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    Phase-locked loop circuit and radio communication apparatus using the same
    1.
    发明授权
    Phase-locked loop circuit and radio communication apparatus using the same 有权
    锁相环电路和使用其的无线电通信装置

    公开(公告)号：US07266171B2

    公开(公告)日：2007-09-04

    申请号：US10641136

    申请日：2003-08-15

    申请人： Taizo Yamawaki ,  Masaru Kokubo ,  Tomio Furuya ,  Kazuo Watanabe ,  Julian Hildersley

    发明人： Taizo Yamawaki ,  Masaru Kokubo ,  Tomio Furuya ,  Kazuo Watanabe ,  Julian Hildersley

    IPC分类号： H03D3/24 ,  H03L7/06 ,  H02M1/02

    CPC分类号： H03L7/085 ,  H03L7/10 ,  H03L7/183 ,  H03L2207/12 ,  H04B1/403 ,  H04B1/408

    摘要： A communication apparatus includes a phase-locked loop circuit which receives a first signal having a frequency and converts it into an output signal having a transmission frequency and includes a current output type phase comparator which converts a phase difference between the first signal and a second signal into a current signal, a low pass filter which filters the current signal of the current output type phase comparator to produce an output signal a voltage controlled oscillator which produces an output signal having a transmission frequency corresponding to the output signal of the low pass filter the output signal of the voltage controlled oscillator constituting the output signal of the phase-locked loop circuit, a frequency converter which frequency-converts the output signal of the voltage controlled oscillator to produce the second signal, and a current source which supplies a current to an input of the low pass filter.

    摘要翻译： 通信装置包括锁相环电路，其接收具有频率的第一信号并将其转换为具有发送频率的输出信号，并且包括电流输出型相位比较器，其转换第一信号和第二信号之间的相位差 将低通滤波器滤波电流输出型相位比较器的电流信号以产生输出信号，该压控振荡器产生具有与低通滤波器的输出信号对应的发送频率的输出信号， 构成锁相环电路的输出信号的压控振荡器的输出信号，对压控振荡器的输出信号进行频率转换以产生第二信号的频率转换器，以及向 输入低通滤波器。

    Phase-locked loop circuit and radio communication apparatus using the same
    3.
    发明授权
    Phase-locked loop circuit and radio communication apparatus using the same 失效
    锁相环电路和使用其的无线电通信装置

    公开(公告)号：US6163585A

    公开(公告)日：2000-12-19

    申请号：US16302

    申请日：1998-01-30

    申请人： Taizo Yamawaki ,  Masaru Kokubo ,  Tomio Furuya ,  Kazuo Watanabe ,  Julian Hildersley

    发明人： Taizo Yamawaki ,  Masaru Kokubo ,  Tomio Furuya ,  Kazuo Watanabe ,  Julian Hildersley

    IPC分类号： H03L7/085 ,  H03L7/093 ,  H03L7/10 ,  H03L7/183 ,  H03L7/185 ,  H04B1/3822 ,  H04B1/40 ,  H04L7/00 ,  H04L5/16

    CPC分类号： H03L7/085 ,  H03L7/10 ,  H03L7/183 ,  H03L2207/12 ,  H04B1/403 ,  H04B1/408

    摘要： A phase-locked loop circuit includes a current output type phase comparator for converting a phase difference between a first signal and a second signal into a current signal to be outputted, a low pass filter for filtering the current signal of the current output type phase comparator to produce an output signal, a voltage controlled oscillator for producing an output signal having a frequency corresponding to the output signal of the low pass filter, a current source for supplying a current to an input of the low pass filter, a reset switch for applying to the voltage controlled oscillator a reset voltage for canceling a phase-locked state of the phase-locked loop, and a frequency converter for frequency-converting the output signal of the voltage controlled oscillator to produce the second signal.

