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公开(公告)号：US20120108187A1
公开(公告)日：2012-05-03
申请号：US13381240
申请日：2010-04-01
Applicant: Ryo Kitamura , Kaoru Ishida , Mikihiro Shimada , Hiroshi Komori
Inventor： Ryo Kitamura , Kaoru Ishida , Mikihiro Shimada , Hiroshi Komori
IPC: H04B1/04
CPC classification number: H03F1/0261 , H03F1/304 , H03F1/32 , H03F3/245 , H03F2200/108 , H03F2200/18 , H03F2200/408 , H03F2200/468
Abstract: A transmitter circuit is provided which is capable of reducing modulation distortion even when an output power of a power amplifying section 141 is low. A signal generation section 11 generates an amplitude signal and a phase signal. A regulator 12 outputs a current based on the amplitude signal. A phase modulation section 13 phase-modulates the phase signal, and outputs a phase-modulated signal. The power amplifying section 141 receives the current which is based on the amplitude signal and supplied as a bias current from the regulator 12, and amplifies the phase-modulated signal by using the supplied current. Further, to the power amplifying section 141, a predetermined DC voltage is supplied as a collector voltage.
Abstract translation: 提供一种即使当功率放大部分141的输出功率低时也能够降低调制失真的发射机电路。 信号生成部11生成振幅信号和相位信号。 调节器12基于振幅信号输出电流。 相位调制部13对相位信号进行相位调制，并输出相位调制信号。 功率放大部分141接收基于振幅信号并作为偏置电流从调节器12提供的电流，并且通过使用所提供的电流来放大相位调制信号。 此外，向功率放大部141提供预定的DC电压作为集电极电压。
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公开(公告)号：US08223886B2
公开(公告)日：2012-07-17
申请号：US12472674
申请日：2009-05-27
Applicant: Ryo Kitamura , Kaoru Ishida
Inventor： Ryo Kitamura , Kaoru Ishida
CPC classification number: H04L27/20 , H03F1/0261 , H03F3/189 , H03F3/24 , H03F2200/105 , H03F2200/222 , H03F2200/27 , H03F2200/387 , H03F2200/451 , H03F2200/78 , H03G3/3042
Abstract: A transmission circuit switches a bias circuit without allowing a power amplifier to enter a non-bias state. A first bias circuit supplies a first bias signal to a power amplifier, and a second bias circuit supplies a second bias signal to the power amplifier. A first delay circuit delays the switching of an operation of the first bias circuit using a first delay time, and a second delay circuit delays the switching of an operation of the second bias circuit using a second delay time. The first bias circuit and the second bias circuit are both simultaneously operated for a predefined time period, in order to prevent a transistor for amplification from entering a non-bias state when switching an operation mode of the power amplifier.
Abstract translation: 传输电路在不允许功率放大器进入非偏置状态的情况下切换偏置电路。 第一偏置电路将第一偏置信号提供给功率放大器，并且第二偏置电路将第二偏置信号提供给功率放大器。 第一延迟电路使用第一延迟时间延迟第一偏置电路的操作的切换，并且第二延迟电路使用第二延迟时间来延迟第二偏置电路的操作的切换。 第一偏置电路和第二偏置电路都同时操作预定义的时间段，以便在切换功率放大器的操作模式时防止用于放大的晶体管进入非偏置状态。
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公开(公告)号：US20120106403A1
公开(公告)日：2012-05-03
申请号：US13383256
申请日：2010-06-02
Applicant: Mikihiro Shimada , Ryo Kitamura , Kaoru Ishida , Hiroshi Komori
Inventor： Mikihiro Shimada , Ryo Kitamura , Kaoru Ishida , Hiroshi Komori
CPC classification number: H03F1/0222 , H03F1/0266 , H03F3/24 , H03F2200/408 , H03G3/004 , H03G3/3042 , H03G11/00 , H04B1/0475
Abstract: A transmission circuit according to the present invention includes: an amplitude signal driving section (220) that generates a control voltage based on an amplitude signal in a high-output mode, and generates a control voltage at a predetermined level and a bias current based on the amplitude signal in a low-output mode; a variable gain adjustment section (114) that adjusts a power level of the phase signal; and a power amplifier (130) which amplitude-modulates the phase signal having the adjusted power level on the basis of the control voltage, in the high-output mode, and to a power supply terminal of which the control voltage is supplied and which amplitude-modulates the phase signal having the adjusted power level on the basis of the bias current, in the low-output mode. In a specific region in a low-output region and close to a high-output region, the variable gain adjustment section (114) adjusts the power level of the phase signal to a predetermined upper-limit level, and the amplitude signal driving section (220) adjusts a gain of the power amplifier (130) to obtain a desired output power level.
