公开(公告)号：US07493091B2

公开(公告)日：2009-02-17

申请号：US11477855

申请日：2006-06-30

Applicant: Toru Matsuura ,  Hisashi Adachi ,  Kaoru Ishida

Inventor： Toru Matsuura ,  Hisashi Adachi ,  Kaoru Ishida

IPC: H04B1/02 ,  H04B1/04

CPC classification number: H04L27/362 ,  H03F1/02 ,  H03F3/24 ,  H03F3/245 ,  H03G3/001 ,  H03G3/004 ,  H03G3/3047 ,  H04B2001/045 ,  H04L27/206 ,  H04W52/22 ,  H04W52/225 ,  H04W52/228 ,  H04W52/36

Abstract: A transmission circuit operating at a high efficiency and a low distortion is provided. A signal generation section 11 generates a vector signal and an amplitude signal. A vector modulation section 13 performs vector modulation on the vector signal. An amplification section 15 amplifies the signal processed with the vector modulation. A signal processing section 12 performs predetermined signal processing on the amplitude signal and outputs the resultant signal. A regulator 14 controls a voltage to be supplied to the amplification section 15 based on the magnitude of the signal which is output from the signal processing section 12. The signal processing section 12 determines whether or not the amplitude signal exceeds a threshold value at an interval of a predetermined time period, selects a discrete value to be output based on the determination result, and outputs a signal having the selected discrete value.

Abstract translation: 提供以高效率和低失真运行的传输电路。 信号生成部11生成矢量信号和振幅信号。 矢量调制部13对矢量信号进行矢量调制。 放大部分15放大用矢量调制处理的信号。 信号处理部12对振幅信号进行规定的信号处理，并输出合成信号。 调节器14基于从信号处理部分12输出的信号的大小来控制要提供给放大部分15的电压。信号处理部分12确定幅度信号是否以一定间隔超过阈值 根据确定结果选择要输出的离散值，并输出具有所选离散值的信号。

公开(公告)号：US20050197084A1

公开(公告)日：2005-09-08

申请号：US11072266

申请日：2005-03-07

Applicant: Toshinori Hamasaki ,  Kaoru Ishida

Inventor： Toshinori Hamasaki ,  Kaoru Ishida

IPC: H03D7/14 ,  H04B7/00

CPC classification number: H03D7/1425 ,  H03D7/1433 ,  H03D7/1458 ,  H03D7/165 ,  H03D2200/0043 ,  H03D2200/0047

Abstract: A mixer circuit is provided with a quadrature demodulator including a Gilbert cell in which a first differential amplifier and a switching circuit are vertically stacked for connection and a bypass circuit including a second differential amplifier having a pair of differential input terminals short-circuited with each other, and provided in parallel with the first differential amplifier. Correction of a DC offset is performed by inactivating the first differential amplifier and activating the second differential amplifier, and detecting the DC offset under such state.

Abstract translation: 混频器电路设置有包括吉尔伯特单元的正交解调器，其中第一差分放大器和开关电路被垂直堆叠用于连接，并且旁路电路包括具有彼此短路的一对差分输入端子的第二差分放大器 并且与第一差分放大器并联提供。 通过停用第一差分放大器并激活第二差分放大器以及在这种状态下检测DC偏移来执行DC偏移的校正。

公开(公告)号：US06940346B2

公开(公告)日：2005-09-06

申请号：US10433582

申请日：2001-11-30

Applicant: Masayuki Miyaji ,  Kaoru Ishida ,  Toshimitsu Matsuyoshi ,  Hisashi Adachi ,  Seiji Fujiwara

Inventor： Masayuki Miyaji ,  Kaoru Ishida ,  Toshimitsu Matsuyoshi ,  Hisashi Adachi ,  Seiji Fujiwara

IPC: H03F1/32 ,  H03F3/66 ,  H03F1/26

CPC classification number: H03F1/3229

Abstract: The conventional feedforward amplifier is unable to suppress distortion components efficiently. The present invention provides a feedforward amplifier wherein the vector adjustor is adjusted so that (1) suppression is performed on only the distortion component generated within a predetermined frequency range out of the range of frequencies to be suppressed in which distortion components to be suppressed occur or (2) the suppression of the distortion component generated within the predetermined frequency range is greater than the suppression of the distortion component generated within the frequency range other than the predetermined frequency range out of the range of frequencies to be suppressed, and the pre-distortion circuit is adjusted so that at least the distortion component generated within the frequency range other than the predetermined frequency range is suppressed.

