公开(公告)号：US5938947A

公开(公告)日：1999-08-17

申请号：US14385

申请日：1998-01-27

申请人： Fumitomo Takano ,  Kenji Miyanaga

发明人： Fumitomo Takano ,  Kenji Miyanaga

IPC分类号： B23K11/24 ,  B23K11/25

CPC分类号： B23K11/257 ,  B23K11/241

摘要： Before a deterioration of a secondary current sensor is detected, a controller effects a feedback control process based on a secondary current from the secondary winding of a welding transformer which is energized by an inverter, for thereby controlling a welding current with a high degree of accuracy, e.g., an accuracy level of .+-.1%. At the same time, it is monitored whether a detected value of a primary current from the primary winding of the welding transformer, which is detected by a primary current sensor, exceeds a predetermined allowable range with respect to a reference value of the primary current. If the detected value of the primary current exceeds the predetermined allowable range, then it is decided that the secondary current sensor is deteriorated. When the secondary current sensor is deteriorated, the controller switches from the feedback control process based on the secondary current to a feedback control process based on the primary current to control the welding current with a certain degree of accuracy, e.g., an accuracy level of .+-.3%, without interrupting the welding process.

摘要翻译： 在检测到二次电流传感器的劣化之前，控制器基于来自由变频器通电的焊接变压器的次级绕组的次级电流进行反馈控制处理，从而以高精度控制焊接电流 ，例如+/- 1％的精​​度水平。 同时，监测来自初级电流传感器检测到的来自焊接变压器的初级绕组的初级电流的检测值是否相对于初级电流的基准值超过预定的允许范围。 如果初级电流的检测值超过规定的容许范围，则判断为二次电流传感器劣化。 当二次电流传感器劣化时，控制器基于次级电流从反馈控制过程切换到基于初级电流的反馈控制过程，以一定程度的精度控制焊接电流，例如+ / -3％，不中断焊接过程。

公开(公告)号：US08576948B2

公开(公告)日：2013-11-05

申请号：US13256894

申请日：2010-12-17

申请人： Toru Matsuura ,  Kenji Miyanaga

发明人： Toru Matsuura ,  Kenji Miyanaga

IPC分类号： H04B1/38 ,  H04B7/00 ,  H03C1/50 ,  H03C3/02

CPC分类号： H04L27/20 ,  H03C3/095

摘要： Disclosed are an angle modulator, a transmission apparatus, and a radio communication apparatus that can compensate phase discontinuity when an operational mode of a voltage controlled oscillator is switched. Angle modulator (100) includes phase difference detection section (150) that detects a difference of phases between an input signal of subtractor (141) and an angle modulated signal, using the result of subtraction by subtractor (141) of frequency locked loop circuit (140); correction control section (160) that generates a control signal for compensating that difference of phases based on that difference of phases; correction section (120) that corrects the phase of the angle modulated signal by adding the control signal to an input signal of angle modulator (100), an input signal of loop filter (142), or an input signal of VCO (143) during a predetermined period after VCO (143) switches the operational mode (from time t3 to time t4).

摘要翻译： 公开了一种角度调制器，发送装置和无线电通信装置，其可以在切换压控振荡器的操作模式时补偿相位不连续性。 角度调制器（100）包括相位差检测部分（150），其使用锁相环电路的减法器（141）减法的结果来检测减法器（141）的输入信号与角度调制信号之间的相位差 140）; 校正控制部分（160），其基于所述相位差产生用于补偿所述相位差的控制信号; 校正部分（120），其通过将控制信号与角度调制器（100）的输入信号，环路滤波器（142）的输入信号或VCO（143）的输入信号相加来校正角度调制信号的相位， 在VCO（143）切换操作模式（从时间t3到时间t4）之后的预定时间段。

公开(公告)号：US20120133403A1

公开(公告)日：2012-05-31

申请号：US13389290

申请日：2010-06-16

申请人： Kenji Miyanaga ,  Takayuki Tsukizawa

发明人： Kenji Miyanaga ,  Takayuki Tsukizawa

IPC分类号： H03L7/08

CPC分类号： H03C3/0941 ,  H03C3/095 ,  H03C3/0966 ,  H03L7/083 ,  H03L2207/05 ,  H03L2207/06

摘要： Included are: a modulation section including a feedback circuit configured to conduct feedback control of an output signal from a voltage controlled oscillator based on an inputted modulation signal, and a feed-forward circuit configured to calibrate the modulation signal and outputting the calibrated modulation signal to the voltage controlled oscillator; a signal output section configured to output, to the modulation section, a predetermined reference signal instead of the modulation signal when a calibration is conducted; and a gain correction section configured to, in a state where the feedback circuit is forming an open loop, calculate a frequency transition amount of the reference signal outputted by the voltage controlled oscillator, and correct a gain used for calibrating the modulation signal at the feed-forward circuit based on the calculated frequency transition amount.

