公开(公告)号：US07999706B2

公开(公告)日：2011-08-16

申请号：US12294629

申请日：2007-04-06

申请人： Masahiko Muto ,  Hideki Ichikawa

发明人： Masahiko Muto ,  Hideki Ichikawa

IPC分类号： H03M1/06

CPC分类号： H04B1/38 ,  H04B1/0003

摘要： It is possible to reduce errors generated between multiple D/A conversion paths. A characteristic acquisition device includes [1] an arbitrary signal generator that converts a first (second) input digital pattern into a first (second) output analog pattern, [2] a digitizer that converts a first input analog pattern into a first output digital pattern, and [3] a characteristic acquisition device that includes a first transmission characteristic deriving unit that derives a first transmission characteristic which converts the first input digital pattern into the output digital pattern where the input analog pattern is the first output analog pattern, a second transmission characteristic deriving unit that derives a second transmission characteristic which converts the second input digital pattern into the output digital pattern where the input analog pattern is the second output analog pattern, and a transmission characteristic ratio deriving unit that derives a transmission characteristic ratio which is a ratio relating to the first transmission characteristic and the second transmission characteristic.

摘要翻译： 可以减少在多个D / A转换路径之间产生的错误。 特征采集装置包括：[1]将第一（第二）输入数字图形转换为第一（第二）输出模拟模式的任意信号发生器，[2]将第一输入模拟模式转换为第一输出数字模式的数字转换器 以及[3]一种特征获取装置，其特征在于，具有：第一传输特性导出单元，其导出第一传输特性，其将所述第一输入数字图案转换为所述输出模拟模式是所述第一输出模拟模式的所述输出数字模式;第二传输 特征导出单元，其导出第二传输特性，其将第二输入数字图案转换为输入模拟模式是第二输出模拟模式的输出数字模式;以及传输特性比导出单元，其导出作为 涉及第一传输特性和t 他的第二传输特性。

公开(公告)号：US20110018749A1

公开(公告)日：2011-01-27

申请号：US12294629

申请日：2007-04-06

申请人： Masahiko Muto ,  Hideki Ichikawa

发明人： Masahiko Muto ,  Hideki Ichikawa

IPC分类号： H03M1/06 ,  H03M3/00

CPC分类号： H04B1/38 ,  H04B1/0003

摘要： It is possible to reduce errors generated between multiple D/A conversion paths. A characteristic acquisition device includes [1] an arbitrary signal generator that converts a first (second) input digital pattern into a first (second) output analog pattern, [2] a digitizer that converts a first input analog pattern into a first output digital pattern, and [3] a characteristic acquisition device that includes a first transmission characteristic deriving unit that derives a first transmission characteristic which converts the first input digital pattern into the output digital pattern where the input analog pattern is the first output analog pattern, a second transmission characteristic deriving unit that derives a second transmission characteristic which converts the second input digital pattern into the output digital pattern where the input analog pattern is the second output analog pattern, and a transmission characteristic ratio deriving unit that derives a transmission characteristic ratio which is a ratio relating to the first transmission characteristic and the second transmission characteristic.

摘要翻译： 可以减少在多个D / A转换路径之间产生的错误。 特征采集装置包括：[1]将第一（第二）输入数字图形转换为第一（第二）输出模拟模式的任意信号发生器，[2]将第一输入模拟模式转换为第一输出数字模式的数字转换器 以及[3]一种特征获取装置，其特征在于，具有：第一传输特性导出单元，其导出第一传输特性，其将所述第一输入数字图案转换为所述输出模拟模式是所述第一输出模拟模式的所述输出数字模式;第二传输 特征导出单元，其导出第二传输特性，其将第二输入数字图案转换为输入模拟模式是第二输出模拟模式的输出数字模式;以及传输特性比导出单元，其导出作为 涉及第一传输特性和t 他的第二传输特性。

公开(公告)号：US07123000B2

公开(公告)日：2006-10-17

申请号：US10467720

申请日：2002-01-21

申请人： Masahiko Muto ,  Akio Morikawa

发明人： Masahiko Muto ,  Akio Morikawa

IPC分类号： G01R23/165 ,  G01R23/16 ,  H04B17/00

CPC分类号： H04B17/309 ,  H04B17/327 ,  H04B17/354

摘要： The frequency of an adjacent channel signal is reduced by a down converter (12), wherein the signal (adjacent channel signal) in a predetermined band centered around the adjacent channel frequency passes through a band-pass filter (22). At this time, a signal out of the predetermined band among the signals output from the down converter (12) by the band-pass filter (22) passes through the filter (22). An FFT section (32) outputs the signal having passed through the band-pass filter (22) by making it correspond with a frequency so that a first power measuring section (34) is used for power measurement on the basis of only the signal in a predetermined band. Therefore, power on an adjacent signal is accurately measured upon reception of a measurement signal.

