Method and apparatus for reducing coupling between signals in a measurement system
    41.
    发明授权
    Method and apparatus for reducing coupling between signals in a measurement system 有权
    用于减少测量系统中的信号之间的耦合的方法和装置

    公开(公告)号:US08676286B2

    公开(公告)日:2014-03-18

    申请号:US12983823

    申请日:2011-01-03

    IPC分类号: A61B5/1455

    摘要: A method and an apparatus for separating a composite signal into a plurality of signals is described. A signal processor receives a composite signal and separates a composite signal in to separate output signals. Feedback from one or more of the output signals is provided to a configuration module that configures the signal processor to improve a quality of the output signals. In one embodiment, the signal processor separates the composite signal by applying a first demodulation scheme to the composite signal to generate a first output signal. In one embodiment, the signal processor also applies a second demodulation scheme to the composite signal to generate a second output signal. In one embodiment, the composite signal is obtained from a detector in a system for measuring one or more blood constituents.

    摘要翻译: 描述用于将复合信号分离成多个信号的方法和装置。 信号处理器接收复合信号并将复合信号分离成分离的输出信号。 来自一个或多个输出信号的反馈被提供给配置模块,其配置信号处理器以提高输出信号的质量。 在一个实施例中,信号处理器通过对复合信号应用第一解调方案来分离复合信号以产生第一输出信号。 在一个实施例中,信号处理器还对复合信号施加第二解调方案以产生第二输出信号。 在一个实施例中,复合信号从用于测量一个或多个血液成分的系统中的检测器获得。

    VARIABLE INDICATION ESTIMATOR
    42.
    发明申请
    VARIABLE INDICATION ESTIMATOR 有权
    可变指示估计器

    公开(公告)号:US20120330562A1

    公开(公告)日:2012-12-27

    申请号:US13601930

    申请日:2012-08-31

    IPC分类号: G06F19/00

    摘要: A variable indication estimator which determines an output value representative of a set of input data. For example, the estimator can reduce input data to estimates of a desired signal, select a time, and determine an output value from the estimates and the time. In one embodiment, the time is selected using one or more adjustable signal confidence parameters determine where along the estimates the output value will be computed. By varying the parameters, the characteristics of the output value are variable. For example, when input signal confidence is low, the parameters are adjusted so that the output value is a smoothed representation of the input signal. When input signal confidence is high, the parameters are adjusted so that the output value has a faster and more accurate response to the input signal.

    摘要翻译: 可变指示估计器,其确定代表一组输入数据的输出值。 例如,估计器可以将输入数据减少到期望信号的估计,选择时间,并从估计和时间确定输出值。 在一个实施例中,使用一个或多个可调信号置信参数来选择时间,确定沿着估计将在哪里计算输出值。 通过改变参数,输出值的特性是可变的。 例如,当输入信号置信度低时,调整参数,使得输出值是输入信号的平滑表示。 当输入信号置信度高时,调整参数,使得输出值对输入信号的响应更快更准确。

    CALIBRATION FOR MULTI-STAGE PHYSIOLOGICAL MONITORS
    43.
    发明申请
    CALIBRATION FOR MULTI-STAGE PHYSIOLOGICAL MONITORS 有权
    多级生理监测仪校准

    公开(公告)号:US20110196211A1

    公开(公告)日:2011-08-11

    申请号:US12960325

    申请日:2010-12-03

    IPC分类号: A61B5/00

    摘要: A physiological monitor is provided for determining a physiological parameter of a medical patient with a multi-stage sensor assembly. The monitor includes a signal processor configured to receive a signal indicative of a physiological parameter of a medical patient from a multi-stage sensor assembly. The multi-stage sensor assembly is configured to be attached to the physiological monitor and the medical patient. The monitor of certain embodiments also includes an information element query module configured to obtain calibration information from an information element provided in a plurality of stages of the multi-stage sensor assembly. In some embodiments, the signal processor is configured to determine the physiological parameter of the medical patient based upon said signal and said calibration information.

