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。

公开(公告)号：US08369802B2

公开(公告)日：2013-02-05

申请号：US12421423

申请日：2009-04-09

Applicant: Maki Nakamura ,  Kaoru Ishida

Inventor： Maki Nakamura ,  Kaoru Ishida

IPC: H04B1/02

CPC classification number: H04B1/0475 ,  H03C5/00 ,  H03F1/0222 ,  H03F2200/447

Abstract: The polar modulation apparatus of the present invention can control the output power of a transmission signal over a wide range and compensate characteristic degradation reliably upon temperature change. Polar modulation transmission apparatus 100 is provided with: temperature sensor 120; temperature compensation section 160-1 that corrects an amplitude signal and performs temperature compensation for transmission power amplification section 190; temperature compensation section 160-2 that corrects a power amplification signal and performs temperature compensation for power adjustment section 180; and correction value setting section 130 that sets correction values for temperature compensation section 160-1 and temperature compensation section 160-2, and, while only the amplitude signal is corrected according to a measurement result in temperature sensor 120 in the first mode, the amplitude signal and the power adjustment signal are corrected according to a measurement result in the second mode.

Abstract translation: 本发明的极化调制装置可以在宽范围内控制发送信号的输出功率，并在温度变化时可靠地补偿特性劣化。 极调制传输装置100设置有：温度传感器120; 温度补偿部160-1，其校正振幅信号，并对发送功率放大部190执行温度补偿; 温度补偿部160-2，其对功率放大信号进行校正，对功率调整部180进行温度补偿; 以及校正值设定部130，其对温度补偿部160-1和温度补偿部160-2设定校正值，在仅在第一模式下，根据温度传感器120的测量结果对幅度信号进行校正时，振幅 信号和功率调整信号根据第二模式中的测量结果被校正。

公开(公告)号：US08219050B1

公开(公告)日：2012-07-10

申请号：US13433705

申请日：2012-03-29

Applicant: Takatoshi Kawai ,  Kaoru Ishida

Inventor： Takatoshi Kawai ,  Kaoru Ishida

IPC: H04B1/04

CPC classification number: H04B1/0475 ,  H03F1/34 ,  H03F3/24 ,  H04B2001/0433

Abstract: A radio transmission apparatus according to the present invention detects an output current of a power supply section that varies in response to a variation of the output impedance of an amplification section, and corrects a distortion of the input/output characteristic of the amplification section by using an LUT corresponding to the detected output current. In addition, a threshold used for switching an LUT is caused to be different depending on a switching direction between LUTs, thereby suppressing frequent occurrence of switching of the LUT.

公开(公告)号：US20120163500A1

公开(公告)日：2012-06-28

申请号：US13391704

申请日：2010-04-07

Applicant: Yukihiro Omoto ,  Kaoru Ishida ,  Hiroshi Komori

Inventor： Yukihiro Omoto ,  Kaoru Ishida ,  Hiroshi Komori

IPC: H04L27/36

CPC classification number: H03F3/24 ,  H03F1/02 ,  H03F1/0222 ,  H03F1/0277 ,  H03F3/189 ,  H03F2200/336 ,  H03F2200/504 ,  H03G3/004 ,  H03G3/3042 ,  H04B1/04 ,  H04B1/0483

Abstract: Provided is a transmitter apparatus including: a signal conversion section for, in polar modulation, converting input data into an amplitude-component signal and a phase-component signal, and in quadrature modulation, converting input data into an in-phase component signal and a quadrature component signal; a carrier wave generation section for outputting a carrier wave; a mixer section for, in quadrature modulation, generating a quadrature modulation signal; a regulator for, in polar modulation, outputting a supply voltage control signal; and a power amplifier for, in polar modulation, amplifying the supply voltage control signal and superimposing the resultant signal onto the carrier wave, thereby generating a transmission signal, wherein in polar modulation, the carrier wave generation section outputs the carrier wave modulated with respect to phase component, and in quadrature modulation, the carrier wave generation section outputs the carrier wave that is yet to be modulated.

Abstract translation: 提供一种发射机装置，包括：信号转换部分，用于在极性调制中将输入数据转换为振幅分量信号和相位分量信号，并在正交调制中将输入数据转换为同相分量信号，以及 正交分量信号; 用于输出载波的载波产生部分; 用于正交调制的混频器部分，产生正交调制信号; 用于在极性调制中输出电源电压控制信号的调节器; 以及功率放大器，用于在极性调制中放大电源电压控制信号并将所得到的信号叠加到载波上，从而产生传输信号，其中在极坐标调制中，载波产生部分输出相对于 在正交调制中，载波生成部输出尚未被调制的载波。

公开(公告)号：US20110291755A1

公开(公告)日：2011-12-01

申请号：US13148239

申请日：2010-11-18

Applicant: Tomoya Urushihara ,  Kaoru Ishida ,  Akihiko Matsuoka

Inventor： Tomoya Urushihara ,  Kaoru Ishida ,  Akihiko Matsuoka

IPC: H03G3/20

CPC classification number: H03F3/24 ,  H03F1/02

Abstract: When switching the mode of a power amplifier between compressed mode and uncompressed mode, accurate transmission power control is realized. A transmission power control method includes setting a power setting value of mode to switch to, such that an inter-mode output power error is canceled (equal to step ST21), calculating an intra-mode output power error from the power setting value of the mode to switch to (equal to step ST23), calculating a gain linearity value based on the power setting value of the mode to switch to and an output power error of the intra-mode (equal to step ST24), and resetting the power setting value of the mode to switch to based on the gain linearity value (equal to steps ST25 and 26).

