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    CAPACITANCE TO CODE CONVERTER WITH SIGMA-DELTA MODULATOR
    33.
    发明申请
    CAPACITANCE TO CODE CONVERTER WITH SIGMA-DELTA MODULATOR 有权
    与SIGMA-DELTA调制器的转换器电容

    公开(公告)号：US20120043973A1

    公开(公告)日：2012-02-23

    申请号：US13049798

    申请日：2011-03-16

    申请人： Viktor Kremin

    发明人： Viktor Kremin

    IPC分类号： G01R27/26

    CPC分类号： G06F3/044 ,  G06F3/0416 ,  H03M11/02

    摘要： An apparatus and method of converting a capacitance measured on a sensor element to a digital value. The apparatus may include a switching capacitor as a sensor element, a modulation circuit coupled to the sensor element, and a switching circuit having a plurality of switches controlled by a variable-period clock. The modulation circuit is configured to measure a capacitance on the sense element and to convert the measured capacitance to a digital value.

    摘要翻译： 将在传感器元件上测量的电容转换为数字值的装置和方法。 该装置可以包括作为传感器元件的开关电容器，耦合到传感器元件的调制电路和具有由可变周期时钟控制的多个开关的开关电路。 调制电路被配置为测量感测元件上的电容并将测量的电容转换为数字值。

    Noise resistant capacitive sensor
    34.
    发明申请
    Noise resistant capacitive sensor 有权
    抗噪电容传感器

    公开(公告)号：US20090002206A1

    公开(公告)日：2009-01-01

    申请号：US11824249

    申请日：2007-06-29

    申请人： Viktor Kremin

    发明人： Viktor Kremin

    IPC分类号： H03K17/96

    CPC分类号： H03K17/962 ,  H03K17/16 ,  H03K2217/960725

    摘要： A switch capacitor unit for implementing a capacitive sensor includes a charging switch, a charge transfer switch, and a first switch. The charging switch is coupled between a first supply voltage and a circuit node to selectively couple a sensing capacitor to the first supply voltage through the circuit node. The charge transfer switch is coupled between the circuit node and a first terminal of a second capacitor to selectively couple the sensing capacitor through the circuit node to the second capacitor. The first switch is coupled between the circuit node and a second terminal of the second capacitor to selectively couple the second terminal to the sensing capacitor through the circuit node.

    摘要翻译： 用于实现电容式传感器的开关电容器单元包括充电开关，电荷转移开关和第一开关。 充电开关耦合在第一电源电压和电路节点之间，以通过电路节点选择性地将感测电容器耦合到第一电源电压。 电荷转移开关耦合在电路节点和第二电容器的第一端之间，以将检测电容器通过电路节点有选择地耦合到第二电容器。 第一开关耦合在电路节点和第二电容器的第二端子之间，以通过电路节点选择性地将第二端子耦合到感测电容器。

    Synchronization circuit and method of performing synchronization
    35.
    发明授权
    Synchronization circuit and method of performing synchronization 有权
    同步电路和执行同步的方法

    公开(公告)号：US07453230B1

    公开(公告)日：2008-11-18

    申请号：US11541128

    申请日：2006-09-29

    申请人： Viktor Kremin

    发明人： Viktor Kremin

    IPC分类号： G05B19/40

    CPC分类号： H02P8/22 ,  H02P8/34

    摘要： The circuit comprises a pulse width modulated (PWM) input signal, a resistor, an instrumentation amplifier, a filter and an analog to digital converter. The method of performing synchronization comprises sampling an analog signal and forming a digital data stream representing the signal, filtering the data stream to remove harmonics, measuring an approximate level of ripple in the data stream, detecting a change in the level of ripple, and based upon change in the level of ripple, determining if a stall has occurred.

    摘要翻译： 该电路包括脉宽调制（PWM）输入信号，电阻器，仪表放大器，滤波器和模数转换器。 执行同步的方法包括对模拟信号进行采样并形成表示信号的数字数据流，对数据流进行滤波以去除谐波，测量数据流中的大致纹波水平，检测纹波电平的变化，并且基于 在纹波水平发生变化时，确定是否发生档位。

    Capacitive panel scanning with reduced number of sensing circuits
    36.
    发明授权
    Capacitive panel scanning with reduced number of sensing circuits 有权

    公开(公告)号：US11320946B2

    公开(公告)日：2022-05-03

    申请号：US13247779

    申请日：2011-09-28

    申请人： Viktor Kremin ,  Roman Ogirko

    发明人： Viktor Kremin ,  Roman Ogirko

    IPC分类号： G06F3/044 ,  G06F3/041

    摘要： Embodiments described herein provide capacitive sensor devices and methods for operating capacitive sensor devices. A first number of electrodes on the capacitive sensor array is activated. A signal is received from each of the first number of electrodes with a second number of receiver circuits on a controller associated with the capacitive sensor array. The first number is greater than the second number. It is determined if an object is proximate the capacitive sensor array based on the signals received from the first number of electrodes.

    CAPACITANCE TO CODE CONVERTER WITH SIGMA-DELTA MODULATOR
    40.
    发明申请
    CAPACITANCE TO CODE CONVERTER WITH SIGMA-DELTA MODULATOR 有权
    与SIGMA-DELTA调制器的转换器电容

    公开(公告)号：US20130278447A1

    公开(公告)日：2013-10-24

    申请号：US13917528

    申请日：2013-06-13

    申请人： Viktor Kremin

    发明人： Viktor Kremin

    IPC分类号： H03M11/02

    CPC分类号： G06F3/044 ,  G06F3/0416 ,  H03M11/02

    摘要： An apparatus and method of converting a capacitance measured on a sensor element to a digital value. The apparatus may include a matrix-scanning device including drive lines and sense lines. A sense element is located at an intersection of one of the drive lines and one of the sense lines. The apparatus also includes a modulation circuit coupled to the drive lines and the sense lines, and a switching circuit having first switches controlled by a clock. The modulation circuit is configured to measure a mutual capacitance on the sense element and to convert the measured mutual capacitance to a first digital value. The modulation circuit is configured to measure a self-capacitance on at least one of the drive lines and to convert the measured self-capacitance to a second digital value.

    摘要翻译： 将在传感器元件上测量的电容转换为数字值的装置和方法。 该装置可以包括包括驱动线和感测线的矩阵扫描装置。 感测元件位于驱动线之一和感测线之一的交点处。 该装置还包括耦合到驱动线和感测线的调制电路，以及具有由时钟控制的第一开关的开关电路。 调制电路被配置为测量感测元件上的互电容并将所测量的互电容转换为第一数字值。 调制电路被配置为测量至少一个驱动线路上的自电容，并将所测量的自身电容转换为第二数字值。