中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

3 records (took 0.021 seconds)

    Analysis of biological signals using data from arrays of sensors
    1.
    发明公开
    Analysis of biological signals using data from arrays of sensors 失效
    分析冯生物学信号。

    公开(公告)号：EP0477434A1

    公开(公告)日：1992-04-01

    申请号：EP90124050.7

    申请日：1990-12-13

    Applicant: BIOMAGNETIC TECHNOLOGIES, INC.

    Inventor： Robinson, Stephen E. ,  Black, William C., Jr.

    IPC: A61B5/04 ,  G01R33/035 ,  H01Q3/26

    CPC classification number: G06K9/0057 ,  A61B5/04005 ,  A61B5/4064 ,  G01R33/035 ,  H01Q3/26

    Abstract: Signals produced by brain activity are measured by each sensor of an array of magnetic and/or electrical sensors external to but proximate to the head (or other portion of the body) of a subject. The measurements obtained simultaneously from all of the sensors are combined in a manner to permit selective measurement of the electrical activity from a specified location within the body, or alternatively, to permit the location in the body producing a particular type of response to be identified. The instantaneous measurement of each sensor is scaled by a weighting coefficient for that sensor, and the products added over all of the sensors. Preferably, the weighting coefficients are calculated from the covariance matrix of the measurements made by the array of sensors. Alternatively, the weighting coefficients may be calculated from a mathematical model of the portion of the body being measured that includes information on the shape of the potential source, the extent or type of source activity, the electrical and magnetic properties of the media, and the locations and orientations of the sources and the sensors.

    Abstract translation: 通过大脑活动产生的信号由对象头部（或身体的其他部分）外部但接近的磁性和/或电传感器阵列的每个传感器测量。 从所有传感器同时获得的测量结合以允许从身体内的指定位置选择性地测量电活动，或者可选地允许身体中的位置产生特定类型的响应以被识别。 每个传感器的瞬时测量通过该传感器的加权系数进行缩放，并且所有传感器都添加产品。 优选地，根据由传感器阵列进行的测量的协方差矩阵来计算加权系数。 或者，可以根据被测体的部分的数学模型来计算加权系数，该数学模型包括关于潜在源的形状，源活动的程度或类型，介质的电和磁特性的信息，以及 源和传感器的位置和方向。

Patent Agency Ranking