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    • 4. 发明申请
    • FMCW SIGNAL GENERATION CIRCUIT
    • FMCW信号发生电路
    • US20100245160A1
    • 2010-09-30
    • US12557853
    • 2009-09-11
    • Hiroki SakuraiHiroaki IshiharaToshiya Mitomo
    • Hiroki SakuraiHiroaki IshiharaToshiya Mitomo
    • G01S13/00
    • G01S7/4008G01S13/345H03C3/08H03C3/09
    • An FMCW signal generation circuit includes: an oscillator configured to oscillate in an oscillation frequency that is variable in accordance with a control signal being input thereto and output an FMCW signal having the oscillation frequency; a phase detector configured to detect a phase of the FMCW signal; a first differentiator configured to obtain a frequency by differentiating the phase detected by the phase detector; a second differentiator configured to obtain a frequency variation rate by differentiating the frequency obtained by the first differentiator; a subtractor configured to calculate an error between a set frequency variation rate that is set at a given value and the frequency variation rate obtained by the second differentiator; and an integrator configured to generate the control signal for controlling the oscillation frequency of the oscillator by integrating the error calculated by the subtractor.
    • FMCW信号发生电路包括:振荡器,被配置为以根据输入的控制信号可变的振荡频率振荡,并输出具有振荡频率的FMCW信号; 相位检测器,被配置为检测所述FMCW信号的相位; 第一微分器,被配置为通过对由相位检测器检测到的相位进行微分来获得频率; 第二微分器,被配置为通过区分由第一微分器获得的频率来获得频率变化率; 减法器,被配置为计算设定在给定值的设定频率变化率与由所述第二微分器获得的频率变化率之间的误差; 以及积分器,被配置为通过对由减法器计算的误差进行积分来产生用于控制振荡器的振荡频率的控制信号。
    • 8. 发明授权
    • Amplifier and radio
    • 放大器和收音机
    • US07876162B2
    • 2011-01-25
    • US12558807
    • 2009-09-14
    • Kohei OnizukaMasahiro HosoyaHiroaki IshiharaShoji OtakaOsamu Watanabe
    • Kohei OnizukaMasahiro HosoyaHiroaki IshiharaShoji OtakaOsamu Watanabe
    • H03F3/14
    • H03F3/602H03F3/26H03F2200/537H03F2200/541H03F2200/543
    • An amplifier includes: a substrate; first to fourth amplifying units arranged on the substrate and each having first and second terminals, and each amplifying first and second signals to generate first and second amplified signals; a first inductive line arranged on the substrate, connecting the first terminal of the first amplifying unit and the first terminal of the second amplifying unit, and having a linear portion and a bending portion; a second inductive line arranged on the substrate, connecting the second terminal of the second amplifying unit and the first terminal of the third amplifying unit, and having a linear portion and a bending portion; a third inductive line arranged on the substrate, connecting the second terminal of the third amplifying unit and the first terminal of the fourth amplifying unit, and having a linear portion and a bending portion; a fourth inductive line arranged on the substrate, connecting the second terminal of the fourth amplifying unit and the second terminal of the first amplifying unit, and having a linear portion and a bending portion; and a fifth inductive line which establishes magnetic field coupling with the first to fourth inductive lines, and has third and fourth terminals, combines the plurality of the first amplified signals amplified to output the first combined signal from the third terminal, and combines the plurality of the second amplified signals to output the second combined signal from the fourth terminal.
    • 放大器包括:基板; 布置在基板上的第一至第四放大单元,每个具有第一和第二端子,并且每个放大第一和第二信号以产生第一和第二放大信号; 布置在所述基板上的第一感应线,连接所述第一放大单元的第一端子和所述第二放大单元的所述第一端子,并且具有直线部分和弯曲部分; 布置在基板上的第二感应线,连接第二放大单元的第二端子和第三放大单元的第一端子,并具有直线部分和弯曲部分; 布置在基板上的第三感应线,连接第三放大单元的第二端子和第四放大单元的第一端子,并具有直线部分和弯曲部分; 布置在基板上的第四感应线,连接第四放大单元的第二端子和第一放大单元的第二端子,并具有直线部分和弯曲部分; 以及第五感应线,其与第一至第四感应线建立磁场耦合,并且具有第三和第四端子,将被放大的多个第一放大信号组合以输出来自第三端子的第一组合信号,并将多个 第二放大信号以从第四终端输出第二组合信号。