Abstract translation: 当在压缩模式和未压缩模式之间切换功率放大器的模式时，实现精确的发射功率控制。 发送功率控制方法包括：将模式的功率设定值设定为切换，使得模式间输出功率误差被消除（等于步骤ST21），根据所述功率设定值计算模式内输出功率误差 模式切换到（等于步骤ST23），基于切换模式的功率设定值和帧内模式的输出功率误差（等于步骤ST24）来计算增益线性度值，并且重新设置功率设置 基于增益线性值切换到的模式的值（等于步骤ST25和26）。

公开(公告)号：US07957703B2

公开(公告)日：2011-06-07

申请号：US12063889

申请日：2006-10-13

Applicant: Toshifumi Nakatani ,  Hiroyuki Nakamura ,  Kaoru Ishida

Inventor： Toshifumi Nakatani ,  Hiroyuki Nakamura ,  Kaoru Ishida

IPC: H04B1/46

CPC classification number: H04W52/028 ,  Y02D70/142

Abstract: A current control circuit (5) recognizes whether or not a transmission signal is transmitted based on a control signal outputted from a transmission signal control circuit (4). When the transmission signal is transmitted, the current control circuit (5) controls a current flowing into a reception circuit (3) in accordance with control information representing any of at least two modes where the transmission signal is transmitted. When no transmission signal is transmitted, the current control circuit (5) controls the current flowing into the reception circuit (3) in accordance with control information representing a mode where no transmission signal is transmitted.

Abstract translation: 电流控制电路（5）基于从发送信号控制电路（4）输出的控制信号来识别发送信号是否被发送。 当传输信号被发送时，电流控制电路（5）根据表示传输信号发送的至少两种模式中的任何一种的控制信息来控制流入接收电路（3）的电流。 当不发送发送信号时，电流控制电路（5）根据表示不发送发送信号的模式的控制信息来控制流入接收电路（3）的电流。

公开(公告)号：US07541879B2

公开(公告)日：2009-06-02

申请号：US11902597

申请日：2007-09-24

Applicant: Akira Kato ,  Kaoru Ishida

Inventor： Akira Kato ,  Kaoru Ishida

IPC: H03L7/00

CPC classification number: H03L7/085 ,  H03C3/09

Abstract: A nonlinearity-compensated section has a pre-set compensation table containing a measured value of a voltage vtc, outputted from a loop filter, which is changed accordingly with respect to a change in a voltage vtfc outputted from a frequency controlling section. The nonlinearity-compensated section sets, in the compensation table, the voltage vtfc of an oscillatory frequency oscillated by a VCO and the voltage vtc associated therewith as reference voltages, and creates a look-up table containing voltage differences obtained by subtracting the above-described reference voltages from the voltages vtfc and vtc, respectively. Thereafter, the nonlinearity-compensated section extracts a compensation value corresponding to the voltage vtc actually outputted from the loop filter by means of the look-up table, and adds the compensation value to an input modulated signal adjusted by a multiplier so as to be outputted.

Abstract translation: 非线性补偿部分具有包含从环路滤波器输出的电压vtc的测量值的预设补偿表，其相对于从频率控制部分输出的电压vtfc的变化而相应地改变。 非线性补偿部分在补偿表中设置由VCO振荡的振荡频率的电压vtfc和与其相关联的电压vtc作为参考电压，并且创建包含通过减去上述获得的电压差的查找表 分别来自电压vtfc和vtc的参考电压。 此后，非线性补偿部分通过查找表提取与环路滤波器实际输出的电压vtc对应的补偿值，并将补偿值与由乘法器调整的输入调制信号相加，以便输出 。

公开(公告)号：US07490182B2

公开(公告)日：2009-02-10

申请号：US11399370

申请日：2006-04-07

Applicant: Shoji Yoshida ,  Kaoru Ishida ,  Hiroshi Yajima

Inventor： Shoji Yoshida ,  Kaoru Ishida ,  Hiroshi Yajima

IPC: G06F13/00 ,  H04J14/00

CPC classification number: H04B1/006 ,  H04W88/06

Abstract: A switching control circuit includes a serial-to-parallel converter, a rewritable storage device, and a decoder. The serial-to-parallel converter performs serial-to-parallel conversion for converting an inputted first control signal into a first parallel signal, and outputs the first parallel signal. The rewritable storage device has a write mode and a read mode selectively switched over in response to a storage mode switching signal, stores therein data of the first parallel signal in the write mode, and outputs the stored data as a second parallel signal in the read mode. In the read mode, the decoder decodes the first control signal and the second parallel signal to generate and output a plurality of element control signals to a plurality of elements, respectively. In the write mode, the decoder holds the plurality of element control signals generated in the read mode.

