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    • 11. 发明申请
    • A PPG-BASED PHYSIOLOGICAL SENSING SYSTEM WITH A SPATIO-TEMPORAL SAMPLING APPROACH TOWARDS IDENTIFYING AND REMOVING MOTION ARTIFACTS FROM OPTICAL SIGNALS
    • 基于PPG的生理感测系统,具有从光信号识别和移除运动人体的空间采样方法
    • WO2016108056A1
    • 2016-07-07
    • PCT/IB2014/002477
    • 2014-12-30
    • LIFEQ GLOBAL LIMITEDOLIVIER, Laurence, Richard
    • OLIVIER, Laurence, Richard
    • A61B5/0205A61B5/1455
    • A61B5/14552A61B5/02427A61B5/02438A61B5/7214
    • The present invention pertains mainly to the fields of fitness and/or sport performance by enabling robust and accurate determination of physiological parameters, including, but not limited to, heart rate and breathing rate as indicator of physical exertion or intensity during exercise. In one embodiment, the present invention is a PPG-based physiological sensing system employing a spatio- temporal sampling approach towards identifying and removing motion artifacts from optical signals received from a wearable optical sensing device in real-time and during various states of physical activity. The invention comprises a wearable optical sensing device capable of sensing and transmitting optical signals representative of physiological parameters to a remote electronic device. The wearable optical sensing device comprises an optical sensing unit with a light-emitting and light-detecting module for measuring blood volume changes caused by expansion and contraction of the small blood vessels in the skin and underlying tissue during the cardiac cycle. The spatial arrangement and temporal sampling configuration (sequence) of the system subsequently allows for a common absorption point to be determined mathematically for each multi-channel sampling period, thereby obtaining an instantaneous optical measurement at different positions on the propagating pulse wave.
    • 本发明主要涉及健身和/或运动表现的领域,其通过使健康和精确地确定生理参数,包括但不限于心率和呼吸频率作为运动中体力消耗或强度的指标。 在一个实施例中,本发明是基于PPG的生理感测系统,其采用时空采样方法来实时地和在各种身体活动状态期间从可佩戴光学感测装置接收的光信号中识别和去除运动伪像。 本发明包括一种能够将代表生理参数的光学信号传感并传输到远程电子设备的可佩戴光学感测装置。 可穿戴光学感测装置包括具有发光和光检测模块的光学感测单元,用于测量在心脏周期期间皮肤和下面组织中的小血管的膨胀和收缩引起的血液体积变化。 系统的空间布置和时间采样配置(序列)随后允许在每个多通道采样周期对数学确定公共吸收点,从而在传播脉冲波的不同位置获得瞬时光学测量。