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公开(公告)号:US5589854A
公开(公告)日:1996-12-31
申请号:US493547
申请日:1995-06-22
申请人: Ming-Chang Tsai
发明人: Ming-Chang Tsai
CPC分类号: A63F13/285 , A63F13/06 , G05G9/047 , G06F3/016 , G06F3/0338 , G06F3/0383 , A63F2300/1037 , G05G2009/04766 , G06F2203/015
摘要: A tactile feedback device is provided. The device includes a joystick assembly with a joystick handle and a pair of perpendicular yoke components installed below the joystick handle. Each yoke component has a driving motor installed for driving the joystick handle. The device also includes a force feedback controlling system used for producing the force of a simulated condition, and to provide a relative average current to the motors for obtaining a relative rotating speed. The joystick can thereby produce different displacements of the joystick handle at the same time, and the operator can feel the different reaction forces produced. The device includes an automatic reset function using a pair of sensors respectively installed on the yoke components. The joystick handle can be automatically reset to the zero position of each when the sensors are not aligned with respective light blocking members.
摘要翻译: 提供触觉反馈装置。 该装置包括具有操纵杆手柄的操纵杆组件和安装在操纵杆手柄下方的一对垂直轭部件。 每个轭组件具有安装用于驱动操纵杆手柄的驱动电机。 该装置还包括用于产生模拟状态的力的力反馈控制系统,并且向马达提供相对平均电流以获得相对转速。 操纵杆因此可以同时产生操纵杆手柄的不同位移,并且操作者可以感觉到产生的不同的反作用力。 该装置包括使用分别安装在轭部件上的一对传感器的自动复位功能。 当传感器不与相应的遮光构件对准时,操纵杆手柄可以自动复位到每个的零位置。
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公开(公告)号:US5414796A
公开(公告)日:1995-05-09
申请号:US4484
申请日:1993-01-14
申请人: Paul E. Jacobs , William R. Gardner , Chong U. Lee , Klein S. Gilhousen , S. Katherine Lam , Ming-Chang Tsai
发明人: Paul E. Jacobs , William R. Gardner , Chong U. Lee , Klein S. Gilhousen , S. Katherine Lam , Ming-Chang Tsai
IPC分类号: G10L19/00 , G10L20060101 , G10L11/02 , G10L19/02 , G10L19/04 , G10L19/06 , G10L19/12 , G10L19/14 , G10L21/02 , G10L21/04 , H03M7/30 , H03M7/36 , H04B1/66 , H04J3/16 , H04L1/00 , G10L3/02
CPC分类号: H04L1/0057 , G10L19/005 , G10L19/012 , G10L19/12 , G10L19/22 , G10L19/24 , G10L25/78 , H04B1/66 , H04J3/1688 , H04L1/0014 , H04L1/0017 , H04L1/0041 , H04L1/0046 , G10L2025/786
摘要: An apparatus and method for performing speech signal compression, by variable rate coding of frames of digitized speech samples. The level of speech activity for each frame of digitized speech samples is determined and an output data packet rate is selected from a set of rates based upon the determined level of frame speech activity. A lowest rate of the set of rates corresponds to a detected minimum level of speech activity, such as background noise or pauses in speech, while a highest rate corresponds to a detected maximum level of speech activity, such as active vocalization. Each frame is then coded according to a predetermined coding format for the selected rate wherein each rate has a corresponding number of bits representative of the coded frame. A data packet is provided for each coded frame with each output data packet of a bit rate corresponding to the selected rate.
摘要翻译: 一种用于通过数字化语音样本的帧的可变速率编码来执行语音信号压缩的装置和方法。 确定每个数字化语音样本帧的语音活动水平,并且基于所确定的帧语音活动水平从一组速率中选择输出数据分组速率。 一组速率的最低速率对应于检测到的语音活动的最低水平,例如背景噪声或语音中的停顿,而最高速率对应于检测到的语音活动的最大水平,例如主动发声。 然后根据所选择的速率的预定编码格式对每个帧进行编码,其中每个速率具有表示编码帧的相应位数。 为每个编码帧提供数据分组,每个输出数据分组的比特率对应于所选择的速率。
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