公开(公告)号：US20090231044A1

公开(公告)日：2009-09-17

申请号：US12294177

申请日：2007-03-23

申请人： Mineyuki Iwaida ,  Yasuo Oba ,  Takeshi Fujii

发明人： Mineyuki Iwaida ,  Yasuo Oba ,  Takeshi Fujii

IPC分类号： H03L7/099

CPC分类号： H03L1/023 ,  H03L7/099 ,  H03L7/113 ,  H03L7/18

摘要： A VCO circuit includes a temperature detector circuit, a voltage generator circuit, a switch, a resonance circuit and an oscillator. The temperature detector detects a temperature, and the voltage generator circuit generates a voltage for coarse adjustment corresponding to the detected temperature and outputs the same voltage. The switch selects one of a DC voltage for fine adjustment and the voltage for coarse adjustment. The resonance circuit includes a varactor diode having a capacitance value adjusted based on the voltage selected by the switch, capacitors and an inductor, and has a predetermined resonance frequency. The oscillator generates an oscillation signal having an oscillation frequency corresponding to the resonance frequency by using the resonance circuit and outputs the same signal.

摘要翻译： VCO电路包括温度检测器电路，电压发生器电路，开关，谐振电路和振荡器。 温度检测器检测温度，并且电压发生器电路根据检测到的温度产生用于粗调的电压并输出相同的电压。 开关选择直流电压之一进行微调和粗调电压。 谐振电路包括基于由开关选择的电压，电容器和电感器调整的电容值的变容二极管，并具有预定的谐振频率。 振荡器通过使用谐振电路产生具有与谐振频率对应的振荡频率的振荡信号，并输出相同的信号。

公开(公告)号：US07460850B2

公开(公告)日：2008-12-02

申请号：US11335693

申请日：2006-01-20

申请人： Mineyuki Iwaida

发明人： Mineyuki Iwaida

IPC分类号： H04B1/26

CPC分类号： H04B1/26 ,  H04B7/082 ,  H04B7/0822 ,  H04B7/0831 ,  H04W52/0287 ,  Y02D70/40 ,  Y02D70/444

摘要： A receiving circuit for receiving a high frequency signal is provided which includes a mixer, a local oscillator, a switch circuit, and a controller. The switch circuit switches over between first and second cases. The controller controls in the first case to turn on power supply to the local oscillator, and controls the switch circuit in the first case to output the local oscillation signal outputted from the local oscillator to the mixer, and to output the local oscillation signal through the local oscillation signal output terminal. The controller controls in the second case to turn off power supply to the local oscillator, and controls the switch circuit in the second case to output the local oscillation signal inputted through the local oscillation signal input terminal to the mixer.

摘要翻译： 提供一种用于接收高频信号的接收电路，其包括混频器，本地振荡器，开关电路和控制器。 开关电路在第一和第二壳体之间切换。 控制器在第一种情况下控制接通本地振荡器的电源，并且在第一种情况下控制开关电路以将从本地振荡器输出的本地振荡信号输出到混频器，并通过该输出端输出本地振荡信号 本地振荡信号输出端子。 在第二种情况下，控制器控制关闭对本地振荡器的电源，并且在第二种情况下控制开关电路，以将通过本地振荡信号输入端子输入的本地振荡信号输出到混频器。

公开(公告)号：US20120007680A1

公开(公告)日：2012-01-12

申请号：US13240656

申请日：2011-09-22

申请人： Katsumasa HIJIKATA ,  Mineyuki Iwaida

发明人： Katsumasa HIJIKATA ,  Mineyuki Iwaida

IPC分类号： H03G3/20 ,  H03F1/22

CPC分类号： H03G1/0088 ,  H03F1/0261 ,  H03F1/0277 ,  H03F1/223 ,  H03F1/3205 ,  H03F3/211 ,  H03F2200/18 ,  H03F2200/27 ,  H03F2200/451 ,  H03F2200/555

摘要： A variable gain amplifier includes a direct current (DC) blocking capacitor which receives an input signal at a first terminal, a variable amplifier unit, having a variable transistor size, which amplifies an output of a second terminal of the DC blocking capacitor, a load impedance unit coupled to an output of the variable amplifier unit, a bias resistor having a first terminal coupled to the second terminal of the DC blocking capacitor, a variable bias voltage generator which applies a variable bias voltage to a second terminal of the bias resistor, and a gain controller which provides control to decrease the variable bias voltage when an effective transistor size of the variable amplifier unit is controlled so as to increase, and provides control to increase the variable bias voltage when the effective transistor size of the variable amplifier unit control is controlled so as to decrease.

