EKG based heart rate monitor with digital filter and enhancement signal
processor
    21.
    发明授权
    EKG based heart rate monitor with digital filter and enhancement signal processor 失效
    基于EKG的心率监测器,带数字滤波器和增强信号处理器

    公开(公告)号:US5876350A

    公开(公告)日:1999-03-02

    申请号:US745928

    申请日:1996-11-07

    Abstract: A convenient low-cost heart rate monitor. In one embodiment, a digital filter structure includes a low pass filter having a notch at 60 Hz and a bandpass filter which amplifies signals in a frequency range from 10-40 Hz and has a notch at 60 Hz. This digital filter has a recursive structure and uses integer coefficients to simplify and speed up the calculations. A four bit microcontroller may implement the digital filter. The output of the digital filter is subject to enhancement signal processing to emphasize QRS complexes indicative of human heartbeats.

    Abstract translation: 方便的低成本心率监测仪。 在一个实施例中,数字滤波器结构包括具有60Hz的陷波的低通滤波器和放大在10-40Hz的频率范围内且具有60Hz的陷波的信号的带通滤波器。 该数字滤波器具有递归结构,并使用整数系数来简化和加速计算。 四位微控制器可以实现数字滤波器。 数字滤波器的输出经过增强信号处理,以强调指示人心跳的QRS复合物。

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