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    • 4. 发明授权
    • Sleep state estimation device and program product for providing a computer with a sleep state estimation function
    • 睡眠状态估计装置和程序产品,用于为计算机提供睡眠状态估计功能
    • US07150718B2
    • 2006-12-19
    • US10961679
    • 2004-10-12
    • Shima OkadaTakeshi MinamiuraHidetaka SakaiYasushi YamamotoYoshihisa Fujiwara
    • Shima OkadaTakeshi MinamiuraHidetaka SakaiYasushi YamamotoYoshihisa Fujiwara
    • A61B5/08
    • A61B5/6831A61B5/113A61B5/1135A61B5/4809A61B5/4812A61B2562/0261
    • An object of the present invention is to provide a sleep state estimation device capable of estimating a sleep state (deep sleep, light sleep) in real time with relative simplicity. Voltage variations resulting from human respiratory movement are measured for each given period to calculate from the measurement results positive voltage peak values and time intervals between adjacent peaks. The obtained peak values and peak intervals are used to calculate a mean peak interval value A, a coefficient of variation B based on dispersion of the peak intervals, and a coefficient of variation C based on the peak values. The sleep state in this period is estimated from the calculation results. More specifically, referring to FIG. 5, the sleep state is estimated as a “wakeful state” or a “hypnagogic state” by checking whether the mean value A is larger or smaller than a threshold a and whether the coefficient of variation C is larger or smaller than a threshold c (S105) whereas the sleep state is estimated as the “hypnagogic state”, “light sleep” or “deep sleep” by checking whether the coefficient of variation B is larger or smaller than a threshold b and whether the coefficient of variation C is larger or smaller than the threshold c (S109, S113, S116, S117).
    • 本发明的目的在于提供能够相对简单地实时估计睡眠状态(深度睡眠,睡眠睡眠)的睡眠状态估计装置。 对于每个给定的周期,测量由人呼吸运动引起的电压变化,以从测量结果计算相邻峰值之间的正电压峰值和时间间隔。 所获得的峰值和峰值间隔用于基于峰值计算平均峰值间隔值A,基于峰值间隔的色散的变化系数B和基于峰值的变化系数C. 根据计算结果估算此期间的睡眠状态。 更具体地,参考图1。 如图5所示,通过检查平均值A是大于还是小于阈值a来估计睡眠状态为“觉醒状态”或“睡眠状态”,以及变化系数C是否大于或小于阈值c( S105),并且通过检查变化系数B是大于还是小于阈值b,以及变异系数C是否较大,睡眠状态被估计为“睡眠状态”,“轻睡眠”或“深睡眠” 或小于阈值c(S 109,S 113,S 116,S 117)。
    • 8. 发明授权
    • Heart beat/respiration measuring device
    • 心跳/呼吸测量装置
    • US07052469B2
    • 2006-05-30
    • US10707070
    • 2003-11-19
    • Takeshi MinamiuraHidetaka SakaiAkira Sakaguchi
    • Takeshi MinamiuraHidetaka SakaiAkira Sakaguchi
    • A61B5/00
    • A61B5/0205A61B5/02444A61B5/113A61B5/6887G06F19/00
    • A heart beat/respiration measuring device comprising a sensor adapted to be pressed against the human body, and a measuring circuit for measuring heart beats and respiration from the output of the sensor. The sensor includes a coil member elastically deformable when subjected to pressure by being pressed against the human body. The measuring circuit comprises an LC oscillation circuit wherein an inductance component and a capacitance component of the coil member serve respectively as a coil L and a capacitor C for oscillation, and a calculation processing circuit for detecting variations in the oscillation frequency of the LC oscillation circuit and calculations of a cardiac cycle, heart rate, respiratory cycle and respiration rate based on the frequency components of heart beats and respiration are included in the variations.
    • 一种心跳/呼吸测量装置,包括适于被压靠人体的传感器,以及用于测量来自传感器的输出的心脏跳动和呼吸的测量电路。 该传感器包括线圈构件,该线圈构件通过被压靠在人体上而受到压力时可弹性变形。 测量电路包括LC振荡电路,其中线圈部件的电感分量和电容分量分别用作线圈L和用于振荡的电容​​器C,以及用于检测LC振荡电路的振荡频率变化的计算处理电路 并且基于心跳和呼吸的频率分量的心脏周期,心率,呼吸周期和呼吸速率的计算包括在变化中。