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5 条记录 (耗时 0.027 秒)

    Amplifier circuit
    3.
    发明申请
    Amplifier circuit 审中-公开
    放大器电路

    公开(公告)号：US20060033577A1

    公开(公告)日：2006-02-16

    申请号：US10546183

    申请日：2003-03-26

    申请人： Hideyuki Nakamizo ,  Yoshikazu Yoshida

    发明人： Hideyuki Nakamizo ,  Yoshikazu Yoshida

    IPC分类号： H03F3/04

    CPC分类号： H03F3/189 ,  H03F1/302 ,  H03F2200/294 ,  H03F2200/372

    摘要： Bases of two grounded transistors are connected with each other to form a current mirror bias circuit. A signal is inputted to the base of one of the grounded transistors. To reduce the influence of β difference between the two grounded transistors by an amplifier to which the signal is outputted from the collector of the one of the grounded transistor, NPN transistors (Q4, Q5) are connected to the base electrodes of the two transistors and their collectors are connected to a power line (Vcc). Thus, the influence of β difference between the two grounded transistors can be reduced while the necessary power-supply voltage is maintained at a low level.

    摘要翻译： 两个接地晶体管的基极相互连接以形成电流镜偏置电路。 信号被输入到一个接地晶体管的基极。 为了通过放大器减小两个接地晶体管之间的β差的影响，信号从接地晶体管之一的集电极输出，NPN晶体管（Q 4，Q 5）连接到两个接地晶体管的基极 晶体管及其集电极连接到电源线（Vcc）。 因此，可以降低两个接地晶体管之间的β差的影响，同时将必要的电源电压维持在低电平。

    FREQUENCY SYNTHESIZER
    4.
    发明申请
    FREQUENCY SYNTHESIZER 审中-公开
    频率合成器

    公开(公告)号：US20130214836A1

    公开(公告)日：2013-08-22

    申请号：US13882827

    申请日：2011-04-19

    申请人： Kenichi Tajima ,  Hideyuki Nakamizo ,  Morishige Hieda

    发明人： Kenichi Tajima ,  Hideyuki Nakamizo ,  Morishige Hieda

    IPC分类号： H03L7/087

    CPC分类号： H03L7/087 ,  H03L7/085 ,  H03L7/113 ,  H03L7/197

    摘要： A phase difference detecting circuit 3 includes a sync detecting circuit 21 for detecting establishment of phase sync from phase difference signals D and U generated by a D-type flip-flop 13, and a switch 22 for supplying, unless the sync detecting circuit 21 detects the establishment of the phase sync, the control voltage Vt1 generated by the current-output-matching loop filter 15 to a voltage-controlled oscillator 4, and for supplying, when the sync detecting circuit 21 detects the establishment of the phase sync, the control voltage Vt2 generated by the voltage-output-matching loop filter 20 to the voltage-controlled oscillator 4.

    摘要翻译： 相位差检测电路3包括用于检测由D型触发器13产生的相位差信号D和U的相位同步建立的同步检测电路21以及用于提供的开关22，除非同步检测电路21检测到 建立相位同步，由电流输出匹配环路滤波器15产生的控制电压Vt1到压控振荡器4，并且当同步检测电路21检测到相位同步的建立时，提供控制 由电压 - 输出匹配环路滤波器20产生的电压Vt2到压控振荡器4。

    Transceiver and receiver
    5.
    发明申请
    Transceiver and receiver 审中-公开
    收发器和接收器

    公开(公告)号：US20060030272A1

    公开(公告)日：2006-02-09

    申请号：US10514240

    申请日：2004-01-21

    申请人： Hideyuki Nakamizo ,  Tatsuya Ito

    发明人： Hideyuki Nakamizo ,  Tatsuya Ito

    IPC分类号： H04B7/00 ,  H04B1/00 ,  H04Q7/20

    CPC分类号： H04W52/265 ,  H04W52/0251 ,  Y02D70/00

    摘要： A transmitter/receiver and a receiver such as a mobile phone or a transceiver capable of controlling power supply to a receiving section with a high degree of accuracy. The transmitter/receiver may include: a receiving section; a quality of service detecting section; a transmission section for generating a transmission wave; a transmission power detecting section for detecting power of the transmission wave; a controller; and a memory, for example. The memory stores values of power supply that are responsive to the quality of service of the received wave and the transmission power of the transmission wave. The controller makes reference to the values of power supply stored in the memory to control the power to be supplied to the receiving section based on the detection result at the quality of service detecting section and the detection result at the transmission power detecting section.

    摘要翻译： 发送器/接收器和诸如移动电话或收发器的接收器，其能够以高精度控制对接收部分的电力供应。 发射机/接收机可以包括：接收部分; 服务质量检测部分; 用于产生发送波的发送部分; 发送功率检测部，用于检测发送波的功率; 控制器 和记忆。 存储器存储响应于接收波的服务质量和发送波的发送功率的电源的值。 控制器参考存储在存储器中的电源的值，以根据服务质量检测部分的检测结果和发送功率检测部分的检测结果控制提供给接收部分的电力。