Method of analyzing and processing signals
    2.
    发明授权
    Method of analyzing and processing signals 有权
    信号分析处理方法

    公开(公告)号:US09198616B2

    公开(公告)日:2015-12-01

    申请号:US13590095

    申请日:2012-08-20

    Abstract: A physiological measurement system is disclosed which can take a pulse oximetry signal such as a photoplethysmogram from a patient and then analyze the signal to measure physiological parameters including respiration, pulse, oxygen saturation and movement. The system comprises a pulse oximeter which includes a light emitting device and a photodetector attachable to a subject to obtain a pulse oximetry signal; analog to digital converter means arranged to convert said pulse oximetry signal into a digital pulse oximetry signal; signal processing means suitable to receive said digital pulse oximetry signal and arranged to decompose that signal by wavelet transform means; feature extraction means arranged to derive physiological information from the decomposed signal; an analyzer component arranged to collect information from the feature extraction means; and data output means arranged in communication with the analyzer component.

    Abstract translation: 公开了一种生理测量系统,其可以从患者获取诸如光谱体积图的脉搏血氧测定信号,然后分析该信号以测量生理参数,包括呼吸,脉搏,氧饱和度和运动。 该系统包括脉搏血氧计,其包括发光装置和可附接到对象的光电检测器,以获得脉搏血氧饱和度信号; 模数转换器装置,被布置成将所述脉搏血氧测定信号转换成数字脉搏血氧饱和度信号; 信号处理装置,适于接收所述数字脉搏血氧饱和度信号,并被布置成通过小波变换装置分解该信号; 特征提取装置,被布置成从分解信号中导出生理信息; 分析器组件,被布置成从特征提取装置收集信息; 以及数据输出装置,被布置成与分析器组件通信。

    Signal processing systems and methods using multiple signals
    3.
    发明授权
    Signal processing systems and methods using multiple signals 有权
    信号处理系统和使用多种信号的方法

    公开(公告)号:US09031627B2

    公开(公告)日:2015-05-12

    申请号:US12242918

    申请日:2008-10-01

    CPC classification number: A61B5/726 A61B5/14551 A61B5/7203

    Abstract: According to embodiments, techniques for signal processing using multiple signals are disclosed. A first scalogram may be generated from a first signal and a second scalogram may be generated from a second signal. A modified or masked scalogram may then be generated based on the first and second scalograms. The modified scalogram may then be used to determine at least one physiological parameter. In some embodiments, one or both of the first signal and the second signal may be photoplethysmograph (PPG) signals obtained from a pulse oximeter.

    Abstract translation: 根据实施例,公开了使用多个信号的信号处理技术。 可以从第一信号产生第一缩放图,并且可以从第二信号生成第二缩放图。 然后可以基于第一和第二缩放图来生成经修改或掩蔽的缩放图。 然后可以使用经修改的缩放图来确定至少一个生理参数。 在一些实施例中,第一信号和第二信号中的一个或两个可以是从脉搏血氧计获得的光电体积描记术(PPG)信号。

    SYSTEMS AND METHODS FOR IDENTIFYING PULSE RATES
    7.
    发明申请
    SYSTEMS AND METHODS FOR IDENTIFYING PULSE RATES 审中-公开
    用于识别脉冲速率的系统和方法

    公开(公告)号:US20130012792A1

    公开(公告)日:2013-01-10

    申请号:US13620297

    申请日:2012-09-14

    Abstract: According to embodiments, techniques for using continuous wavelet transforms and spectral transforms to identify pulse rates from a photoplethysmographic (PPG) signal are disclosed. According to embodiments, candidate pulse rates of the PPG signal may be identified from a wavelet transformed PPG signal and a spectral transformed PPG signal. A pulse rate may be determined from the candidate pulse rates by selecting one of the candidate pulse rates or by combining the candidate pulse rates. According to embodiments, a spectral transform of a PPG signal may be performed to identify a frequency region associated with a pulse rate of the PPG signal. A continuous wavelet transform of the PPG signal at a scale corresponding to the identified frequency region may be performed to determine a pulse rate from the wavelet transformed signal.

    Abstract translation: 根据实施例,公开了使用连续小波变换和频谱变换来识别来自光电体积描记术(PPG)信号的脉率的技术。 根据实施例,可以从小波变换的PPG信号和频谱变换的PPG信号中识别PPG信号的候选脉冲速率。 可以通过选择候选脉冲速率之一或通过组合候选脉冲速率从候选脉冲速率确定脉率。 根据实施例,可以执行PPG信号的频谱变换以识别与PPG信号的脉冲速率相关联的频率区域。 可以执行以与所识别的频率区域对应的比例的PPG信号的连续小波变换,以从小波变换信号确定脉率。

    Method of analyzing and processing signals
    9.
    发明授权
    Method of analyzing and processing signals 有权
    信号分析处理方法

    公开(公告)号:US08255029B2

    公开(公告)日:2012-08-28

    申请号:US10547430

    申请日:2004-02-27

    Abstract: A physiological measurement system is disclosed which can take a pulse oximetry signal such as a photoplethysmogram from a patient and then analyse the signal to measure physiological parameters including respiration, pulse, oxygen saturation and movement. The system can be used as a general monitor, or more specifically, to for infant or adult apnea, and to guard against sudden infant death syndrome. The system comprises a pulse oximeter which includes a light emitting device and a photodetector attachable to a subject to obtain a pulse oximetry signal; analogue to digital converter means arranged to convert said pulse oximetry signal into a digital pulse oximetry signal; signal processing means suitable to receive said digital pulse oximetry signal and arranged to decompose that signal by wavelet transform means; feature extraction means arranged to derive physiological information from the decomposed signal; an analyser component arranged to collect information from the feature extraction means; and data output means arranged in communication with the analyser component.

    Abstract translation: 公开了一种生理测量系统,其可以从患者获取诸如光谱体积图的脉搏血氧测定信号,然后分析该信号以测量生理参数,包括呼吸,脉搏,氧饱和度和运动。 该系统可以用作一般监视器,或者更具体地用于婴儿或成人呼吸暂停,并且防止突然的婴儿死亡综合征。 该系统包括脉搏血氧计,其包括发光装置和可附接到对象的光电检测器,以获得脉搏血氧饱和度信号; 模拟数字转换器装置,被布置成将所述脉搏血氧测定信号转换成数字脉搏血氧饱和度信号; 信号处理装置,适于接收所述数字脉搏血氧饱和度信号,并被布置成通过小波变换装置分解该信号; 特征提取装置,被布置成从分解信号中导出生理信息; 分析器组件,被布置成从特征提取装置收集信息; 以及数据输出装置,被布置成与分析器组件通信。

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