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    Differential capacitive sensing system
    2.
    发明授权
    Differential capacitive sensing system 有权

    公开(公告)号：US11929744B2

    公开(公告)日：2024-03-12

    申请号：US16783291

    申请日：2020-02-06

    申请人： TEXAS INSTRUMENTS INCORPORATED

    发明人： Peter Spevak

    IPC分类号： G01L1/14 ,  G01D5/241 ,  G01R27/26 ,  H03K17/975

    CPC分类号： H03K17/975 ,  G01D5/241 ,  G01L1/144 ,  G01R27/2605

    摘要： An apparatus includes a moveable electrode which moves along an interstitial pathway defined by four fixed electrodes. The first and second fixed electrodes are separated by a first distance. The third and fourth fixed electrodes are separated by a second distance and adjacent to the first and second fixed electrodes, respectively. A capacitance sensing circuit coupled to the four fixed electrodes determines a first capacitance using the first and second fixed electrodes and a second capacitance using the third and fourth fixed electrodes. In some examples, the apparatus also comprises fifth and sixth fixed electrodes separated by a third distance and orthogonal to the first and second fixed electrodes and seventh and eighth fixed electrodes separated by a fourth distance and orthogonal to the third and fourth fixed electrodes. The fifth and seventh fixed electrodes are adjacent, and the sixth and eighth fixed electrodes are adjacent.

    ELECTRIC FIELD TYPE TIME-GRATING ANGULAR DISPLACEMENT SENSORS
    7.
    发明申请
    ELECTRIC FIELD TYPE TIME-GRATING ANGULAR DISPLACEMENT SENSORS 审中-公开
    电场型时间角位移传感器

    公开(公告)号：US20170003146A1

    公开(公告)日：2017-01-05

    申请号：US15228810

    申请日：2016-08-04

    申请人： Chongqing University of Technology

    发明人： Xiaokang LIU ,  Donglin PENG ,  Zhicheng YU

    IPC分类号： G01D5/241 ,  G01D5/243 ,  G01B7/30

    CPC分类号： G01D5/241 ,  G01B7/30 ,  G01D5/243

    摘要： An electric field type time-grating angular displacement sensor, including a rotor and a stator. The rotor includes m rotor electrodes. The rotor electrodes cover a circle on a surface of a rotor body with equal space. The stator includes 4m stator electrodes. The stator electrodes cover a circle on a surface of a stator body with equal space.

    摘要翻译： 一种电场型时间光栅角位移传感器，包括转子和定子。 转子包括m个转子电极。 转子电极在转子体的表面上以相等的空间覆盖一圈。 定子包括4m定子电极。 定子电极在等间距的定子体的表面上覆盖一圈。

    METHOD OF DETECTING USER INPUT IN A 3D SPACE AND A 3D INPUT SYSTEM EMPLOYING SAME
    9.
    发明申请
    METHOD OF DETECTING USER INPUT IN A 3D SPACE AND A 3D INPUT SYSTEM EMPLOYING SAME 审中-公开
    检测3D空间中的用户输入的方法和使用它的3D输入系统

    公开(公告)号：US20160132111A1

    公开(公告)日：2016-05-12

    申请号：US14939388

    申请日：2015-11-12

    申请人： HELIO TECHNOLOGY INC.

    发明人： Matthew William LOWE ,  Vahid DEHGHANIAN

    IPC分类号： G06F3/01 ,  G06N7/00

    CPC分类号： H03M1/285 ,  G01D5/16 ,  G01D5/241 ,  G06F3/014 ,  G06F3/016 ,  G06F3/04886 ,  G06N7/005 ,  H03M7/3082 ,  H04W4/70

    摘要： A 3D input system and an angle encoder are disclosed. The 3D input system comprises a computing device and one or more position sensing gloves. The position sensing glove comprises a plurality of angle encoders each installed thereon at a location about a finger joint. An inertial measurement unit (IMU) is installed on the glove. A firmware uses data from the angle encoders and IMU to calculate fingertip positions in a 3D space. The firmware generates keystrokes on a virtual keyboard based on the fingertip positions. The angle encoder comprises a first and a second components rotatable with respect to each other, and an encoder pattern comprising codewords for indicating the angle between the first and second components. The encoder pattern comprises a set of base encoder channels coded with a conventional Gray code, and a set of Booster channels for improving the resolution of angle measurement.

    摘要翻译： 公开了3D输入系统和角度编码器。 3D输入系统包括计算设备和一个或多个位置感测手套。 位置检测手套包括多个角度编码器，每个角度编码器安装在围绕手指关节的位置处。 惯性测量单元（IMU）安装在手套上。 固件使用来自角度编码器和IMU的数据来计算3D空间中的指尖位置。 固件根据指尖位置在虚拟键盘上产生击键。 角度编码器包括相对于彼此可旋转的第一和第二部件，以及包括用于指示第一和第二部件之间的角度的代码字的编码器图案。 编码器图案包括用常规格雷码编码的一组基本编码器通道，以及一组用于提高角度测量分辨率的助推器通道。