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    • 1. 发明申请
    • Method and Apparatus for Secure Digital Communications Using Chaotic Signals
    • 用于使用混沌信号进行安全数字通信的方法和装置
    • US20080107268A1
    • 2008-05-08
    • US11853012
    • 2007-09-10
    • Gustavo RohdeJonathan NicholsFrank Bucholtz
    • Gustavo RohdeJonathan NicholsFrank Bucholtz
    • H04L9/06
    • H04L9/001H04K1/025H04L27/001
    • A system and method for encoding zero and one bits for transmission, including generating a first signal from a non-linear chaotic system to represent the one bit, with the signal's embedded vectors being within the non-linear system's attractor set, and generating a second signal from the non-linear system to represent the zero bit, with the signal's embedded vectors being outside the non-linear system's attractor set. The second signal encoding the zero bit can be generated by adding together two chaotic signals arising from the non-linear system initialized with different initial conditions, and weighting the second signal to have approximately the same energy as the first signal. One suitable chaotic systems is a Lorenz system. Systems and methods for decoding a transmitted stream of signals compare a detection statistic of the received stream of signals to a threshold value that depends on the chaotic system.
    • 一种用于对用于传输的零和一位进行编码的系统和方法,包括:生成来自非线性混沌系统的第一信号以表示所述一比特,所述信号的嵌入向量在所述非线性系统的吸引子集合内,并产生第二信号 来自非线性系统的信号表示零位,信号的嵌入向量位于非线性系统的吸引子集之外。 可以通过将从由不同初始条件初始化的非线性系统产生的两个混沌信号相加在一起来编码零比特的第二信号,并且将第二信号加权以具有与第一信号大致相同的能量。 一个合适的混沌系统是Lorenz系统。 用于解码发送的信号流的系统和方法将所接收的信号流的检测统计量与取决于混沌系统的阈值进行比较。
    • 4. 发明授权
    • Method and apparatus for detecting damage in structures
    • 检测结构损伤的方法和装置
    • US07363172B2
    • 2008-04-22
    • US11620177
    • 2007-01-05
    • Jonathan NicholsMark Seaver
    • Jonathan NicholsMark Seaver
    • G06F19/00G06F11/30
    • G06F17/30551
    • A method including providing time series structural response data from a structure. A plurality of linear surrogate data series is generated from the time series structural response data. A first generalized correlation function is estimated for each linear surrogate data series of the plurality of linear surrogate data series to generate a confidence interval. The same correlation function is estimated for the time series structural response data. The output of the generalized correlation function applied to the structural response data is compared to the confidence interval. A damage-induced nonlinearity in the structure is indicated when the output of the generalized correlation function applied to the structural response data is outside of the confidence interval.
    • 一种包括从结构提供时间序列结构响应数据的方法。 从时间序列结构响应数据生成多个线性替代数据序列。 针对多个线性替代数据序列的每个线性替代数据序列估计第一广义相关函数,以产生置信区间。 对时间序列结构响应数据估计相同的相关函数。 将应用于结构响应数据的广义相关函数的输出与置信区间进行比较。 当应用于结构响应数据的广义相关函数的输出在置信区间之外时,指示结构中的损伤引起的非线性。
    • 5. 发明申请
    • Flame-perforated aperture masks
    • 火焰穿孔孔罩
    • US20070148337A1
    • 2007-06-28
    • US11315111
    • 2005-12-22
    • Jonathan NicholsJeffrey TokieMichael BenchMark StrobelJoel GetschelDonald McClure
    • Jonathan NicholsJeffrey TokieMichael BenchMark StrobelJoel GetschelDonald McClure
    • H05K3/00B05D3/08B05D1/32C23C16/00
    • C23C14/562C23C14/042H05K1/0393H05K3/143H05K2203/1545
    • An aperture mask is provided comprising an elongated web of flexible film having at least one deposition mask pattern formed in the film, wherein the deposition mask pattern defines deposition apertures that extend through the film that define at least a portion of one or more electronic circuit elements, and wherein deposition apertures are bounded by a rim, the rim being a portion of the mask which has a thickness greater than an average thickness for the mask. In another aspect, the present invention provides a method of making such an aperture mask comprising the steps of: providing a support surface, wherein the support surface includes a plurality of lowered portions; providing a burner, wherein the burner supports a flame, and wherein the flame includes a flame tip opposite the burner; contacting at least a portion of an elongated web of flexible film against the support surface; and heating the film with a flame from a burner to create apertures in the film in the areas covering the plurality of lowered portions.
    • 提供了一种光阑掩模,其包括具有形成在所述膜中的至少一个沉积掩模图案的柔性膜的细长网,其中所述沉积掩模图案限定延伸穿过所述膜的沉积孔,其限定一个或多个电子电路元件的至少一部分 ,并且其中沉积孔由边缘限定,所述边缘是所述掩模的一部分,其厚度大于所述掩模的平均厚度。 另一方面,本发明提供一种制造这种孔眼掩模的方法,包括以下步骤:提供支撑表面,其中所述支撑表面包括多个下降部分; 提供燃烧器,其中所述燃烧器支撑火焰,并且其中所述火焰包括与所述燃烧器相对的火焰尖端; 将柔性薄膜的细长腹板的至少一部分抵靠支撑表面接触; 并用来自燃烧器的火焰加热膜,以在覆盖多个下降部分的区域中在膜中产生孔。