Abstract translation: 传统的前馈放大器不能有效地抑制失真分量。 本发明提供一种前馈放大器，其中矢量调节器被调整为使得（1）仅对在要抑制的失真分量发生的待抑制的频率范围内的预定频率范围内产生的失真分量进行抑制，或者 （2）在预定频率范围内产生的失真分量的抑制大于在要抑制的频率范围之外的预定频率范围之外的频率范围内产生的失真分量的抑制，并且预失真 电路被调整为至少抑制了在预定频率范围之外的频率范围内产生的失真分量。

公开(公告)号：US06933780B2

公开(公告)日：2005-08-23

申请号：US09772883

申请日：2001-01-31

Applicant: Seiji Fujiwara ,  Toru Matsuura ,  Kaoru Ishida ,  Makoto Sakakura

Inventor： Seiji Fujiwara ,  Toru Matsuura ,  Kaoru Ishida ,  Makoto Sakakura

IPC: H03F1/32 ,  H03F1/26

CPC classification number: H03F1/3276

Abstract: A predistortion circuit has an input terminal for inputting a predetermined signal; a nonlinear device directly or indirectly connected to the input terminal; a bias supply circuit for applying a voltage to the nonlinear device; specific-frequency suppressing means connected to one side or both sides of the nonlinear device directly without another intervening device and of suppressing all or part of such frequencies that are from a frequency corresponding to DC to a frequency corresponding to an occupied band width of an input signal inputted to the input terminal and/or suppressing at least one higher harmonic frequency of a carrier wave of the input signal; and an output terminal for outputting a signal.

Abstract translation: 预失真电路具有用于输入预定信号的输入端子; 直接或间接连接到输入端的非线性装置; 用于向非线性装置施加电压的偏置电源电路; 特定频率抑制装置直接连接到非线性装置的一侧或两侧，而没有另一个中间装置，并且将来自对应于DC的频率的全部或部分频率抑制到对应于输入的占用带宽的频率 输入到输入端子的信号和/或抑制输入信号的载波的至少一个高次谐波频率; 以及用于输出信号的输出端子。

公开(公告)号：US20050046477A1

公开(公告)日：2005-03-03

申请号：US10964762

申请日：2004-10-15

Applicant: Toshimitsu Matsuyoshi ,  Kaoru Ishida ,  Seiji Fujiwara

Inventor： Toshimitsu Matsuyoshi ,  Kaoru Ishida ,  Seiji Fujiwara

IPC: H03F1/32 ,  H03F1/26

CPC classification number: H03F1/3247 ,  H03F2200/102

Abstract: A power amplifier capable of compensating for distortion by pre-distortion and achieving a large distortion suppressing effect even if IM3L components and IM3U components occurring at the power amplifier have a large level difference. A power amplifying circuit 117 amplifies an original signal. An envelope detector 119 generates an envelope signal having components identical to envelope components included in the original signal. Based on the original signal a distortion signal generating circuit 112 generates a distortion signal for canceling distortion components occurring while the original signal is amplified by the power amplifying circuit 117. In a power combiner 116, the envelope signal is injected to the original signal, thereby eliminating the asymmetric characteristic of the distortion components. In the power amplifying circuit 117, the distortion signal is injected to the original signal, thereby suppressing the distortion components.

Abstract translation: 功率放大器能够通过预失真来补偿失真，并且即使在功率放大器处出现的IM3L分量和IM3U分量具有较大的电平差，也能实现大的失真抑制效果。 功率放大电路117放大原始信号。 包络检测器119产生具有与包含在原始信号中的包络分量相同的分量的包络信号。 基于原始信号，失真信号发生电路112产生用于消除由功率放大电路117放大原始信号时发生的失真分量的失真信号。在功率合成器116中，将包络信号注入原始信号，从而 消除了失真分量的不对称特性。 在功率放大电路117中，将失真信号注入原始信号，从而抑制失真成分。