摘要翻译： 可变增益放大器包括：接收第一端子处的输入信号的直流（DC）阻塞电容器，具有可变晶体管尺寸的可变放大器单元，其放大隔直流电容器的第二端子的输出;负载 耦合到可变放大器单元的输出的阻抗单元，具有耦合到隔直流电容器的第二端子的第一端子的偏置电阻器，向偏置电阻器的第二端子施加可变偏置电压的可变偏置电压发生器， 以及增益控制器，当控制可变放大器单元的有效晶体管尺寸以增加时，提供控制以减小可变偏置电压，并且当可变放大器单元的有效晶体管尺寸控制时提供控制以增加可变偏置电压 被控制以减少。

公开(公告)号：US20060166638A1

公开(公告)日：2006-07-27

申请号：US11335693

申请日：2006-01-20

申请人： Mineyuki Iwaida

发明人： Mineyuki Iwaida

IPC分类号： H04B1/06 ,  H04B1/26

CPC分类号： H04B1/26 ,  H04B7/082 ,  H04B7/0822 ,  H04B7/0831 ,  H04W52/0287 ,  Y02D70/40 ,  Y02D70/444

摘要： A receiving circuit for receiving a high frequency signal is provided which includes a mixer, a local oscillator, a switch circuit, and a controller. The switch circuit switches over between first and second cases. The controller controls in the first case to turn on power supply to the local oscillator, and controls the switch circuit in the first case to output the local oscillation signal outputted from the local oscillator to the mixer, and to output the local oscillation signal through the local oscillation signal output terminal. The controller controls in the second case to turn off power supply to the local oscillator, and controls the switch circuit in the second case to output the local oscillation signal inputted through the local oscillation signal input terminal to the mixer.

摘要翻译： 提供一种用于接收高频信号的接收电路，其包括混频器，本地振荡器，开关电路和控制器。 开关电路在第一和第二壳体之间切换。 控制器在第一种情况下控制接通本地振荡器的电源，并且在第一种情况下控制开关电路以将从本地振荡器输出的本地振荡信号输出到混频器，并通过该输出端输出本地振荡信号 本地振荡信号输出端子。 在第二种情况下，控制器控制关闭本地振荡器的电源，并且在第二种情况下控制开关电路，以将通过本地振荡信号输入端子输入的本地振荡信号输出到混频器。

公开(公告)号：US08253492B2

公开(公告)日：2012-08-28

申请号：US13240656

申请日：2011-09-22

申请人： Katsumasa Hijikata ,  Mineyuki Iwaida

发明人： Katsumasa Hijikata ,  Mineyuki Iwaida

IPC分类号： H03G3/10

CPC分类号： H03G1/0088 ,  H03F1/0261 ,  H03F1/0277 ,  H03F1/223 ,  H03F1/3205 ,  H03F3/211 ,  H03F2200/18 ,  H03F2200/27 ,  H03F2200/451 ,  H03F2200/555

摘要： A variable gain amplifier includes a direct current (DC) blocking capacitor which receives an input signal at a first terminal, a variable amplifier unit, having a variable transistor size, which amplifies an output of a second terminal of the DC blocking capacitor, a load impedance unit coupled to an output of the variable amplifier unit, a bias resistor having a first terminal coupled to the second terminal of the DC blocking capacitor, a variable bias voltage generator which applies a variable bias voltage to a second terminal of the bias resistor, and a gain controller which provides control to decrease the variable bias voltage when an effective transistor size of the variable amplifier unit is controlled so as to increase, and provides control to increase the variable bias voltage when the effective transistor size of the variable amplifier unit control is controlled so as to decrease.

摘要翻译： 可变增益放大器包括：接收第一端子处的输入信号的直流（DC）阻塞电容器，具有可变晶体管尺寸的可变放大器单元，其放大隔直流电容器的第二端子的输出;负载 耦合到可变放大器单元的输出的阻抗单元，具有耦合到隔直流电容器的第二端子的第一端子的偏置电阻器，向偏置电阻器的第二端子施加可变偏置电压的可变偏置电压发生器， 以及增益控制器，当控制可变放大器单元的有效晶体管尺寸以增加时，提供控制以减小可变偏置电压，并且当可变放大器单元的有效晶体管尺寸控制时提供控制以增加可变偏置电压 被控制以减少。