公开(公告)号：US08565344B2

公开(公告)日：2013-10-22

申请号：US13380955

申请日：2010-04-01

Applicant: Ryo Kitamura ,  Takahito Miyazaki

Inventor： Ryo Kitamura ,  Takahito Miyazaki

IPC: H04L27/36

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允许操作模式的平滑切换。 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，从而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。

公开(公告)号：US08520766B2

公开(公告)日：2013-08-27

申请号：US13148747

申请日：2010-10-12

Applicant: Ryo Kitamura ,  Yukihiro Omoto

Inventor： Ryo Kitamura ,  Yukihiro Omoto

IPC: H04L27/00

CPC classification number: H03F3/245 ,  H03F1/0227 ,  H03F2200/336 ,  H03F2200/351 ,  H03F2200/465

Abstract: Provided is a transmitter which is small in size and operates with high efficiency and compensates a delay error with high accuracy. A signal generation section 11 outputs a PM test signal and an AM test signal. The AM test signal is inputted to a multiplier 16 via a delay adjustment section 12 and a regulator 14. The PM test signal is inputted to the multiplier 16 via the delay adjustment section 12. A power measurement section 17 measures an average power of a multiplication signal which is outputted from the multiplier 16 and outputs a measured value to a control section 18. The control section 18 determines an amplitude delay time and a phase delay time on the basis of the inputted measured value and sets the determined delay times in the delay adjustment section 12.

Abstract translation: 提供了一种尺寸小，效率高，发射精度高的延迟误差的发射机。 信号生成部11输出PM测试信号和AM测试信号。 AM测试信号通过延迟调整部分12和调节器14输入到乘法器16.PM测试信号通过延迟调整部分12输入到乘法器16.功率测量部分17测量乘法器的平均功率 信号，其从乘法器16输出并将测量值输出到控制部分18.控制部分18基于输入的测量值确定振幅延迟时间和相位延迟时间，并将确定的延迟时间设置在延迟 调整部12。

公开(公告)号：US08442459B2

公开(公告)日：2013-05-14

申请号：US12493496

申请日：2009-06-29

Applicant: Shigeru Morimoto ,  Ryo Kitamura

Inventor： Shigeru Morimoto ,  Ryo Kitamura

IPC: H04B1/66

CPC classification number: H03C5/00 ,  H03G3/3047

Abstract: A signal generating section 10 outputs an amplitude signal and a frequency signal by conducting a signal processing on inputted data. A regulator 31 outputs a signal that is proportional to a magnitude of the amplitude signal. The signal outputted from the regulator 31 passes through a low pass filter 41, and is inputted into a power amplifier 51. The power amplifier 51 conducts an amplitude modulation on a frequency signal on which an angle modulation is conducted by an angle modulation section 20, using a signal outputted from the low pass filter 41. A controlling section 60 controls an amount of attenuation of a radio frequency component at the low pass filter 41 based on information such as: a modulation method of the inputted data; a modulation condition of the inputted data; a reception band; an output power of a modulation signal; and a frequency of the modulation signal.

Abstract translation: 信号生成部10通过对输入的数据进行信号处理来输出振幅信号和频率信号。 调节器31输出与振幅信号的大小成比例的信号。 从调节器31输出的信号通过低通滤波器41，并输入到功率放大器51.功率放大器51对由角度调制部20进行角度调制的频率信号进行幅度调制， 使用从低通滤波器41输出的信号。控制部分60根据以下信息控制低通滤波器41的射频分量的衰减量：输入数据的调制方式; 输入数据的调制条件; 接待频带; 调制信号的输出功率; 和调制信号的频率。

公开(公告)号：US20120250747A1

公开(公告)日：2012-10-04

申请号：US13148747

申请日：2010-10-12

Applicant: Ryo Kitamura ,  Yukihiro Omoto

Inventor： Ryo Kitamura ,  Yukihiro Omoto

IPC: H04L27/36 ,  H04B17/00

CPC classification number: H03F3/245 ,  H03F1/0227 ,  H03F2200/336 ,  H03F2200/351 ,  H03F2200/465

Abstract: Provided is a transmitter which is small in size and operates with high efficiency and compensates a delay error with high accuracy. A signal generation section 11 outputs a PM test signal and an AM test signal. The AM test signal is inputted to a multiplier 16 via a delay adjustment section 12 and a regulator 14. The PM test signal is inputted to the multiplier 16 via the delay adjustment section 12. A power measurement section 17 measures an average power of a multiplication signal which is outputted from the multiplier 16 and outputs a measured value to a control section 18. The control section 18 determines an amplitude delay time and a phase delay time on the basis of the inputted measured value and sets the determined delay times in the delay adjustment section 12.

Abstract translation: 提供了一种尺寸小，效率高，发射精度高的延迟误差的发射机。 信号生成部11输出PM测试信号和AM测试信号。 AM测试信号通过延迟调整部分12和调节器14输入到乘法器16.PM测试信号通过延迟调整部分12输入到乘法器16.功率测量部分17测量乘法器的平均功率 信号，其从乘法器16输出并将测量值输出到控制部分18.控制部分18基于输入的测量值确定振幅延迟时间和相位延迟时间，并将确定的延迟时间设置在延迟 调整部12。