Abstract translation: 根据本发明的发送电路包括：振幅信号驱动部（220），其根据高输出模式的振幅信号生成控制电压，并且产生基于预定电平的控制电压和基于 幅度信号处于低输出模式; 调整所述相位信号的功率电平的可变增益调整部（114） 以及功率放大器（130），其在高输出模式下基于控制电压对调整后的功率电平的相位信号进行幅度调制，并且向提供控制电压的电源端子和幅度调制幅度 在低输出模式下，根据偏置电流调制具有调整功率电平的相位信号。 在低输出区域的特定区域中，接近高输出区域的可变增益调整部114将相位信号的功率电平调整为规定的上限电平，振幅信号驱动部 220）调整功率放大器（130）的增益以获得期望的输出功率电平。
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公开(公告)号：US08532591B2
公开(公告)日：2013-09-10
申请号：US13383256
申请日：2010-06-02
Applicant: Mikihiro Shimada , Ryo Kitamura , Kaoru Ishida , Hiroshi Komori
Inventor： Mikihiro Shimada , Ryo Kitamura , Kaoru Ishida , Hiroshi Komori
IPC: H04B1/02
CPC classification number: H03F1/0222 , H03F1/0266 , H03F3/24 , H03F2200/408 , H03G3/004 , H03G3/3042 , H03G11/00 , H04B1/0475
Abstract: A transmission circuit according to the present invention includes: an amplitude signal driving section (220) that generates a control voltage based on an amplitude signal in a high-output mode, and generates a control voltage at a predetermined level and a bias current based on the amplitude signal in a low-output mode; a variable gain adjustment section (114) that adjusts a power level of the phase signal; and a power amplifier (130) which amplitude-modulates the phase signal having the adjusted power level on the basis of the control voltage, in the high-output mode, and to a power supply terminal of which the control voltage is supplied and which amplitude-modulates the phase signal having the adjusted power level on the basis of the bias current, in the low-output mode. In a specific region in a low-output region and close to a high-output region, the variable gain adjustment section (114) adjusts the power level of the phase signal to a predetermined upper-limit level, and the amplitude signal driving section (220) adjusts a gain of the power amplifier (130) to obtain a desired output power level.
Abstract translation: 根据本发明的发送电路包括：振幅信号驱动部（220），其根据高输出模式的振幅信号生成控制电压，并且产生基于预定电平的控制电压和基于 幅度信号处于低输出模式; 调整所述相位信号的功率电平的可变增益调整部（114） 以及功率放大器（130），其在高输出模式下基于控制电压对调整后的功率电平的相位信号进行幅度调制，并且向提供控制电压的电源端子和幅度 在低输出模式下，根据偏置电流调制具有调整功率电平的相位信号。 在低输出区域的特定区域中，接近高输出区域的可变增益调整部114将相位信号的功率电平调整为规定的上限电平，振幅信号驱动部 220）调整功率放大器（130）的增益以获得期望的输出功率电平。
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公开(公告)号：US08396432B2
公开(公告)日：2013-03-12
申请号：US13381240
申请日：2010-04-01
Applicant: Ryo Kitamura , Kaoru Ishida , Mikihiro Shimada , Hiroshi Komori
Inventor： Ryo Kitamura , Kaoru Ishida , Mikihiro Shimada , Hiroshi Komori
IPC: H04B1/04
CPC classification number: H03F1/0261 , H03F1/304 , H03F1/32 , H03F3/245 , H03F2200/108 , H03F2200/18 , H03F2200/408 , H03F2200/468
Abstract: A transmitter circuit is provided which is capable of reducing modulation distortion even when an output power of a power amplifying section 141 is low. A signal generation section 11 generates an amplitude signal and a phase signal. A regulator 12 outputs a current based on the amplitude signal. A phase modulation section 13 phase-modulates the phase signal, and outputs a phase-modulated signal. The power amplifying section 141 receives the current which is based on the amplitude signal and supplied as a bias current from the regulator 12, and amplifies the phase-modulated signal by using the supplied current. Further, to the power amplifying section 141, a predetermined DC voltage is supplied as a collector voltage.