摘要翻译： 包括：调制部，其包括反馈电路，其被配置为基于输入的调制信号对来自压控振荡器的输出信号进行反馈控制;以及前馈电路，被配置为校准调制信号并将校准的调制信号输出到 压控振荡器; 信号输出部，被配置为当进行校准时，将调制部分代替预定的参考信号，而不是调制信号; 以及增益校正部，被配置为在所述反馈电路形成开路的状态下，计算由所述压控振荡器输出的所述参考信号的频率变化量，并且校正用于校准所述馈送时的所述调制信号的增益 基于计算的频率转换量的前馈电路。

公开(公告)号：US20100197262A1

公开(公告)日：2010-08-05

申请号：US12376387

申请日：2008-01-09

申请人： Shuya Hosokawa ,  Kenji Miyanaga ,  Naganori Shirakata ,  Koji Imamura ,  Koichiro Tanaka

发明人： Shuya Hosokawa ,  Kenji Miyanaga ,  Naganori Shirakata ,  Koji Imamura ,  Koichiro Tanaka

IPC分类号： H04B1/10 ,  H04B1/06

CPC分类号： H04B7/0865 ,  H04B17/345

摘要： The noise amount information storage unit 161 stores noise amount information which indicates relationships between gain value of the variable gain amplification units 121 and 125 and the amount of noise included in BB signals output from the down converters 131 and 135. The AGC unit 140 controls the gain value of the variable gain amplification units 121 and 125 so that the power of BB signals output from the down converters 131 and 135 becomes constant. The noise amount estimation unit 162 estimates noise amount of noise corresponding to the controlled gain value of the variable gain amplification units 121 and 125 by referring to the noise amount information stored in the noise amount information storage unit 161. The weight generation unit 170 generates weight matrix based on results of estimations performed by the channel characteristic estimation unit 150 and the noise estimation unit 162.

摘要翻译： 噪声量信息存储单元161存储指示可变增益放大单元121和125的增益值与从下变频器131和135输出的BB信号中包括的噪声量之间的关系的噪声量信息。AGC单元140控制 可变增益放大单元121和125的增益值，使得从下变频器131和135输出的BB信号的功率变得恒定。 噪声量估计单元162通过参考存储在噪声量信息存储单元161中的噪声量信息来估计与可变增益放大单元121和125的受控增益值相对应的噪声噪声量。权重生成单元170产生权重 基于由信道特性估计单元150和噪声估计单元162执行的估计结果的矩阵。

公开(公告)号：US20080175221A1

公开(公告)日：2008-07-24

申请号：US10569491

申请日：2005-09-16

申请人： Hideki Nakahara ,  Hitoshi Takai ,  Hidetoshi Yamasaki ,  Kenji Miyanaga ,  Koichiro Tanaka

发明人： Hideki Nakahara ,  Hitoshi Takai ,  Hidetoshi Yamasaki ,  Kenji Miyanaga ,  Koichiro Tanaka

IPC分类号： H04J3/06

CPC分类号： H04L1/1887 ,  H04B7/022 ,  H04B7/0667 ,  H04B7/0676 ,  H04B7/15592 ,  H04W84/042 ,  H04W84/047

摘要： The present invention provides a wireless transmission system in which it is possible to exert a maximum path diversity effect even if the maximum number of effective branches is limited to a small number. A transmission timing control section (23) determines a transmission start timing to be a timing obtained by delaying a reference timing by a predetermined delay amount. A modulation section (21) modulates a signal by a modulation scheme such that an anti-multipath property is exerted when the signal is demodulated on a receiver side, and transmits the modulated signal at the transmission start timing. In a receiving station (12), a demodulation section (33) demodulates the receive signal to obtain receive data. The predetermined delay amount is such that signals are received at the receiving station (12) at a plurality of signal-receiving timings, and the number of signal-receiving timings is less than or equal to a predetermined maximum number of effective branches, a difference between the signal-receiving timings is greater than or equal to a predetermined delay resolution and is less than or equal to a predetermined maximum delay.