摘要翻译： 相邻信道信号的频率由下变频器（12）减少，其中以相邻信道频率为中心的预定频带中的信号（相邻信道信号）通过带通滤波器（22）。 此时，由带通滤波器（22）从下变频器（12）输出的信号中的预定频带之外的信号通过滤波器（22）。 FFT部（32）通过使通过带通滤波器（22）的信号与频率对应地输出，使得第一功率测量部（34）仅基于信号中的信号用于功率测量 一个预定的乐队。 因此，在接收到测量信号时，对相邻信号的电源进行精确的测量。

公开(公告)号：US07876173B2

公开(公告)日：2011-01-25

申请号：US12201283

申请日：2008-08-29

申请人： Masahiko Muto ,  Kiyoshi Hashiba ,  Takashi Kusaka

发明人： Masahiko Muto ,  Kiyoshi Hashiba ,  Takashi Kusaka

IPC分类号： G01R35/00

CPC分类号： H03G3/30

摘要： The present invention can control the power of an output from a device, which changes the amplitude of an input and outputs a result of the change, according to the frequency of the input so that the power is close to a desired value. An output control system (1) includes an amplitude changer (2) which controls the ratio of a change in amplitude according to a control signal, a discrete attenuator (14) which outputs an output signal obtained by attenuating an output from the amplitude changer while discretely setting an amount of the attenuation, a measurement result changer (18) which changes a measurement result of the output signal, a set voltage recording unit (24) which records a correspondence between a value of the control signal and a value of the output signal when the input signal is at a predetermined frequency, a measurement result correcting unit (44) which corrects an output from the measurement result changer (18) according to the frequency of the input signal, a target value correcting unit (42) which corrects a target value of the output signal according to the frequency of the input signal, a voltage setting unit (26) which sets the value of the control signal, an attenuation setting unit (12) which sets the amount of the attenuation according to the frequency of the input signal and a change setting unit (13) which sets an amount of the change provided by the measurement result changer (18).

摘要翻译： 本发明可以根据输入的频率来控制来自设备的输出的功率，其改变输入的幅度并输出变化的结果，使得功率接近期望值。 一个输出控制系统（1）包括一个根据控制信号控制幅度变化比的振幅变换器（2），一个离散衰减器（14），它输出通过衰减振幅变换器输出而得到的输出信号 离散地设置衰减量，改变输出信号的测量结果的测量结果更改器（18），记录控制信号的值与输出值之间的对应关系的设定电压记录单元（24） 当输入信号处于预定频率时的信号;测量结果校正单元，其根据输入信号的频率校正来自测量结果更改器的输出;校正目标值校正单元， 根据输入信号的频率的输出信号的目标值，设定控制信号的值的电压设定单元（26），衰减设定单元（12）， h根据输入信号的频率设定衰减量，以及设定由测定结果变更器（18）提供的变化量的变更设定部（13）。

公开(公告)号：US08179123B2

公开(公告)日：2012-05-15

申请号：US12614728

申请日：2009-11-09

申请人： Masayuki Tomita ,  Masahiko Muto ,  Takeshi Takahashi

发明人： Masayuki Tomita ,  Masahiko Muto ,  Takeshi Takahashi

IPC分类号： G01R11/32

CPC分类号： H04L25/03159 ,  G01R23/16 ,  H04B17/318 ,  H04L1/206

摘要： Provided is a measurement apparatus that measures power of a modulated signal that is modulated with a carrier signal having a prescribed frequency, comprising an AD converting section that outputs a digital modulated signal obtained by AD converting the modulated signal; a frequency converting section that converts the digital modulated signal into a frequency component signal representing a plurality of signal components at respective frequencies; a correction coefficient output section that outputs, for each frequency, a correction coefficient corresponding to a frequency characteristic of a transmission path on which the modulated signal is transmitted; a correcting section that corrects the signal component of each frequency in the frequency component signal using the correction coefficient of the corresponding frequency; and a power calculating section that calculates the power of the modulated signal based on the signal component of each frequency in the corrected frequency component signal.

