EM sensor and mobile device including the same

    公开(公告)号:US10909467B2

    公开(公告)日:2021-02-02

    申请号:US16243854

    申请日:2019-01-09

    Abstract: An electromagnetic (EM) sensor includes a front-end module, a memory, and a microcontroller unit. The front-end module generates an electromagnetic signal using externally introduced electromagnetic waves. The memory stores a first reference signal and a second reference signal generated from multiple probability models required to recognize the electromagnetic signal. The microcontroller unit compares the electromagnetic signal with the first reference signal and the second reference signal, to determine whether the electromagnetic signal is a valid signal.

    Electrocardiogram sensor and method of processing signals using the same
    2.
    发明授权
    Electrocardiogram sensor and method of processing signals using the same 有权
    心电图传感器及使用其的处理信号的方法

    公开(公告)号:US09326732B2

    公开(公告)日:2016-05-03

    申请号:US14598918

    申请日:2015-01-16

    Abstract: An electrocardiogram (ECG) sensor includes an analog front end device configured to remove a DC offset in a first ECG signal received from a measuring electrode, and adjust a gain amplification value based on the first ECG signal. The analog front end device is configured to output an adjusted first ECG signal, the adjusted first ECG signal being based on the adjusted gain amplification value and the removed DC offset in the first ECG signal. The ECG sensor includes a digital signal processor configured to analyze and process the adjusted first ECG signal based on an algorithm and to output information. The analog front end device is configured to remove the DC offset in the first ECG signal during a first period, and remove a DC offset in a second ECG signal and simultaneously adjust a gain amplification value for the second ECG signal during a second period.

    Abstract translation: 心电图(ECG)传感器包括被配置为去除从测量电极接收的第一ECG信号中的DC偏移的模拟前端装置,并且基于第一ECG信号调整增益放大值。 模拟前端装置被配置为输出经调整的第一ECG信号,所调整的第一ECG信号基于经调整的增益放大值和第一ECG信号中去除的DC偏移。 ECG传感器包括数字信号处理器,其被配置为基于算法分析和处理经调整的第一ECG信号并输出​​信息。 模拟前端设备被配置为在第一时段期间去除第一ECG信号中的DC偏移,并且移除第二ECG信号中的DC偏移,并且在第二周期期间同时调整第二ECG信号的增益放大值。

    Electrocardiogram (ECG) sensor and method of operating the same
    4.
    发明授权
    Electrocardiogram (ECG) sensor and method of operating the same 有权
    心电图(ECG)传感器及其操作方法

    公开(公告)号:US09554753B2

    公开(公告)日:2017-01-31

    申请号:US14590258

    申请日:2015-01-06

    Abstract: An electrocardiogram (ECG) sensor includes a motion artifact detector configured to detect a motion artifact component from a first channel signal of a first channel and a second channel signal of a second channel using a channel offset coefficient. The channel offset coefficient indicates a difference between the first channel signal and the second channel signal. The ECG sensor includes an ECG filter configured to generate an ECG signal by performing a least mean square (LMS) filtering operation on the first channel signal to remove the motion artifact component.

    Abstract translation: 心电图(ECG)传感器包括运动假象检测器,其被配置为使用信道偏移系数从第一信道的第一信道信号和第二信道的第二信道信号检测运动伪影分量。 信道偏移系数表示第一信道信号和第二信道信号之间的差。 ECG传感器包括被配置为通过对第一信道信号执行最小均方(LMS)滤波操作以消除运动伪影分量来产生ECG信号的ECG滤波器。

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