摘要翻译： 本发明提供一种无线传输系统，其中即使最大数量的有效分支被限制为少数，也可以施加最大路径分集效应。 发送定时控制部（23）将发送开始定时确定为通过将基准定时延迟预定延迟量而获得的定时。 调制部（21）通过调制方式对信号进行调制，使得当在接收机侧解调信号时施加抗多径特性，并在发送开始定时发送调制信号。 在接收站（12）中，解调部（33）对接收信号进行解调，得到接收数据。 预定延迟量使得在接收站（12）处以多个信号接收定时接收信号，并且信号接收定时的数量小于或等于预定的最大有效分支数，差 在信号接收定时之间大于或等于预定的延迟分辨率并且小于或等于预定的最大延迟。

公开(公告)号：US20050029714A1

公开(公告)日：2005-02-10

申请号：US10492510

申请日：2002-10-23

申请人： Kenji Miyanaga ,  Manabu Maruyama ,  Izuru Hori ,  Yuji Kanai ,  Kouki Mizutani

发明人： Kenji Miyanaga ,  Manabu Maruyama ,  Izuru Hori ,  Yuji Kanai ,  Kouki Mizutani

IPC分类号： B21D26/033 ,  B21D26/047 ,  B21D51/16 ,  B29C43/00

CPC分类号： B21D26/033 ,  C22F1/04 ,  Y10T29/49805

摘要： A process for forming a tubular member is provided which includes a preforming process for tube-expanding (bulge) forming and bending forming a tubular material (Pa) using first and second molds (M1, M2) and a final forming process for crush forming a preformed tube (Pc) using a third mold (M3) so as to give its cross section a desired shape, the preforming being carried out using the first and second molds (M1, M2) heated at temperatures equal to or higher than the recrystallization temperature of the tubular material and the final forming being carried out using the third mold (M3) heated at temperatures equal to or lower than the recrystallization temperature of the tubular material. The process enables a tubular material of aluminium alloy to be formed into a tubular member of high precision and high quality which has expanded portions as well as bent portions and whose cross section varies across its length. The process also enables drastic increase in productivity.

摘要翻译： 提供了一种用于形成管状构件的方法，其包括使用第一和第二模具（M1，M2）形成管状材料（Pa）的管膨胀（凸起）成形和弯曲形成的预成型工艺，以及用于压制成型 使用第三模具（M3）预成型管（Pc），以使其横截面成为期望的形状，使用在等于或高于再结晶温度的温度下加热的第一和第二模具（M1，M2）进行预成型 并且使用在等于或低于管状材料的再结晶温度的温度下加热的第三模具（M3）进行最终成型。 该方法能够使铝合金管状材料形成为高精度和高质量的管状构件，其具有膨胀部分以及弯曲部分，并且其截面在其长度上变化。 该过程还可以大大提高生产率。

公开(公告)号：US08693592B2

公开(公告)日：2014-04-08

申请号：US12597571

申请日：2008-03-10

申请人： Koji Imamura ,  Naganori Shirakata ,  Shuya Hosokawa ,  Kenji Miyanaga

发明人： Koji Imamura ,  Naganori Shirakata ,  Shuya Hosokawa ,  Kenji Miyanaga

IPC分类号： H04L27/06

CPC分类号： H03G3/3052 ,  H03G3/3068

摘要： An AGC unit starts a gain control of the variable gain amplifying unit when a bit saturation occurs in the digital baseband signal output from the A/D converting unit, and starts a gain control of the variable gain amplifying unit when a detection of STS from the digital baseband signal output from the A/D converting unit is started. The AGC unit performs the gain control of the variable gain amplifying unit once when the detection of STS is started, and performs the gain control of the variable gain amplifying unit twice when the bit saturation occurs, namely a larger number of times than when the detection of STS is started.

摘要翻译： 当从A / D转换单元输出的数字基带信号中产生位饱和时，AGC单元开始可变增益放大单元的增益控制，并且当从该A / D转换单元检测到STS时开始可变增益放大单元的增益控制 开始从A / D转换单元输出的数字基带信号。 当STS的检测开始时，AGC单元执行可变增益放大单元的增益控制，并且当发生位饱和时，执行可变增益放大单元的增益控制两次，即比检测时更大的次数 的STS已经开始了。

公开(公告)号：US07983311B2

公开(公告)日：2011-07-19

申请号：US12298375

申请日：2007-04-23

申请人： Shuya Hosokawa ,  Naganori Shirakata ,  Koichiro Tanaka ,  Kenji Miyanaga ,  Koji Imamura

发明人： Shuya Hosokawa ,  Naganori Shirakata ,  Koichiro Tanaka ,  Kenji Miyanaga ,  Koji Imamura

IPC分类号： H04J3/00

CPC分类号： H04W56/0085 ,  H04L7/042 ,  H04L25/0224 ,  H04L27/261 ,  H04L27/2662 ,  H04W28/06 ,  H04W56/00

摘要： A correlation unit (32) sequentially obtains correlation values between a baseband signal and a reference signal and outputs the obtained reference signal to a section division unit (33). The output of the correlation unit (32) is divided into symbol time periods by the section division unit (33). A section position detection unit (34) detects a largest correlation value in each of sections resulting from the division by the correlation unit (32) and outputs, to a synchronization judgment unit (35), first position information that indicates a relative position of each detected largest correlation value. The synchronization judgment unit (35) detects an arrival of a packet signal and estimates a symbol timing based on the first position information of the sections.

