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    • 1. 发明授权
    • Method and apparatus for monitoring breathing cycle by frequency analysis of an acoustic data stream
    • 用于通过声学数据流的频率分析来监测呼吸周期的方法和装置
    • US09232910B2
    • 2016-01-12
    • US13129629
    • 2009-11-16
    • Hisham AlshaerGeoffrey Roy FernieT. Douglas Bradley
    • Hisham AlshaerGeoffrey Roy FernieT. Douglas Bradley
    • A61B5/08A61B5/00A61B7/00A61B7/04A61B5/113A61B5/097
    • A61B5/0803A61B5/097A61B5/1135A61B5/4818A61B5/7257A61B7/003A61B7/04A61B2562/0204
    • Disclosed herein is a method and apparatus for monitoring, identifying and determining the breathing cycle of an individual from processed acoustic signal waveform data. The breathing sounds of an individual are recorded using a microphone and digitized such that the breathing sounds may be plotted. The data is segmented and transformed to form a plurality of segments representative of a frequency spectrum. The frequency spectrum data is transformed so as to produce magnitude bins and the sum of lower magnitude bins and the sum of higher magnitude bins are determined in a sampling of segments. A Bands Ratio is determined from the sum of lower magnitude bins and the sum of higher magnitude bins in the sampling of segments. A first bands ratio is then determined within a given segment and compared to the mean bands ratio. If the first bands ratio of the given segment is greater than the mean bands ratio by at least a predetermined multiplier, the given segment is labeled as inspiration. If the first bands ratio of the given segment is less than the mean bands ratio by at least a predetermined multiplier, the given segment is labeled as expiration.
    • 本文公开了一种用于通过处理的声信号波形数据监测,识别和确定个体的呼吸周期的方法和装置。 使用麦克风记录个人的呼吸声音,并将其数字化,使得可以绘制呼吸音。 数据被分段和变换以形成表示频谱的多个段。 变频频谱数据以产生幅度级,并且在段的采样中确定较低幅度级和和较高幅度级之和的和。 带宽比由下限幅度总和和段的采样中较高幅度级的总和确定。 然后在给定段内确定第一带比,并与平均带比进行比较。 如果给定段的第一频带比率大于平均频带比至少预定的乘法器,则给定分段被标记为灵感。 如果给定段的第一频带比率小于平均频带比至少一个预定乘数,那么给定分段被标记为到期。
    • 4. 发明申请
    • METHOD AND APPARATUS FOR MONITORING BREATHING CYCLE BY FREQUENCY ANALYSIS OF AN ACOUSTIC DATA STREAM
    • 通过声学数据流的频率分析监测呼吸周期的方法和装置
    • US20110288431A1
    • 2011-11-24
    • US13129629
    • 2009-11-16
    • Hisham AlshaerGeoffrey Roy FernieT. Douglas Bradley
    • Hisham AlshaerGeoffrey Roy FernieT. Douglas Bradley
    • A61B5/113A61B7/00
    • A61B5/0803A61B5/097A61B5/1135A61B5/4818A61B5/7257A61B7/003A61B7/04A61B2562/0204
    • Disclosed herein is a method and apparatus for monitoring, identifying and determining the breathing cycle of an individual from processed acoustic signal waveform data. The breathing sounds of an individual are recorded using a microphone and digitized such that the breathing sounds may be plotted. The data is segmented and transformed to form a plurality of segments representative of a frequency spectrum. The frequency spectrum data is transformed so as to produce magnitude bins and the sum of lower magnitude bins and the sum of higher magnitude bins are determined in a sampling of segments. A Bands Ratio is determined from the sum of lower magnitude bins and the sum of higher magnitude bins in the sampling of segments. A first bands ratio is then determined within a given segment and compared to the mean bands ratio. If the first bands ratio of the given segment is greater than the mean bands ratio by at least a predetermined multiplier, the given segment is labeled as inspiration. If the first bands ratio of the given segment is less than the mean bands ratio by at least a predetermined multiplier, the given segment is labeled as expiration.
    • 本文公开了一种用于通过处理的声信号波形数据监测,识别和确定个体的呼吸周期的方法和装置。 使用麦克风记录个人的呼吸声音,并将其数字化,使得可以绘制呼吸音。 数据被分段和变换以形成表示频谱的多个段。 变频频谱数据以产生幅度级,并且在段的采样中确定较低幅度级和和较高幅度级之和的和。 带宽比由下限幅度总和和段的采样中较高幅度级的总和确定。 然后在给定段内确定第一带比,并与平均带比进行比较。 如果给定段的第一频带比率大于平均频带比至少预定的乘法器,则给定分段被标记为灵感。 如果给定段的第一频带比率小于平均频带比至少一个预定乘数,那么给定分段被标记为到期。
    • 9. 发明申请
    • METHOD AND DEVICE FOR APNEA AND HYPOPNEA DETECTION
    • APNEA和HYPOPNEA检测的方法和装置
    • US20140194780A1
    • 2014-07-10
    • US14117922
    • 2012-05-17
    • Hisham AlshaerGeoffrey Roy FernieT. Douglas Bradley
    • Hisham AlshaerGeoffrey Roy FernieT. Douglas Bradley
    • A61B5/00A61B7/04A61B7/00
    • A61B7/04A61B5/087A61B5/4818A61B5/6803A61B5/7257A61B5/7282A61B7/003A61B2562/0204
    • Disclosed herein is a method and device for apnea and hypopnea detection. In one embodiment, a method is provided for detecting apneas and hypopneas from a digitized breath sound recording acquired from a candidate suspected of sleep apnea. The method comprises scanning an amplitude profile of the digitized breath sound recording to identify a prospect event segment; evaluating characteristics of the prospect event segment for consistency with one or more preset apnea-specific criteria; classifying the prospect event segment as representative of an apnea upon it satisfying each of the one or more apnea-specific criteria; evaluating the prospect event characteristics for consistency with one or more preset hypopnea-specific criteria distinct from the apnea-specific criteria; and classifying the prospect event segment as representative of a hypopnea upon it satisfying each of the one or more hypopnea-specific criteria.
    • 本文公开了一种呼吸暂停和呼吸不足检测的方法和装置。 在一个实施例中,提供了一种从怀疑为睡眠呼吸暂停的候选者获取的数字化呼吸音记录中检测呼吸暂停和呼吸不足的方法。 该方法包括扫描数字化呼吸音记录的幅度分布以识别潜在事件段; 评估前景事件段的特征,以与一个或多个预设的呼吸暂停特异性标准保持一致; 将前景事件段分类为代表呼吸暂停的符合每个一个或多个呼吸暂停特异性标准的前景事件段; 评估前景事件特征,以与一个或多个与呼吸暂停特异性标准不同的预设呼吸不足特异性标准保持一致; 并将前景事件分段作为代表呼吸不足的代表,满足每个一个或多个呼吸不足特异性标准。