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    Estimating cardiac pulse recovery from multi-channel source data via constrained source separation
    2.
    发明授权
    Estimating cardiac pulse recovery from multi-channel source data via constrained source separation 有权
    通过约束源分离从多信道源数据估计心脏脉搏恢复

    公开(公告)号：US08617081B2

    公开(公告)日：2013-12-31

    申请号：US13247683

    申请日：2011-09-28

    申请人： Lalit Keshav Mestha ,  Survi Kyal ,  Gill Rafael Tsouri ,  Sohail A. Dianat ,  Beilei Xu

    发明人： Lalit Keshav Mestha ,  Survi Kyal ,  Gill Rafael Tsouri ,  Sohail A. Dianat ,  Beilei Xu

    IPC分类号： A61B5/02

    CPC分类号： A61B5/0022 ,  A61B5/0077 ,  A61B5/024 ,  A61B2576/00 ,  G01J5/026 ,  G01J5/089 ,  G06F19/00 ,  G16H40/67

    摘要： What is disclosed is a system and method for recovering a patient's cardiac pulse rate from a sequence of video images recording of that patient. In one embodiment, a reference signal of a particular frequency is generated at predetermined frequency intervals and a constrained source separation is performed on the source data to obtain an estimation of the source signal intended to be recovered. The reference signal is updated and constrained source separation is again performed. These operations are repeated for all frequencies of the reference signal. The frequency at which a minimum error is achieved is determined to be the subject's recovered cardiac pulse frequency. In such a manner, the source signal is extracted and recovered reliably from captured multi-channel RGB signals or multispectral signals. The teachings hereof find their uses in a variety of medical solutions including various military, security and telemedicine applications. Various embodiments are disclosed.

    摘要翻译： 所公开的是用于从记录该患者的视频图像的序列中恢复患者心脏脉搏率的系统和方法。 在一个实施例中，以预定的频率间隔产生特定频率的参考信号，并且对源数据执行受限的源分离以获得旨在被恢复的源信号的估计。 更新参考信号并再次执行约束源分离。 对参考信号的所有频率重复这些操作。 实现最小误差的频率被确定为受试者的恢复心脏脉搏频率。 以这种方式，从捕获的多通道RGB信号或多光谱信号可靠地提取和恢复源信号。 其教学方法可用于各种医疗解决方案，包括各种军事，安全和远程医疗应用。 公开了各种实施例。

    METHODS ESTABLISHING A SYMMETRIC ENCRYPTION KEY AND DEVICES THEREOF
    3.
    发明申请
    METHODS ESTABLISHING A SYMMETRIC ENCRYPTION KEY AND DEVICES THEREOF 有权
    方法建立一个对称加密密钥及其设备

    公开(公告)号：US20100313025A1

    公开(公告)日：2010-12-09

    申请号：US12795400

    申请日：2010-06-07

    申请人： Gill Rafael Tsouri

    发明人： Gill Rafael Tsouri

    IPC分类号： H04L9/32

    CPC分类号： H04L9/0891 ,  H04L9/0838 ,  H04L9/0852 ,  H04L9/12 ,  H04L2209/08 ,  H04L2209/80 ,  H04L2209/88

    摘要： A method, computer readable medium, and an apparatus for establishing a symmetric encryption key includes determining at one of a plurality of communication devices a first phase difference based on a first transmission from another one of the plurality of communication devices. A first new encryption key is generated based on the determined first phase difference at the one of the plurality of communication devices. At another one of the plurality of communication devices a second phase difference is generated based on a second transmission from the one of the plurality of communication devices. A second new encryption key is generated based on the determined second phase difference at the another one of the plurality of communication devices. Authenticity of the generated first new encryption key and the generated second new encryption key is determined. Communication between the one of the plurality of communication devices and the another one of the plurality of communication devices is established when the generated first new encryption key and the generated second new encryption key are determined to be authenticated.

    摘要翻译： 一种用于建立对称加密密钥的方法，计算机可读介质和装置包括在多个通信设备中的一个处确定基于来自所述多个通信设备中的另一个的第一传输的第一相位差。 基于所确定的多个通信设备中的一个通信设备的第一相位差产生第一新加密密钥。 在多个通信设备中的另一个通信设备中，基于来自多个通信设备之一的第二传输来生成第二相位差。 基于在所述多个通信设备中的另一个通信设备上确定的第二相位差产生第二新加密密钥。 确定生成的第一新加密密钥和生成的第二新加密密钥的真实性。 当生成的第一新加密密钥和生成的第二新加密密钥被确定为认证时，建立多个通信设备中的一个和多个通信设备中的一个通信设备之间的通信。