摘要翻译： 相关单元（32）顺序地获得基带信号和参考信号之间的相关值，并将获得的参考信号输出到区段划分单元（33）。 相关单元（32）的输出由区段划分单元（33）分成符号时间段。 区间位置检测单元（34）检测由相关单元（32）分割得到的每个区间中的最大相关值，并向同步判断单元（35）输出表示每个区域的相对位置的第一位置信息 检测到最大相关值。 同步判断单元（35）检测分组信号的到达，并基于各部分的第一位置信息来估计符号定时。

公开(公告)号：US20100239039A1

公开(公告)日：2010-09-23

申请号：US12294568

申请日：2007-03-20

申请人： Hitoshi Takai ,  Hidetoshi Yamasaki ,  Hideki Nakahara ,  Kenji Miyanaga

发明人： Hitoshi Takai ,  Hidetoshi Yamasaki ,  Hideki Nakahara ,  Kenji Miyanaga

IPC分类号： H04B7/02

CPC分类号： H04B7/2662

摘要： A wireless transmission system capable of performing multi-station simultaneous transmission of data by wireless is provided. The wireless transmission system includes a plurality of wireless stations for transmitting and receiving data. Transmitter-side wireless stations, a multipath channel, and receiver-side wireless stations constitute a system for path diversity. At least one wireless station among the wireless stations determines, depending on a response packet with respective to a multi-station simultaneous transmission request packet transmitted by itself or other stations, a plurality of delay amounts from a reference timing during multi-station simultaneous transmission in the wireless transmission system, and a plurality of symbol waveforms that are a basis for a modulated waveform. A difference between each delay amount is set to be larger than or equal to a predetermined delay resolution for each symbol waveform, and a difference between maximum and minimum values of the delay amounts is set to be smaller than or equal to a predetermined maximum delay.

摘要翻译： 提供能够通过无线方式进行数据同时多台传输的无线传输系统。 无线传输系统包括用于发送和接收数据的多个无线站。 发射机侧无线站，多路径信道和接收机侧无线站构成路径分集的系统。 无线站中的至少一个无线站根据与其自身或其他站发送的多站同时发送请求分组相对应的响应分组来确定在多站同时传输期间的参考定时的多个延迟量 无线传输系统以及作为调制波形的基础的多个符号波形。 每个延迟量之间的差设定为大于或等于每个符号波形的预定延迟分辨率，并且延迟量的最大值和最小值之间的差设定为小于或等于预定最大延迟。

公开(公告)号：US20090175299A1

公开(公告)日：2009-07-09

申请号：US12298375

申请日：2007-04-23

申请人： Shuya Hosokawa ,  Naganori Shirakata ,  Koichiro Tanaka ,  Kenji Miyanaga ,  Koji Imamura

发明人： Shuya Hosokawa ,  Naganori Shirakata ,  Koichiro Tanaka ,  Kenji Miyanaga ,  Koji Imamura

IPC分类号： H04J3/06 ,  H04L27/06

CPC分类号： H04W56/0085 ,  H04L7/042 ,  H04L25/0224 ,  H04L27/261 ,  H04L27/2662 ,  H04W28/06 ,  H04W56/00

摘要： A correlation unit (32) sequentially obtains correlation values between a baseband signal and a reference signal and outputs the obtained reference signal to a section division unit (33). The output of the correlation unit (32) is divided into symbol time periods by the section division unit (33). A section position detection unit (34) detects a largest correlation value in each of sections resulting from the division by the correlation unit (32) and outputs, to a synchronization judgment unit (35), first position information that indicates a relative position of each detected largest correlation value. The synchronization judgment unit (35) detects an arrival of a packet signal and estimates a symbol timing based on the first position information of the sections.

摘要翻译： 相关单元（32）顺序地获得基带信号和参考信号之间的相关值，并将获得的参考信号输出到区段划分单元（33）。 相关单元（32）的输出由区段划分单元（33）分成符号时间段。 区间位置检测单元（34）检测由相关单元（32）分割得到的每个区间中的最大相关值，并向同步判断单元（35）输出表示每个区域的相对位置的第一位置信息 检测到最大相关值。 同步判断单元（35）检测分组信号的到达，并基于各部分的第一位置信息来估计符号定时。