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    • 32. 发明授权
    • Parameter adjustment device
    • 参数调整装置
    • US07636706B2
    • 2009-12-22
    • US10584350
    • 2004-12-22
    • Masahiro MurakawaKeiichi Ito
    • Masahiro MurakawaKeiichi Ito
    • G06F17/30G06G7/00G06F15/16
    • G06N3/126Y10S707/99932Y10S707/99933Y10S707/99934Y10S707/99935Y10S707/99936
    • A parameter adjusting device configured to adjust a great number of parameters of a physical model by a genetic algorithm using multiple processing units within a short time. A parameter adjusting device comprises a processing assignment means wherein a part of a multiple processing means is assigned to search processing by a local search method, and assigns the processing of the local search to a low-performance processor. Also, the parameter adjusting device collects an interim result of the search by a genetic algorithm, and uses it for the search processing by the local search method. Through parallelization and efficiency of an adjusting processing by effectively utilizing the resource in the system, the parameter adjusting device can determine the group of the most appropriate parameters within a short time.
    • 参数调整装置,被配置为通过在短时间内使用多个处理单元的遗传算法来调整物理模型的大量参数。 参数调整装置包括处理分配装置,其中通过本地搜索方法将多个处理装置的一部分分配给搜索处理,并且将本地搜索的处理分配给低性能处理器。 此外,参数调整装置通过遗传算法收集搜索的中期结果,并将其用于通过本地搜索方法的搜索处理。 通过有效利用系统中的资源,通过调整处理的并行化和效率,参数调整装置可以在短时间内确定最适合的参数组。
    • 33. 发明申请
    • Parameter adjusting device and parameter adjusting means
    • 参数调整装置和参数调整装置
    • US20070198103A1
    • 2007-08-23
    • US10594842
    • 2005-03-29
    • Masahiro MurakawaKeiichi ItoMichiko Miura
    • Masahiro MurakawaKeiichi ItoMichiko Miura
    • G05B13/02
    • G06N3/126G06F17/5045G06F2217/08
    • A parameter adjusting device and a parameter adjusting method configured to adjust a great number of parameters used for a circuit design model of a semiconductor element such as a transistor within a short time. A parameter adjusting device adapts a circuit design model wherein a formula for analysis is derived based on a surface potential such as, for example, the HiSIM, as the circuit design model of a semiconductor element; defines a chromosome wherein a respective great number of parameters of the model are genes; and optimizes the parameter based on property measured data of a tested element, using a genetic algorithm. Parameter adjustment comprises a first step adjusting the parameters which determine the structure of the semiconductor element based on the property measured data of a long channel group; and a second step adjusting nonadjusted parameters based on the property measured data of various lengths of channels with reference to a result of the first step. Adjustment of the optimum parameters within a short time and with a high degree of accuracy, which was conventionally difficult, can be performed.
    • 参数调整装置和参数调整方法,其被配置为在短时间内调整用于诸如晶体管的半导体元件的电路设计模型的大量参数。 参数调整装置适应电路设计模型,其中基于诸如例如HiSIM的表面电位导出用于分析的公式作为半导体元件的电路设计模型; 定义了染色体,其中模型的相应大量参数是基因; 并使用遗传算法优化基于测试元素的属性测量数据的参数。 参数调整包括:第一步骤,基于长通道组的特性测量数据调整确定半导体元件的结构的参数; 以及参照第一步骤的结果,基于各种信道长度的属性测量数据来调整非调整参数的第二步骤。 可以在短时间内以高精度调节最佳参数,这在传统上是困难的。
    • 39. 发明授权
    • Depolarization element and projection type display device
    • 去极化元件和投影型显示装置
    • US08696134B2
    • 2014-04-15
    • US13415162
    • 2012-03-08
    • Masahiro MurakawaAtsushi Koyanagi
    • Masahiro MurakawaAtsushi Koyanagi
    • G02B5/30G03B21/14
    • G02B5/3008G02B27/48
    • A depolarization element includes high depolarization for light beams having coherence and plural wavelengths and also provides a projection type display device capable of reducing speckle noise. Unit regions, each formed of m regions (m≧4) having different phase differences generated for incident light, are disposed, and two regions extracted from the m regions have at least one combination of regions being different in area. When plural light beams having different wavelengths are incident, the composition of the Stokes vectors of the light beams emitted from the respective m regions is made nearly zero by setting the areas of the respective m regions and the generated phase differences, whereby the light beams having coherence and plural wavelengths can be converted so as to have the polarization state of natural light.
    • 去极化元件包括具有相干和多个波长的光束的高去极化,并且还提供能够减少斑点噪声的投影型显示装置。 设置由对入射光产生不同相位差的m个区域(m≥4)形成的单位区域,从m个区域提取的两个区域具有面积不同的区域的至少一个组合。 当具有不同波长的多个光束入射时,通过设定各个m区域的面积和所产生的相位差,使从各个m区域发射的光束的斯托克斯矢量的组成几乎为零,从而具有 可以将相干和多个波长转换为具有自然光的偏振状态。