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    METHOD AND APPARATUS FOR PROCESSING AND RECONSTRUCTING DATA
    3.
    发明申请
    METHOD AND APPARATUS FOR PROCESSING AND RECONSTRUCTING DATA 有权
    用于处理和重构数据的方法和装置

    公开(公告)号：US20120005248A1

    公开(公告)日：2012-01-05

    申请号：US12972005

    申请日：2010-12-17

    申请人： Harinath Garudadri ,  Pawan K. Baheti ,  Somdeb Majumdar

    发明人： Harinath Garudadri ,  Pawan K. Baheti ,  Somdeb Majumdar

    IPC分类号： G06F7/02

    CPC分类号： G06F7/02 ,  G06F2207/02 ,  H03M7/30 ,  H03M7/3059 ,  H03M7/3062

    摘要： Certain aspects of the present disclosure relate to a method for quantizing signals and reconstructing signals, and/or encoding or decoding data for storage or transmission. Points of a signal may be determined as local extrema or points where an absolute rise of the signal is greater than a threshold. The tread and value of the points may be quantized, and certain of the quantizations may be discarded before the quantizations are transmitted. After being received, the signal may be reconstructed from the quantizations using an iterative process.

    摘要翻译： 本公开的某些方面涉及用于量化信号和重构信号的方法，和/或用于存储或传输的数据的编码或解码的方法。 可以将信号的点确定为局部极值或信号的绝对上升大于阈值的点。 可以对点的胎面和值进行量化，并且在量化被发送之前某些量化可能被丢弃。 在接收之后，可以使用迭代过程从量化重构信号。

    Method and apparatus for processing and reconstructing data
    4.
    发明授权
    Method and apparatus for processing and reconstructing data 有权
    用于处理和重建数据的方法和装置

    公开(公告)号：US09075446B2

    公开(公告)日：2015-07-07

    申请号：US12972005

    申请日：2010-12-17

    申请人： Harinath Garudadri ,  Pawan K. Baheti ,  Somdeb Majumdar

    发明人： Harinath Garudadri ,  Pawan K. Baheti ,  Somdeb Majumdar

    IPC分类号： H03M7/30 ,  G06F7/02

    CPC分类号： G06F7/02 ,  G06F2207/02 ,  H03M7/30 ,  H03M7/3059 ,  H03M7/3062

    摘要： Certain aspects of the present disclosure relate to a method for quantizing signals and reconstructing signals, and/or encoding or decoding data for storage or transmission. Points of a signal may be determined as local extrema or points where an absolute rise of the signal is greater than a threshold. The tread and value of the points may be quantized, and certain of the quantizations may be discarded before the quantizations are transmitted. After being received, the signal may be reconstructed from the quantizations using an iterative process.

    摘要翻译： 本公开的某些方面涉及用于量化信号和重构信号的方法，和/或用于存储或传输的数据的编码或解码的方法。 可以将信号的点确定为局部极值或信号的绝对上升大于阈值的点。 可以对点的胎面和值进行量化，并且在量化被发送之前某些量化可能被丢弃。 在接收之后，可以使用迭代过程从量化重构信号。

    METHOD AND APPARATUS FOR NON-INVASIVE CUFF-LESS BLOOD PRESSURE ESTIMATION USING PULSE ARRIVAL TIME AND HEART RATE WITH ADAPTIVE CALIBRATION
    7.
    发明申请
    METHOD AND APPARATUS FOR NON-INVASIVE CUFF-LESS BLOOD PRESSURE ESTIMATION USING PULSE ARRIVAL TIME AND HEART RATE WITH ADAPTIVE CALIBRATION 审中-公开
    使用脉冲到达时间和自适应校准的心率的非入路CUFF-LESS血压压力估计的方法和装置

    公开(公告)号：US20100081946A1

    公开(公告)日：2010-04-01

    申请号：US12547982

    申请日：2009-08-26

    申请人： Harinath Garudadri ,  Federico S. Cattivelli ,  Pawan K. Baheti

    发明人： Harinath Garudadri ,  Federico S. Cattivelli ,  Pawan K. Baheti

    IPC分类号： A61B5/021

    CPC分类号： A61B5/0002 ,  A61B5/0024 ,  A61B5/0028 ,  A61B5/021 ,  A61B5/02125 ,  A61B5/02416 ,  A61B5/0245 ,  A61B5/0285 ,  A61B5/0456 ,  A61B5/681 ,  A61B5/7221

    摘要： Certain aspects of the present disclosure relate to a method for estimating a blood pressure using both a pulse arrival time (PAT) and an instantaneous heart rate (HR). The PAT can be measured as the delay between QRS peaks in an electrocardiogram (ECG) signal and corresponding points in a photoplethysmogram (PPG) waveform. Parameters of the estimation model can be determined through an initial training. Then, the model parameters can be recalibrated in constant intervals using the recursive least square (RLS) approach combined with a smooth bias fixing. The proposed estimation algorithm is applied on a multi-parameter intelligent monitoring for intensive care (MIMIC) database, and the results are compared with estimation methods that use PAT only or HR only. The proposed estimation algorithm meets, on average, the Association for the Advancement of Medical Instrumentation (AAMI) requirements and outperforms other methods from the prior art. It is also shown in the present disclosure that the proposed estimation algorithm is robust to unknown skew between the ECG and PPG signals.

