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    • 11. 发明授权
    • Flight control device, spacecraft, and reference trajectory correcting method
    • 飞行控制装置,航天器和参考轨迹校正方法
    • US09045240B2
    • 2015-06-02
    • US14131502
    • 2012-07-11
    • Tetsuya NagaseAtsushi Sasaki
    • Tetsuya NagaseAtsushi Sasaki
    • G01C23/00B64G1/24
    • B64G1/242B64G1/24B64G1/62
    • A flight control method and device for correcting a reference trajectory based on a distance from a current position to a target position in a spacecraft in flight. A CPU included in the spacecraft generates a reference trajectory which is a trajectory for allowing the spacecraft in flight to arrive at the target position on a celestial body with the atmosphere, and which is identified based on velocity or energy of the spacecraft and on drag acceleration of the spacecraft. The CPU calculates a ratio between the range that is a distance from the current position based on the reference trajectory to the target position, and the real range that is a real distance from a current position to the target position, and corrects the reference trajectory by calculating the drag acceleration in the reference trajectory using the calculated ratio.
    • 一种飞行控制方法和装置,用于基于从飞行中的航天器中的当前位置到目标位置的距离来校正参考轨迹。 包括在航天器中的CPU产生参考轨迹,该轨迹是允许飞行中的航天器到达具有大气的天体上的目标位置的轨迹,并且基于航天器的速度或能量以及拖曳加速度来识别 的航天器。 CPU根据基准轨迹计算与当前位置距离的距离与目标位置之间的距离,以及作为从当前位置到目标位置的实际距离的实际范围,并将基准轨迹修正为 使用计算的比率计算参考轨迹中的拖动加速度。
    • 14. 发明申请
    • FLIGHT CONTROL DEVICE, SPACECRAFT, AND REFERENCE TRAJECTORY CORRECTING METHOD
    • 飞行控制装置,空间和参考轨迹校正方法
    • US20140136029A1
    • 2014-05-15
    • US14131502
    • 2012-07-11
    • Tetsuya NagaseAtsushi Sasaki
    • Tetsuya NagaseAtsushi Sasaki
    • B64G1/24
    • B64G1/242B64G1/24B64G1/62
    • A flight control method and device for correcting a reference trajectory based on a distance from a current position to a target position in a spacecraft in flight. A CPU included in the spacecraft generates a reference trajectory which is a trajectory for allowing the spacecraft in flight to arrive at the target position on a celestial body with the atmosphere, and which is identified based on velocity or energy of the spacecraft and on drag acceleration of the spacecraft. The CPU calculates a ratio between the range that is a distance from the current position based on the reference trajectory to the target position, and the real range that is a real distance from a current position to the target position, and corrects the reference trajectory by calculating the drag acceleration in the reference trajectory using the calculated ratio.
    • 一种飞行控制方法和装置,用于基于从飞行中的航天器中的当前位置到目标位置的距离来校正参考轨迹。 包括在航天器中的CPU产生参考轨迹,该轨迹是允许飞行中的航天器到达具有大气的天体上的目标位置的轨迹,并且基于航天器的速度或能量以及拖曳加速度来识别 的航天器。 CPU根据基准轨迹计算与当前位置距离的距离与目标位置之间的距离,以及作为从当前位置到目标位置的实际距离的实际范围,并将基准轨迹修正为 使用计算的比率计算参考轨迹中的拖动加速度。
    • 15. 发明授权
    • Optical scanning apparatus having an air path for airflow generated by a rotating mirror
    • 具有由旋转镜产生的气流的空气路径的光学扫描装置
    • US08199391B2
    • 2012-06-12
    • US11466179
    • 2006-08-22
    • Tetsuya Nagase
    • Tetsuya Nagase
    • G02B26/08
    • G02B26/121B41J2/471G03G15/0435G03G2215/0402
    • At least one exemplary embodiment is directed to a first airflow guide device covering an upper portion of a polygon mirror and having respective opening portions in an upper surface and a lower surface. The lower surface opening portion can have an annular wall opened in the direction all around the perimeter of the polygon mirror, facilitating an airflow path capable of circulating an airflow between the upper surface opening portion and the lower surface opening portion. Thus, airflow generated in a vertical direction in association with the rotation of the polygon motor, is guided, and variations in pressure applied to the polygon motor are reduced, thus facilitating an increase in the rotation accuracy of the polygon motor.