    摘要翻译: 提供生理监测器用于通过多级传感器组件确定医疗患者的生理参数。 监视器包括被配置为从多级传感器组件接收指示医疗患者的生理参数的信号的信号处理器。 多级传感器组件被配置为附接到生理监视器和医疗病人。 某些实施例的监视器还包括被配置为从在多级传感器组件的多级中提供的信息元素获得校准信息的信息元素查询模块。 在一些实施例中,信号处理器被配置为基于所述信号和所述校准信息来确定医疗患者的生理参数。

    Sine saturation transform
    45.
    发明授权
    Sine saturation transform 有权
    正弦饱和度变换

    公开(公告)号:US07904132B2

    公开(公告)日:2011-03-08

    申请号:US12336419

    申请日:2008-12-16

    IPC分类号: A61B5/1455 A61B5/024

    摘要: A transform for determining a physiological measurement is disclosed. The transform determines a basis function index from a physiological signal obtained through a physiological sensor. A basis function waveform is generated based on basis function index. The basis function waveform is then used to determine an optimized basis function waveform. The optimized basis function waveform is used to calculate a physiological measurement.

    摘要翻译: 公开了用于确定生理测量的变换。 该变换根据通过生理传感器获得的生理信号确定基函数指数。 基于功能指标生成基函数波形。 然后基函数波形用于确定优化的基函数波形。 优化的基函数波形用于计算生理测量。

    Variable indication estimator
    46.
    发明授权
    Variable indication estimator 有权
    变量指示估计器

    公开(公告)号:US07873497B2

    公开(公告)日:2011-01-18

    申请号:US12362463

    申请日:2009-01-29

    IPC分类号: G06F19/00

    摘要: A variable indication estimator which determines an output value representative of a set of input data. For example, the estimator can reduce input data to estimates of a desired signal, select a time, and determine an output value from the estimates and the time. In one embodiment, the time is selected using one or more adjustable signal confidence parameters determine where along the estimates the output value will be computed. By varying the parameters, the characteristics of the output value are variable. For example, when input signal confidence is low, the parameters are adjusted so that the output value is a smoothed representation of the input signal. When input signal confidence is high, the parameters are adjusted so that the output value has a faster and more accurate response to the input signal.

    摘要翻译: 可变指示估计器,其确定代表一组输入数据的输出值。 例如,估计器可以将输入数据减少到期望信号的估计,选择时间,并从估计和时间确定输出值。 在一个实施例中,使用一个或多个可调信号置信参数来选择时间,确定沿着估计将在哪里计算输出值。 通过改变参数,输出值的特性是可变的。 例如,当输入信号置信度低时,调整参数,使得输出值是输入信号的平滑表示。 当输入信号置信度高时,调整参数,使得输出值对输入信号的响应更快更准确。

    Variable indication estimator
    47.
    发明授权
    Variable indication estimator 有权
    变量指示估计器

    公开(公告)号:US07499835B2

    公开(公告)日:2009-03-03

    申请号:US11375662

    申请日:2006-03-14

    IPC分类号: G06F15/00

    摘要: A variable indication estimator which determines an output value representative of a set of input data. For example, the estimator can reduce input data to estimates of a desired signal, select a time, and determine an output value from the estimates and the time. In one embodiment, the time is selected using one or more adjustable signal confidence parameters determine where along the estimates the output value will be computed. By varying the parameters, the characteristics of the output value are variable. For example, when input signal confidence is low, the parameters are adjusted so that the output value is a smoothed representation of the input signal. When input signal confidence is high, the parameters are adjusted so that the output value has a faster and more accurate response to the input signal.

