Real time QRS detection using adaptive threshold
    1.
    发明授权
    Real time QRS detection using adaptive threshold 有权
    使用自适应阈值实时QRS检测

    公开(公告)号:US08755877B2

    公开(公告)日:2014-06-17

    申请号:US13434725

    申请日:2012-03-29

    申请人: Vasile Zoica

    发明人: Vasile Zoica

    IPC分类号: A61B5/0456

    摘要: A mobile system for analyzing ECG data includes an analog front end module coupled to a mobile consumer device. The analog front end module is configured to collect ECG data from one or more leads and is operable to convert the analog ECG data to digital ECG data. The mobile consumer device is coupled to receive the digital ECG data, and is configured to perform QRS detection using a filter whose cutoff frequency is adapted to noise level in real time. The ECG signal is amplified non-linearly and three windowed threshold signals (D, E, J) are derived. The cutoff frequency for the QRS detection is dynamically selected as a function of the threshold signals. A sample in the amplified signal is identified to be a heart beat point only when the sample value is equal to the first threshold signal and greater than the filtered threshold signal.

    摘要翻译: 用于分析ECG数据的移动系统包括耦合到移动消费者设备的模拟前端模块。 模拟前端模块被配置为从一个或多个引线收集ECG数据,并且可操作以将模拟ECG数据转换为数字ECG数据。 移动消费者设备被耦合以接收数字ECG数据,并且被配置为使用截止频率实时地适应于噪声电平的滤波器来执行QRS检测。 ECG信号被非线性放大,导出三个窗口阈值信号(D,E,J)。 动态地选择QRS检测的截止频率作为阈值信号的函数。 仅当采样值等于第一阈值信号并且大于滤波后的阈值信号时,放大信号中的采样被识别为心跳点。

    Real Time QRS Duration Measurement in Electrocardiogram
    2.
    发明申请
    Real Time QRS Duration Measurement in Electrocardiogram 有权
    心电图实时QRS持续时间测量

    公开(公告)号:US20130338518A1

    公开(公告)日:2013-12-19

    申请号:US13548175

    申请日:2012-07-12

    申请人: Vasile Zoica

    发明人: Vasile Zoica

    IPC分类号: A61B5/0472 A61B5/0456

    摘要: ECG data may be processed in a mobile device by receiving a stream of filtered ECG data samples comprising PQRST pattern cycles. An R point of a PQRST pattern in the filtered ECG data is determined. A portion of samples is selected from the filtered ECG data surrounding the R point. QRS duration of the PQRST pattern is then determined by processing the selected portion of samples using an application program executed by the mobile device.

    摘要翻译: ECG数据可以通过接收包括PQRST模式周期的经滤波的ECG数据样本流在移动设备中进行处理。 确定滤波后的ECG数据中PQRST模式的R点。 从围绕R点的经滤波的ECG数据中选择一部分样本。 然后通过使用由移动设备执行的应用程序处理所选择的采样部分来确定PQRST模式的QRS持续时间。