公开(公告)号：US06856196B2

公开(公告)日：2005-02-15

申请号：US10600594

申请日：2003-06-23

申请人： Yoichi Okubo ,  Kiyoshi Funada ,  Yasuo Sera ,  Masaki Suto ,  Masato Horaguchi ,  Kazuyoshi Sato ,  Toshio Takada ,  Tetsuhiko Miyatani ,  Naoki Hongo

发明人： Yoichi Okubo ,  Kiyoshi Funada ,  Yasuo Sera ,  Masaki Suto ,  Masato Horaguchi ,  Kazuyoshi Sato ,  Toshio Takada ,  Tetsuhiko Miyatani ,  Naoki Hongo

IPC分类号： H03F1/32 ,  H04B1/04 ,  H03G3/20 ,  H03F1/26

CPC分类号： H03F1/3247 ,  H03F1/3282 ,  H03F2200/102

摘要： A distortion compensator that compensates for distortion arising in a main amplifier 10 that amplifies a signal effectively compensates for third order distortion which is unbalanced between the higher frequency band and lower frequency band. An amplitude detector 3 detects the level of a signal subject to amplification and a signal level change direction detection means 7 detects the direction of change in the level of the signal. A signal level change control means 4-8 stores the correspondence between the signal level and the mode of changing the signal in order to compensate for distortion for when the direction of change in the signal level is positive and when it is negative, and controls a signal change means 9 so that the amplitude and phase of the signal is changed in a mode of changing the signal corresponding to the detected direction of change in the signal level and the detected signal level. A signal change control content updating means 11-13 updates the content of this correspondence so that the distortion contained in the signal after amplification is reduced.

摘要翻译： 补偿放大信号的主放大器10中出现的失真的失真补偿器有效地补偿在较高频带和较低频带之间不平衡的三阶失真。 振幅检测器3检测经放大的信号的电平，信号电平变化方向检测装置7检测信号电平的变化方向。 信号电平变化控制装置4-8存储信号电平和改变信号的模式之间的对应关系，以便当信号电平的变化方向为正时和当它为负时补偿失真，并且控制一个 信号改变装置9，使得信号的幅度和相位在改变与检测到的信号电平方向和检测信号电平相对应的信号的模式下改变。 信号改变控制内容更新装置11-13更新该对应的内容，使得放大后的信号中包含的失真减少。

公开(公告)号：US06753728B2

公开(公告)日：2004-06-22

申请号：US10153630

申请日：2002-05-24

申请人： Yoichi Okubo ,  Kiyoshi Funada ,  Masaki Suto ,  Masato Horaguchi ,  Toshio Takada ,  Naoki Hongo

发明人： Yoichi Okubo ,  Kiyoshi Funada ,  Masaki Suto ,  Masato Horaguchi ,  Toshio Takada ,  Naoki Hongo

IPC分类号： H03F126

CPC分类号： H03F1/3229 ,  H03F1/32 ,  H03F1/3247 ,  H03F2200/102 ,  H03F2201/3206

摘要： A distortion reducing circuit compensates an upper side third-order distortion and a lower side third-order distortion produced by an amplifier for amplifying a fundamental signal including multiple frequency components. The distortion reducing circuit includes a second harmonic reflection coefficient regulation circuit, installed at an output side of the amplifier, for regulating reflection coefficients for multiple frequency components included in a second harmonic signal to have a constant value.

摘要翻译： 失真减小电路补偿由用于放大包括多个频率分量的基本信号的放大器产生的上侧三阶失真和下侧三次失真。 失真减小电路包括安装在放大器的输出侧的二次谐波反射系数调节电路，用于调节包括​​在二次谐波信号中的多个频率分量的反射系数以具有恒定值。

公开(公告)号：US06741128B2

公开(公告)日：2004-05-25

申请号：US10131131

申请日：2002-04-25

申请人： Yoichi Okubo ,  Kiyoshi Funada ,  Masaki Suto ,  Masato Horaguchi ,  Toshio Takada ,  Naoki Hongo

发明人： Yoichi Okubo ,  Kiyoshi Funada ,  Masaki Suto ,  Masato Horaguchi ,  Toshio Takada ,  Naoki Hongo