    摘要翻译： 锁相环电路包括电流输出型相位比较器，用于将第一信号和第二信号之间的相位差转换为要输出的电流信号;低通滤波器，用于对电流输出型相位比较器 产生输出信号的压控振荡器，用于产生具有与低通滤波器的输出信号对应的频率的输出信号的压控振荡器，用于向低通滤波器的输入端提供电流的电流源， 向压控振荡器施加用于消除锁相环的锁相状态的复位电压;以及频率变换器，用于对压控振荡器的输出信号进行频率转换以产生第二信号。

    Phase-locked loop circuit and radio communication apparatus using the same
    4.
    发明授权
    Phase-locked loop circuit and radio communication apparatus using the same 有权
    锁相环电路和使用其的无线电通信装置

    公开(公告)号：US06324219B2

    公开(公告)日：2001-11-27

    申请号：US09729721

    申请日：2000-12-06

    申请人： Taizo Yamawaki ,  Masaru Kokubo ,  Tomio Furuya ,  Kazuo Watanabe ,  Julian Hildersley

    发明人： Taizo Yamawaki ,  Masaru Kokubo ,  Tomio Furuya ,  Kazuo Watanabe ,  Julian Hildersley

    IPC分类号： H04L2704

    CPC分类号： H03L7/085 ,  H03L7/10 ,  H03L7/183 ,  H03L2207/12 ,  H04B1/403 ,  H04B1/408

    摘要： A communication apparatus includes a phase-locked loop circuit which receives a first signal having a frequency and converts the first signal into an output signal having a transmission frequency. The phase-locked loop circuit includes a current output type phase comparator which converts a phase difference between the first signal and a second signal into a current signal, a low pass filter which filters the current signal of the current output type phase comparator to produce an output signal, a voltage controlled oscillator which produces an output signal having a transmission frequency corresponding to the output signal of the low pass filter, the output signal of the voltage controlled oscillator constituting the output signal of the phase-locked loop circuit, and a frequency converter which frequency-converts the output signal of the voltage controlled oscillator to produce the second signal.

    摘要翻译： 通信装置包括锁相环电路，其接收具有频率的第一信号，并将第一信号转换为具有发送频率的输出信号。 锁相环电路包括电流输出型相位比较器，其将第一信号和第二信号之间的相位差转换为电流信号;低通滤波器，其对当前输出型相位比较器的电流信号进行滤波， 输出信号，产生具有与低通滤波器的输出信号对应的发送频率的输出信号的压控振荡器，构成锁相环电路的输出信号的压控振荡器的输出信号，以及频率 转换器，其对压控振荡器的输出信号进行频率转换以产生第二信号。

    Radio frequency power amplifying module with hetero junction bipolar transistor
    5.
    发明授权
    Radio frequency power amplifying module with hetero junction bipolar transistor 有权
    具有异质结双极晶体管的射频功率放大模块

    公开(公告)号：US07486142B2

    公开(公告)日：2009-02-03

    申请号：US11618197

    申请日：2006-12-29

    申请人： Hirokazu Tsurumaki ,  Hiroyuki Nagai ,  Tomio Furuya ,  Yoshiaki Harasawa ,  Makoto Tabei

    发明人： Hirokazu Tsurumaki ,  Hiroyuki Nagai ,  Tomio Furuya ,  Yoshiaki Harasawa ,  Makoto Tabei

    IPC分类号： H03G3/30

    CPC分类号： H03G3/3047 ,  H03F1/302 ,  H03F3/195 ,  H03F3/343 ,  H03F2200/447 ,  H03F2200/451

    摘要： The present invention is directed to compensate electric properties of an RF power module depending on changes with time, temperature dependency, variations, and the like of grounded emitter current amplification factor of an HBT. A compound semiconductor integrated circuit supplies reference current of a reference HBT depending on hFE of an HBT to an input terminal of a first current mirror of a bias circuit of a silicon semiconductor integrated circuit. The base of an output HBT of the compound semiconductor integrated circuit is biased with bias current which increases in response to decrease in hFE of the HBT from an output of the first current mirror of the silicon semiconductor integrated circuit.

