公开(公告)号：US20120140852A1

公开(公告)日：2012-06-07

申请号：US13388495

申请日：2010-04-07

Applicant: Akira Kato ,  Kaoru Ishida

Inventor： Akira Kato ,  Kaoru Ishida

IPC: H04L27/36

CPC classification number: H03F1/30 ,  H03F3/189 ,  H03F3/24 ,  H03F2200/331 ,  H03F2200/336 ,  H03F2200/405 ,  H03F2200/447 ,  H03F2200/451 ,  H03G3/3042 ,  H04B1/0475

Abstract: A transmitter circuit includes a first synthesizer section, and a second synthesizer section which consumes less current than the first synthesizer section. The transmitter circuit performs switching such that the first synthesizer section is operated and the second synthesizer section is powered off in polar modulation, and the second synthesizer section is operated and the first synthesizer section is powered off in quadrature modulation, thereby reducing consumed power. While the first synthesizer section is operating, calibration for an oscillation frequency is performed, and when the operation is stopped, a calibration value is stored. When an operation of the first synthesizer section is restarted, the stored calibration value is corrected by using temperature change, thereby enhancing calibration accuracy and preventing degradation in quality of a transmission signal.

Abstract translation: 发射机电路包括第一合成器部分和与第一合成器部分相比消耗更少电流的第二合成器部分。 发射机电路进行切换，使得第一合成器部分被操作，并且第二合成器部分在极性调制中被断电，并且第二合成器部分被操作，并且第一合成器部分在正交调制中被断电，从而降低了功耗。 当第一合成器部分工作时，执行振荡频率的校准，当操作停止时，存储校准值。 当重新启动第一合成器部分的操作时，通过使用温度变化来校正存储的校准值，从而提高校准精度并防止传输信号的质量劣化。

公开(公告)号：US20120114075A1

公开(公告)日：2012-05-10

申请号：US13381226

申请日：2010-05-19

Applicant: Mikihiro Shimada ,  Kaoru Ishida ,  Hiroshi Komori

Inventor： Mikihiro Shimada ,  Kaoru Ishida ,  Hiroshi Komori

IPC: H04L27/36

CPC classification number: H03F1/0227 ,  H03F3/195 ,  H03F3/24 ,  H03F2200/324 ,  H03F2200/336 ,  H04B2001/0416

Abstract: A transmission circuit (100) according to the present invention includes an RF-IC (110), an EM-IC (120), and a power amplifier (130). The EM-IC (120) includes a DC-DC converter (123), a transistor (124), a low-dropout regulator (121), and a regulator output selector switch (122). After an elapse of a predetermined time from a time when an operation mode of the transmission circuit has switched from a polar modulation mode to a quadrature modulation mode to a time when a power supply voltage for the quadrature modulation mode output from the DC-DC converter (123) stabilizes at a desired value, the regulator output selector switch (122) switches a connection destination of a gate of the transistor (124) to a fixed potential, and outputs as a control voltage the power supply voltage for the quadrature modulation mode output from the DC-DC converter (123).

Abstract translation: 根据本发明的传输电路（100）包括RF-IC（110），EM-IC（120）和功率放大器（130）。 EM-IC（120）包括DC-DC转换器（123），晶体管（124），低压差稳压器（121）和调节器输出选择器开关（122）。 在从发送电路的操作模式从极调制模式切换到正交调制模式的时间经过预定时间之后到从DC-DC转换器输出的正交调制模式的电源电压 （123）稳定在期望值时，调节器输出选择器开关（122）将晶体管（124）的栅极的连接目的地切换到固定电位，并将用于正交调制模式的电源电压作为控制电压输出 从DC-DC转换器（123）输出。

公开(公告)号：US20120105151A1

公开(公告)日：2012-05-03

申请号：US13383609

申请日：2011-05-13

Applicant: Maki Nakamura ,  Kaoru Ishida

Inventor： Maki Nakamura ,  Kaoru Ishida

IPC: H03G3/20

CPC classification number: H04B1/0475 ,  H03F1/02 ,  H03F1/0211 ,  H03F3/24 ,  H03F2200/105 ,  H04B1/406 ,  H04B2001/045

Abstract: Provided is a transmission circuit capable of compensating a variation in output power caused due to a temperature change or an individual variability when the operation mode is switched without an increase in the size of the transmission circuit which switches the operation mode between a linear operation mode and a nonlinear operation mode, and capable of suppressing the deterioration of the quality of a transmission signal. In the transmission circuit, a gain setting section (160) sets the gain (target gain) of a variable gain amplifier (140), to a value which enables the variable gain amplifier (140) to operate linearly and corresponds to a comparison result (output error level) obtained through comparison between the target level of the variable gain amplifier (140) corresponding to the set power level of the transmission signal and the power level of an output signal of the variable gain amplifier (140) detected by a power detection section (150). The variable gain amplifier (140) amplifies an amplitude phase modulation signal or a phase modulation signal (phase path signal) in accordance with the target gain set by the gain setting section (160).