Abstract translation: 提供一种即使当功率放大部分141的输出功率低时也能够降低调制失真的发射机电路。 信号生成部11生成振幅信号和相位信号。 调节器12基于振幅信号输出电流。 相位调制部13对相位信号进行相位调制，并输出相位调制信号。 功率放大部分141接收基于振幅信号并作为偏置电流从调节器12提供的电流，并且通过使用所提供的电流放大相位调制信号。 此外，向功率放大部141提供预定的DC电压作为集电极电压。
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Patent Agency Ranking
公开(公告)号：US20120099675A1
公开(公告)日：2012-04-26
申请号：US13380955
申请日：2010-04-01
Applicant: Ryo Kitamura , Takahito Miyazaki
Inventor： Ryo Kitamura , Takahito Miyazaki
CPC classification number: H03F3/245 , H03F1/0211 , H03F1/0261 , H03F3/19 , H03F2200/18 , H03F2200/336 , H04B1/406
Abstract: Provided is a transmission circuit which allows smooth switching of the operation mode when switching the operation mode of the transmission circuit. A power amplifier 14 includes: a first input terminal to which a direct-current voltage or a voltage in accordance with an amplitude signal M is supplied; a second input terminal to which an output signal from a first variable gain amplifier 171 or an output signal from a second variable gain amplifier 172 is inputted; and a third input terminal to which an output signal from a first bias circuit 15 or an output signal from a second bias circuit 16 is inputted. A control section 11 switches the operation mode of the transmission circuit so that at least one of the first input terminal, the second input terminal, and the third input terminal of the power amplifier is prevented from being in a no input state.
Abstract translation: 提供一种传输电路，其在切换传输电路的操作模式时能够平滑地切换操作模式。 功率放大器14包括：第一输入端子，其中提供有根据振幅信号M的直流电压或电压; 输入来自第一可变增益放大器171的输出信号或来自第二可变增益放大器172的输出信号的第二输入端; 以及输入来自第一偏置电路15的输出信号或来自第二偏置电路16的输出信号的第三输入端子。 控制部分11切换传输电路的操作模式，使得防止功率放大器的第一输入端，第二输入端和第三输入端中的至少一个处于无输入状态。
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公开(公告)号：US09025706B2
公开(公告)日：2015-05-05
申请号：US14131845
申请日：2012-09-12
Applicant: Ryo Kitamura
Inventor： Ryo Kitamura
CPC classification number: H04L25/061 , H03F3/45475 , H03F3/45968 , H03F2200/168 , H03F2200/408 , H03F2203/45138 , H03G3/3052 , H04B1/0007 , H04B1/28 , H04L1/0036
Abstract: VGAs amplify a baseband reception signal using a prescribed gain. HPFs stop part, in a band lower than a first cutoff frequency, of the amplified reception signal. An ADC AD-converts an output signal of the HPFs and thereby outputs a digital reception signal. An AGC controller outputs a gain code corresponding to a prescribed gain of the VGAs. A VGA gain corrector adjusts the gain of the VGAs by a prescribed amount.