    摘要翻译： 本发明旨在根据HBT的接地发射极电流放大因子随时间，温度依赖性，变化等的变化来补偿RF功率模块的电性能。 化合物半导体集成电路将HBT的hFE的参考电流提供给硅半导体集成电路的偏置电路的第一电流镜的输入端。 化合物半导体集成电路的输出HBT的基极由偏置电流偏置，该偏置电流响应于HBT的hFE从硅半导体集成电路的第一电流镜的输出的减小而增加。

    High frequency power amplifier circuit device
    7.
    发明申请
    High frequency power amplifier circuit device 有权
    高频功率放大器电路设备

    公开(公告)号：US20060197600A1

    公开(公告)日：2006-09-07

    申请号：US11414337

    申请日：2006-05-01

    申请人： Yoshikuni Matsunaga ,  Toshihiko Shimizu ,  Tomio Furuya ,  Nobuhiro Matsudaira ,  Koichi Matsushita

    发明人： Yoshikuni Matsunaga ,  Toshihiko Shimizu ,  Tomio Furuya ,  Nobuhiro Matsudaira ,  Koichi Matsushita

    IPC分类号： H03G3/10

    CPC分类号： H03F1/0261 ,  H03F2200/465 ,  H03G1/0017 ,  H03G3/3042 ,  H03G3/3047

    摘要： A multistage high frequency power amplifier-circuit device has a plurality of semiconductor amplification elements connected in a cascade. The circuit device is provided with a bias control circuit used to control the bias voltage or bias current of the output semiconductor amplification element in each stage so as to reduce the variation of the output power with respect to the power control signal voltage in an area around the threshold voltage of the semiconductor amplification elements. This realizes a high frequency power amplifier circuit device provided with excellent controllability of the output power and high efficiency at the time of low power output realized with use of such a control voltage as a power control signal.

    摘要翻译： 多级高频功率放大器电路装置具有串联连接的多个半导体放大元件。 电路装置设置有偏置控制电路，用于控制各级输出半导体放大元件的偏置电压或偏置电流，以便减少相对于周围区域内的功率控制信号电压的输出功率的变化 半导体放大元件的阈值电压。 这实现了在使用诸如功率控制信号的这种控制电压实现的低功率输出时，输出功率具有优异的可控制性和高效率的高频功率放大器电路器件。

    High frequency power amplifier circuit
    8.
    发明授权
    High frequency power amplifier circuit 有权
    高频功放电路

    公开(公告)号：US06967535B2

    公开(公告)日：2005-11-22

    申请号：US11079113

    申请日：2005-03-15

    申请人： Kouichi Matsushita ,  Tomio Furuya ,  Fuminori Morisawa ,  Takayuki Tsutsui ,  Nobuhiro Matsudaira

    发明人： Kouichi Matsushita ,  Tomio Furuya ,  Fuminori Morisawa ,  Takayuki Tsutsui ,  Nobuhiro Matsudaira

    IPC分类号： H03F3/68 ,  H03F1/30 ,  H03F3/24 ,  H03G3/30 ,  H03G3/10

    CPC分类号： H03G3/3042 ,  H03F1/301

    摘要： A module including a bias circuit that generates gate bias voltages by resistance dividers creates a problem in that the values of the resistances constituting the bias circuit must be finely adjusted, and accordingly extra trimming tasks are required. The present invention provides current generators that generate currents varying with desired characteristics responsive to a control voltage, independent of variations in transistor threshold voltages, connects output resistors to parallel transistors in respective stages to form current mirror circuits, and supplies currents from the current generators thereto to drive them, instead of supplying dividing voltages.

    摘要翻译： 包括通过电阻分配器产生栅极偏置电压的偏置电路的模块产生一个问题，即构成偏置电路的电阻的值必须被微调，因此需要额外的修整任务。 本发明提供电流发生器，其响应于控制电压而产生电流变化，而不管晶体管阈值电压的变化，将输出电阻连接到各级的并联晶体管，以形成电流镜电路，并将电流从电流发生器提供给 驱动它们，而不是提供分压。