公开(公告)号：US5029475A

公开(公告)日：1991-07-09

申请号：US498120

申请日：1990-03-23

申请人： Tsuneo Kikuchi ,  Shogo Kiryu

发明人： Tsuneo Kikuchi ,  Shogo Kiryu

IPC分类号： G01N29/00 ,  A61B8/08 ,  G01N29/09 ,  G01N29/11 ,  G01N29/12 ,  G01N29/44 ,  G01S7/526

CPC分类号： G01N29/11 ,  G01N29/12 ,  G01N29/4472 ,  G01N2291/02475 ,  G01N2291/0289

摘要： Method of and apparatus for measuring a space distribution of spacings between point scatterers. An ultrasonic wave is applied to an ultrasonic scattering medium which is an aggregation of point scatterers. Ultrasonic waves, scattered from the medium, are converted into an electric signal. The shape of a power spectrum of the electric signal is determined. A fractal analysis is effected so as to determine a fractal dimension and self-similarity with respect to the power spectrum shape. A spatial distribution of a structural inhomogeneity of the scattering medium is measured in accordance with results of the fractal analysis.

摘要翻译： 用于测量点散射体间距的空间分布的方法和装置。 将超声波施加到作为点散射体的聚集体的超声波散射介质。 从介质散射的超声波被转换为电信号。 确定电信号的功率谱的形状。 进行分形分析，以确定相对于功率谱形状的分形维数和自相似度。 根据分形分析的结果测量散射介质的结构不均匀性的空间分布。

公开(公告)号：US5406201A

公开(公告)日：1995-04-11

申请号：US967723

申请日：1992-10-28

申请人： Shogo Kiryu ,  Nobuhiro Shimizu ,  Norio Chiba

发明人： Shogo Kiryu ,  Nobuhiro Shimizu ,  Norio Chiba

IPC分类号： G01R33/035 ,  H01L39/22

CPC分类号： G01R33/0356 ,  Y10S505/846

摘要： A magnetic field detecting circuit has a relaxation oscillator SQUID. An oscillator circuit includes a coil and a resistor connected together in series. The oscillator circuit produces an output signal having an oscillating frequency dependent on an applied DC bias current. A magnetic field input circuit is magnetically coupled with the coil of the oscillator circuit for applying a magnetic field. A Josephson device is connected in parallel with the oscillator circuit for converting the magnetic field to an electric signal for varying the oscillating frequency dependent on the magnetic field. The magnetic field is detected by detecting a variation of the oscillating frequency. The sensitivity of the magnetic field detecting circuit is improved by magnetically coupling an RF-SQUID with an input coil to form the magnetic field input circuit. To provide a multi-channel magnetic field detecting circuit, a plurality of oscillator circuits are connected in series with each other, and a respective Josephson device is connected in parallel with each corresponding oscillator circuit. A plurality of magnetic field input circuits are each magnetically coupled with the coil of a respective oscillator circuit, and a plurality of control lines are magnetically coupled with each respective Josephson device to vary the critical current of the Josephson device to thereby control the oscillation frequency of each oscillator circuit.

公开(公告)号：US06637008B1

公开(公告)日：2003-10-21

申请号：US09397636

申请日：1999-09-16

申请人： Tetsuya Higuchi ,  Masahiro Murakawa ,  Yuji Kasai ,  Shogo Kiryu ,  Toshio Adachi ,  Shiro Suzuki

发明人： Tetsuya Higuchi ,  Masahiro Murakawa ,  Yuji Kasai ,  Shogo Kiryu ,  Toshio Adachi ,  Shiro Suzuki

IPC分类号： G06F1750

CPC分类号： G06N3/126 ,  H03H7/19 ,  H03H7/20 ,  H03H11/0422 ,  H03H11/1291

摘要： In an electronic circuit being provided with a plurality of circuit elements and performing a specified function, a plurality of specific circuit elements related to a circuit performing the specified function out of the plurality of circuit elements are composed of circuit elements changing their element parameters according to values indicated by control signals. The electronic circuit is provided with a plurality of holding circuits for holding a plurality of control signals to be given to the plurality of specific circuit elements. The values of the plurality of control signals which these holding circuits hold are changed by external or internal apparatuses according to a probabilistic searching technique (for example genetic algorithms or simulated annealing algorithms) so that the function of the electronic circuit satisfies designated specifications.

摘要翻译： 在设置有多个电路元件并执行指定功能的电子电路中，与执行多个电路元件中的指定功能的电路相关的多个特定电路元件由电路元件组成，电路元件根据 值由控制信号表示。 电子电路设有多个保持电路，用于保持多个控制信号给予多个特定电路元件。 这些保持电路保持的多个控制信号的值根据概率搜索技术（例如遗传算法或模拟退火算法）由外部或内部装置改变，使得电子电路的功能满足指定的规格。