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    • 1. 发明授权
    • Array compensating beamformer
    • 阵列补偿波束形成器
    • US4980870A
    • 1990-12-25
    • US204753
    • 1988-06-10
    • Brett A. SpiveyEdward G. NewmanPaul A. Johnson
    • Brett A. SpiveyEdward G. NewmanPaul A. Johnson
    • G01S3/48
    • G01S3/48
    • A compensating beamformer which requires orders of magnitude fewer calculations that prior art methods. A compensating beamformer is provided which comprises a plurality of sensing elements and a plurality of analog-to-digital converters, for converting incoming analog signals to digital form. Digital signals from at least four such elements are used to compute phase angle information which is combined to form a matrix of input data in the frequency domain. An unweighted steering vector is determined to sample data from the target direction. A corrector matrix is calculated based on input data from sensing elements. That corrector matrix along with its inverse, which is determined recursively, is used in combination with the unweighted steering vector to determine an optimal steering vector. The input data in the frequency domain are then multiplied by the optimal steering vector to obtain signals in the directions of interest. In preferred embodiments of this invention these calculations are repeated systolically to provide optimal steering vector updates on an essentially real-time basis.
    • 一种补偿波束形成器,其需要几个数量级的现有技术方法的计算。 提供了一种补偿波束形成器,其包括多个感测元件和多个模数转换器,用于将输入的模拟信号转换为数字形式。 使用来自至少四个这样的元件的数字信号来计算相位角信息,该相位角信息被组合以形成频域中的输入数据的矩阵。 确定未加权的导向矢量以从目标方向采样数据。 基于来自感测元件的输入数据计算校正矩阵。 与递归确定的校正矩阵一起使用,与未加权的导向矢量组合使用,以确定最佳导向矢量。 然后将频域中的输入数据乘以最佳导向矢量,以获得感兴趣方向的信号。 在本发明的优选实施例中,这些计算被重复地进行重构,以在基本上实时的基础上提供最佳的导向向量更新。
    • 7. 发明授权
    • Mobile computer
    • 移动电脑
    • US06304459B1
    • 2001-10-16
    • US09092261
    • 1998-06-05
    • Kazuyuki ToyosatoMichael D. JenkinsEdward G. Newman
    • Kazuyuki ToyosatoMichael D. JenkinsEdward G. Newman
    • G06F116
    • G06F1/203G06F1/163G06F1/20
    • This is a body-worn, hands-free activated computer that is constructed of materials that conduct heat and is heat insulating. The portion of the computer that is heat insulating is located closest to a wearer's body, the portion that is heat conducting is located farthest from the user's body. Heat is a major problem in wearable computers and this invention provides efficient ways for coping with heat generated by the CPU inside the computer housing. In addition to materials used in constructing the housing for this computer, a heat sink and heat-insulating logs are used to further deflect and direct heat away from a user.
    • 这是一种身体磨损,免提的激活计算机,由能够传导热量并隔热的材料构成。 绝热的计算机部分位于最靠近穿戴者身体的位置,导热部分位于使用者身体最远处。 耐热是可穿戴式计算机中的主要问题,本发明提供了有效的方式来应对由计算机外壳内部的CPU产生的热量。 除了用于构造用于该计算机的壳体的材料之外,还使用散热器和绝热原木来进一步偏转并将热量从使用者引导出来。