    • 至少一个示例性实施例涉及覆盖多面镜的上部并且在上表面和下表面中具有相应开口部分的第一气流引导装置。 下表面开口部分可以具有围绕多面镜的周边的方向开口的环形壁,便于能够在上表面开口部分和下表面开口部分之间循环气流的气流通道。 因此,引导与多边形电动机的旋转相关联的在垂直方向上产生的气流,并且减小施加到多面体电动机的压力变化,从而有助于增加多边形电动机的旋转精度。
    • 17. 发明申请
    • Image Forming Apparatus
    • 图像形成装置
    • US20070231012A1
    • 2007-10-04
    • US11758378
    • 2007-06-05
    • Masahiko YokotaTetsuya NagaseHiroshi NakahataToshihiko KudoYukihiro Fujiwara
    • Masahiko YokotaTetsuya NagaseHiroshi NakahataToshihiko KudoYukihiro Fujiwara
    • G03G15/01
    • G03G15/0173G03G15/0121G03G2215/0177
    • The present invention relates to an image forming apparatus comprising: an exposing means and a developing means. The developing means comprises a plurality of developing devices, a rotating member rotatable while supporting the plurality of the developing devices, and a driving means for the rotation drive of the rotating member for selectively moving the plurality of the developing devices to the developing position such that the driving means transmits driving force to the rotating member via a gear at a drive transmitting position. An angle θe(°) formed by a straight line linking the rotation center of the rotating member and the drive transmitting position and the tangent of the image bearing member at an exposing position in the image bearing member moving direction satisfies the following relationship with the premise that an pressure angle of the gear is α(°) and the image bearing member rotating direction is positive:−α≦θe≦α.
    • 本发明涉及一种图像形成装置,包括:曝光装置和显影装置。 显影装置包括多个显影装置,在支撑多个显影装置的同时可旋转的旋转构件,以及用于旋转构件的旋转驱动的驱动装置,用于选择性地将多个显影装置移动到显影位置,使得 驱动装置通过驱动传动位置处的齿轮将驱动力传递到旋转构件。 在图像承载部件移动方向的曝光位置处,通过将旋转部件的旋转中心与驱动传递位置与图像承载部件的切线连接的直线形成的角度θe(°)满足以下关系: 齿轮的压力角为α(°),图像承载部件旋转方向为正:-α<=θe<=α。
    • 18. 发明申请
    • OPTICAL SCANNING APPARATUS
    • 光学扫描仪
    • US20070058235A1
    • 2007-03-15
    • US11466179
    • 2006-08-22
    • Tetsuya Nagase
    • Tetsuya Nagase
    • G02B26/08
    • G02B26/121B41J2/471G03G15/0435G03G2215/0402
    • At least one exemplary embodiment is directed to a first airflow guide device covering an upper portion of a polygon mirror and having respective opening portions in an upper surface and a lower surface. The lower surface opening portion can have an annular wall opened in the direction all around the perimeter of the polygon mirror, facilitating an airflow path capable of circulating an airflow between the upper surface opening portion and the lower surface opening portion. Thus, airflow generated in a vertical direction in association with the rotation of the polygon motor, is guided, and variations in pressure applied to the polygon motor are reduced, thus facilitating an increase in the rotation accuracy of the polygon motor.
    • 至少一个示例性实施例涉及覆盖多面镜的上部并且在上表面和下表面中具有相应开口部分的第一气流引导装置。 下表面开口部分可以具有围绕多面镜的周边的方向开口的环形壁,便于能够在上表面开口部分和下表面开口部分之间循环气流的气流通道。 因此,引导与多边形电动机的旋转相关联的在垂直方向上产生的气流,并且减小施加到多面体电动机的压力变化,从而有助于增加多边形电动机的旋转精度。