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    • 1. 发明授权
    • Position sensing methods for interface devices
    • 接口设备的位置检测方法
    • US08552982B2
    • 2013-10-08
    • US10657854
    • 2003-09-09
    • Kenneth M. MartinAdam C. BraunRyan D. Bruneau
    • Kenneth M. MartinAdam C. BraunRyan D. Bruneau
    • G09G5/08
    • A63F13/22A63F13/06A63F13/21A63F13/285A63F2300/1037A63F2300/1043
    • Improvements in accurately sensing a user manipulandum of a force feedback device. A force feedback device, coupled to a host computer, includes an actuator for outputting forces on a manipulandum and a sensor for detecting a position of the manipulandum. In one feature, a raw sensor value representing manipulandum position is adjusted based on compliance between sensor and manipulandum, where the adjustment can be based on a compliance constant and an output force. In another feature, a range of motion of the manipulandum is dynamically calibrated from startup. One boundary value of an assigned initial range is set equal to a received sensor value if the sensor value is outside the initial range, and the other boundary value is adjusted to maintain the size of the initial range unless the other boundary value has already been sensed outside the initial range. In another feature, manipulandum position is accurately sensed by filtering raw sensor values for overshoot values occurring at limits to manipulandum motion and using the filtered value in the dynamic calibration. In another feature, sensing inaccuracies caused by compliance in the device are decreased by normalizing a raw sensor value to a normalized range of motion that includes a saturation zone at each end of the range that adjusts sensor values over a saturation level to the saturation level.
    • 精确感测用户操纵力反馈装置的改进。 耦合到主计算机的力反馈装置包括用于在操纵上输出力的致动器和用于检测操纵的位置的传感器。 在一个特征中,基于传感器和操纵之间的顺应度来调整表示操纵位置的原始传感器值,其中调整可以基于顺从性常数和输出力。 在另一个特征中,操作的运动范围从启动动态校准。 如果传感器值在初始范围之外,则分配的初始范围的一个边界值被设置为等于接收到的传感器值,并且另一边界值被调整以维持初始范围的大小,除非已经感测到另一个边界值 在初始范围之外。 在另一个特征中,通过过滤原始传感器值以便在操纵力运动的限制下发生的过冲值并且使用动态校准中的滤波值来精确地感测到操纵性位置。 在另一个特征中,通过将原始传感器值归一化为归一化的运动范围来降低感测由装置中的顺应性引起的不准确度,该归一化运动范围包括在将饱和电平上的传感器值调整到饱和度的范围的每个端点处的饱和区域。
    • 2. 发明授权
    • Position sensing methods for interface devices
    • 接口设备的位置检测方法
    • US06704002B1
    • 2004-03-09
    • US09571397
    • 2000-05-15
    • Kenneth M. MartinAdam C. BraunRyan D. Bruneau
    • Kenneth M. MartinAdam C. BraunRyan D. Bruneau
    • G09G508
    • A63F13/22A63F13/06A63F13/21A63F13/285A63F2300/1037A63F2300/1043
    • Improvements in accurately sensing a user manipulandum of a force feedback device. A force feedback device, coupled to a host computer, includes an actuator for outputting forces on a manipulandum and a sensor for detecting a position of the manipulandum. In one feature, a raw sensor value representing manipulandum position is adjusted based on compliance between sensor and manipulandum, where the adjustment can be based on a compliance constant and an output force. In another feature, a range of motion of the manipulandum is dynamically calibrated from startup. One boundary value of an assigned initial range is set equal to a received sensor value if the sensor value is outside the initial range, and the other boundary value is adjusted to maintain the size of the initial range unless the other boundary value has already been sensed outside the initial range. In another feature, manipulandum position is accurately sensed by filtering raw sensor values for overshoot values occurring at limits to manipulandum motion and using the filtered value in the dynamic calibration. In another feature, sensing inaccuracies caused by compliance in the device are decreased by normalizing a raw sensor value to a normalized range of motion that includes a saturation zone at each end of the range that adjusts sensor values over a saturation level to the saturation level.
