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    • 5. 发明授权
    • Numerical division of two arrays by optical processing
    • 通过光学处理对两个阵列进行数值分割
    • US4686647A
    • 1987-08-11
    • US645573
    • 1984-08-29
    • Bernard H. SofferUzi EfronEmanuel Marom
    • Bernard H. SofferUzi EfronEmanuel Marom
    • G06E3/00G06G9/00
    • G06E3/005
    • Apparatus for performing a division of a dividend intensity array by a divisor intensity array on a pixel-by-pixel basis, to yield a quotient intensity array, wherein optical feedback principles are utilized in conjunction with two spatial radiation modulators, so that analog division is achieved. Specifically, a fraction of the output array of a first spatial radiation modulator is provided as the readout array to a second spatial radiation modulator, whose input is the divisor intensity array. The output array of the second image converter is then added to the dividend array and provided as the input to the first spatial radiation modulator, whereupon the output of the first spatial radiation modulator is the pixel-by-pixel quotient array resulting from division of the dividend array by the divisor array.
    • 用于通过除数强度阵列逐像素地执行除数强度阵列的划分的装置,以产生商强度阵列,其中光学反馈原理与两个空间辐射调制器结合使用,使得模拟除法 实现了 具体地,第一空间辐射调制器的输出阵列的一部分作为读出阵列被提供给第二空间辐射调制器,其第二空间辐射调制器的输入是除数强度阵列。 然后将第二图像转换器的输出阵列添加到除数阵列,并作为第一空间辐射调制器的输入提供,由此第一空间辐射调制器的输出是逐个像素商数组, 除数数组的除数数组。
    • 6. 发明授权
    • Method and apparatus for ultra high frequency spectrum analysis
    • 用于超高频谱分析的方法和装置
    • US4871232A
    • 1989-10-03
    • US130032
    • 1987-12-07
    • Jan GrinbergEmanuel MaromBernard H. SofferThomas R. O'MearaAdrian E. Popa
    • Jan GrinbergEmanuel MaromBernard H. SofferThomas R. O'MearaAdrian E. Popa
    • G01R23/17
    • G01R23/17
    • A high frequency spectral analysis system and method operates by modulating an optical beam with a high frequency signal to be analyzed, and sampling the beam simultaneously at periodically spaced locations along its length. The sampled portions are then focused to a spectral mapping. In the preferred embodiment a beam is directed in a zigzag pattern through a plate, one surface of which is totally reflective and the opposite surface of which is partially reflective. Periodic parallel samples are obtained from the minor portions of the beam which are transmitted out of the plate through the partially reflective surface. The totally reflective surface is preferably formed as a series of cylindrical surfaces which focus the beam to small spots at the partially reflective surface, thereby permitting a higher spatial density of samples without overlapping. The plate thickness is selected so that the beam is sampled at the Nyquist rate for the highest frequency contained in the signal of interest.
    • 高频谱分析系统和方法通过用待分析的高频信号调制光束并且沿其长度在周期性间隔的位置同时采样光束来操作。 然后将采样的部分聚焦到光谱映射。 在优选实施例中,光束以锯齿形图案通过板,其一个表面是完全反射的,其相对表面是部分反射的。 从束的少部分获得周期性的平行样品,其通过部分反射表面从板上传出。 全反射表面优选地形成为将光束聚焦在部分反射表面处的小斑点的一系列圆柱形表面,从而允许更高的样品空间密度而不重叠。 选择板厚度使得以包含在感兴趣信号中的最高频率的奈奎斯特速率采样波束。