Phase difference measuring apparatus for measuring phase difference
between input signals
    43.
    发明授权
    Phase difference measuring apparatus for measuring phase difference between input signals 失效
    用于测量输入信号之间的相位差的相位差测量装置

    公开(公告)号:US5844408A

    公开(公告)日:1998-12-01

    申请号:US806161

    申请日:1997-02-25

    CPC分类号: G01F1/8431 G01F1/8436

    摘要: A phase difference measuring apparatus for precisely measuring a phase difference between two input signals having the same frequency sent from, for example, a Coriolis type mass flowmeter. A differential amplifier in the apparatus provides the sum or difference of the two input signals and a multiplexor sequentially selects and outputs to an A/D converter the two input signals and the output of the differential amplifier. The A/D converter converts the output of the multiplexor into digital data and a digital signal processor or a microcomputer calculates the phase difference between the two input signals based on the converted digital data. The apparatus may further comprise a function that an error caused by the difference of the transfer characteristics of a filter and the A/D converter is compensated using a reference signal which is selected from the two input signals.

    摘要翻译: 一种用于精确测量由例如科里奥利型质量流量计发送的具有相同频率的两个输入信号之间的相位差的相位差测量装置。 装置中的差分放大器提供两个输入信号的和或差,并且多路复用器顺序地选择并输出到A / D转换器的两个输入信号和差分放大器的输出。 A / D转换器将多路复用器的输出转换成数字数据,数字信号处理器或微型计算机基于转换的数字数据计算两个输入信号之间的相位差。 该装置还可以包括使用从两个输入信号中选择的参考信号来补偿由滤波器和A / D转换器的传送特性的差异引起的误差的功能。

    Phase difference measuring apparatus and mass flowmeter thereof
    44.
    发明授权
    Phase difference measuring apparatus and mass flowmeter thereof 失效
    相差测量装置及其质量流量计

    公开(公告)号:US5767665A

    公开(公告)日:1998-06-16

    申请号:US526706

    申请日:1995-09-12

    IPC分类号: G01F1/84 G01R25/00

    摘要: A phase difference measuring apparatus for accurately measuring the phase difference (fine time difference) of two signals with the same frequency with a reduced number of bits for A/D conversion is disclosed. In addition to output signals of an upstream side pickup and a downstream side pickup of a mass flowmeter, an output signal of the upstream side pickup or the downstream side pickup is supplied to a comparator, a PLL circuit, an antialiase filter, a sample and hold circuit, and an A/D converter. These circuits quantize these signals and send the quantized signals to a band pass filter. The band pass filter extracts a predetermined signal component and outputs it to a DFT. The DFT performs complex Fourier transformation on the input signal. Thus, the phase difference between two signals with the same frequency (such as an upstream side pickup signal and a downstream side pickup signal) can be accurately detected with a reduced number of bits for each of the A/D converters.

    摘要翻译: 公开了一种相位差测量装置,用于以A / D转换的比特数精确地测量具有相同频率的两个信号的相位差(精细时间差)。 除了质量流量计的上游侧拾取器和下游侧拾取器的输出信号之外,上游侧拾取器或下游侧拾取器的输出信号被提供给比较器,PLL电路,抗混叠滤波器,样本和 保持电路和A / D转换器。 这些电路对这些信号进行量化,并将量化的信号发送到带通滤波器。 带通滤波器提取预定的信号分量并将其输出到DF​​T。 DFT对输入信号进行复数傅里叶变换。 因此,可以以每个A / D转换器的位数减少来精确地检测具有相同频率的两个信号(诸如上游侧拾取信号和下游侧拾取信号)之间的相位差。

    Game program, game apparatus, and game control method
    50.
    发明授权
    Game program, game apparatus, and game control method 有权
    游戏程序,游戏装置和游戏控制方法

    公开(公告)号:US08487928B2

    公开(公告)日:2013-07-16

    申请号:US12412982

    申请日:2009-03-27

    摘要: A virtual camera for displaying characters to be imaged on a monitor can be readily set. In the present program, a virtual camera and imaging space are set in a virtual game space. A plurality of characters are arranged in the virtual game space. A controller determines whether or not the plurality of characters are positioned inside the imaging space. At least one option among the viewing angle of the virtual camera and the position of the virtual camera is modified. Therefore, when any single character among a plurality of characters is positioned outside the imaging space, the character positioned outside the imaging space is positioned inside the imaging space. The plurality of characters are displayed on the image display unit.

    摘要翻译: 可以容易地设置用于显示要在监视器上成像的字符的虚拟相机。 在本程序中,将虚拟摄像机和成像空间设置在虚拟游戏空间中。 多个字符被布置在虚拟游戏空间中。 控制器确定多个字符是否位于成像空间内。 在虚拟摄像机的视角和虚拟摄像机的位置之间的至少一个选项被修改。 因此,当多个字符中的任何单个字符位于成像空间的外部时,位于成像空间外部的字符位于成像空间内。 多个字符显示在图像显示单元上。