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    • 58. 发明授权
    • Force output adjustment in force feedback devices based on user contact
    • 基于用户接触力强制反馈装置的强制输出调整
    • US07965276B1
    • 2011-06-21
    • US09798872
    • 2001-03-01
    • Kenneth M. MartinAdam C. BraunDavid F. Moore
    • Kenneth M. MartinAdam C. BraunDavid F. Moore
    • G09G5/08G09G5/00
    • G06F3/016G06F2203/013G06F2203/015
    • A method and apparatus for adjusting force output from force feedback devices based on user contact with the device. A degree of user contact with a manipulandum of the device is determined by examining the motion of the manipulandum in at least one degree of freedom. A force is output in the degree of freedom of the manipulandum by an actuator of the force feedback device, where a magnitude of the force is adjusted in accordance with the degree of user contact. The force output can be stopped if the user is not contacting the manipulandum, or the forces can be reduced in magnitude if the user has a light contact or reduced grip on the manipulandum. The device can also continue to monitor manipulandum motion to determine when the user is again interacting with the manipulandum and to reapply or increase the magnitude of the forces.
    • 一种用于根据用户与设备接触来调节力反馈装置的力输出的方法和装置。 通过以至少一个自由度检查操纵的动作来确定用户与装置的操纵的接触程度。 通过力反馈装置的致动器在力操作的自由度中输出力,其中根据用户接触程度来调节力的大小。 如果用户没有接触到操纵力,则可以停止力输出,或者如果用户在操作上具有轻微的接触或减少的抓地力,则可以大幅度减小力。 该装置还可以继续监视操纵运动以确定用户何时再次与操纵进行交互并且重新应用或增加力的大小。
    • 60. 发明授权
    • Force feedback device with spring selection mechanism
    • 强力反馈装置采用弹簧选择机构
    • US06380925B1
    • 2002-04-30
    • US09498536
    • 2000-02-04
    • Kenneth M. MartinMichael D. LevinAdam C. Braun
    • Kenneth M. MartinMichael D. LevinAdam C. Braun
    • G06F3033
    • A63F13/24A63F13/02A63F13/06A63F13/285A63F2300/1018A63F2300/1037A63F2300/1043A63F2300/1062A63F2300/8017G05G2009/04766G06F3/016
    • A mechanism for providing selective engagement of spring members to a user manipulatable object in a force feedback interface device. A moveable member included in a force feedback mechanism is moveable in a degree of freedom to transmit forces to the user manipulatable object, such as a joystick handle. A spring member can be selectively coupled and decoupled between a grounded member and the moveable member. The spring member provides a spring force on the moveable member that biases the joystick handle to a desired position, such as the center of the degree of freedom. A dynamic calibration procedure reduces inaccuracies when sensing the position of the user manipulandum by only reading new range limits when the actuator is not outputting a force in the direction of that limit. A capstan drive mechanism is preferably coupled between the actuator and linkage mechanism, where a capstan drum includes a curved end over which the cable is routed, the curved end including flanges to substantially prevent the cable from slipping of the sides of the end. The capstan drum includes a tensioning spring member coupled to one or both ends of the cable for tensioning the cable.
    • 一种用于在力反馈接口装置中提供弹性构件到用户可操纵物体的选择性接合的机构。 包括在力反馈机构中的可移动构件可在自由度上移动以将力传递到用户可操纵的对象,诸如操纵杆手柄。 可以在接地构件和可移动构件之间选择性地联接和分离弹簧构件。 弹簧构件在可移动构件上提供弹簧力,其将操纵杆手柄偏压到期望的位置,例如自由度的中心。 当致动器不在该极限方向上输出力时,动态校准程序通过仅读取新的范围限制来感测用户操纵的位置来减少不准确度。 绞盘驱动机构优选地联接在致动器和联动机构之间,其中主导轮鼓包括弯曲端,电缆在该弯曲端上被路由,弯曲端包括凸缘,以基本上防止电缆滑动端部的侧面。 绞盘鼓包括联接到电缆的一端或两端的张紧弹簧构件,用于张紧电缆。