Abstract translation: 提供了一种传输电路，其能够补偿当切换操作模式时由于温度变化或单独变化而引起的输出功率的变化，而不增加在线性操作模式和线性操作模式之间切换操作模式的传输电路的尺寸 非线性运算模式，能够抑制发送信号质量的恶化。 在发送电路中，增益设定部（160）将可变增益放大器（140）的增益（目标增益）设定为允许可变增益放大器（140）线性运行并对应于比较结果（ 输出误差电平），其与通过发送信号的设定功率电平相对应的可变增益放大器（140）的目标电平与通过功率检测检测到的可变增益放大器（140）的输出信号的功率电平 （150）。 可变增益放大器（140）根据由增益设定部（160）设定的目标增益来放大幅度相位调制信号或相位调制信号（相位路径信号）。

公开(公告)号：US20120093044A1

公开(公告)日：2012-04-19

申请号：US13380094

申请日：2010-04-14

Applicant: Kaoru Ishida

Inventor： Kaoru Ishida

IPC: H04B7/00 ,  H04J3/00

CPC classification number: H04B1/0067

Abstract: Provided is a multiband wireless apparatus that, even if the number of supported frequency bands increases, suppresses increase in the number of components, and completes cell search within a specified time. In a multiband wireless apparatus (1), a reception channel to which a current reception channel is going to be next switched is set in advance for one of a tunable duplexer (13) and a reception dedicated tunable filter (14) that is not connected to an antenna. An antenna switch (15), in a normal transmission/reception mode, connects the antenna to the tunable duplexer (13), and in a compressed mode, switches the connection of the antenna between the tunable duplexer (13) and the reception dedicated tunable filter (14).

Abstract translation: 提供了一种多频带无线装置，即使所支持的频带的数量增加，也抑制了分量的增加，并且在规定的时间内完成小区搜索。 在多频无线装置（1）中，对于未连接的可调谐双工器（13）和接收专用可调谐滤波器（14）中的一个，预先设定要接下来切换当前接收信道的接收信道 到天线。 在正常发送/接收模式下的天线开关（15）将天线连接到可调谐双工器（13），并且在压缩模式下，切换天线在可调谐双工器（13）和接收专用可调谐器 过滤器（14）。

公开(公告)号：US07912148B2

公开(公告)日：2011-03-22

申请号：US11878902

申请日：2007-07-27

Applicant: Toru Matsuura ,  Kaoru Ishida

Inventor： Toru Matsuura ,  Kaoru Ishida

IPC: H04K1/02 ,  H04L25/03 ,  H04L25/49

CPC classification number: H04B1/0483 ,  H03C5/00 ,  H03F1/0205 ,  H03F1/0211 ,  H03F1/32 ,  H03F1/3241 ,  H03F3/245 ,  H03F2200/324 ,  H03F2200/447 ,  H03F2200/468 ,  H03F2200/504 ,  H04B1/0475 ,  H04B2001/0425 ,  H04L27/361

Abstract: A transmission circuit precisely compensates for an offset characteristic of an amplitude modulation section and operates with low distortion and high efficiency over a wide output power range. A signal generation section outputs an amplitude signal and an angle-modulated signal. An amplitude amplifying section supplies, to the amplitude modulation section, a voltage corresponding to a magnitude of an inputted amplitude signal. The amplitude modulation section amplitude-modulates the angle-modulated signal by the voltage supplied from the amplitude amplifying section, thereby outputting a resultant signal as a modulation signal. A temperature measuring section measures a temperature of the amplitude modulation section. An offset compensation section calculates an offset compensation value in accordance with a change, in temperature of the amplitude modulation section, from the temperature of the amplitude modulation section in an initial state, and adds the calculated offset compensation value to the amplitude signal.