    • 精确感测用户操纵力反馈装置的改进。 耦合到主计算机的力反馈装置包括用于在操纵上输出力的致动器和用于检测操纵的位置的传感器。 在一个特征中,基于传感器和操纵之间的顺应度来调整表示操纵位置的原始传感器值,其中调整可以基于顺从性常数和输出力。 在另一个特征中,操作的运动范围从启动动态校准。 如果传感器值在初始范围之外,则分配的初始范围的一个边界值被设置为等于接收到的传感器值,并且另一边界值被调整以维持初始范围的大小,除非已经感测到另一个边界值 在初始范围之外。 在另一个特征中,通过过滤原始传感器值以便在操纵力运动的限制下发生的过冲值并且使用动态校准中的滤波值来精确地感测到操纵性位置。 在另一个特征中,通过将原始传感器值归一化为归一化的运动范围来降低感测由装置中的顺应性引起的不准确度,该归一化运动范围包括在将饱和电平上的传感器值调整到饱和度的范围的每个端点处的饱和区域。
    • 3. 发明授权
    • Position sensing for force feedback devices
    • 力反馈装置的位置检测
    • US6067077A
    • 2000-05-23
    • US138309
    • 1998-08-21
    • Kenneth M. MartinAdam C. BraunRyan D. Bruneau
    • Kenneth M. MartinAdam C. BraunRyan D. Bruneau
    • A63F9/24B25J13/00F16D31/02G06F3/033G06F19/00G09G5/00G09G5/08
    • A63F13/22A63F13/06A63F13/21A63F13/285A63F2300/1037A63F2300/1043
    • Improvements in accurately sensing a user manipulandum of a force feedback device. A force feedback device, coupled to a host computer, includes an actuator for outputting forces on a manipulandum and a sensor for detecting a position of the manipulandum. In one feature, a raw sensor value representing manipulandum position is adjusted based on compliance between sensor and manipulandum, where the adjustment can be based on a compliance constant and an output force. In another feature, a range of motion of the manipulandum is dynamically calibrated from startup. One boundary value of an assigned initial range is set equal to a received sensor value if the sensor value is outside the initial range, and the other boundary value is adjusted to maintain the size of the initial range unless the other boundary value has already been sensed outside the initial range. In another feature, manipulandum position is accurately sensed by filtering raw sensor values for overshoot values occurring at limits to manipulandum motion and using the filtered value in the dynamic calibration. In another feature, sensing inaccuracies caused by compliance in the device are decreased by normalizing a raw sensor value to a normalized range of motion that includes a saturation zone at each end of the range that adjusts sensor values over a saturation level to the saturation level.
    • 精确感测用户操纵力反馈装置的改进。 耦合到主计算机的力反馈装置包括用于在操纵上输出力的致动器和用于检测操纵的位置的传感器。 在一个特征中,基于传感器和操纵之间的顺应度来调整表示操纵位置的原始传感器值,其中调整可以基于顺从性常数和输出力。 在另一个特征中,操作的运动范围从启动动态校准。 如果传感器值在初始范围之外,则分配的初始范围的一个边界值被设置为等于接收到的传感器值,并且另一边界值被调整以维持初始范围的大小,除非已经感测到另一个边界值 在初始范围之外。 在另一个特征中,通过过滤原始传感器值以便在操纵力运动的限制下发生的过冲值并且使用动态校准中的滤波值来精确地感测到操纵性位置。 在另一个特征中,通过将原始传感器值归一化为归一化的运动范围来降低感测由装置中的顺应性引起的不准确度,该归一化运动范围包括在将饱和电平上的传感器值调整到饱和度的范围的每个端点处的饱和区域。
    • 4. 发明授权
    • Mechanical and force transmission for force feedback devices
    • 力反馈装置的机械和力传递
    • US06400352B1
    • 2002-06-04
    • US09138304
    • 1998-08-21
    • Ryan D. BruneauKenneth M. MartinLouis B. RosenbergDavid F. MooreBruce M. Schena
    • Ryan D. BruneauKenneth M. MartinLouis B. RosenbergDavid F. MooreBruce M. Schena
    • G09G500
    • G06F3/016A61B90/50A63F13/285A63F2300/1037G05G9/047G05G9/04737G05G2009/0474G05G2009/04766G06F3/03545G06F3/0383G06F2203/015G09B9/28G09B23/28
    • A force feedback interface device includes improvements in a mechanical linkage and drive mechanism. The force feedback device is coupled to a host computer and includes a user manipulatable object graspable by a user, at least one actuator that outputs a force on the user object, and a sensor for sensing motion of the user object. A linkage mechanism provides the user object with degrees of freedom and includes five members rotatably coupled to each other. The linkage mechanism supports the bearings of the device with protrusions rotatably coupled to central members of the linkage. The drive mechanism is preferably a belt drive that includes an idler positioned adjacent to a drive pulley and which impedes radial displacement of a belt away from the drive pulley, and thus impedes losing positive engagement of the belt, without preloading the belt. The idler can be a passive idler that does not contact the belt during operation and/or an active idler that continuously contacts the belt. Some or all portions of the linkage mechanism and the drive mechanism are preferably symmetrical, allowing low cost manufacture of the device.
    • 力反馈接口装置包括机械联动和驱动机构的改进。 力反馈装置耦合到主计算机,并且包括用户可握持的用户可操纵的对象,在用户对象上输出力的至少一个致动器和用于感测用户对象的运动的传感器。 连动机构向使用者物体提供自由度,并且包括彼此可旋转地联接的五个构件。 连杆机构支撑具有可旋转地联接到连杆的中心构件的突起的装置的轴承。 驱动机构优选地是带驱动器,其包括邻近驱动皮带轮定位的惰轮,并且阻止皮带远离驱动皮带轮的径向位移,并且因此阻止皮带的正接合而不预加载皮带。 惰轮可以是在操作期间不接触皮带的被动惰轮和/或连续接触皮带的活动惰轮。 联动机构和驱动机构的一些或全部部分优选是对称的,允许低成本地制造装置。