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    Mixer circuit having component for frequency conversion
    3.
    发明授权
    Mixer circuit having component for frequency conversion 失效
    混频器电路具有用于频率转换的组件

    公开(公告)号：US06826393B1

    公开(公告)日：2004-11-30

    申请号：US09547920

    申请日：2000-04-11

    申请人： Hiroshi Komurasaki ,  Hisayasu Sato ,  Takahiro Miki

    发明人： Hiroshi Komurasaki ,  Hisayasu Sato ,  Takahiro Miki

    IPC分类号： H04B128

    CPC分类号： H03D7/1433 ,  H03D7/1425 ,  H03D7/1458 ,  H03D7/1491 ,  H03D2200/0025 ,  H03D2200/0043

    摘要： A mixer circuit according to the present invention includes a first differential transistor pair of two transistors, a second differential transistor pair of two transistors, an impedance element connected to the first differential transistor pair, an impedance element connected to the second differential transistor pair, an inductor connected to nodes A, B, a current source connected to node A, a current source connected to node B, and a capacitor. A mixer circuit with high conversion gain and small distortion can be obtained.

    摘要翻译： 根据本发明的混频器电路包括两个晶体管的第一差分晶体管对，两个晶体管的第二差分晶体管对，连接到第一差分晶体管对的阻抗元件，连接到第二差分晶体管对的阻抗元件， 电感器连接到节点A，B，连接到节点A的电流源，连接到节点B的电流源和电容器。 可以获得具有高转换增益和小失真的混频器电路。

    Frequency voltage converter
    7.
    发明授权
    Frequency voltage converter 有权
    频率电压转换器

    公开(公告)号：US06798678B2

    公开(公告)日：2004-09-28

    申请号：US09900017

    申请日：2001-07-09

    申请人： Hiroshi Komurasaki ,  Hisayasu Sato ,  Takahiro Miki

    发明人： Hiroshi Komurasaki ,  Hisayasu Sato ,  Takahiro Miki

    IPC分类号： H02M500

    CPC分类号： H03L7/0805 ,  H03D3/06 ,  H03K5/135 ,  H03K9/06 ,  H03L7/0812 ,  H03L7/0995 ,  H04L27/14

    摘要： There is provided a frequency voltage converter comprises a first transmission line for transmitting an input signal and a second transmission line provided with a delay line circuit, a third transmission line for transmitting a reference signal and a fourth transmission line provided with a delay line circuit, a mixer circuit, and a locked loop having a control circuit for outputting the same control signal to control portions of both delay line circuits so that the amount of a delay by the delay line circuit reaches one cycle of the reference signal, thereby holding linearity with respect to the frequency of a modulated wave signal and executing frequency voltage conversion even when a center frequency is low.

    摘要翻译： 提供了一种频率电压转换器，包括用于发送输入信号的第一传输线和设置有延迟线电路的第二传输线，用于传送参考信号的第三传输线和设置有延迟线电路的第四传输线， 混频器电路和锁定环路，具有控制电路，用于将相同的控制信号输出到两个延迟线电路的控制部分，使得延迟线电路的延迟量达到参考信号的一个周期，从而保持与 相对于调制波信号的频率，即使中心频率低，也执行频率电压转换。

    Filter circuit and communication semiconductor device using the same
    8.
    发明授权
    Filter circuit and communication semiconductor device using the same 有权
    滤波电路和通信半导体器件使用相同

    公开(公告)号：US08116715B2

    公开(公告)日：2012-02-14

    申请号：US12197703

    申请日：2008-08-25

    申请人： Tomohiro Sano ,  Takaya Maruyama ,  Hisayasu Sato

    发明人： Tomohiro Sano ,  Takaya Maruyama ,  Hisayasu Sato

    IPC分类号： H04B1/10 ,  H04K3/00

    CPC分类号： H02M3/07 ,  H03H15/00

    摘要： The present invention intends to provide a filter circuit in which an area occupied by the circuit can be reduced by suppressing the scale of its circuit configuration while a predetermined vicinity disturbance wave rejection ratio is maintained and a communication semiconductor device using the same, the filter circuit filtering an analog signal and including a voltage/current conversion circuit for converting the analog signal from voltage to current, and a capacitor array which executes signal processing by charging/discharging the current converted by the voltage/current conversion circuit to/from plural capacitors, the capacitor array being so constructed that the plural capacitors are divided to plural stages so that signals averaged by the capacitor on a preceding stage are accumulated in the capacitor on a next stage successively.

