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    • 71. 发明授权
    • Inspection method, inspection apparatus, and polarization method for piezoelectric element
    • 压电元件的检测方法,检验装置和极化方法
    • US07525324B2
    • 2009-04-28
    • US11856351
    • 2007-09-17
    • Takao OhnishiTomohiro YamadaTakatoshi Nehagi
    • Takao OhnishiTomohiro YamadaTakatoshi Nehagi
    • G01R29/22
    • G01R29/22B41J2/0451B41J2/04513B41J2/04541B41J2/04581B41J2/14201H01L41/257
    • A method for inspecting a piezoelectric element includes first-inspection-signal application step of applying to the piezoelectric element a first inspection signal Vp(1) having a first predetermined voltage waveform; first-characteristic-value measurement step of measuring, as a first characteristic value, an electrical characteristic value of the piezoelectric element after application of the first inspection signal; second-inspection-signal application step of applying to the piezoelectric element a second inspection signal Vp(2) having a second predetermined voltage waveform and an electrical power greater than that of the first inspection signal; second-characteristic-value measurement step of measuring, as a second characteristic value, the electrical characteristic value of the piezoelectric element after application of the second inspection signal; and anomaly determination step of determining whether or not the piezoelectric element is anomalous on the basis of a value corresponding to the difference between the measured second characteristic value and the measured first characteristic value.
    • 一种用于检查压电元件的方法包括:第一检查信号施加步骤,向所述压电元件施加具有第一预定电压波形的第一检查信号Vp(1); 第一特征值测量步骤,在施加第一检查信号之后测量压电元件的电特性值作为第一特征值; 第二检查信号施加步骤,向所述压电元件施加具有大于所述第一检查信号的第二预定电压波形和电功率的第二检查信号Vp(2) 第二特征值测量步骤,在施加第二检查信号之后测量压电元件的电特性值作为第二特征值; 以及异常判定步骤,基于与所测量的第二特征值和测量的第一特征值之间的差对应的值,确定压电元件是否异常。
    • 76. 发明申请
    • Speaker apparatus and reproducing apparatus
    • 扬声器装置和再现装置
    • US20060269092A1
    • 2006-11-30
    • US11418069
    • 2006-05-05
    • Wataru KokuboTomohiro Yamada
    • Wataru KokuboTomohiro Yamada
    • H04R1/02
    • H04R5/02
    • The present invention provides a speaker apparatus and reproducing apparatus with no limitation on their listening areas. The apparatus includes; the housing 2 substantially in the shape of a spheroid; the left speaker 5A, which is attached to the left end of the long side of the housing 2 such that the left speaker 5A faces outwardly of the housing 2; and the right speaker 5B, which is attached to the right end of the long side of the housing 2 such that the right speaker 5B faces outwardly of the housing 2. Therefore, the left speaker 5A and the right speaker 5B are approximately equivalent to a point sound source, and the sound from the left speaker 5A and the right speaker 5B smoothly radiates from the housing 2 in every direction. Thus, a listener can have good quality of sound from anywhere around the housing.
    • 本发明提供一种扬声器装置和再现装置,而不限制其收听区域。 该装置包括: 壳体2基本上为球体的形状; 左扬声器5A,其附接到壳体2的长边的左端,使得左扬声器5A面向外壳2的外侧; 右侧扬声器5A和右扬声器5B分别连接到壳体2的长边的右端,使得右扬声器5B面向壳体2的外侧。因此,左扬声器5A和右扬声器5B 大致相当于点音源,来自左扬声器5A和右扬声器5B的声音从壳体2的各个方向平滑地散射。 因此,听众可以从房屋周围的任何地方获得良好的声音质量。
    • 77. 发明申请
    • 3-Dimensional graphics data display device
    • 三维图形数据显示设备
    • US20060176295A1
    • 2006-08-10
    • US10549213
    • 2003-07-28
    • Masato TohoTsuyoshi HaradaMakito SekiTomohiro Yamada
    • Masato TohoTsuyoshi HaradaMakito SekiTomohiro Yamada
    • G06T15/00
    • G06T19/00G06T2200/24G06T2219/028G06T2219/2024
    • The objective of the invention is to provide a three-dimensional data display apparatus that easily saves an entire or a portion of the display state of the graphics, so that the data can be selected and restored according to the instructions of the user. This system comprises a three-dimensional graphics data retaining means 3 that retains three-dimensional graphics data 2; a three-dimensional display parameter retaining means 5 that retains a set of display parameters 4 for displaying the aforementioned three-dimensional graphics data 2; a rendering processing means 7 that performs a rendering processing based on the aforementioned three-dimensional graphics data 2 and the set of display parameters 4 to output two-dimensional image data 6 for displaying on the screen; a state storing means 8 for storing a copy 4′ of the set of display parameters 4 retained in the display parameter retaining means 5 and a copy 6′ of the two-dimensional image data 6 output from the rendering processing means 7; and a view switching means 9 that sets the set 4′ of the three-dimensional display parameters saved in the state storing means 8 in the display parameter retaining means 5 and that performs a re-rendering processing at the rendering processing means 7 using the set 4′ of display parameters, based on a display switch command from the user.
    • 本发明的目的是提供一种可以容易地节省图形的显示状态的全部或一部分的三维数据显示装置,从而可以根据用户的指令来选择和恢复数据。 该系统包括保持三维图形数据2的三维图形数据保持装置3; 三维显示参数保持装置5,其保持用于显示上述三维图形数据2的一组显示参数4; 执行基于上述三维图形数据2和显示参数组4的渲染处理的渲染处理装置7,以输出用于在屏幕上显示的二维图像数据6; 一个状态存储装置8,用于存储保留在显示参数保持装置5中的一组显示参数4的副本4'和从渲染处理装置7输出的二维图像数据6的副本6'; 以及视图切换装置9,其将存储在状态存储装置8中的三维显示参数的集合4'设置在显示参数保持装置5中,并且使用该集合在渲染处理装置7执行再渲染处理 4'的显示参数,基于来自用户的显示切换命令。