    摘要翻译： 本公开的某些方面涉及使用脉冲到达时间（PAT）和瞬时心率（HR）两者来估计血压的方法。 可以测量PAT作为心电图（ECG）信号中的QRS峰值与光谱体积描记图（PPG）波形中对应点之间的延迟。 估计模型的参数可以通过初始训练来确定。 然后，模型参数可以使用递归最小二乘法（RLS）方法与平滑偏置固定相结合，以恒定间隔进行重新校准。 提出的估计算法应用于重度护理（MIMIC）数据库的多参数智能监测，并将结果与​​仅使用PAT或HR的估计方法进行比较。 所提出的估计算法平均符合医疗器械进步协会（AAMI）要求，并优于现有技术的其他方法。 在本公开中还示出了所提出的估计算法对ECG和PPG信号之间的未知偏差是鲁棒的。

    Method and apparatus for denoising of physiological signals
    9.
    发明授权
    Method and apparatus for denoising of physiological signals 有权
    用于去除生理信号的方法和装置

    公开(公告)号：US08780786B2

    公开(公告)日：2014-07-15

    申请号：US13484105

    申请日：2012-05-30

    申请人： Mohammed Shoaib ,  Gene Wesley Marsh ,  Harinath Garudadri ,  Somdeb Majumdar

    发明人： Mohammed Shoaib ,  Gene Wesley Marsh ,  Harinath Garudadri ,  Somdeb Majumdar

    IPC分类号： H04B7/185

    CPC分类号： A61B5/7203 ,  A61B5/0024 ,  A61B5/0245 ,  A61B5/0428 ,  A61B5/0452 ,  A61B5/721 ,  G06K9/0051 ,  G06K9/624

    摘要： Certain aspects of the present disclosure relate to techniques for denoising of physiological signals. A signal (e.g., physiological signal) comprising at least two signal channels can be decomposed (e.g., using independent component analysis (ICA)) into at least two independent components. Then, independent component (IC) denoising can be applied to estimate which of the at least two independent components belong to a signal space and which of the at least two independent components belong to a noise space using a statistical metric associated with the at least two signal channels. A de-noised version of the signal can be generated by preserving in the signal only one or more independent components of the at least two independent components belonging to the signal space.

    摘要翻译： 本公开的某些方面涉及用于去除生理信号的技术。 可以将包括至少两个信号通道的信号（例如，生理信号）分解为（例如，使用独立分量分析（ICA））至少两个独立分量。 然后，可以应用独立分量（IC）去噪来估计至少两个独立分量中的哪一个属于信号空间，以及至少两个独立分量中的哪一个属于噪声空间，使用与至少两个独立分量相关的统计度量 信号通道。 可以通过在信号中保留属于信号空间的至少两个独立分量中的一个或多个独立分量来产生信号的去噪声版本。

    Synchronizing timing mismatch by data insertion
    10.
    发明授权
    Synchronizing timing mismatch by data insertion 有权
    通过数据插入同步定时不匹配

    公开(公告)号：US08589720B2

    公开(公告)日：2013-11-19

    申请号：US12118469

    申请日：2008-05-09

    申请人： Harinath Garudadri ,  Somdeb Majumdar ,  Rouzbeh Kashef ,  Chinnappa K. Ganapathy

    发明人： Harinath Garudadri ,  Somdeb Majumdar ,  Rouzbeh Kashef ,  Chinnappa K. Ganapathy

    IPC分类号： G06F1/04

    CPC分类号： H04L7/0016 ,  G10L19/005 ,  H04L7/0029 ,  H04L7/005 ,  H04L25/05

    摘要： The rate at which data is provided by one device and the rate at which that data is processed by another device may differ. For example, a transmitting device may transmit data according to a transmit clock while a receiving device that receives the transmitted data may process the data according to a receive clock. If there is a timing mismatch between the transmit and receive clocks, the receiving device may receive data faster or slower than it processes the data. In such a case, there may be errors relating to the processing of the received data. To address timing mismatches such as this, the receiving device may delete data from or insert data into the received data. In conjunction with these operations, the receiving device may modify the received data at or near the insertion point or the deletion point in a manner that mitigates any adverse effect the insertion or deletion may have on a resulting output signal.

    摘要翻译： 一个设备提供数据的速率和另一个设备处理该数据的速率可能不同。 例如，发送装置可以根据发送时钟发送数据，而接收发送的数据的接收装置可以根据接收时钟处理数据。 如果在发送和接收时钟之间存在定时不匹配，则接收设备可能比处理数据更快或更慢地接收数据。 在这种情况下，可能存在与接收到的数据的处理有关的错误。 为了解决诸如此的定时不匹配，接收设备可以从接收到的数据中删除数据或将数据插入到数据中。 结合这些操作，接收设备可以以减轻插入或删除对结果输出信号可能产生的任何不利影响的方式在插入点或删除点处或附近修改接收到的数据。