公开(公告)号：US20050045989A1

公开(公告)日：2005-03-03

申请号：US10928503

申请日：2004-08-27

Applicant: Tsukasa Fukui ,  Kaoru Ishida

Inventor： Tsukasa Fukui ,  Kaoru Ishida

IPC: H01L21/822 ,  H01L23/522 ,  H01L27/04 ,  H01L27/08 ,  H01Q1/38 ,  H01L21/8222 ,  H01L29/00

CPC classification number: H01L23/5225 ,  H01L23/5227 ,  H01L27/08 ,  H01L2924/0002 ,  H01L2924/3011 ,  H01Q1/38 ,  H01L2924/00

Abstract: A semiconductor device includes: a semiconductor substrate in which a semiconductor element is formed; a multilayer structured wiring layer that is provided on the semiconductor substrate, the wiring layer forming a structure connected with the semiconductor element; a spiral inductor that is formed in at least one layer of the wiring layer; and a connection terminal formed in an uppermost layer of the wiring layer for establishing connection from the wiring layer to an outside such as a printed board. A shielding wiring pattern is disposed between the spiral inductor and the connection terminal, the shielding wiring pattern functioning as an electromagnetic shield for the uppermost layer of the wiring layer. The shielding wiring pattern absorbs a change in electrical field caused by a potential change in the connection terminal, providing a shielding structure which suppresses the superposing of noise and an unnecessary signal onto the spiral inductor from the connection terminal.

Abstract translation: 半导体器件包括：形成半导体元件的半导体衬底; 设置在所述半导体基板上的多层结构化布线层，所述布线层形成与所述半导体元件连接的结构; 形成在所述布线层的至少一层中的螺旋电感器; 以及形成在布线层的最上层的连接端子，用于建立从布线层到诸如印刷板的外部的连接。 屏蔽布线图案设置在螺旋电感器和连接端子之间，屏蔽布线图形用作布线层最上层的电磁屏蔽。 屏蔽布线图案吸收由连接端子的电位变化引起的电场变化，提供屏蔽结构，其抑制了从连接端子向螺旋电感器叠加噪声和不必要的信号。

公开(公告)号：US06813317B2

公开(公告)日：2004-11-02

申请号：US09732913

申请日：2000-12-11

Applicant: Kaoru Ishida ,  Shin'ichi Kugou

Inventor： Kaoru Ishida ,  Shin'ichi Kugou

IPC: H04L2728

CPC classification number: H04L5/06

Abstract: A multicarrier transmitting method that includes inputting n input signals, generating carriers corresponding to the n input signals, modulating the carriers into n modulated signals and generating at least one additional signal having a frequency outside band of the n modulated signals. The method also includes adjusting a level and a phase of the generated additional signal, outputting a multiplexed signal by adding up the n modulated signals and the adjusted additional signal, amplifying the multiplexed signal, and then removing the additional signal. The level and the phase of the additional signal are adjusted such that, after predicting a change of a composite vector of the n modulated signals based on an amplitude and a phase of the n carriers, a composite vector obtained after an adding operation can be lower than that before the adding operation when an absolute value of a prediction result exceeds a predetermined level.

Abstract translation: 一种多载波发送方法，包括：输入n个输入信号，生成与所述n个输入信号对应的载波，将所述载波调制为n个调制信号，并生成至少一个具有所述n个调制信号的频率外部频带的附加信号。 该方法还包括调整所产生的附加信号的电平和相位，通过将n个调制信号和经调整的附加信号相加，放大多路复用信号，然后除去附加信号，输出多路复用信号。 调整附加信号的电平和相位，使得在基于n个载波的幅度和相位预测n个调制信号的合成矢量的变化之后，在加法运算之后获得的复合矢量可以较低 当预测结果的绝对值超过预定水平时，加法运算之前的值。

公开(公告)号：US06734727B2

公开(公告)日：2004-05-11

申请号：US10225222

申请日：2002-08-21

Applicant: Kaoru Ishida ,  Naoki Takachi ,  Yuji Saito

Inventor： Kaoru Ishida ,  Naoki Takachi ,  Yuji Saito

IPC: H03F366

CPC classification number: H03F1/3229 ,  H03F1/3235 ,  H03F2201/3212

Abstract: A feedforward amplifier includes a main amplifier for amplifying an input signal, a control circuit for generating a predetermined pilot signal based on the output of a local oscillator and a frequency divider included in the control circuit, and a coupler for combining the input signal or the amplified signal with the pilot signal to generate a combined signal. A first coupler and a second coupler are provided for extracting any distortion component from the combined signal. A vector adjuster, an error amplifier, and a third coupler are provided for removing the extracted distortion component from the combined signal to generate an output signal. An orthogonal detector is provided for using any one of the pilot signal, or the output of the local oscillator, the frequency divider, and the combination of the vector adjuster, error amplifier, and the third coupler to make an adjustment for removing the distortion component.