    摘要翻译: 可变指示估计器,其确定代表一组输入数据的输出值。 例如,估计器可以将输入数据减少到期望信号的估计,选择时间,并从估计和时间确定输出值。 在一个实施例中,使用一个或多个可调信号置信参数来选择时间,确定沿着估计将在哪里计算输出值。 通过改变参数,输出值的特性是可变的。 例如,当输入信号置信度低时,调整参数,使得输出值是输入信号的平滑表示。 当输入信号置信度高时,调整参数,使得输出值对输入信号的响应更快更准确。

    Multi-wavelength physiological monitor
    48.
    发明授权
    Multi-wavelength physiological monitor 有权
    多波长生理监护仪

    公开(公告)号:US07343186B2

    公开(公告)日:2008-03-11

    申请号:US11139291

    申请日:2005-05-27

    IPC分类号: A61B5/00

    摘要: A physiological monitor for determining blood oxygen saturation of a medical patient includes a sensor, a signal processor and a display. The sensor includes at least three light emitting diodes. Each light emitting diode is adapted to emit light of a different wavelength. The sensor also includes a detector, where the detector is adapted to receive light from the three light emitting diodes after being attenuated by tissue. The detector generates an output signal based at least in part upon the received light. The signal processor determines blood oxygen saturation based at least upon the output signal, and the display provides an indication of the blood oxygen saturation.

    摘要翻译: 用于确定医疗患者的血氧饱和度的生理监测器包括传感器,信号处理器和显示器。 传感器包括至少三个发光二极管。 每个发光二极管适于发射不同波长的光。 传感器还包括检测器,其中检测器适于在被组织衰减之后接收来自三个发光二极管的光。 检测器至少部分地基于所接收的光产生输出信号。 信号处理器至少基于输出信号确定血氧饱和度,并且显示器提供血氧饱和度的指示。

    Parameter compensated pulse oximeter
    49.
    发明授权
    Parameter compensated pulse oximeter 有权
    参数补偿脉搏血氧仪

    公开(公告)号:US07274955B2

    公开(公告)日:2007-09-25

    申请号:US10671179

    申请日:2003-09-25

    IPC分类号: A61B5/00

    摘要: A monitor has a primary input responsive to a first property of a tissue site. An uncompensated measurement is determinable from the primary input. A parameter input is responsive to a second property associated with the tissue site, where the first property is dependent upon the second property. The monitor also has a compensation relationship of the primary input, the parameter input and a compensated measurement. A processor is configured to output a compensated measurement from the primary input and the parameter input utilizing the compensation relationship, where the compensated measurement more accurately represents the first property than the uncompensated measurement.

    摘要翻译: 显示器具有响应于组织部位的第一属性的主要输入。 未经补偿的测量可以从主输入确定。 参数输入响应于与组织部位相关联的第二属性,其中第一属性取决于第二属性。 显示器还具有主输入,参数输入和补偿测量的补偿关系。 处理器被配置为使用补偿关系从主输入和参数输入输出补偿测量,其中补偿测量更准确地表示比未补偿测量的第一特性。

    Signal component processor
    50.
    发明授权
    Signal component processor 有权
    信号分量处理器

    公开(公告)号:US06850787B2

    公开(公告)日:2005-02-01

    申请号:US10184032

    申请日:2002-06-26

    摘要: A signal processor generates basis functions and identifies at least one basis function component of a sensor signal in order to calculate a physiological measurement. The signal processor is advantageously applied to pulse oximetry so as to directly calculate oxygen saturation and so as to calculate a robust oxygen saturation measurement. In particular, a signal component transform may be calculated within a window around a derived pulse rate estimate. A signal component transform may also utilize sinusoidal basis functions, and an optimization of a signal component transform may occur at a particular frequency or a set of frequencies. A sinusoidal waveform or waveforms at that frequency or set of frequencies is generated to select associated red and infrared components of the sensor signal, and an oxygen saturation is calculated from a magnitude ratio of these components.

    摘要翻译: 信号处理器生成基函数并且识别传感器信号的至少一个基函数分量,以便计算生理测量。 信号处理器有利地应用于脉搏血氧饱和度,以便直接计算氧饱和度,以便计算鲁棒的氧饱和度测量。 特别地,可以在围绕导出的脉冲率估计的窗口内计算信号分量变换。 信号分量变换还可以利用正弦基函数,并且可以在特定频率或一组频率处发生信号分量变换的优化。 产生在该频率或频率组中的正弦波形或波形以选择传感器信号的相关联的红色和红外分量,并且根据这些分量的幅度比计算氧饱和度。