Abstract translation: 开关控制电路包括串并转换器，可重写存储装置和解码器。 串并转换器执行串行到并行转换，用于将输入的第一控制信号转换为第一并行信号，并输出第一并行信号。 可重写存储装置具有响应于存储模式切换信号选择性地切换的写入模式和读取模式，在写入模式中存储第一并行信号的数据，并将所存储的数据作为第二并行信号输出到读取的 模式。 在读取模式中，解码器对第一控制信号和第二并行信号进行解码，以分别产生并输出多个元件控制信号到多个元件。 在写入模式中，解码器保持在读取模式下生成的多个元件控制信号。

公开(公告)号：US20080031384A1

公开(公告)日：2008-02-07

申请号：US11882251

申请日：2007-07-31

Applicant: Yoshihiro Hara ,  Katsuhiko Morioka ,  Kaoru Ishida

Inventor： Yoshihiro Hara ,  Katsuhiko Morioka ,  Kaoru Ishida

IPC: H03C1/62 ,  H03C3/02 ,  H04L27/04

CPC classification number: H04L27/368 ,  H03C5/00 ,  H04L27/361

Abstract: Provided is a transmission circuit 1 which is capable of precisely compensating for an offset characteristic of an amplitude modulation section 15, and operating with low distortion and high efficiency over a wide output electric power range. A signal generation section 11 outputs an amplitude signal and an angle modulation signal. An amplitude amplifying section 14 inputs, to the amplitude modulation section 15, a signal corresponding to a magnitude of the amplitude signal having been inputted. The amplitude modulation section 15 amplitude-modulates the angle modulation signal with the signal inputted from the amplitude amplifying section 14, and outputs a resultant signal as a modulation signal. The power measuring section 18 measures an output power of the amplitude modulation section 15. An offset compensation section 12 reads an offset compensation value from a memory 13 in accordance with the output power of the amplitude modulation section 15, and adds the read offset compensation value to the amplitude signal.

Abstract translation: 提供了能够精确地补偿振幅调制部15的偏移特性并且在宽输出功率范围内以低失真和高效率工作的发送电路1。 信号生成部11输出振幅信号和角度调制信号。 振幅放大部分14向幅度调制部分15输入与已经输入的幅度信号的大小对应的信号。 振幅调制部15利用从幅度放大部14输入的信号对角度调制信号进行振幅调制，并输出合成信号作为调制信号。 功率测量部18测量振幅调制部15的输出功率。 偏移补偿部分12根据幅度调制部分15的输出功率从存储器13读取偏移补偿值，并将读出的偏移补偿值与振幅信号相加。

公开(公告)号：US20080031381A1

公开(公告)日：2008-02-07

申请号：US11878902

申请日：2007-07-27

Applicant: Toru Matsuura ,  Kaoru Ishida

Inventor： Toru Matsuura ,  Kaoru Ishida

IPC: H04K1/02

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: Provided is a transmission circuit 1 which precisely compensates for an offset characteristic of an amplitude modulation section 15 and which operates with low distortion and high efficiency over a wide output power range. A signal generation section 11 outputs an amplitude signal and an angle-modulated signal. An amplitude amplifying section 14 supplies, to the amplitude modulation section 15, a voltage corresponding to a magnitude of an inputted amplitude signal. The amplitude modulation section 15 amplitude-modulates the angle-modulated signal by the voltage supplied from the amplitude amplifying section 14, thereby outputting a resultant signal as a modulation signal. A temperature measuring section measures a temperature of the amplitude modulation section 15. An offset compensation section 12 calculates an offset compensation value in accordance with a change, in temperature of the amplitude modulation section 15, from the temperature of the amplitude modulation section 15 in an initial state, and adds the calculated offset compensation value to the amplitude signal.

Abstract translation: 提供了一种传输电路1，其精确地补偿幅度调制部分15的偏移特性，并且在宽输出功率范围内以低失真和高效率工作。 信号生成部11输出振幅信号和角度调制信号。 振幅放大部分14向幅度调制部分15提供与所输入的振幅信号的大小相对应的电压。 振幅调制部15通过从幅度放大部14提供的电压对角度调制信号进行振幅调制，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15的温度。 偏移补偿部12根据振幅调制部15的温度的变化，根据振幅调制部15的初始状态的温度来计算偏移补偿值，并将计算出的偏移补偿值与振幅信号 。