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1. 发明授权

US07460850B2 High frequency receiving circuit provided with controller for turning on and off power supply to local oscillator 失效
标题翻译：高频接收电路配有控制器，用于接通和断开本地振荡器的电源
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。

2. 发明申请

US20080197897A1 PLL CIRCUIT AND WIRELESS DEVICE 有权
标题翻译： PLL电路和无线设备
公开(公告)号：US20080197897A1
公开(公告)日：2008-08-21
申请号：US12030480
申请日：2008-02-13
申请人： Mineyuki IWAIDA , Takeshi FUJII
发明人： Mineyuki IWAIDA , Takeshi FUJII
IPC分类号： H03L7/087 , H04B1/40
CPC分类号： H03L7/087 , H03L7/085 , H03L7/10 , H03L7/107 , H03L7/193
摘要： A PLL circuit according to the present invention includes: a voltage controlled oscillator 10; a frequency divider 30 that divides an oscillation signal of the voltage controlled oscillator 10 and outputs a divided oscillation signal; a first phase comparator 40 that outputs a phase difference between the divided oscillation signal of the frequency divider 30 and a reference signal; a charge pump 60 that converts the output signal of the first phase comparator 40 into a signal for controlling the voltage controlled oscillator 10; a filter that allows a DC component of the output signal of the charge pump 60 to pass therethrough and outputs a voltage to the voltage controlled oscillator 10; a second phase comparator 90 that averages the phase difference between the divided oscillation signal of the frequency divider 30 and the reference signal with respect to time; and a current control circuit 100 that controls an operating current of the frequency divider 30 based on the phase difference averaged with respect to time by the second phase comparator 90. With this configuration, it is possible to provide a PLL circuit that achieves low power consumption and covers a wide range of oscillation frequencies.
摘要翻译：根据本发明的PLL电路包括：压控振荡器10; 分压器30，其分压压控振荡器10的振荡信号，并输出分频振荡信号; 第一相位比较器40，输出分频器30的分频振荡信号与参考信号之间的相位差; 将第一相位比较器40的输出信号转换成用于控制压控振荡器10的信号的电荷泵60; 使得电荷泵60的输出信号的直流分量通过的滤波器，并将电压输出到压控振荡器10; 第二相位比较器90，其对分频器30的分频振荡信号和参考信号之间的时间相位差进行平均; 以及电流控制电路100，其基于由第二相位比较器90相对于时间平均的相位差来控制分频器30的工作电流。利用该配置，可以提供实现低功耗的PLL电路并且覆盖宽范围的振荡频率。

3. 发明申请

US20120007680A1 VARIABLE GAIN AMPLIFIER 失效
标题翻译：可变增益放大器
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。

4. 发明授权

US07545187B2 PLL circuit and wireless device 有权
标题翻译： PLL电路和无线设备
公开(公告)号：US07545187B2
公开(公告)日：2009-06-09
申请号：US12030480
申请日：2008-02-13
申请人： Mineyuki Iwaida , Takeshi Fujii
发明人： Mineyuki Iwaida , Takeshi Fujii
IPC分类号： H03L7/06
CPC分类号： H03L7/087 , H03L7/085 , H03L7/10 , H03L7/107 , H03L7/193
摘要： A PLL circuit according to the present invention includes: a voltage controlled oscillator 10; a frequency divider 30 that divides an oscillation signal of the voltage controlled oscillator 10 and outputs a divided oscillation signal; a first phase comparator 40 that outputs a phase difference between the divided oscillation signal of the frequency divider 30 and a reference signal; a charge pump 60 that converts the output signal of the first phase comparator 40 into a signal for controlling the voltage controlled oscillator 10; a filter that allows a DC component of the output signal of the charge pump 60 to pass therethrough and outputs a voltage to the voltage controlled oscillator 10; a second phase comparator 90 that averages the phase difference between the divided oscillation signal of the frequency divider 30 and the reference signal with respect to time; and a current control circuit 100 that controls an operating current of the frequency divider 30 based on the phase difference averaged with respect to time by the second phase comparator 90. With this configuration, it is possible to provide a PLL circuit that achieves low power consumption and covers a wide range of oscillation frequencies.
摘要翻译：根据本发明的PLL电路包括：压控振荡器10; 分压器30，其分压压控振荡器10的振荡信号，并输出分频振荡信号; 第一相位比较器40，输出分频器30的分频振荡信号与参考信号之间的相位差; 将第一相位比较器40的输出信号转换成用于控制压控振荡器10的信号的电荷泵60; 使得电荷泵60的输出信号的直流分量通过的滤波器，并将电压输出到压控振荡器10; 第二相位比较器90，其对分频器30的分频振荡信号和参考信号之间的时间相位差进行平均; 以及电流控制电路100，其基于由第二相位比较器90相对于时间平均的相位差来控制分频器30的工作电流。利用该配置，可以提供实现低功耗的PLL电路并且覆盖宽范围的振荡频率。