IPC分类号： H03F126

CPC分类号： H03F1/3247 ,  H03F1/3205 ,  H03F1/3282 ,  H03F1/3288 ,  H03F2200/102 ,  H03F2201/3206 ,  H03F2201/3233

摘要： There is provided a distortion canceling circuit for reducing an unbalance between a higher and a lower 3rd order distortion at frequencies of (2·f2−f1) and (2·f1−f2), respectively, the distortions being generated by an amplifier which amplifies an input signal having at least two frequency components, i.e., f1 and f2. Phase modulation control means supply a control signal, which has a difference frequency of (f2−f1), to phase modulation means, the control signal being generated based on the amplified input signal outputted from the amplifier. The phase modulation means performs phase modulation on the amplified input signal based on the supplied control signal to thereby generate a higher and a lower side-band signal having frequencies of (2·f2−f1) and (2·f1−f2), respectively, each of which has an identical amplitude and a phase difference of 180° with respect to each other. The distortion canceling circuit reduces the unbalance by using the side-band signals.

摘要翻译： 提供了一种用于减小在（2.f2-f1）和（2.f1-f2）频率处的较高和较低三阶失真之间的不平衡的失真消除电路，失真是由放大器 具有至少两个频率分量的输入信号，即f1和f2。 相位调制控制装置将具有差分频率（f2-f1）的控制信号提供给相位调制装置，该控制信号是根据从放大器输出的放大输入信号产生的。 相位调制装置基于所提供的控制信号对放大的输入信号执行相位调制，从而分别产生频率为（2.f2-f1）和（2.f1-f2）的较高和较低的边带信号 ，其中的每一个具有相同的振幅和相对于彼此为180°的相位差。 失真消除电路通过使用边带信号来减少不平衡。

公开(公告)号：US06968210B2

公开(公告)日：2005-11-22

申请号：US10176252

申请日：2002-06-20

申请人： Yoichi Okubo ,  Masaki Suto ,  Noriyuki Kagaya ,  Takashi Uchida ,  Kiyoshi Funada ,  Kotaro Takenaga

发明人： Yoichi Okubo ,  Masaki Suto ,  Noriyuki Kagaya ,  Takashi Uchida ,  Kiyoshi Funada ,  Kotaro Takenaga

IPC分类号： H05K7/20 ,  H01Q21/28 ,  H04B1/08 ,  H04B1/18 ,  H04B1/74 ,  H04B7/04 ,  H04B7/26 ,  H04B1/38

CPC分类号： H04B1/18 ,  H01Q21/28 ,  H04B7/0491

摘要： The present invention relates to an economical and highly reliable receiving apparatus for receiving radio signals transmitted from a mobile communication terminal within radio zone. The receiving apparatus has antenna sections that receive radio signals transmitted from the mobile communication terminal and are provided in each of a plurality of sectors divided from the radio zone, and receiving units that are provided in each of the antenna sections and that perform a predetermined process to the radio signals received by the antenna section.

摘要翻译： 本发明涉及一种用于接收从无线电区域内的移动通信终端发送的无线电信号的经济且高度可靠的接收装置。 接收装置具有接收从移动通信终端发送的无线电信号的天线部分，并且设置在从无线电区域划分的多个扇区中的每一个中，以及设置在每个天线部分中并执行预定处理的接收单元 到由天线部分接收的无线电信号。

公开(公告)号：US06727751B2

公开(公告)日：2004-04-27

申请号：US10246524

申请日：2002-09-19

申请人： Hiroichi Yonenaga ,  Kiyoshi Funada ,  Kotaro Takenaga

发明人： Hiroichi Yonenaga ,  Kiyoshi Funada ,  Kotaro Takenaga

IPC分类号： H03F100

CPC分类号： H03F1/3235

摘要： A distortion compensation amplifier has a distortion detection loop that divides an input signal, amplifies one divided signal with an amplifier and uses the amplified signal and another divided signal to detect a distortion component generated and introduced into the amplified signal in the amplifier. The amplifier additionally has a distortion removal loop that removes the detected distortion component from the amplified signal produced by the amplifier. The distortion detection loop comprises a filter for reducing the distortion component of the amplified signal output by the amplifier that was generated and introduced into the amplified signal in the amplifier and detects the distortion component reduced by the filter. The distortion removal loop removes from the amplified signal the detected distortion component that was produced by the amplifier and reduced by the filter.

