公开(公告)号：US20090097584A1

公开(公告)日：2009-04-16

申请号：US12282722

申请日：2007-03-16

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

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

IPC分类号： H04B7/02

CPC分类号： H04B7/022 ,  H04B7/026 ,  H04W56/0045

摘要： The present invention provides a wireless transmission system capable of exerting a maximum path diversity effect by using combinations formed by a plurality of symbol waveforms even when a maximum number of effective branches is limited to a small number. A transmission timing controlling section (23) determines a timing delayed from a reference timing by a predetermined delay amount as a transmission start timing. A modulating section (21) modulates a signal, by using one symbol waveform among a plurality of symbol waveform candidates, utilizing a modulation scheme in which a phase transition of a symbol waveform, which exerts an anti-multipath property by demodulating the signal on the receiving side, represents a waveform being changed, and then transmits the modulated signal at a transmission start timing. A predetermined delay amount is set such that the number of reception timings, each indicating a timing at which a receiving station (12) receives a signal, is a plural number and is less than or equal to a predetermined maximum number of effective branches for each symbol waveform, and such that each time difference between the reception timings is greater than or equal to a predetermined delay resolution and less than or equal to a predetermined maximum delay.

摘要翻译： 本发明提供一种能够通过使用由多个符号波形形成的组合来施加最大路径分集效应的无线传输系统，即使最大数量的有效分支被限制为少数。 发送定时控制部（23）将从基准定时延迟预定延迟量的定时作为发送开始定时。 调制部分（21）通过使用多个符号波形候选中的一个符号波形来调制信号，利用调制方案，其中通过解调信号上的信号来发出抗多径特性的符号波形的相位转换 接收侧表示正在改变的波形，然后在发送开始定时发送调制信号。 设定规定的延迟量，使得接收定时的数量，每个接收定时指示接收站（12）接收信号的定时是多个，并且小于或等于每个的预定最大有效分支数 符号波形，并且使得接收定时之间的每个时间差大于或等于预定延迟分辨率并小于或等于预定最大延迟。

公开(公告)号：US20090036052A1

公开(公告)日：2009-02-05

申请号：US12162013

申请日：2007-01-31

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

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

IPC分类号： H04B7/14

CPC分类号： H04B7/2606 ,  H04B7/022 ,  H04B7/026 ,  H04B7/15592 ,  H04L27/18 ,  H04L27/2601

摘要： A wireless station according to the present invention is a wireless station used as one of a plurality of relay stations forming transmission paths, respectively, different from each other, in a wireless transmission system for transmitting a packet from a transmitting station to a receiving station through the plurality of relay stations, and the wireless station comprises: a reception section for receiving a packet transmitted from the transmitting station, and receiving a packet which is transmitted, based on the packet transmitted from the transmitting station, from a relay station other than the one of the plurality of relay stations, and is transmitted before the one of the plurality of relay stations performs transmission, by using a transmission parameter for obtaining a path diversity effect in the wireless transmission system; a transmission parameter estimation section for estimating the transmission parameter used by the relay station other than the one of the plurality of relay stations, based on the packet received by the reception section from the relay station other than the one of the plurality of relay stations; a transmission parameter selection section for selecting the transmission parameter other than the transmission parameter which is used by the relay station other than the one of the plurality of relay stations, and is estimated by the transmission parameter estimation section; and a transmission section for transmitting, to the receiving station, the packet received by the reception section from the transmitting station, by using the transmission parameter selected by the transmission parameter selection section.

摘要翻译： 根据本发明的无线站是在用于从发送站向接收站发送分组的无线传输系统中分别形成彼此不同的传输路径的多个中继站之一的无线站，通过 所述多个中继站和所述无线站包括：接收部分，用于接收从所述发送站发送的分组，并且基于从所述发送站发送的分组，从除所述发送站以外的中继站接收发送的分组 多个中继站中的一个，并且在多个中继站中的一个中继站进行传输之前通过使用用于获得无线传输系统中的路径分集效应的传输参数来发送; 发送参数估计部，其基于由所述接收部从除了所述多个中继站之一以外的所述中继站接收到的分组，估计所述中继站使用的所述多个中继站以外的所述发送参数; 传输参数选择部分，用于选择除了所述多个中继站中的一个以外的所述中继站使用的所述传输参数以外的所述传输参数，并且由所述传输参数估计部分估计; 以及发送部，其通过使用由所述发送参数选择部选择的发送参数向所述接收站发送由所述接收部从所述发送站接收的分组。

