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公开(公告)号：US20120312114A1
公开(公告)日：2012-12-13
申请号：US13159047
申请日：2011-06-13
IPC分类号： F16H55/18
CPC分类号： F16H57/12 , F16H2057/122
摘要： Certain embodiments of a system for reducing backlash include a member geared for rotation in first and second directions. In various implementations, a first motor causes rotation in the first direction with an output biased to preclude space between mating gear components in the first direction, and a second motor, which is mechanically independent of the first motor, causes rotation in the second direction with an output biased to preclude space between mating gear components in the second direction.
摘要翻译： 用于减少齿隙的系统的某些实施例包括适于在第一和第二方向旋转的构件。 在各种实施方案中，第一电动机在第一方向上引起旋转，其输出被偏置以排除第一方向上的配对齿轮部件之间的空间，并且机械地独立于第一电动机的第二电动机使第二电动机沿第二方向旋转， 输出偏置以防止在第二方向上的配合齿轮部件之间的空间。
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公开(公告)号：US07189909B2
公开(公告)日：2007-03-13
申请号：US10995650
申请日：2004-11-23
CPC分类号： G09B15/00 , G10H2220/455
摘要： A camera assembly for filming the hands of a musician playing a finger board instrument includes a guiding device mounted to the finger board instrument. A stage movably engages the guiding device. A camera is mounted on the stage for filming the hands of the fingerboard user as the hands travel along the finger board. A driving device, such as a linear motor, is connected to the stage for moving the stage along the guiding device. A means for controlling the camera is also provided, either manually from a remote location or by visual tracking. A sensor senses the velocity and position of the stage and outputs a detection signal to the control means. The control means transmits command signals to the driving device for actuating movement of the camera along the guiding device.
摘要翻译： 用于拍摄播放指板式乐器的音乐家的手的相机组件包括安装到指板乐器的引导装置。 台架可移动地接合引导装置。 当手指沿着指板行进时，相机安装在舞台上用于拍摄指板用户的手。 诸如线性电动机的驱动装置连接到用于沿着引导装置移动工作台的工作台。 还可以通过手动从远程位置或通过视觉跟踪来提供用于控制摄像机的装置。 传感器感测台的速度和位置，并向控制装置输出检测信号。 控制装置将命令信号发送到驱动装置，以驱动照相机沿引导装置的移动。
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