmission body and then becomes incident on a plurality of third optical fibers.

    摘要翻译: 本发明的光学定向耦合器具有第​​一表面,该第一表面形成在第一或第二渐变折射率透光体的一端并且垂直于光透射体的光轴,并且还具有多个第二 形成在透光体的一端的与第一面不同的部分的表面。 从第一光纤通过第一表面透射的光进一步透过第二透光体,然后入射到第二光纤上。 从第一光纤穿过第二表面透射的光进一步透射穿过第二透光体,然后入射到多个第三光纤上。

    Optical disc discrimination method, optical disc device and integrated circuit
    22.
    发明授权
    Optical disc discrimination method, optical disc device and integrated circuit 有权
    光盘识别方法,光盘装置和集成电路

    公开(公告)号:US08335141B2

    公开(公告)日:2012-12-18

    申请号:US13319435

    申请日:2011-03-03

    IPC分类号: G11B15/04

    摘要: Provided are an optical disc discrimination method, an optical disc device and an integrated circuit that enable to accurately discriminate the type of an optical disc. The optical disc discrimination method comprises a first seeking step (S3) of performing a seek operation to a predetermined reference address in a user data area; a second seeking step (S5) of performing a seek operation from the reference address sought in the first seeking step (S3) to a predetermined target address in a physical information area, an address reading step (S7) of reading a current address at a position sought in the second seeking step (S5), and an optical disc type determination step (S8 through S10) of determining the type of the optical disc loaded in the optical disc device, based on the current address read in the address reading step (S7).

    摘要翻译: 提供了能够准确地区分光盘的类型的光盘鉴别方法,光盘装置和集成电路。 光盘识别方法包括对用户数据区中的预定参考地址执行寻道操作的第一寻找步骤(S3) 从第一搜索步骤(S3)中寻找的参考地址执行寻道操作到物理信息区域中的预定目标地址的第二寻找步骤(S5);读取在物理信息区域中的当前地址的地址读取步骤(S7) 基于在地址读取步骤中读取的当前地址,确定装载在光盘装置中的光盘的类型的光盘类型确定步骤(S8至S10) S7)。

    Fibrous basic magnesium sulfate-containing pellets and production of molded propylene polymer products
    23.
    发明授权
    Fibrous basic magnesium sulfate-containing pellets and production of molded propylene polymer products 有权
    含纤维碱性硫酸镁颗粒和生产模塑丙烯聚合物产品

    公开(公告)号:US08247485B2

    公开(公告)日:2012-08-21

    申请号:US13014073

    申请日:2011-01-26

    IPC分类号: C08K3/30

    摘要: Fibrous basic magnesium sulfate-containing pellets comprising an olefin polymer and fibrous basic magnesium sulfate in a weight ratio of 80:20 to 20:80 and further comprising a nucleating agent in an amount of 0.3 to 8 weight parts based on 100 weight parts of the olefin polymer and in an amount of 0.2 to 4 weight parts based on 100 weight parts of the fibrous basic magnesium sulfate are favorably employable for producing molded fibrous basic magnesium sulfate-containing propylene polymer products which show high flexural modulus, high flexural strength and high yield strength in tension as well as excellent thermal stability.

    摘要翻译: 含有碱性硫酸镁的纤维素颗粒,其包含重量比为80:20至20:80的烯烃聚合物和纤维状碱式硫酸镁,并且还包含0.3至8重量份的成核剂,基于100重量份 烯烃聚合物,相对于100重量份的纤维状碱性硫酸镁为0.2〜4重量份,优选用于制造成型的含有纤维状碱性硫酸镁的丙烯聚合物产品,其显示高挠曲模量,高弯曲强度和高收率 张力强度以及出色的热稳定性。

    Fibrous Basic Magnesium Sulfate-Containing Pellets and Production of Molded Propylene Polymer Products
    24.
    发明申请
    Fibrous Basic Magnesium Sulfate-Containing Pellets and Production of Molded Propylene Polymer Products 有权
    纤维基本含硫酸镁颗粒和成型丙烯聚合物产品的生产

    公开(公告)号:US20120029123A1

    公开(公告)日:2012-02-02

    申请号:US13014073

    申请日:2011-01-26

    摘要: Fibrous basic magnesium sulfate-containing pellets comprising an olefin polymer and fibrous basic magnesium sulfate in a weight ratio of 80:20 to 20:80 and further comprising a nucleating agent in an amount of 0.3 to 8 weight parts based on 100 weight parts of the olefin polymer and in an amount of 0.2 to 4 weight parts based on 100 weight parts of the fibrous basic magnesium sulfate are favorably employable for producing molded fibrous basic magnesium sulfate-containing propylene polymer products which show high flexural modulus, high flexural strength and high yield strength in tension as well as excellent thermal stability.