Abstract translation: 传输电路精确地补偿幅度调制部分的偏移特性，并在宽输出功率范围内以低失真和高效率工作。 信号生成部输出振幅信号和角度调制信号。 振幅放大部分向幅度调制部分提供对应于输入的振幅信号的幅度的电压。 幅度调制部分通过从幅度放大部分提供的电压来对角度调制信号进行幅度调制，从而输出作为调制信号的合成信号。 温度测量部分测量幅度调制部分的温度。 偏移补偿部根据初始状态下的振幅调制部的温度，根据振幅调制部的温度的变化来计算偏移补偿值，并将计算出的偏移补偿值与幅度信号相加。

公开(公告)号：US07760043B2

公开(公告)日：2010-07-20

申请号：US12280975

申请日：2007-02-27

Applicant: Maki Nakamura ,  Kaoru Ishida

Inventor： Maki Nakamura ,  Kaoru Ishida

IPC: H03C3/00 ,  H03C3/38

CPC classification number: H03F3/189 ,  H03C5/00 ,  H03F3/24 ,  H03F2200/324 ,  H03F2200/504 ,  H04L27/361

Abstract: Provided is a polar modulation apparatus capable of performing power limit with a simple configuration even when controlling a transmission power and increasing the transmission signal output power control range. A polar modulation device (1) includes an amplitude limit unit (6) for limiting an amplitude component of an amplitude signal, a D/A converter (7) for converting an inputted digital signal into an analog signal, a power control unit (8) for performing power control so that the inputted signal is an output signal based on the power control signal, a voltage control circuit (9) for supplying voltage to an amplitude modulator (11) according to the output signal from the power control unit (8), an angle modulator (10) for performing angle modulation according to a phase signal, and an amplitude modulator (11) for performing amplitude modulation on the signal subjected to angle modulation, according to the voltage supplied from the voltage control circuit (9).

Abstract translation: 提供一种即使在控制发送功率并增加发送信号输出功率控制范围时也能够以简单的配置进行功率限制的极地调制装置。 极化调制装置（1）包括用于限制幅度信号的振幅分量的振幅限制单元（6），用于将输入的数字信号转换为模拟信号的D / A转换器（7），功率控制单元（8 ），用于执行功率控制，使得输入信号是基于功率控制信号的输出信号;电压控制电路（9），用于根据来自功率控制单元（8）的输出信号向幅度调制器（11）提供电压 ），用于根据相位信号进行角度调制的角度调制器（10），以及用于根据从电压控制电路（9）提供的电压对经过角度调制的信号进行幅度调制的幅度调制器（11） 。

公开(公告)号：US07737800B2

公开(公告)日：2010-06-15

申请号：US11969783

申请日：2008-01-04

Applicant: Akira Kato ,  Kaoru Ishida

Inventor： Akira Kato ,  Kaoru Ishida

IPC: H03C3/06 ,  H03C3/08 ,  H03L7/08 ,  H04B7/00

CPC classification number: H03C3/38

Abstract: Provided is a frequency modulation circuit 1 for outputting a highly precise frequency-modulated signal regardless of variation in a characteristic of a VCO 15. A correction value calculation section 17 calculates a correction value Vt2 based on a voltage value (Vtx−Vt1) resulting from subtracting a control voltage Vt1, which is generated by a control voltage generation section 11, from a control voltage Vtx at which a sensitivity of the VCO 15 is maximized. A variable amplifier 18 amplifies the correction value Vt2. An addition section 13 outputs a control voltage Vt3, which results from adding the amplified correction value Vt2 to the control voltage Vt1, to the VCO 15 via a DAC 14.

Abstract translation: 提供了一种频率调制电路1，用于输出高精度的调频信号，而不管VCO 15的特性如何变化。校正值计算部分17根据由电压值（Vtx-Vt1）产生的电压值（Vtx-Vt1）来计算校正值Vt2 从控制电压产生部分11产生的控制电压Vt1从VCO15的灵敏度最大化的控制电压Vtx减去。 可变放大器18放大校正值Vt2。 加法部分13通过DAC 14将经过放大的校正值Vt2与控制电压Vt1相加的控制电压Vt3输出到VCO 15。

公开(公告)号：US07587180B2

公开(公告)日：2009-09-08

申请号：US11583176

申请日：2006-10-19

Applicant: Masakatsu Maeda ,  Kaoru Ishida

Inventor： Masakatsu Maeda ,  Kaoru Ishida

IPC: H04B1/04

CPC classification number: H03C3/0925 ,  H03C3/0941 ,  H03C3/095 ,  H03C3/0966 ,  H03C3/0983

Abstract: An FM modulator measuring an f-V characteristic of a voltage controlled oscillator in a reduced time period. In the FM modular a characteristic measurement time control section 110 notifies a correction section 108 of a time at which a measurement of the f-V characteristic of a voltage controlled oscillator 103 is to start and a time at which the measurement of the f-V characteristic of the voltage controlled oscillator 103 is to and while a carrier wave frequency is being changed to a predetermined frequency. Thus, the correction section 108 measures the f-V characteristic of the voltage controlled oscillator 103 in a reduced time period.

