Dynamic shield electrode of a stylus
    21.
    发明授权
    Dynamic shield electrode of a stylus 有权
    触针的动态屏蔽电极

    公开(公告)号:US08878823B1

    公开(公告)日:2014-11-04

    申请号:US13431425

    申请日:2012-03-27

    摘要: An apparatus comprising a stylus with a dynamically switch tip shield is provided. The apparatus includes an elongated stylus housing having an end, a conductive tip disposed at least partially inside the stylus housing and extending from the end, a force sensor coupled to the conductive tip and configured to detect contact between the conductive tip and an object, a tip shield coupled with the stylus housing and extending from the end, and a switch coupled to the tip shield and the conductive tip.

    摘要翻译: 提供一种包括具有动态切换尖端屏蔽的触笔的装置。 该装置包括细长的触针外壳,其具有端部,至少部分地设置在触针外壳内并且从端部延伸的导电尖端,连接到导电尖端并被配置为检测导电尖端和物体之间的接触的力传感器, 与触针壳体耦合并从端部延伸的尖端护罩,以及耦合到尖端护罩和导电尖端的开关。

    Capacitance to code converter with sigma-delta modulator
    22.
    发明授权
    Capacitance to code converter with sigma-delta modulator 有权
    具有Σ-Δ调制器的电容到码转换器

    公开(公告)号:US08547114B2

    公开(公告)日:2013-10-01

    申请号:US11600255

    申请日:2006-11-14

    申请人: Viktor Kremin

    发明人: Viktor Kremin

    IPC分类号: G01R27/26

    摘要: An apparatus and method for converting a capacitance measured on a sensor element to a digital code. The apparatus may include a switching capacitor as a sensor element of a sensing device, and a sigma-delta modulator coupled to the sensor element to convert a capacitance measured on the sensor element to a digital code. The switching capacitor is in a feedback loop of the sigma-delta modulator. The method may include measuring a capacitance on a sensor element of a sensing device using a sigma-delta modulator, and converting the capacitance measured on the sensor element to a digital code.

    摘要翻译: 一种用于将在传感器元件上测量的电容转换为数字码的装置和方法。 该装置可以包括作为感测装置的传感器元件的开关电容器和耦合到传感器元件的Σ-Δ调制器,以将在传感器元件上测量的电容转换为数字代码。 开关电容器处于Σ-Δ调制器的反馈回路中。 该方法可以包括使用Σ-Δ调制器测量感测装置的传感器元件上的电容,以及将在传感器元件上测量的电容转换为数字代码。

    Discerning between substances
    24.
    发明授权
    Discerning between substances 有权
    辨别物质

    公开(公告)号:US08245579B2

    公开(公告)日:2012-08-21

    申请号:US12262640

    申请日:2008-10-31

    IPC分类号: G01B7/16

    CPC分类号: G01D5/2405 H03K17/962

    摘要: A method and apparatus to detect the presence of a material at a sensing device and to determine whether the material is a first material having a first material property or a second material having a second material property.

    摘要翻译: 一种在感测装置处检测材料的存在并确定材料是否是具有第一材料性质的第一材料或具有第二材料性质的第二材料的方法和装置。

    Circuit for forming phase shifted signals for three phase BLDC motors
    25.
    发明授权
    Circuit for forming phase shifted signals for three phase BLDC motors 有权
    用于三相BLDC电机形成相移信号的电路

    公开(公告)号:US08217609B1

    公开(公告)日:2012-07-10

    申请号:US12723070

    申请日:2010-03-12

    IPC分类号: H02K23/00

    CPC分类号: H02P6/182 H02P2207/05

    摘要: Disclosed is a controller circuit, comprising a plurality of sense inputs, an instrumentation amplifier block having inputs coupled to the plurality of sense inputs, a filter block coupled to the instrumentation amplifier block, a sum function coupled to the filter block, and a crossing detector block coupled to the filter block and the sum function. A method of controlling motor signals is further described.

    摘要翻译: 公开了一种包括多个感测输入的控制器电路,具有耦合到多个感测输入的输入的仪表放大器模块,耦合到仪表放大器模块的滤波器模块,耦合到滤波器模块的和功能和交叉检测器 耦合到滤波器块和和函数的块。 进一步描述控制电动机信号的方法。

    Capacitive field sensor with sigma-delta modulator
    26.
    发明授权
    Capacitive field sensor with sigma-delta modulator 有权
    具有Σ-Δ调制器的电容场传感器

    公开(公告)号:US08089289B1

    公开(公告)日:2012-01-03

    申请号:US12167100

    申请日:2008-07-02

    IPC分类号: G01R27/26

    摘要: A capacitive sensor includes a switching capacitor circuit, a comparator, and a charge dissipation circuit. The switching capacitor circuit reciprocally couples a sensing capacitor in series with a modulation capacitor during a first switching phase and discharges the sensing capacitor during a second switching phase. The comparator is coupled to compare a voltage potential on the modulation capacitor to a reference and to generate a modulation signal in response. The charge dissipation circuit is coupled to the modulation capacitor to selectively discharge the modulation capacitor in response to the modulation signal.