摘要翻译： 提供一种测量装置，其测量利用具有规定频率的载波信号进行调制的调制信号的功率，包括：AD转换部，其输出通过AD转换所获得的调制信号而获得的数字调制信号; 频率转换部分，其将数字调制信号转换成表示各个频率的多个信号分量的频率分量信号; 校正系数输出部，对于每个频率，输出与发送所述调制信号的传输路径的频率特性相对应的校正系数; 校正部，其使用相应频率的校正系数校正频率分量信号中的每个频率的信号分量; 以及功率计算部，其基于所述校正后的频率分量信号中的各频率的信号分量来计算所述调制信号的功率。

公开(公告)号：US20050076072A1

公开(公告)日：2005-04-07

申请号：US10468235

申请日：2002-01-21

申请人： Masahiko Muto

发明人： Masahiko Muto

IPC分类号： H04L27/22 ,  H04L7/027 ,  H04L27/233 ,  G06F17/10

CPC分类号： H04L27/2331 ,  H04L7/027

摘要： FFT units (22a, 22b) of signal correlation calculating means (22) converts a clock delay corrected signal (a signal the symbolic point of which is corrected roughly) and a reference signal serving as a reference of modulation into signals of corresponding frequencies. A multiplier (22c) multiplies those signals of corresponding frequencies. An inverse FFT unit (22e) returns the result of the multiplication to a time corresponding signal. As a result, the correlation between the measured signal and the reference signal is calculated so that the position of the symbol point is calculated from the result of the calculation by a symbol point calculating unit (28). Therefore, the symbol point can be accurately estimated.

摘要翻译： 信号相关计算装置（22）的FFT单元（22a，22b）将时钟延迟校正信号（其符号点大致校正的信号）和用作调制参考的参考信号转换成相应频率的信号。 乘法器（22c）将相应频率的那些信号相乘。 逆FFT单元（22e）将乘法的结果返回到时间对应信号。 结果，计算测量信号和参考信号之间的相关性，使得根据符号点计算单元（28）的计算结果计算符号点的位置。 因此，可以准确地估计符号点。

公开(公告)号：US20090322451A1

公开(公告)日：2009-12-31

申请号：US12201283

申请日：2008-08-29

申请人： Masahiko Muto ,  Kiyoshi Hashiba ,  Takashi Kusaka

发明人： Masahiko Muto ,  Kiyoshi Hashiba ,  Takashi Kusaka

IPC分类号： H01P1/22

CPC分类号： H03G3/30

摘要： The present invention can control the power of an output from a device, which changes the amplitude of an input and outputs a result of the change, according to the frequency of the input so that the power is close to a desired value. An output control system (1) includes an amplitude changer (2) which controls the ratio of a change in amplitude according to a control signal, a discrete attenuator (14) which outputs an output signal obtained by attenuating an output from the amplitude changer while discretely setting an amount of the attenuation, a measurement result changer (18) which changes a measurement result of the output signal, a set voltage recording unit (24) which records a correspondence between a value of the control signal and a value of the output signal when the input signal is at a predetermined frequency, a measurement result correcting unit (44) which corrects an output from the measurement result changer (18) according to the frequency of the input signal, a target value correcting unit (42) which corrects a target value of the output signal according to the frequency of the input signal, a voltage setting unit (26) which sets the value of the control signal, an attenuation setting unit (12) which sets the amount of the attenuation according to the frequency of the input signal and a change setting unit (13) which sets an amount of the change provided by the measurement result changer (18).

摘要翻译： 本发明可以根据输入的频率来控制来自设备的输出的功率，其改变输入的幅度并输出变化的结果，使得功率接近期望值。 一个输出控制系统（1）包括一个根据控制信号控制幅度变化比的振幅变换器（2），一个离散衰减器（14），它输出通过衰减振幅变换器输出而得到的输出信号 离散地设置衰减量，改变输出信号的测量结果的测量结果更改器（18），记录控制信号的值与输出值之间的对应关系的设定电压记录单元（24） 当输入信号处于预定频率时的信号;测量结果校正单元，其根据输入信号的频率校正来自测量结果更改器的输出;校正目标值校正单元， 根据输入信号的频率的输出信号的目标值，设定控制信号的值的电压设定单元（26），衰减设定单元（12）， h根据输入信号的频率设定衰减量，以及设定由测定结果变更器（18）提供的变化量的变更设定部（13）。