Abstract translation: 在缩短的时间周期内测量压控振荡器的f-V特性的FM调制器。 在FM模块中，特性测量时间控制部分110向校正部分108通知压控振荡器103的fV特性的测量开始的时间和电压的fV特性的测量的时间 受控振荡器103正在将载波频率改变为预定频率。 因此，校正部分108在减小的时间段内测量压控振荡器103的f-V特性。

公开(公告)号：US07454186B2

公开(公告)日：2008-11-18

申请号：US11169978

申请日：2005-06-29

Applicant: Takuji Yoneda ,  Hidehiko Kurimoto ,  Kaoru Ishida

Inventor： Takuji Yoneda ,  Hidehiko Kurimoto ,  Kaoru Ishida

IPC: H04B1/26

CPC classification number: H03G3/3078 ,  H03G1/04 ,  H03G3/3052 ,  H04B1/30

Abstract: The direct conversion receiving apparatus has a gain control amplifier for variably amplifying a base band signal based on a gain switching control signal. A high pass filter has a first circuit including capacitors connected in parallel that are inserted in a path connecting an input terminal to an output terminal and switching effective total capacitance of the capacitors based on a first time constant switching control signal, and a second circuit including a resistor for providing a predetermined direct current voltage to the output terminal and switching the effective resistance value of the resistor based on a second time constant switching control signal. A control circuit outputs the gain switching control signal, and the first and second time constant switching control signals according to the change of the gain control of said gain control amplifier.

Abstract translation: 直接变换接收装置具有用于基于增益切换控制信号可变地放大基带信号的增益控制放大器。 高通滤波器具有第一电路，其包括并联连接的电容器，其插入到连接输入端子到输出端子的路径中，并且基于第一时间常数切换控制信号切换电容器的有效总电容;以及第二电路，包括 用于向输出端子提供预定的直流电压并基于第二时间常数切换控制信号切换电阻器的有效电阻值的电阻器。 控制电路根据所述增益控制放大器的增益控制的变化来输出增益切换控制信号以及第一和第二时间常数切换控制信号。

公开(公告)号：US07437132B2

公开(公告)日：2008-10-14

申请号：US11212732

申请日：2005-08-29

Applicant: Mikio Hanabusa ,  Kazunori Watanabe ,  Kaoru Ishida

Inventor： Mikio Hanabusa ,  Kazunori Watanabe ,  Kaoru Ishida

IPC: H04B1/16 ,  H04B17/00

CPC classification number: G07B15/063 ,  H04W52/0245 ,  Y02D70/142 ,  Y02D70/164

Abstract: A receiving device includes a receiver circuit for outputting a received signal as a reception electric field intensity signal, an operation control circuit for controlling an operation of the receiver circuit, and an intermittent reception control circuit for outputting a periodic signal. A comparator circuit holds a first threshold indicating that the receiving device has entered a communication area and a second threshold indicating a start of a continuous electric field intensity measurement. If the reception electric field intensity signal is lower than the second threshold, the operation control circuit makes the receiver circuit perform intermittent operation. If the reception electric field intensity signal is equal to or higher than the second threshold, the operation control circuit makes the receiver circuit perform a continuous operation. If the reception electric field intensity signal is equal to or higher than the first threshold, the operation control circuit makes the demodulation circuit perform an operation.

Abstract translation: 接收装置包括用于输出接收信号作为接收电场强度信号的接收机电路，用于控制接收机电路的操作的操作控制电路和用于输出周期性信号的间歇接收控制电路。 比较器电路保持指示接收装置已经进入通信区域的第一阈值和指示连续电场强度测量的开始的第二阈值。 如果接收电场强度信号低于第二阈值，则操作控制电路使接收机电路执行间歇操作。 如果接收电场强度信号等于或高于第二阈值，则操作控制电路使接收器电路执行连续操作。 如果接收电场强度信号等于或高于第一阈值，则操作控制电路使解调电路进行操作。