摘要翻译： 失真补偿放大器具有对输入信号进行分频的失真检测环路，用放大器放大一个分频信号，并使用放大信号和另一分频信号来检测在放大器中产生并被引入到放大信号中的失真分量。 放大器还具有失真去除环路，其从由放大器产生的放大信号中去除检测到的失真分量。 失真检测环路包括滤波器，用于减小由放大器输出的放大信号的失真分量，该放大信号被产生并被引入放大器中的放大信号，并检测由滤波器减小的失真分量。 失真消除环路从放大信号中去除由放大器产生的并被滤波器减小的检测到的失真分量。

公开(公告)号：US06417731B1

公开(公告)日：2002-07-09

申请号：US09820293

申请日：2001-03-29

申请人： Kiyoshi Funada ,  Junichiro Yamakawa ,  Junya Dosaka ,  Yasuo Sera

发明人： Kiyoshi Funada ,  Junichiro Yamakawa ,  Junya Dosaka ,  Yasuo Sera

IPC分类号： H03F126

CPC分类号： H03F1/3229 ,  H03F1/3247 ,  H03F2201/3212

摘要： Excellent compensation of the distortion is realized with a distortion-compensated amplifier device that compensates a distortion that is generated in a main amplifier, through the respective operations of a circuit comprised of a distortion-detecting loop and a distortion-compensating loop and a pre-distortor. In a distortion-detecting loop, the signal is distributed. With respect to one distribution signal, a vector adjuster (2) performs vector adjustment of it and the pre-distortor (3) generates a distortion. A main amplifier (4) amplifies this signal. The resulting amplification signal and the other distribution are composed, whereby a distortion component is detected. In a distortion-compensating loop, that amplification signal and this distortion component are composed to thereby eliminate the distortion component from the amplification signal. In a control part, a distortion component level detecting means (12) detects the levels of the distortion component that is detected. Vector adjusting/controlling means (14) and (15) controls the vector adjusting means (2) to thereby make the average value of those levels small. On the other hand, pre-distortor controlling means (16) and (17) controls the pre-distortor (3) to thereby make the peak values of those levels.

摘要翻译： 通过失真补偿放大器装置来实现对失真的良好补偿，所述失真补偿放大器装置通过由失真检测环路和失真补偿环路构成的电路的相应操作来补偿主放大器中产生的失真， 扭曲者 在失真检测环路中，信号被分配。 对于一个分配信号，向量调整器（2）执行向量调整，并且预失真器（3）产生失真。 主放大器（4）放大该信号。 构成所得到的放大信号和其他分布，由此检测失真分量。 在失真补偿环路中，构成放大信号和失真分量，从而消除放大信号的失真分量。 在控制部分中，失真分量电平检测装置（12）检测检测到的失真分量的电平。 矢量调整/控制装置（14）和（15）控制矢量调节装置（2），从而使这些级别的平均值变小。 另一方面，预失真器控制装置（16）和（17）控制预失真器（3），从而形成这些电平的峰值。

公开(公告)号：US06326840B1

公开(公告)日：2001-12-04

申请号：US09482554

申请日：2000-01-13

申请人： Kiyoshi Funada ,  Nobuyasu Shimada

发明人： Kiyoshi Funada ,  Nobuyasu Shimada

IPC分类号： H03F366

CPC分类号： H03F1/3235

摘要： In a distortion detecting loop, an inputted RF signal is branched into two input signals by a distributor, one of the branched input signals is amplified by a main amplifier whose output signal is branched by a directional coupler, the branched output signal from the amplifier and the other branched input signal are inverted relatively to each other and combined together to extract a distortion component signal produced by the main amplifier with a detector. If the amplitude of the distortion component signal is greater than a predetermined threshold, then a control circuit changes the distortion component signal to a substitute signal having an amplitude smaller than the predetermined threshold, and controls a vector adjuster based on the amplitudes of the detected distortion component signal and the substitute signal in order to reduce the amplitude of the detected distortion component signal.

摘要翻译： 在失真检测回路中，输入的RF信号由分配器分支为两个输入信号，分支输入信号中的一个由主放大器放大，其主要放大器的输出信号由定向耦合器分支，来自放大器的分支输出信号和 另一分支输入信号彼此相对地反相并组合在一起，以检测器提取由主放大器产生的失真分量信号。 如果失真分量信号的振幅大于预定阈值，则控制电路将失真分量信号改变为具有小于预定阈值的振幅的替代信号，并且基于检测到的失真的幅度来控制矢量调节器 分量信号和替代信号，以便减小检测到的失真分量信号的振幅。