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74 条记录 (耗时 0.02 秒)

    Lens Drive Unit
    1.
    发明申请
    Lens Drive Unit 失效
    镜头驱动单元

    公开(公告)号：US20080285162A1

    公开(公告)日：2008-11-20

    申请号：US10585530

    申请日：2005-01-05

    申请人： Yuji Fujita ,  Noboru Otsuki

    发明人： Yuji Fujita ,  Noboru Otsuki

    IPC分类号： G02B7/02

    CPC分类号： G02B7/08 ,  G02B13/001 ,  G02B13/0035 ,  G02B13/009

    摘要： In the lens drive unit; the position retaining parts are advanced by rotating the position retaining member, which is held in the case body in such a manner as to become rotatable, in the R direction so that the position retaining parts are positioned just under the protrusion parts of the movable lens body, and eventually the movable lens body can be retained at the middle position. Furthermore, the through-holes are advanced by rotating the position retaining member in the R direction so that the through-holes are positioned just under the protrusion parts of the movable lens body, and eventually the protrusion parts loosely get fitted into the through-holes of the position retaining member to enable the body tube holder to move downward.

    摘要翻译： 镜头驱动单元; 通过沿R方向旋转保持在壳体中的位置保持构件，使得位置保持部分在R方向上旋转，使得位置保持部分位于可移动透镜的突出部分正下方 身体，并且最终可移动的镜体可保持在中间位置。 此外，通过在R方向上旋转位置保持构件使通孔前进，使得通孔位于可移动透镜体的突出部分的正下方，并且最终突出部分松动地装配到通孔中 的位置保持构件，以使主体管保持器能够向下移动。

    Lens drive unit
    2.
    发明授权
    Lens drive unit 失效
    镜头驱动单元

    公开(公告)号：US07630151B2

    公开(公告)日：2009-12-08

    申请号：US10585530

    申请日：2005-01-05

    申请人： Yuji Fujita ,  Noboru Otsuki

    发明人： Yuji Fujita ,  Noboru Otsuki

    IPC分类号： G02B7/02

    CPC分类号： G02B7/08 ,  G02B13/001 ,  G02B13/0035 ,  G02B13/009

    摘要： In the lens drive unit; the position retaining parts are advanced by rotating the position retaining member, which is held in the case body in such a manner as to become rotatable, in the R direction so that the position retaining parts are positioned just under the protrusion parts of the movable lens body, and eventually the movable lens body can be retained at the middle position. Furthermore, the through-holes are advanced by rotating the position retaining member in the R direction so that the through-holes are positioned just under the protrusion parts of the movable lens body, and eventually the protrusion parts loosely get fitted into the through-holes of the position retaining member to enable the body tube holder to move downward.

    摘要翻译： 镜头驱动单元; 通过沿R方向旋转保持在壳体中的位置保持构件，使得位置保持部分在R方向上旋转，使得位置保持部分位于可移动透镜的突出部分正下方 身体，并且最终可移动的镜体可保持在中间位置。 此外，通过在R方向上旋转位置保持构件使通孔前进，使得通孔位于可移动透镜体的突出部分的正下方，并且最终突出部分松动地装配到通孔中 的位置保持构件，以使主体管保持器能够向下移动。

    Lens driving apparatus, thin camera, and a cellular phone having a thin camera
    3.
    发明授权
    Lens driving apparatus, thin camera, and a cellular phone having a thin camera 失效
    透镜驱动装置，薄型照相机以及具有薄型照相机的便携式电话机

    公开(公告)号：US07064912B2

    公开(公告)日：2006-06-20

    申请号：US10685548

    申请日：2003-10-15

    申请人： Toshio Yamamoto ,  Noboru Otsuki ,  Yoshifusa Miyasaka ,  Yuji Fujita

    发明人： Toshio Yamamoto ,  Noboru Otsuki ,  Yoshifusa Miyasaka ,  Yuji Fujita

    IPC分类号： G02B7/02 ,  G02B15/14

    CPC分类号： G02B13/0035 ,  G02B7/021 ,  G02B7/023 ,  G02B7/102 ,  G02B13/009

    摘要： A lens driving apparatus includes a lens holder and a driver for providing linear motion to the lens holder along an optical axis of the lens. The driver includes an electromagnetic mechanism, provided at the outer circumference of the lens holder in an enclosing manner, for generating a torque around the optical axis; and a switching mechanism for switching the generated torque to a linear driving force along the optical axis so as to linearly move the lens holders. The driver surrounds the lens holder along the outer circumference to allow a smaller sized lens driving apparatus than that where the lens holder is at a side of the lens driving apparatus. In addition, the switching mechanism prevents the lens holder from moving in the optical axial direction, when power is turned off or even when an external force is applied to the lens holder.