Abstract translation: VGA使用规定的增益来放大基带接收信号。 HPF在低于第一截止频率的频带中停止放大的接收信号的一部分。 ADC AD转换HPF的输出信号，从而输出数字接收信号。 AGC控制器输出对应于VGA的规定增益的增益码。 VGA增益校正器将VGA的增益调整规定量。
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公开(公告)号：US20140146926A1
公开(公告)日：2014-05-29
申请号：US14131845
申请日：2012-09-12
Applicant: Ryo Kitamura
Inventor： Ryo Kitamura
CPC classification number: H04L25/061 , H03F3/45475 , H03F3/45968 , H03F2200/168 , H03F2200/408 , H03F2203/45138 , H03G3/3052 , H04B1/0007 , H04B1/28 , H04L1/0036
Abstract: VGAs amplify a baseband reception signal using a prescribed gain. HPFs stop part, in a band lower than a first cutoff frequency, of the amplified reception signal. An ADC AD-converts an output signal of the HPFs and thereby outputs a digital reception signal. An AGC controller outputs a gain code corresponding to a prescribed gain of the VGAs. A VGA gain corrector adjusts the gain of the VGAs by a prescribed amount.
Abstract translation: VGA使用规定的增益来放大基带接收信号。 HPF在低于第一截止频率的频带中停止放大的接收信号的一部分。 ADC AD转换HPF的输出信号，从而输出数字接收信号。 AGC控制器输出对应于VGA的规定增益的增益码。 VGA增益校正器将VGA的增益调整规定量。
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公开(公告)号：US20120119841A1
公开(公告)日：2012-05-17
申请号：US13383486
申请日：2011-05-12
Applicant: Ryo Kitamura
Inventor： Ryo Kitamura
IPC: H03C5/00
CPC classification number: H04B1/0475 , H03F1/0222 , H03F1/0227 , H03F1/32 , H03F1/3223 , H03F3/24 , H03F2200/102 , H03F2200/336 , H04B2001/0441
Abstract: Provided is a transmission circuit that operates highly efficiently by avoiding deterioration of the linearity of an output signal and suppressing occurrence of distortion of the output signal, when using the envelope tracking method. In this transmission circuit, offset control section (160) sets voltage that makes the corrected envelope signal level equal to or higher than the delayed envelope signal level, as offset voltage. By this means, the corrected envelope signal level becomes equal to or higher than the delayed envelope signal level, so that it is possible to prevent the power supply voltage from being lower than the optimal power supply voltage, making it possible to prevent the linearity of an output signal from deteriorating in power amplifier (130).
Abstract translation: 提供了一种使用包络跟踪方法时，通过避免输出信号的线性的劣化和抑制输出信号的失真的发生而高效地运行的发送电路。 在该发送电路中，偏移控制部（160）将校正的包络信号电平设定为等于或高于延迟包络信号电平的电压作为偏移电压。 通过这种方式，校正的包络信号电平变得等于或高于延迟包络信号电平，使得可以防止电源电压低于最佳电源电压，使得可以防止线性 在功率放大器（130）中恶化的输出信号。
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公开(公告)号：US08653902B2
公开(公告)日：2014-02-18
申请号：US13383486
申请日：2011-05-12
Applicant: Ryo Kitamura
Inventor： Ryo Kitamura
IPC: H04L27/00
CPC classification number: H04B1/0475 , H03F1/0222 , H03F1/0227 , H03F1/32 , H03F1/3223 , H03F3/24 , H03F2200/102 , H03F2200/336 , H04B2001/0441
Abstract: Provided is a transmission circuit that operates highly efficiently by avoiding deterioration of the linearity of an output signal and suppressing occurrence of distortion of the output signal, when using the envelope tracking method. In this transmission circuit, offset control section (160) sets voltage that makes the corrected envelope signal level equal to or higher than the delayed envelope signal level, as offset voltage. By this means, the corrected envelope signal level becomes equal to or higher than the delayed envelope signal level, so that it is possible to prevent the power supply voltage from being lower than the optimal power supply voltage, making it possible to prevent the linearity of an output signal from deteriorating in power amplifier (130).
Abstract translation: 提供了一种使用包络跟踪方法时，通过避免输出信号的线性的劣化和抑制输出信号的失真的发生而高效地运行的发送电路。 在该发送电路中，偏移控制部（160）将校正的包络信号电平设定为等于或高于延迟包络信号电平的电压作为偏移电压。 通过这种方式，校正的包络信号电平变得等于或高于延迟包络信号电平，使得可以防止电源电压低于最佳电源电压，使得可以防止线性 在功率放大器（130）中恶化的输出信号。
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