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    • 5. 发明授权
    • System and method for controlling haptic devices having multiple operational modes
    • 用于控制具有多种操作模式的触觉装置的系统和方法
    • US08427286B2
    • 2013-04-23
    • US12818618
    • 2010-06-18
    • Danny A. GrantKollin M. TierlingJuan Manuel Cruz-HernandezAlex S. Goldenberg
    • Danny A. GrantKollin M. TierlingJuan Manuel Cruz-HernandezAlex S. Goldenberg
    • G08B6/00
    • G08B6/00G06F3/016G06F2203/015H04M19/04
    • A haptic device having a plurality of operational modes, including a first operational mode and a second operational mode is provided. The first operational mode is associated with a frequency range. The second operational mode is associated with a frequency range that is different from the frequency range of the first operational mode. A controller is coupled to the haptic device, and is configured to send the haptic device a plurality of control schemes. Each control scheme is uniquely associated with an operational mode from the plurality of operational modes. Another embodiment provides a method that includes providing power to a haptic device configured to cause the haptic device to provide a haptic sensation above a pre-determined sensation threshold. A voltage pulse that is configured to change the haptic sensation output by the haptic device by a pre-determined amount within a pre-determined time period is also applied to the haptic device.
    • 提供具有多个操作模式的触觉装置,包括第一操作模式和第二操作模式。 第一个操作模式与频率范围相关联。 第二操作模式与不同于第一操作模式的频率范围的频率范围相关联。 控制器耦合到触觉设备,并且被配置为向触觉设备发送多个控制方案。 每个控制方案与来自多个操作模式的操作模式唯一地相关联。 另一个实施例提供了一种方法,其包括向触觉装置提供功率,该触觉装置被配置成使触觉装置提供高于预定感觉阈值的触觉感觉。 被配置为在预定时间段内将由触觉装置输出的触觉感觉改变预定量的电压脉冲也被应用于触觉装置。
    • 9. 发明授权
    • Method and apparatus for compensating for position slip in interface devices
    • 用于补偿接口装置中位置滑移的方法和装置
    • US07447604B2
    • 2008-11-04
    • US10995586
    • 2004-11-23
    • Adam C. BraunKollin M. TierlingKenneth M. MartinBruce M. Schena
    • Adam C. BraunKollin M. TierlingKenneth M. MartinBruce M. Schena
    • G06F19/00
    • G06F3/016A63F2300/1018A63F2300/1037
    • Method and apparatus for compensating for position slip in interface devices that may occur between a manipulandum and a sensor of the device due to a mechanical transmission. A device position delta is determined from a sensed position of a manipulandum of an interface device. It is determined if position slip has occurred caused by a change in position of the manipulandum that was not sensed by a sensor of the interface device, typically caused by a mechanical transmission between sensor and manipulandum. If position slip has occurred, an error in the sensed position caused by the position slip is corrected by adjusting the sensed position to take into account the position slip. The adjusted position delta is used as the position of the manipulandum and the display of objects controlled by the interface device are accordingly compensated.
    • 用于补偿由于机械传动而可能发生在装置的操纵和传感器之间的界面装置中的位置滑移的方法和装置。 从接口设备的操作的感测位置确定设备位置增量。 通过由传感器和操纵之间的机械传动引起的接口装置的传感器没有感测到的操作位置的变化,确定是否发生位置滑移。 如果发生位置滑移,则通过调整感测位置来考虑位置滑移来校正由位置滑移引起的感测位置的误差。 调整后的位置增量被用作操纵的位置,相应地补偿由接口装置控制的物体的显示。
    • 10. 发明授权
    • Actuator control providing linear and continuous force output
    • 执行器控制提供线性和连续的力输出
    • US06762745B1
    • 2004-07-13
    • US09565788
    • 2000-05-05
    • Adam C. BraunKollin M. TierlingBruce M. Schena
    • Adam C. BraunKollin M. TierlingBruce M. Schena
    • G09G500
    • G06F3/016G06F3/038G06F3/0383
    • Methods and apparatus for controlling an actuator to provide linear and continuous force output to a user of a force feedback device. To provide continuous and smooth force output in a zero crossover region of operation, two drive signals are used, each causing current to flow in a different direction in the actuator. When a desired output force is in the crossover region, the two drive signals are alternated to cause the output force to quickly switch directions. When the desired force is outside the crossover region, only one drive signal is used to cause output force in one direction. To compensate for a nonlinear output of the actuator, a desired command current is correlated with an approximated point of a characterization curve of the actuator, where the curve includes points determined in a previously performed actuator characterization. The approximated point is determined between two successive points using a linear approximation, and a drive signal duty cycle is determined from the approximated point. Other features can be implemented to compensate for power supply voltage variation, back EMF effect, and temperature.
    • 用于控制致动器以向力反馈装置的使用者提供线性和连续的力输出的方法和装置。 为了在零交叉操作区域中提供连续且平稳的力输出,使用两个驱动信号,每个驱动信号使得电流在致动器中以不同的方向流动。 当期望的输出力在交叉区域中时,两个驱动信号交替以使输出力快速切换方向。 当所需的力在交叉区域之外时,仅使用一个驱动信号来在一个方向上产生输出力。 为了补偿致动器的非线性输出,期望的指令电流与致动器的表征曲线的近似点相关,其中曲线包括在先前执行的致动器特性中确定的点。 使用线性近似在两个连续点之间确定近似点,并且从近似点确定驱动信号占空比。 可以实现其他功能来补偿电源电压变化,反电动势效应和温度。