5. 发明申请

US20060166638A1 High frequency receiving circuit provided with controller for turning on and off power supply to local oscillator 失效
标题翻译：高频接收电路配有控制器，用于接通和断开本地振荡器的电源
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。

6. 发明授权

US08253492B2 Variable gain amplifier 失效
标题翻译：可变增益放大器
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。

7. 发明授权

US08244197B2 Receiving device and electronic equipment using the same 失效
标题翻译：接收设备和使用该设备的电子设备
公开(公告)号：US08244197B2
公开(公告)日：2012-08-14
申请号：US12304084
申请日：2008-03-27
申请人： Takeshi Fujii , Hiroaki Ozeki , Mineyuki Iwaida
发明人： Takeshi Fujii , Hiroaki Ozeki , Mineyuki Iwaida
IPC分类号： H04B1/10
CPC分类号： H03H7/20 , H04B1/28
摘要： In an image rejection mixer, when a signal in the first radio frequency band is inputted to an input terminal, the first mixer and the second mixer convert the input signal in the first radio frequency band to a signal in the first intermediate frequency band by using the first local signal from a local signal oscillator, and a filter circuit attenuates an image interfering signal existing in the first intermediate frequency band by means of the first attenuation band. Also, when a signal in the second radio frequency band is inputted to the input terminal, the first mixer and the second mixer convert the input signal in the second radio frequency band to a signal in the second intermediate frequency band by using the second local signal from the local signal oscillator, and the filter circuit attenuates an image interfering signal existing in the second intermediate frequency band by means of the second attenuation band that is narrower than the first attenuation band.
摘要翻译：在图像抑制混频器中，当第一无线电频带中的信号被输入到输入端时，第一混频器和第二混频器通过使用第一混频器和第二混频器将第一无线电频带中的输入信号转换为第一中频带中的信号来自本地信号振荡器的第一本地信号，以及滤波器电路借助于第一衰减频带衰减存在于第一中频带中的图像干扰信号。此外，当第二无线电频带中的信号被输入到输入端时，第一混频器和第二混频器通过使用第二本地信号将第二无线电频带中的输入信号转换为第二中频带中的信号并且滤波器电路通过比第一衰减频带窄的第二衰减频带衰减存在于第二中频带中的图像干扰信号。

8. 发明授权

US07457600B2 VCO device 失效
标题翻译： VCO器件
公开(公告)号：US07457600B2
公开(公告)日：2008-11-25
申请号：US10526472
申请日：2004-06-24
申请人： Takeshi Fujii , Kenji Adachi , Hiroaki Ozeki , Mineyuki Iwaida
发明人： Takeshi Fujii , Kenji Adachi , Hiroaki Ozeki , Mineyuki Iwaida
IPC分类号： H04B7/00
CPC分类号： H03L7/099 , H03L7/10 , H03L2207/06
摘要： VCO (voltage-controlled oscillator) device used for a radio unit such as a television broadcast receiver. A VCO device oscillating in a wide band of oscillation frequency and capable of realizing low power consumption is provided. VCO circuit group 4 oscillates signals of frequencies corresponding to control voltage Vt applied to frequency control voltage terminal 8. LO signal selecting means 3 selects a required output signal from VCO circuit group 4. PLL 6 frequency-divides local signal fvco selected by LO signal selecting means 3, compares a phase thereof with a phase of a reference signal and outputs a signal converted from a phase difference. Loop filter 7 smoothes the output signal from PLL 6, outputs control voltage Vt that is a frequency control voltage and outputs the local-signal selected by signal selecting means 3 to high frequency signal processing means 1.
摘要翻译：用于诸如电视广播接收机的无线电单元的VCO（压控振荡器）装置。提供了在宽频带振荡频率下振荡并且能够实现低功耗的VCO器件。 VCO电路组4振荡对应于施加到频率控制电压端子8的控制电压Vt的频率的信号。 LO信号选择装置3从VCO电路组4中选择所需的输出信号。 PLL 6对由LO信号选择装置3选择的本地信号fvco进行分频，将其相位与参考信号的相位进行比较，并输出从相位差转换的信号。环路滤波器7平滑来自PLL 6的输出信号，输出作为频率控制电压的控制电压Vt，并将由信号选择装置3选择的局部信号输出到高频信号处理装置1。

