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13 条记录 (耗时 0.034 秒)

    Signal detector for an optical information reproducing apparatus
    1.
    发明授权
    Signal detector for an optical information reproducing apparatus 失效
    用于光信息再现装置的信号检测器

    公开(公告)号：US5598389A

    公开(公告)日：1997-01-28

    申请号：US299699

    申请日：1994-09-01

    申请人： Junichi Nakano ,  Hiroshi Ezawa ,  Nobuhide Matsubayashi

    发明人： Junichi Nakano ,  Hiroshi Ezawa ,  Nobuhide Matsubayashi

    IPC分类号： G11B7/005 ,  G11B11/105 ,  G11B20/10 ,  G11B20/14 ,  G11B7/00

    CPC分类号： G11B20/10009 ,  G11B11/10515 ,  G11B20/1426 ,  G11B7/005

    摘要： Write data, which has been modulated in a 4/11 mode and converted in an NRZI mode, is written on a sample servo type optical disk by means of a magnetic head and a laser diode in a pickup. A signal reproducer in an optical disk unit comprises a differentiating circuit for differentiating a reproduced signal originating from data recorded on the optical disk after detected by the pickup, an A/D converter for sampling a differential signal synchronously with a channel clock, and a difference detector for reproducing data by performing difference detection on results of A/D conversion. The difference detector includes a register, a selector, and a determiner.

    摘要翻译： 已经以4/11模式调制并以NRZI模式转换的写入数据通过拾取器中的磁头和激光二极管写入样品伺服型光盘。 光盘单元中的信号再现器包括一个微分电路，用于对由拾取器检测到的源自记录在光盘上的数据的再现信号进行微分，用于与通道时钟同步地采样差分信号的A / D转换器， 检测器，用于通过对A / D转换结果执行差分检测来再现数据。 差分检测器包括寄存器，选择器和确定器。

    Optical pick-up apparatus having low coefficient of friction between slide bearing and guiding member
    2.
    发明授权
    Optical pick-up apparatus having low coefficient of friction between slide bearing and guiding member 失效
    在滑动轴承和导向构件之间具有低摩擦系数的光学拾取装置

    公开(公告)号：US5875166A

    公开(公告)日：1999-02-23

    申请号：US681972

    申请日：1996-07-30

    申请人： Tetsuo Ikegame ,  Hiroshi Ezawa ,  Junichi Nakano

    发明人： Tetsuo Ikegame ,  Hiroshi Ezawa ,  Junichi Nakano

    IPC分类号： G11B21/02 ,  G11B7/085 ,  G11B7/00

    CPC分类号： G11B7/08582

    摘要： An optical pick-up apparatus for writing and/or reading information on and/or from an optical record medium including a light source, an objective lens projecting a light beam emitted by the light source onto the optical record medium, a holding member holding the objective lens movably in a focusing direction to perform a focusing control, a carriage to which the holding member is secured, a supporting mechanism for supporting the carriage movably in a tracking direction to effect a tracking control as well as an access control, and a driving member moving a movable member including the objective lens, holding member and carriage in the tracking direction. The supporting mechanism includes guide rails extending in the tracking direction and slide bearings formed in the carriage and coupled with the slide bearings. A coefficient of static friction of the movable member is set to a value not larger than 0.25.

    摘要翻译： 一种用于在包括光源的光学记录介质和/或从光学记录介质读取和/或读取信息的光学拾取装置，将由光源发射的光束投影到光学记录介质上的物镜，保持构件 在聚焦方向可移动地进行聚焦控制的物镜，固定有保持构件的滑架，用于沿跟踪方向可移动地支撑滑架的支撑机构，以进行跟踪控制以及进入控制 构件沿跟踪方向移动包括物镜，保持构件和托架的可动构件。 支撑机构包括沿跟踪方向延伸的导轨和形成在滑架中并与滑动轴承联接的滑动轴承。 可动构件的静摩擦系数设定为0.25以下的值。

    Optical system driving apparatus
    3.
    发明授权
    Optical system driving apparatus 失效
    光学系统驱动装置

    公开(公告)号：US5663843A

    公开(公告)日：1997-09-02

    申请号：US625012

    申请日：1996-03-29

    申请人： Hiroshi Ezawa ,  Tetsuo Ikegame

    发明人： Hiroshi Ezawa ,  Tetsuo Ikegame

    IPC分类号： G11B7/09 ,  G02B7/02

    CPC分类号： G11B7/0935 ,  G11B7/093

    摘要： An optical system driving apparatus including a holder 2 supporting an objective lens 1, resilient supporting members 29a, 29b for supporting the holder movably in a focusing direction Z perpendicular to a record medium, and focusing coils 4a, 4b secured to the holder 2 by means of viscoelastic members 3a and 3b. The focusing coils 4a, 4b and a viscoelastic members 3a, 3b serve as a dynamic damper so that undesired resonance can be effectively suppressed without narrowing a control frequency range.