Abstract translation: 前馈放大器包括用于放大输入信号的主放大器，用于基于本地振荡器的输出和包括在控制电路中的分频器产生预定导频信号的控制电路，以及用于将输入信号或 放大信号与导频信号产生组合信号。 提供第一耦合器和第二耦合器用于从组合信号中提取任何失真分量。 提供矢量调节器，误差放大器和第三耦合器，用于从组合信号中去除提取的失真分量以产生输出信号。 提供正交检测器，用于使用导频信号，本地振荡器的输出，分频器以及矢量调节器，误差放大器和第三耦合器的组合中的任何一个来进行调整以去除失真分量 。

公开(公告)号：US06545542B2

公开(公告)日：2003-04-08

申请号：US09982882

申请日：2001-10-22

Applicant: Toshimitsu Matsuyoshi ,  Kaoru Ishida ,  Masayuki Miyaji ,  Seiji Fujiwara

Inventor： Toshimitsu Matsuyoshi ,  Kaoru Ishida ,  Masayuki Miyaji ,  Seiji Fujiwara

IPC: H03F304

CPC classification number: H03F1/565 ,  H03F1/3205 ,  H03F3/604 ,  H03F2200/06 ,  H03F2200/09

Abstract: A power amplifier that reduces intermodulation distortion generated by the amplifier while reducing the number of parts is provided. A power amplifier comprises a first balun, to which a combined signal combining two signals of different frequencies is inputted, and which outputs, based on the combined signal, the first and the second signal whose phase are opposite; a first amplifier that outputs the first amplified signal containing the differential frequency component comprising the difference of the frequencies of two signals from the first signal; a second amplifier that outputs the second amplified signal containing the component comprising the difference of the frequencies of two signals from the second signal; and a second balun that outputs the combined signal of the first and the second amplified signals. The component contained in the first and the second amplified signal are inputted via the second and the first amplifier, respectively, to reduce the component.

Abstract translation: 提供了减少放大器产生的互调失真同时减少部件数量的功率放大器。 功率放大器包括第一平衡 - 不平衡变换器，组合了两个不同频率的信号的组合信号，并且基于组合信号输出相位相反的第一和第二信号; 第一放大器，其输出包含来自第一信号的两个信号的频率差的差分频率分量的第一放大信号; 第二放大器，输出包含来自第二信号的两个信号的频率差的分量的第二放大信号; 以及第二平衡 - 不平衡转换器，其输出第一和第二放大信号的组合信号。 分别通过第二放大器和第一放大器输入包含在第一和第二放大信号中的分量以减小分量。

公开(公告)号：US06542021B2

公开(公告)日：2003-04-01

申请号：US09759452

申请日：2001-01-16

Applicant: Hiroshi Isono ,  Kaoru Ishida

Inventor： Hiroshi Isono ,  Kaoru Ishida

IPC: H03K1700

CPC classification number: H03K17/76

Abstract: The invention relates to a high frequency switch used in a communication apparatus or the like, such as a portable terminal. The switch includes a first signal terminal, a first diode, the cathode of which is directly or indirectly connected to the first signal terminal, a bias controlling device having an end which is connected to the anode of the first diode, a second signal terminal directly or indirectly connected to the anode of the first diode, an impedance converting device having an end which is directly or indirectly connected to the first signal terminal, a serial circuit having a high frequency voltage dividing device and a second diode, the serial circuit being connected to the other end of the impedance converting device, and a third signal terminal directly or indirectly connected to the other end of the impedance converting device.

Abstract translation: 本发明涉及用于诸如便携式终端的通信设备等中的高频开关。 开关包括第一信号端子，第一二极管，其阴极直接或间接地连接到第一信号端子，偏置控制装置，其端部连接到第一二极管的阳极，第二信号端子直接 或间接地连接到第一二极管的阳极，具有直接或间接连接到第一信号端子的端部的阻抗转换装置，具有高频分压装置和第二二极管的串联电路，串联电路被连接 到阻抗转换装置的另一端，以及直接或间接连接到阻抗转换装置的另一端的第三信号端。