9. 发明申请

US20060128335A1 Vco device 失效
标题翻译： Vco设备
公开(公告)号：US20060128335A1
公开(公告)日：2006-06-15
申请号：US10526472
申请日：2004-06-24
申请人： Takeshi Fujii , Kenji Adachi , Hiroaki Ozeki , Mineyuki Iwaida
发明人： Takeshi Fujii , Kenji Adachi , Hiroaki Ozeki , Mineyuki Iwaida
IPC分类号： H04B1/40 , H04B1/06
CPC分类号： H03L7/099 , H03L7/10 , H03L2207/06
摘要： VCO (voltage-controlled oscillator) device used for a radio unit such as a television broadcast receiver. A VCO device oscillating in a wide band of oscillation frequency and capable of realizing low power consumption is provided. VCO circuit group 4 oscillates signals of frequencies corresponding to control voltage Vt applied to frequency control voltage terminal 8. LO signal selecting means 3 selects a required output signal from VCO circuit group 4. PLL 6 frequency-divides local signal fvco selected by LO signal selecting means 3, compares a phase thereof with a phase of a reference signal and outputs a signal converted from a phase difference. Loop filter 7 smoothes the output signal from PLL 6, outputs control voltage Vt that is a frequency control voltage and outputs the local-signal selected by signal selecting means 3 to high frequency signal processing means 1.
摘要翻译：用于诸如电视广播接收机的无线电单元的VCO（压控振荡器）装置。提供了在宽频带振荡频率下振荡并且能够实现低功耗的VCO器件。 VCO电路组4振荡对应于施加到频率控制电压端子8的控制电压Vt的频率的信号。 LO信号选择装置3从VCO电路组4中选择所需的输出信号。 PLL 6对由LO信号选择装置3选择的本地信号fvco进行分频，将其相位与参考信号的相位进行比较，并输出从相位差转换的信号。环路滤波器7平滑来自PLL 6的输出信号，输出作为频率控制电压的控制电压Vt，并将由信号选择装置3选择的局部信号输出到高频信号处理装置1。

10. 发明授权

US08165550B2 Local oscillator, receiver, and electronic device 失效
标题翻译：本地振荡器，接收器和电子设备
公开(公告)号：US08165550B2
公开(公告)日：2012-04-24
申请号：US12282080
申请日：2008-03-07
申请人： Takeshi Fujii , Yasuo Ooba , Mineyuki Iwaida , Hiroaki Ozeki
发明人： Takeshi Fujii , Yasuo Ooba , Mineyuki Iwaida , Hiroaki Ozeki
IPC分类号： H04B1/06 , H04B7/00
CPC分类号： H03L7/10 , H03B5/1215 , H03B5/1231 , H03B5/1265 , H03B2201/0208 , H03B2201/025 , H03J2200/10 , H03L7/087 , H03L7/099 , H03L7/18 , H03L2207/06
摘要： A broad oscillation frequency range and good phase noise characteristic are achievable simultaneously by an oscillation circuit and a resonance circuit connected to the oscillation circuit. The resonance circuit includes an inductor element connected to the oscillation circuit, a first variable capacitance section connected to the inductor element, and a second variable capacitance section connected in parallel to the first variable capacitance section. The first variable capacitance section includes a first variable capacitive element connected to the inductor element, and a second variable capacitive element connected in parallel to the first variable capacitive element. The first variable capacitive element changes its capacity value based on a control voltage and a first reference voltage. The second variable capacitive element changes its capacity value based on the control voltage and a second reference voltage. The first reference voltage and the second reference voltage are controlled based on the capacity value of the second variable capacitance section.
摘要翻译：通过振荡电路和连接到振荡电路的谐振电路同时实现宽振荡频率范围和良好的相位噪声特性。谐振电路包括连接到振荡电路的电感器元件，连接到电感器元件的第一可变电容部分和与第一可变电容部分并联连接的第二可变电容部分。第一可变电容部分包括连接到电感器元件的第一可变电容元件和与第一可变电容元件并联连接的第二可变电容元件。第一可变电容元件基于控制电压和第一参考电压改变其容量值。第二可变电容元件根据控制电压和第二参考电压改变其容量值。基于第二可变电容部的容量值来控制第一基准电压和第二基准电压。

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