    摘要翻译: 含有碱性硫酸镁的纤维素颗粒,其包含重量比为80:20至20:80的烯烃聚合物和纤维状碱式硫酸镁,并且还包含0.3至8重量份的成核剂,基于100重量份 烯烃聚合物,相对于100重量份的纤维状碱性硫酸镁为0.2〜4重量份,优选用于制造成型的含有纤维状碱性硫酸镁的丙烯聚合物产品,其显示高挠曲模量,高弯曲强度和高收率 张力强度以及出色的热稳定性。

    Tracking control device, tracking control method, and optical disc apparatus
    25.
    发明授权
    Tracking control device, tracking control method, and optical disc apparatus 有权
    跟踪控制装置,跟踪控制方法和光盘装置

    公开(公告)号:US08085631B2

    公开(公告)日:2011-12-27

    申请号:US12793038

    申请日:2010-06-03

    IPC分类号: G11B7/00

    摘要: The invention provides a tracking control device, a tracking control method, and an optical disc apparatus that enable to stably perform the tracking control, and reduce an influence of stray light from the other layer on the tracking control. A sub push-pull signal correcting section corrects a sub push-pull signal to be generated from returning light of a sub beam in such a manner that a track crossing component of a main push-pull signal to be generated from returning light of a main beam, and a track crossing component of the sub push-pull signal to be generated from the returning light of the sub beam are canceled. A low pass filter reduces a high frequency component of the sub push-pull signal corrected by the sub push-pull signal correcting section. A subtractor subtracts a sub push-pull signal passing the low pass filter from the main push-pull signal to thereby generate a tracking error signal.

    摘要翻译: 本发明提供一种跟踪控制装置,跟踪控制方法和光盘装置,其能够稳定地执行跟踪控制,并且减少来自另一层的杂散光对跟踪控制的影响。 子推挽信号校正部分校正从子光束的返回光产生的副推挽信号,使得从主信号的返回光产生的主推挽信号的轨道交叉分量 并且从副光束的返回光产生的副推挽信号的轨迹交叉分量被消除。 低通滤波器降低由副推挽信号校正部校正的副推挽信号的高频分量。 减法器从主推挽信号中减去通过低通滤波器的副推挽信号,从而产生跟踪误差信号。

    Optical disc apparatus and seek processing method
    26.
    发明授权
    Optical disc apparatus and seek processing method 有权
    光盘装置和寻道处理方法

    公开(公告)号:US07995428B2

    公开(公告)日:2011-08-09

    申请号:US12294333

    申请日:2007-03-23

    申请人: Takashi Kishimoto

    发明人: Takashi Kishimoto

    IPC分类号: G11B7/00

    摘要: An optical disc apparatus of the present invention includes an optical head (103) including a lens disposed at a position shifted from a traverse axis in a tangential direction, a traverse motor (104) as a second moving unit that moves the optical head (103) in a direction traversing tracks of the optical disc (101), a number-of-tracks calculating part (123) that calculates, as the number of tracks to be sought, the number of tracks that the optical head will traverse when moving from a first address to a second address of the optical disc (101), a tracking-drive-signal-at-seek generating part (112) and a traverse-drive-signal-at-seek generating part (119) as seek controlling units that move a convergent point of an optical beam from the first address to the second address, and a number-of-tracks correcting part (124) that corrects the number of tracks to be sought according to a shift amount of the lens from the traverse axis.

