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    • 3. 发明授权
    • Measurement apparatus and recording medium
    • 测量装置和记录介质
    • US08179123B2
    • 2012-05-15
    • US12614728
    • 2009-11-09
    • Masayuki TomitaMasahiko MutoTakeshi Takahashi
    • Masayuki TomitaMasahiko MutoTakeshi Takahashi
    • G01R11/32
    • H04L25/03159G01R23/16H04B17/318H04L1/206
    • Provided is a measurement apparatus that measures power of a modulated signal that is modulated with a carrier signal having a prescribed frequency, comprising an AD converting section that outputs a digital modulated signal obtained by AD converting the modulated signal; a frequency converting section that converts the digital modulated signal into a frequency component signal representing a plurality of signal components at respective frequencies; a correction coefficient output section that outputs, for each frequency, a correction coefficient corresponding to a frequency characteristic of a transmission path on which the modulated signal is transmitted; a correcting section that corrects the signal component of each frequency in the frequency component signal using the correction coefficient of the corresponding frequency; and a power calculating section that calculates the power of the modulated signal based on the signal component of each frequency in the corrected frequency component signal.
    • 提供一种测量装置,其测量利用具有规定频率的载波信号进行调制的调制信号的功率,包括:AD转换部,其输出通过AD转换所获得的调制信号而获得的数字调制信号; 频率转换部分,其将数字调制信号转换成表示各个频率的多个信号分量的频率分量信号; 校正系数输出部,对于每个频率,输出与发送所述调制信号的传输路径的频率特性相对应的校正系数; 校正部,其使用相应频率的校正系数校正频率分量信号中的每个频率的信号分量; 以及功率计算部,其基于所述校正后的频率分量信号中的各频率的信号分量来计算所述调制信号的功率。
    • 10. 发明授权
    • Multi-link engine
    • 多链路引擎
    • US08100097B2
    • 2012-01-24
    • US12255336
    • 2008-10-21
    • Naoki TakahashiMasayuki TomitaKenshi UshijimaKoji HirayaHirofumi TsuchidaShunichi Aoyama
    • Naoki TakahashiMasayuki TomitaKenshi UshijimaKoji HirayaHirofumi TsuchidaShunichi Aoyama
    • F02B75/04
    • F02B75/048
    • A multi-link engine has a piston coupled to a crankshaft to move inside an engine cylinder. A piston pin connects the piston to an upper link, which is connected to a lower link by an upper link pin. A crank pin of the crankshaft rotatably supports the lower link thereon. A control link pin connects the lower link to one end of a control link, which is connected at another end to the engine block body by a control shaft. The crank pin has a center arranged on a straight line joining centers of the upper link pin and the control link pin such that an angle formed between the straight line and a horizontal axis that is perpendicular to a center axis of the cylinder and that passes through an axial center of a crank journal is the same for at top dead center and at bottom dead center.
    • 多连杆发动机具有联接到曲轴以在发动机气缸内移动的活塞。 活塞销将活塞连接到上连杆,上连杆通过上连杆销连接到下连杆。 曲轴的曲柄销可旋转地支撑其上的下连杆。 控制连杆销将下连杆连接到控制链节的另一端,控制链通过控制轴连接到发动机机体。 曲柄销的中心设置在与上连杆销和控制连杆销的中心连接的直线上,使得在直线与水平轴线之间形成的角度垂直于气缸的中心轴线并穿过 曲柄轴颈的轴心在上止点和下止点处是相同的。