    摘要翻译： 透镜驱动装置包括透镜保持器和用于沿着透镜的光轴向透镜保持器提供线性运动的驱动器。 驱动器包括电磁机构，以包围方式设置在透镜保持器的外周，用于产生围绕光轴的转矩; 以及用于将所产生的扭矩沿着光轴切换成线性驱动力以使得透镜保持器线性移动的切换机构。 驱动器沿着外周围包围透镜架，以允许比透镜架位于透镜驱动装置一侧的透镜驱动装置更小的尺寸。 此外，切换机构防止透镜夹持器在光轴方向移动，当电源关闭时，或者即使当外力施加到透镜保持器时。

    Electric motor control system
    5.
    发明授权
    Electric motor control system 有权
    电动机控制系统

    公开(公告)号：US08598826B2

    公开(公告)日：2013-12-03

    申请号：US13139353

    申请日：2009-11-02

    申请人： Yasuyuki Danjo ,  Naoki Imai ,  Yuji Fujita ,  Fumio Anraku

    发明人： Yasuyuki Danjo ,  Naoki Imai ,  Yuji Fujita ,  Fumio Anraku

    IPC分类号： H02P7/00

    CPC分类号： H02P27/06 ,  B60L3/003 ,  B60L11/14 ,  H02M2001/0009 ,  H02P29/0241 ,  Y02T10/642 ,  Y02T10/70 ,  Y02T10/7077

    摘要： There is provided a control system for an electric motor to which electric power is supplied from a DC power supply via a multi-phase inverter, the multi-phase inverter including switch units respectively provided on a positive side and a negative side of arms corresponding to respective phases, each switch unit including a switching element and a reflux diode connected in parallel thereto. The control system comprises a phase current detection unit for detecting phase currents which flow between the inverter and the electric motor, a DC component acquiring unit for acquiring DC components of the respective phase currents, and a short-circuiting determination unit for determining that a short-circuit failure occurs in the inverter when at least one of the DC components of the phase currents acquired by the DC component acquiring unit exceeds a threshold. Consequently, the short-circuit failure of the inverter can be detected even though the control of the electric motor is stopped.

    摘要翻译： 提供了一种用于通过多相逆变器从直流电源供给电力的电动机的控制系统，所述多相逆变器包括分别设置在相对应的臂的正侧和负侧的开关单元 各个相位，每个开关单元包括并联连接的开关元件和回流二极管。 该控制系统包括用于检测在逆变器和电动机之间流动的相电流的相电流检测单元，用于获取各相电流的DC分量的DC分量获取单元，以及用于确定短路的短路确定单元 当由DC分量获取单元获取的相电流的DC分量中的至少一个超过阈值时，在逆变器中发生电路故障。 因此，即使电动机的控制停止，也可以检测出逆变器的短路故障。

    Current to voltage converter and current to voltage conversion method
    6.
    发明申请
    Current to voltage converter and current to voltage conversion method 有权
    电流到电压转换器和电流到电压转换方法

    公开(公告)号：US20080012606A1

    公开(公告)日：2008-01-17

    申请号：US11808365

    申请日：2007-06-08

    申请人： Yuji Fujita

    发明人： Yuji Fujita

    IPC分类号： H02M11/00

    CPC分类号： G05F3/242

    摘要： A current to voltage converter that includes a first voltage generator to generate a first voltage according to an input current. a reference voltage generator to output a first reference voltage which is higher than the first voltage, a second voltage generator to generate a second voltage which is lower than the first voltage and fluctuate with a delay in response to a fluctuation in the first voltage, a first comparing unit to compare the first reference voltage with the second voltage and select either the first reference voltage or the second voltage and a second comparing unit to compare the second reference voltage with the first voltage.