    摘要翻译： 一种光学系统驱动装置，包括支撑物镜1的支架2，用于在垂直于记录介质的聚焦方向Z上可移动地支撑保持器的弹性支撑构件29a，29b，以及通过装置固定到支架2的聚焦线圈4a，4b 的粘弹件3a和3b。 聚焦线圈4a，4b和粘弹性部件3a，3b用作动态阻尼器，使得可以有效地抑制不期望的谐振而不使控制频率范围变窄。

    Lens drive apparatus
    5.
    发明申请
    Lens drive apparatus 有权
    镜头驱动装置

    公开(公告)号：US20070035860A1

    公开(公告)日：2007-02-15

    申请号：US11502496

    申请日：2006-08-10

    申请人： Yoshiki Adachi ,  Hiroshi Ezawa

    发明人： Yoshiki Adachi ,  Hiroshi Ezawa

    IPC分类号： G02B7/02

    CPC分类号： G02B7/023 ,  G01S7/4814 ,  G01S7/4817 ,  G01S17/42 ,  G02B26/0875 ,  G02B26/101

    摘要： Shafts are fixed to a base and extend in a direction parallel to a center axis of a through hole of the base. Two yoke arrangements are installed to the shafts. A lens holder frame holds a lens, which has an optical axis parallel to the central axis of the through hole of the base. The lens holder frame is axially placed in a space between the two yoke arrangements and is swingably supported by a plurality of wire springs, which are fixed to the base. Drive coils are fixed to the lens holder frame and generate a drive force to move the lens holder frame.

    摘要翻译： 轴固定在基座上，并且在与基座的通孔的中心轴平行的方向上延伸。 两个轭装置安装在轴上。 透镜架框架保持透镜，该透镜具有与基座的通孔的中心轴平行的光轴。 透镜保持架被轴向地放置在两个轭装置之间的空间中，并且被固定到基座上的多个线弹簧可摆动地支撑。 驱动线圈固定在透镜支架框架上并产生驱动力以移动透镜架框架。

    Lens drive apparatus
    6.
    发明授权
    Lens drive apparatus 有权
    镜头驱动装置

    公开(公告)号：US07440202B2

    公开(公告)日：2008-10-21

    申请号：US11502496

    申请日：2006-08-10

    申请人： Yoshiki Adachi ,  Hiroshi Ezawa

    发明人： Yoshiki Adachi ,  Hiroshi Ezawa

    IPC分类号： G02B7/02 ,  G11B7/00

    CPC分类号： G02B7/023 ,  G01S7/4814 ,  G01S7/4817 ,  G01S17/42 ,  G02B26/0875 ,  G02B26/101

    摘要： Shafts are fixed to a base and extend in a direction parallel to a center axis of a through hole of the base. Two yoke arrangements are installed to the shafts. A lens holder frame holds a lens, which has an optical axis parallel to the central axis of the through hole of the base. The lens holder frame is axially placed in a space between the two yoke arrangements and is swingably supported by a plurality of wire springs, which are fixed to the base. Drive coils are fixed to the lens holder frame and generate a drive force to move the lens holder frame.

    摘要翻译： 轴固定在基座上，并且在与基座的通孔的中心轴平行的方向上延伸。 两个轭装置安装在轴上。 透镜架框架保持透镜，该透镜具有与基座的通孔的中心轴平行的光轴。 透镜保持架被轴向地放置在两个轭装置之间的空间中，并且被固定到基座上的多个线弹簧可摆动地支撑。 驱动线圈固定在透镜支架框架上并产生驱动力以移动透镜架框架。

    Image blur correcting device and image pickup device
    10.
    发明授权
    Image blur correcting device and image pickup device 有权
    图像模糊校正装置和图像拾取装置

    公开(公告)号：US08908272B2

    公开(公告)日：2014-12-09

    申请号：US13194309

    申请日：2011-07-29

    申请人： Hiroshi Ezawa

    发明人： Hiroshi Ezawa

    IPC分类号： G02B27/64 ,  H04N5/232 ,  G03B5/00

    CPC分类号： H04N5/23254 ,  G02B27/646 ,  G03B5/00 ,  G03B2205/0038 ,  G03B2205/0069 ,  H04N5/23287

    摘要： Provided is an image blur correcting device, including: an image pickup element (42); an image pickup element holder (41) movable in an X direction and in a Y direction orthogonal to the optical axis, and has the image pickup element placed thereon in such a manner that two mutually orthogonal sides extend along the X direction and the Y direction; a frame-like base (31) for supporting the image pickup element holder (41) in a movable manner in the X direction and in the Y direction; and first and second electromagnetic drive means, each arranged on sides extending along Y direction of the image pickup element (41), formed of coils (45a, 45b, 46a, 46b)and magnets (47a, 47b, 48a, 48b) for driving the image pickup element holder (41), with respect to the base (31), in the X direction and in the Y direction.

    摘要翻译： 提供一种图像模糊校正装置，包括：图像拾取元件（42）; 图像拾取元件保持件（41），其能够沿与X轴方向正交的X方向和Y方向移动，并且以使得两个相互正交的边沿X方向和Y方向延伸的方式配置有摄像元件 ; 用于在X方向和Y方向上以可移动的方式支撑图像拾取元件保持器的框状基座（31） 以及第一和第二电磁驱动装置，每个第一和第二电磁驱动装置布置在沿着图像拾取元件（41）的Y方向延伸的侧面上，该线圈由用于驱动的​​线圈（45a，45b，46a，46b）和磁体（47a，47b，48a，48b） 相对于基座（31），图像拾取元件保持器（41）在X方向和Y方向上。