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    • 3. 发明授权
    • Automated analysis of a cardiac signal based on dynamical characteristics of the cardiac signal
    • 基于心脏信号的动力学特征自动分析心脏信号
    • US07729753B2
    • 2010-06-01
    • US11376603
    • 2006-03-14
    • Michael KremliovskyLev Korzinov
    • Michael KremliovskyLev Korzinov
    • A61B5/046
    • A61B5/0452A61B5/046A61B5/7239
    • Systems and techniques relating to locating cardiac wave forms in a cardiac signal, and to detecting a physiological condition, such as ventricular fibrillation. In general, in one aspect, a machine-implemented method includes obtaining a sensed cardiac signal of an organism, the sensed cardiac signal comprising a time series x(t); applying a Hilbert (H) transform to the time series x(t) to obtain H(x(t)), wherein x(t) and H(x(t)) together forming a partial state space trajectory; determining a speed of trajectory, for the sensed cardiac signal, from the partial state space trajectory; and identifying physiological information concerning the organism based on a combination of first and second signal elements, the first signal element including a phase property or an amplitude property of the speed of trajectory, and the second signal element including an amplitude property of the partial state space trajectory.
    • 涉及将心脏波形定位在心脏信号中以及检测诸如心室颤动之类的生理状态的系统和技术。 通常,在一个方面,机器实现的方法包括获得生物体的感测的心脏信号,所感测的心脏信号包括时间序列x(t); 将希尔伯特(H)变换应用于时间序列x(t)以获得H(x(t)),其中x(t)和H(x(t))一起形成部分状态空间轨迹; 从所述部分状态空间轨迹确定所感测的心脏信号的轨迹速度; 以及基于第一和第二信号元素的组合识别关于生物体的生理信息,所述第一信号元素包括轨迹速度的相位特性或振幅特性,并且所述第二信号元素包括部分状态空间的振幅特性 弹道。
    • 8. 发明申请
    • Automated analysis of a cardiac signal based on dynamical characteristics of the cardiac signal
    • 基于心脏信号的动力学特征自动分析心脏信号
    • US20070219453A1
    • 2007-09-20
    • US11376603
    • 2006-03-14
    • Michael KremliovskyLev Korzinov
    • Michael KremliovskyLev Korzinov
    • A61B5/04
    • A61B5/0452A61B5/046A61B5/7239
    • Systems and techniques relating to locating cardiac wave forms in a cardiac signal, and to detecting a physiological condition, such as ventricular fibrillation. In general, in one aspect, a machine-implemented method includes obtaining a sensed cardiac signal of an organism, the sensed cardiac signal comprising a time series x(t); applying a Hilbert (H) transform to the time series x(t) to obtain H(x(t)), wherein x(t) and H(x(t)) together forming a partial state space trajectory; determining a speed of trajectory, for the sensed cardiac signal, from the partial state space trajectory; and identifying physiological information concerning the organism based on a combination of first and second signal elements, the first signal element including a phase property or an amplitude property of the speed of trajectory, and the second signal element including an amplitude property of the partial state space trajectory.
    • 涉及将心脏波形定位在心脏信号中以及检测诸如心室颤动之类的生理状态的系统和技术。 通常,在一个方面,机器实现的方法包括获得生物体的感测的心脏信号,所感测的心脏信号包括时间序列x(t); 将希尔伯特(H)变换应用于时间序列x(t)以获得H(x(t)),其中x(t)和H(x(t))一起形成部分状态空间轨迹; 从所述部分状态空间轨迹确定所感测的心脏信号的轨迹速度; 以及基于第一和第二信号元素的组合识别关于生物体的生理信息,所述第一信号元素包括轨迹速度的相位特性或振幅特性,并且所述第二信号元素包括部分状态空间的振幅特性 弹道。