    摘要翻译: 电容传感器包括开关电容器电路,比较器和电荷耗散电路。 开关电容器电路在第一开关阶段期间将感测电容器与调制电容器串联耦合,并且在第二开关阶段期间对感测电容器进行放电。 比较器被耦合以将调制电容器上的电压电位与参考电压进行比较,并且响应地产生调制信号。 电荷耗散电路耦合到调制电容器以响应于调制信号选择性地放电调制电容器。

    Circuit for forming phase shifted signals for three phase BLDC motor control
    27.
    发明授权
    Circuit for forming phase shifted signals for three phase BLDC motor control 有权
    用于形成用于三相BLDC电动机控制的相移信号的电路

    公开(公告)号:US07679302B1

    公开(公告)日:2010-03-16

    申请号:US11480036

    申请日:2006-06-29

    IPC分类号: H02P6/18

    CPC分类号: H02P6/182 H02P2207/05

    摘要: Disclosed is a controller circuit, comprising a plurality of sense inputs, an instrumentation amplifier block having inputs coupled to the plurality of sense inputs, a filter block coupled to the instrumentation amplifier block, a sum function coupled to the filter block, and a crossing detector block coupled to the filter block and the sum function. A method of controlling motor signals is further described.

    摘要翻译: 公开了一种包括多个感测输入的控制器电路,具有耦合到多个感测输入的输入的仪表放大器模块,耦合到仪表放大器模块的滤波器模块,耦合到滤波器模块的和功能和交叉检测器 耦合到滤波器块和和函数的块。 进一步描述控制电动机信号的方法。

    Sense position prediction for touch sensing methods, circuits and systems
    28.
    发明授权
    Sense position prediction for touch sensing methods, circuits and systems 有权
    触觉检测方法,电路和系统的感测位置预测

    公开(公告)号:US09218094B1

    公开(公告)日:2015-12-22

    申请号:US13605092

    申请日:2012-09-06

    IPC分类号: G06F3/045 G06F3/044

    摘要: A method can include determining multiple sensed positions of an object path in a touch sense region; generating at least a first predicted position from the sensed positions; and filtering a sense position, including associating the sense position with the object path if it is within a first proximity to at least the first predicted position, and not associating the sense position with the object path if it is outside of at least the first proximity from the first predicted position.

    摘要翻译: 方法可以包括确定触摸感测区域中的对象路径的多个感测位置; 从感测到的位置产生至少第一预测位置; 以及对感测位置进行滤波,包括如果所述感测位置与所述物体路径处于至少所述第一预测位置的第一接近度内,则将所述感测位置与所述感测位置相关联,并且如果所述感测位置与所述物体路径至少在所述第一接近度之外 从第一预测位置。

    Attenuator circuit of a capacitance-sensing circuit
    29.
    发明授权
    Attenuator circuit of a capacitance-sensing circuit 有权
    电容感应电路的衰减器电路

    公开(公告)号:US08610443B1

    公开(公告)日:2013-12-17

    申请号:US13895115

    申请日:2013-05-15

    IPC分类号: G01R27/26

    摘要: Apparatuses and methods of input attenuator circuits are described. One sensing circuit includes an attenuator circuit to receive a signal from an electrode of a sense array. The attenuator circuit is configured to attenuate input current of the signal. The attenuator circuit includes an attenuation matrix including an input terminal to receive the signal and multiple resistors. The attenuation matrix is configured to split the input current into an output current of the attenuation signal on a first output terminal and a second output current on a second output terminal. The attenuation matrix is to output the attenuated signal on the first output terminal to an integrator of the sensing circuit. The attenuator circuit also includes a buffer coupled between the attenuation matrix and the integrator. The buffer is configured to maintain a substantially same voltage at the first output terminal and the second output terminal.

    摘要翻译: 描述输入衰减器电路的装置和方法。 一个感测电路包括用于从感测阵列的电极接收信号的衰减器电路。 衰减器电路经配置以衰减信号的输入电流。 衰减器电路包括衰减矩阵,该衰减矩阵包括用于接收信号的输入端和多个电阻。 衰减矩阵被配置为将输入电流分为第一输出端上的衰减信号的输出电流和第二输出端上的第二输出电流。 衰减矩阵将第一输出端上的衰减信号输出到感测电路的积分器。 衰减器电路还包括耦合在衰减矩阵和积分器之间的缓冲器。 缓冲器被配置为在第一输出端子和第二输出端子处保持基本相同的电压。

    STYLUS TO HOST SYNCHRONIZATION
    30.
    发明申请
    STYLUS TO HOST SYNCHRONIZATION 审中-公开
    STYLUS TO主机同步

    公开(公告)号:US20130207926A1

    公开(公告)日:2013-08-15

    申请号:US13431832

    申请日:2012-03-27

    IPC分类号: G06F3/033 G06F3/044

    摘要: A system and method for synchronizing a stylus to a capacitive sense array. The system including a capacitive sense array which includes a plurality of electrodes. A synchronization signal is transmitted to the stylus using the plurality of electrodes. The synchronization signal is transmitted to the stylus by capacitively coupling the stylus to the capacitive sense array.

    摘要翻译: 一种用于将触笔同步到电容式感测阵列的系统和方法。 该系统包括包括多个电极的电容性感测阵列。 使用多个电极将同步信号发送到触控笔。 通过将触针电容耦合到电容性感测阵列将同步信号传输到触控笔。