    摘要翻译： 一种电流 - 电压转换器，包括根据输入电流产生第一电压的第一电压发生器。 参考电压发生器，用于输出高于第一电压的第一参考电压;第二电压发生器，用于产生低于第一电压的第二电压，并响应于第一电压的波动而延迟波动; 第一比较单元，用于比较第一参考电压和第二电压，并选择第一参考电压或第二电压;以及第二比较单元，用于将第二参考电压与第一电压进行比较。

    Lens, optical head apparatus, and objective lens for the optical head apparatus
    7.
    发明授权
    Lens, optical head apparatus, and objective lens for the optical head apparatus 失效
    透镜，光学头装置和用于光学头装置的物镜

    公开(公告)号：US07304934B2

    公开(公告)日：2007-12-04

    申请号：US10833680

    申请日：2004-04-28

    申请人： Kenichi Hayashi ,  Yuji Fujita ,  Yoshifusa Miyasaka ,  Tetsuro Okamura

    发明人： Kenichi Hayashi ,  Yuji Fujita ,  Yoshifusa Miyasaka ,  Tetsuro Okamura

    IPC分类号： G11B7/00

    CPC分类号： G11B7/1374 ,  G11B7/1353 ,  G11B2007/0006

    摘要： A common objective lens typically used in reading data from different optical data storage media that are responsive to laser beams of different wavelengths, such as CD and DVD is provided. The lens has a refracting surface with inner and outer refracting surface regions. Diffraction gratings are provided in both the inner and outer refracting surface regions with each having a differential optical path function. The inner diffraction grating and at least a part of the outer diffraction grating emit an order of diffracted beams which have different polarities to cancel out any spherical aberrations caused by a change in temperature.

    摘要翻译： 提供通常用于从不同光学数据存储介质读取数据的通用物镜，其响应不同波长的激光束，例如CD和DVD。 透镜具有折射表面，其具有内部和外部折射表面区域。 衍射光栅都设在内折射表面区域和外折射表面区域中，每个具有差分光路函数。 内部衍射光栅和外部衍射光栅的至少一部分发射具有不同极性的衍射光束的次序以抵消由温度变化引起的任何球面像差。

    Photocurrent-to-voltage conversion apparatus including non-diode-connected clamping MOS transistor
    9.
    发明申请
    Photocurrent-to-voltage conversion apparatus including non-diode-connected clamping MOS transistor 失效
    包括非二极管连接的钳位MOS晶体管的光电流 - 电压转换装置

    公开(公告)号：US20050023443A1

    公开(公告)日：2005-02-03

    申请号：US10900185

    申请日：2004-07-28

    申请人： Yuji Fujita

    发明人： Yuji Fujita

    IPC分类号： H03F3/68 ,  H03F1/34 ,  H03F3/08 ,  H04B10/40 ,  H04B10/50 ,  H04B10/60 ,  H04B10/67 ,  H04B10/69 ,  H01J40/14

    CPC分类号： H03F3/082

    摘要： In a photocurrent-to-voltage conversion apparatus for converting a photocurrent flowing through a light receiving element into a detection voltage, an amplifier, a feedback resistor and a clamping MOS transistor are provided. The amplifier has an input connected to the light receiving element and an output for generating the detection voltage, and includes (2n+1) inverter stages connected in series where n is 1, 2 . . . . The feedback resistor and the clamping transistor are connected between the output and input of the amplifier. The clamping MOS transistor is controlled by an output voltage of a non-final inverter one of the inverter stages.

    摘要翻译： 在将通过光接收元件流过的光电流转换为检测电压的光电流 - 电压转换装置中，提供放大器，反馈电阻器和钳位MOS晶体管。 该放大器具有连接到光接收元件的输入端和用于产生检测电压的输出端，并且包括串联连接在其中n为1,2的（2n + 1）个反相器级。 。 。 。 反馈电阻和钳位晶体管连接在放大器的输出和输入端之间。 钳位MOS晶体管由逆变器级之一的非最终逆变器的输出电压控制。