公开(公告)号：US07616702B2

公开(公告)日：2009-11-10

申请号：US11653284

申请日：2007-01-16

申请人： Kaoru Ishida

发明人： Kaoru Ishida

IPC分类号： H04L27/36

CPC分类号： H04W52/52 ,  H03G3/3042 ,  H03G3/3047

摘要： A transmission circuit is provided which can quickly and accurately control an output power of a transmission signal even when the transmission signal is output at a high modulation rate and in a wide dynamic range. A switching control section controls a modulation method changing section to change a modulation method of a modulated signal generating section to a modulation method having a narrow dynamic range before controlling a switching section to switch amplification sections. An output adjustment control section controls output adjusting sections so that a difference in level between a transmission signal which is smoothed by a smoothing circuit and is before the amplification sections are switched, and a transmission signal which is after the amplification sections are switched, is caused to be smaller than a predetermined difference threshold value, when the modulated signal generating section operates in the modulation method having the narrow dynamic range.

摘要翻译： 即使传输信号以高调制率和宽的动态范围输出，也能够快速准确地控制发送信号的输出功率的发送电路。 切换控制部分控制调制方法改变部分，以在控制切换部分以切换放大部分之前将调制信号产生部分的调制方法改变为具有窄动态范围的调制方法。 输出调整控制部分控制输出调节部分，使得平滑电路平滑并且在放大部分之前被切换的发送信号之间的电平差和放大部分之后的发送信号被切换 当调制信号生成部分以具有窄动态范围的调制方法操作时，小于预定差值阈值。

公开(公告)号：US20050197084A1

公开(公告)日：2005-09-08

申请号：US11072266

申请日：2005-03-07

申请人： Toshinori Hamasaki ,  Kaoru Ishida

发明人： Toshinori Hamasaki ,  Kaoru Ishida

IPC分类号： H03D7/14 ,  H04B7/00

CPC分类号： H03D7/1425 ,  H03D7/1433 ,  H03D7/1458 ,  H03D7/165 ,  H03D2200/0043 ,  H03D2200/0047

摘要： 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.

摘要翻译： 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：US06933780B2

公开(公告)日：2005-08-23

申请号：US09772883

申请日：2001-01-31

申请人： Seiji Fujiwara ,  Toru Matsuura ,  Kaoru Ishida ,  Makoto Sakakura

发明人： Seiji Fujiwara ,  Toru Matsuura ,  Kaoru Ishida ,  Makoto Sakakura

IPC分类号： H03F1/32 ,  H03F1/26

CPC分类号： H03F1/3276

摘要： 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.

摘要翻译： 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

申请人： Toshimitsu Matsuyoshi ,  Kaoru Ishida ,  Seiji Fujiwara

发明人： Toshimitsu Matsuyoshi ,  Kaoru Ishida ,  Seiji Fujiwara

IPC分类号： H03F1/32 ,  H03F1/26

CPC分类号： H03F1/3247 ,  H03F2200/102

摘要： 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.

摘要翻译： 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

申请人： Tsukasa Fukui ,  Kaoru Ishida

发明人： Tsukasa Fukui ,  Kaoru Ishida

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

CPC分类号： H01L23/5225 ,  H01L23/5227 ,  H01L27/08 ,  H01L2924/0002 ,  H01L2924/3011 ,  H01Q1/38 ,  H01L2924/00

摘要： 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.

摘要翻译： 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

申请人： Kaoru Ishida ,  Shin'ichi Kugou

发明人： Kaoru Ishida ,  Shin'ichi Kugou

IPC分类号： H04L2728

CPC分类号： H04L5/06

摘要： 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.

摘要翻译： 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

申请人： Kaoru Ishida ,  Naoki Takachi ,  Yuji Saito

发明人： Kaoru Ishida ,  Naoki Takachi ,  Yuji Saito

IPC分类号： H03F366

CPC分类号： H03F1/3229 ,  H03F1/3235 ,  H03F2201/3212

摘要： 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.

摘要翻译： 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

申请人： Toshimitsu Matsuyoshi ,  Kaoru Ishida ,  Masayuki Miyaji ,  Seiji Fujiwara

发明人： Toshimitsu Matsuyoshi ,  Kaoru Ishida ,  Masayuki Miyaji ,  Seiji Fujiwara

IPC分类号： H03F304

CPC分类号： H03F1/565 ,  H03F1/3205 ,  H03F3/604 ,  H03F2200/06 ,  H03F2200/09

摘要： 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.

摘要翻译： 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

申请人： Hiroshi Isono ,  Kaoru Ishida

发明人： Hiroshi Isono ,  Kaoru Ishida

IPC分类号： H03K1700

CPC分类号： H03K17/76

摘要： 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.

摘要翻译： 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。

公开(公告)号：US08886246B2

公开(公告)日：2014-11-11

申请号：US13148239

申请日：2010-11-18

申请人： Tomoya Urushihara ,  Kaoru Ishida ,  Akihiko Matsuoka

发明人： Tomoya Urushihara ,  Kaoru Ishida ,  Akihiko Matsuoka

IPC分类号： H04B7/00 ,  H04W52/04 ,  H03F3/24 ,  H03F1/02

CPC分类号： H03F3/24 ,  H03F1/02

摘要： 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).

摘要翻译： 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）。