    摘要翻译: 本发明的光盘装置包括光头(103),其包括设置在沿切线方向从横动轴偏移的位置的透镜;移动光头(103)的第二移动单元的横动电机(104) )沿着光盘(101)的轨道的方向移动,轨道数计算部(123),其计算作为要寻找的轨道数,光头将从 第一地址到光盘(101)的第二地址,跟踪驱动信号搜索生成部分(112)和遍历驱动信号搜索生成部分(119),作为寻道控制单元 将光束的收敛点从第一地址移动到第二地址,以及轨道数量修正部分(124),其根据来自横越的透镜的偏移量来校正要搜索的轨道的数量 轴。

    Optical disk drive for discriminating types of optical disks
    27.
    发明授权
    Optical disk drive for discriminating types of optical disks 有权
    用于识别光盘类型的光盘驱动器

    公开(公告)号:US07804753B2

    公开(公告)日:2010-09-28

    申请号:US11575322

    申请日:2006-01-19

    IPC分类号: G11B7/00

    CPC分类号: G11B19/12 G11B2007/0006

    摘要: After an optical disk drive according to the present invention has been loaded with an optical disk and before the operation of recognizing the type of the given disk is finished, the drive presumes one of multiple types of candidate optical disks, from/on which data is readable and writable using a light beam with the shortest wavelength among the candidate disks, to be the disk being driven by the motor now and gets the beam for the presumed type of disk radiated from a light source (Step (A)). Next, the drive gets the disk spun at a rotational velocity that realizes a linear velocity equal to or higher than a standardized normal velocity when data is read from the presumed type of disk (Step (B)). Thereafter, the drive starts a focus control in a situation where the spot of the beam being formed on the disk is moving on the disk at the linear velocity equal to or higher than the normal velocity (Step (C)). And then the drive performs the operation of recognizing the type of the disk by the light beam reflected from the disk under the focus control (Step (D)).

    摘要翻译: 在根据本发明的光盘驱动器已经装载了光盘之后,并且在识别给定盘的类型的操作完成之前,驱动器假定多种类型的候选光盘中的一种从哪个数据是 使用候选盘之中具有最短波长的光束可读写可以由电机现在驱动,并获得用于从光源辐射的推测型光盘的光束(步骤(A))。 接下来,当从推定的盘类型读取数据时,驱动器以实现线速度等于或高于标准化正常速度的旋转速度获得盘(步骤(B))。 此后,驱动器开始聚焦控制,其中形成在光盘上的光束的斑点以等于或高于正常速度的线速度在盘上移动(步骤(C))。 然后,驱动器通过在聚焦控制下从盘反射的光束来执行识别盘的类型的操作(步骤(D))。

    OPTICAL DISC APPARATUS AND SEEK PROCESSING METHOD
    29.
    发明申请
    OPTICAL DISC APPARATUS AND SEEK PROCESSING METHOD 有权
    光盘设备和SEEK处理方法

    公开(公告)号:US20090116347A1

    公开(公告)日:2009-05-07

    申请号:US12294333

    申请日:2007-03-23

    申请人: Takashi Kishimoto

    发明人: Takashi Kishimoto

    IPC分类号: G11B7/00

    摘要: An optical disc apparatus of the present invention includes an optical head (103) including a lens disposed at a position shifted from a traverse axis in a tangential direction, a traverse motor (104) as a second moving unit that moves the optical head (103) in a direction traversing tracks of the optical disc (101), a number-of-tracks calculating part (123) that calculates, as the number of tracks to be sought, the number of tracks that the optical head will traverse when moving from a first address to a second address of the optical disc (101), a tracking-drive-signal-at-seek generating part (112) and a traverse-drive-signal-at-seek generating part (119) as seek controlling units that move a convergent point of an optical beam from the first address to the second address, and a number-of-tracks correcting part (124) that corrects the number of tracks to be sought according to a shift amount of the lens from the traverse axis.

    摘要翻译: 本发明的光盘装置包括光头(103),其包括设置在沿切线方向从横动轴偏移的位置的透镜;移动光头(103)的第二移动单元的横动电机(104) )沿着光盘(101)的轨道的方向移动,轨道数计算部(123),其计算作为要寻找的轨道数,光头将从 第一地址到光盘(101)的第二地址,跟踪驱动信号搜索生成部分(112)和遍历驱动信号搜索生成部分(119),作为寻道控制单元 将光束的收敛点从第一地址移动到第二地址,以及轨道数量修正部分(124),其根据来自横越的透镜的偏移量来校正要搜索的轨道的数量 轴。