    摘要翻译： 本发明旨在提供一种滤波电路，其中通过在保持预定的邻近干扰波抑制比的同时抑制其电路结构的规模并且使用该滤波电路的通信半导体器件，可以减小电路占据的面积，滤波电路 滤波模拟信号，并包括用于将模拟信号从电压转换成电流的电压/电流转换电路;以及电容器阵列，其通过从/从多个电容器转换电压/电流转换电路的电流进行充电/放电来执行信号处理， 电容器阵列被构造成使得多个电容器被分成多个级，使得在前一级上的电容器平均的信号在下一级依次累积在电容器中。

    Frequency mixer preventing degradation in linearity on amplitude of input signal
    9.
    发明授权
    Frequency mixer preventing degradation in linearity on amplitude of input signal 失效
    混频器防止输入信号幅度的线性降低

    公开(公告)号：US07382175B2

    公开(公告)日：2008-06-03

    申请号：US11083242

    申请日：2005-03-18

    申请人： Takaya Maruyama ,  Hisayasu Sato

    发明人： Takaya Maruyama ,  Hisayasu Sato

    IPC分类号： G06F7/44 ,  H04B1/26

    CPC分类号： H03D7/1441 ,  H03D7/1458 ,  H03D7/1491 ,  H03D2200/0033 ,  H03D2200/0043

    摘要： A frequency mixer includes a first N channel MOS transistor, second and third N channel MOS transistors constituting a local oscillator signal differential pair, and having substantially identical properties, a first load, and a second load. The first N channel MOS transistor receives an RF signal at its gate. A local oscillator signal is applied to the gates of the second and third N channel MOS transistors. The drain current of the second and third N channel MOS transistors is output to the drain of the first N channel MOS transistor. An amplitude-current conversion circuit receives the RF signal and provides an output current to the drain of the first N channel MOS transistor to decrease monotonously the output current with respect to the amplitude of the RF signal.

    摘要翻译： 混频器包括构成本地振荡器信号差分对的第一N沟道MOS晶体管，第二和第三N沟道MOS晶体管，并且具有基本相同的特性，第一负载和第二负载。 第一N沟道MOS晶体管在其栅极接收RF信号。 本地振荡器信号施加到第二和第三N沟道MOS晶体管的栅极。 第二和第三N沟道MOS晶体管的漏极电流输出到第一N沟道MOS晶体管的漏极。 振幅电流转换电路接收RF信号并向第一N沟道MOS晶体管的漏极提供输出电流，以相对于RF信号的幅度单调减小输出电流。

    FILTER CIRCUIT AND COMMUNICATION SEMICONDUCTOR DEVICE USING THE SAME
    10.
    发明申请
    FILTER CIRCUIT AND COMMUNICATION SEMICONDUCTOR DEVICE USING THE SAME 审中-公开
    滤波电路和通信半导体器件

    公开(公告)号：US20120092065A1

    公开(公告)日：2012-04-19

    申请号：US13335284

    申请日：2011-12-22

    申请人： Tomohiro SANO ,  Takaya Maruyama ,  Hisayasu Sato

    发明人： Tomohiro SANO ,  Takaya Maruyama ,  Hisayasu Sato

    IPC分类号： H03B1/04

    CPC分类号： H02M3/07 ,  H03H15/00

    摘要： The present invention intends to provide a filter circuit in which an area occupied by the circuit can be reduced by suppressing the scale of its circuit configuration while a predetermined vicinity disturbance wave rejection ratio is maintained and a communication semiconductor device using the same, the filter circuit filtering an analog signal and including a voltage/current conversion circuit for converting the analog signal from voltage to current, and a capacitor array which executes signal processing by charging/discharging the current converted by the voltage/current conversion circuit to/from plural capacitors, the capacitor array being so constructed that the plural capacitors are divided to plural stages so that signals averaged by the capacitor on a preceding stage are accumulated in the capacitor on a next stage successively.

    摘要翻译： 本发明旨在提供一种滤波电路，其中通过在保持预定的邻近干扰波抑制比的同时抑制其电路结构的规模并且使用该滤波电路的通信半导体器件，可以减小电路占据的面积，滤波电路 滤波模拟信号，并包括用于将模拟信号从电压转换成电流的电压/电流转换电路;以及电容器阵列，其通过从/从多个电容器转换电压/电流转换电路的电流进行充电/放电来执行信号处理， 电容器阵列被构造成使得多个电容器被分成多个级，使得在前一级上的电容器平均的信号在下一级依次累积在电容器中。