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    • 2. 发明授权
    • Filtering circuit with jammer generator
    • 带干扰发生器的滤波电路
    • US08208849B2
    • 2012-06-26
    • US12432196
    • 2009-04-29
    • Shinichi HoriBoris Murmann
    • Shinichi HoriBoris Murmann
    • H04K3/00
    • H04K3/228
    • A filtering circuit with a jammer generator cancels a jammer in wireless signals with little degradation of the signal-to-noise ratio (SNR). The filtering circuit may include a jammer generator which acquires information of period and phase of a sinusoidal jammer signal in a composite input sinusoidal signal, which includes the jammer signal and a desired signal, and outputs a pseudo sine-wave with a period and phase corresponding with the period and phase of the jammer signal acquired, and an adder which outputs a difference between the input and output signals of the jammer generator as the desired signal.
    • 具有干扰发生器的滤波电路消除无线信号中的干扰,几乎不降低信噪比(SNR)。 滤波电路可以包括干扰发生器,其在包括干扰信号和期望信号的复合输入正弦信号中获取正弦干扰信号的周期和相位的信息,并且输出具有周期和相位对应的伪正弦波 获取干扰信号的周期和相位,以及输出干扰发生器的输入和输出信号之间的差作为期望信号的加法器。
    • 3. 发明授权
    • Variable gain voltage/current converter circuit having current compensation circuit for compensating for change in DC current flowing into active element for performing voltage/current conversion
    • 具有电流补偿电路的可变增益电压/电流转换器电路,用于补偿流入有源元件的直流电流的变化,用于执行电压/电流转换
    • US07420419B2
    • 2008-09-02
    • US10581555
    • 2004-09-15
    • Shinichi Hori
    • Shinichi Hori
    • H03F3/04
    • H03F3/45179H03F2200/78H03F2203/45366H03F2203/45641H03F2203/45648H03G1/007H03H11/1243
    • A variable gain voltage/current converter circuit of the present invention has an input section active element having an input terminal, an output terminal, and a ground terminal for performing a voltage/current conversion, a potential control circuit for controlling a conversion gain of the input section active element based on a potential at the output terminal of the input section active element, an output section voltage/current converter circuit for generating a current corresponding to a voltage signal generated from the potential control circuit, and a current compensation circuit connected to the output terminal of the input section active element for generating a DC current in accordance with the amount of DC current which flows from the output terminal of the input section active element to the input section active element. The current compensation circuit compensates for a change in a DC current of the input section active element, which occurs when the conversion gain is adjusted. This minimizes fluctuations in operating points of other circuit elements.
    • 本发明的可变增益电压/电流转换器电路具有输入部分有源元件,其具有用于执行电压/电流转换的输入端子,输出端子和接地端子,用于控制电压/电流转换的转换增益的电位控制电路 输入部分有源元件,基于输入部分有源元件的输出端的电位;输出部分电压/电流转换器电路,用于产生与从电位控制电路产生的电压信号相对应的电流;以及电流补偿电路,连接到 输入部分有源元件的输出端子,用于根据从输入部分有源元件的输出端子到输入部分有源元件的DC电流量产生DC电流。 电流补偿电路补偿当转换增益被调整时发生的输入部分有源元件的直流电流的变化。 这使得其他电路元件的工作点的波动最小化。
    • 8. 发明申请
    • TRANSMITTER AND TRANSMITTING METHOD
    • 发射机和发射方法
    • US20150049842A1
    • 2015-02-19
    • US14380849
    • 2013-02-19
    • Shinichi Hori
    • Shinichi Hori
    • H04B1/04
    • H04B1/0475H03F1/02H03F3/217H03F3/24H03F2200/331H03M3/486H03M3/492H04B2001/045
    • A transmitter according to the present invention includes a level detector that detects the level value of an input signal, from among a predetermined number of level values; an upstream-side signal adjusting unit that amplifies said input signal and shifts said input signal for an offset amount based on an output signal of said level detector; a digital-sigma modulator having a quantizer that quantizes an output signal of said upstream-side signal adjusting unit with a predetermined number of bits, and a downstream-side signal adjusting unit that amplifies an output signal of said delta-sigma modulator and shifts the output signal of said delta-sigma modulator for an offset amount based on the output signal of said level detector.
    • 根据本发明的发射机包括:电平检测器,其从预定数量的电平值中检测输入信号的电平值; 上游侧信号调整单元,其基于所述电平检测器的输出信号放大所述输入信号并使所述输入信号偏移偏移量; 具有量化器,其以预定位数量化所述上游侧信号调整单元的输出信号的数字Σ调制器,以及下游侧信号调整单元,其对所述Δ-Σ调制器的输出信号进行放大, 所述Δ-Σ调制器的输出信号基于所述电平检测器的输出信号而产生偏移量。
    • 10. 发明授权
    • Filtering circuit with jammer generator
    • 带干扰发生器的滤波电路
    • US08351842B2
    • 2013-01-08
    • US13477552
    • 2012-05-22
    • Shinichi HoriBoris Murmann
    • Shinichi HoriBoris Murmann
    • H04K3/00
    • H04K3/228
    • A filtering circuit with a jammer generator cancels a jammer in wireless signals with little degradation of the signal-to-noise ratio (SNR). The filtering circuit may include a jammer generator which acquires information of period and phase of a sinusoidal jammer signal in a composite input sinusoidal signal, which includes the jammer signal and a desired signal, and outputs a pseudo sine-wave with a period and phase corresponding with the period and phase of the jammer signal acquired, and an adder which outputs a difference between the input and output signals of the jammer generator as the desired signal.
    • 具有干扰发生器的滤波电路消除无线信号中的干扰,几乎不降低信噪比(SNR)。 滤波电路可以包括干扰发生器,其在包括干扰信号和期望信号的复合输入正弦信号中获取正弦干扰信号的周期和相位的信息,并且输出具有周期和相位对应的伪正弦波 获取干扰信号的周期和相位,以及输出干扰发生器的输入和输出信号之间的差作为期望信号的加法器。