公开(公告)号：US07450666B2

公开(公告)日：2008-11-11

申请号：US10974723

申请日：2004-10-28

申请人： Kenji Miyanaga ,  Tomohiro Kimura ,  Kenichi Mori ,  Hitoshi Takai

发明人： Kenji Miyanaga ,  Tomohiro Kimura ,  Kenichi Mori ,  Hitoshi Takai

IPC分类号： H04L27/22 ,  H04L7/04

CPC分类号： H04L27/06 ,  H04L25/4904

摘要： A delay section delays a detected signal by less than one bit time in the NRZ data. A subtraction section performs subtraction between a delayed signal and the detected signal, and outputs a resultant signal. A clock extraction section extracts, from crossing points of a subtracted signal, crossing points whose time interval is more than or equal to (Tb−α) and less than or equal to (Tb+β) (wherein 0

摘要翻译： 延迟部分在NRZ数据中将检测信号延迟小于一个位时间。 减法部分在延迟信号和检测信号之间进行减法，并输出结果信号。 时钟提取部从减法信号的交叉点提取时间间隔大于等于（Tb-α）且小于等于（Tb +β）的交叉点（其中0 <α= Tb / 8，0 <β= Tb：Tb是NRZ数据中的一位时间），并且输出与提取的交叉点同步的同步信号。 时钟恢复部将时钟信号与同步信号的相位同步，并输出数据时钟信号。 确定部分根据数据时钟信号确定从减法部分输出的相减信号的极性，并将确定结果作为NRZ数据输出。

公开(公告)号：US20080198835A1

公开(公告)日：2008-08-21

申请号：US10569730

申请日：2005-09-16

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

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

IPC分类号： H04J3/06

CPC分类号： H04L1/1887 ,  H04B7/022 ,  H04B7/026 ,  H04B7/0676 ,  H04B7/155 ,  H04L2001/0093 ,  H04W56/00 ,  H04W84/042 ,  H04W84/047

摘要： The present invention provides a wireless station capable of increasing the probability that a path diversity effect can be obtained in a case where a plurality of wireless stations transmit packets using a modulation/demodulation scheme with an anti-multipath property. A delay amount determining section (48) randomly selects a delay amount from among a plurality of candidate values. A transmission timing control section (47) determines a transmission start timing, at which to start the packet transmission, to be a timing obtained by delaying a reference timing by the delay amount selected by the delay amount determining section. At the transmission start timing, a modulation section (49) transmits the packet via an RF section (42) and an antenna (41). The difference between the candidate values is greater than or equal to a predetermined delay resolution, and the difference between a maximum candidate value and a minimum candidate value is less than or equal to a predetermined maximum delay.

摘要翻译： 本发明提供一种能够增加在多个无线站使用具有抗多径性质的调制解调方案来发送分组的情况下能够获得路径分集效果的概率的无线站。 延迟量确定部分（48）从多个候选值中随机选择延迟量。 发送定时控制部分47确定开始分组发送的发送开始定时是通过将参考定时延迟由延迟量确定部选择的延迟量而获得的定时。 在发送开始定时，调制部（49）经由RF部（42）和天线（41）发送分组。 候选值之间的差大于或等于预定延迟分辨率，并且最大候选值与最小候选值之间的差小于或等于预定最大延迟。

公开(公告)号：US20080198799A1

公开(公告)日：2008-08-21

申请号：US11631291

申请日：2005-07-05

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

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

IPC分类号： H04Q7/00

CPC分类号： H04W16/24 ,  H04W74/08

摘要： In a wireless communication system using the contention method, collisions between transmission signals sent from terminals to a base station are avoided, and a communication area is flexibly formed while suppressing unnecessary radiation of the communication area. The base station includes antennas disposed such that wireless zones cover mutually different areas, wireless units connected to the antennas in one-to-one correspondence, and for, via the respective antennas, receiving wireless signals from the terminal stations in the wireless zones and transmitting wireless signals to the terminal stations in the wireless zones, a data processing unit for processing the wireless signals received by the plurality of wireless units and generate data to be transmitted to the terminal stations, and a communication control unit for controlling the wireless units so as to, during a slot other than a transmission request slot, form one communication area combining the wireless zones of all of the antennas, and during the transmission request slot, form mutually independent communication areas less than or equal in number to the antennas.

摘要翻译： 在使用争用方法的无线通信系统中，避免了从终端发送到基站的发送信号之间的冲突，并且在抑制通信区域的不必要的辐射的同时灵活地形成通信区域。 基站包括天线布置成使得无线区域覆盖相互不同的区域，一对一对应连接到天线的无线单元，并且经由各个天线，从无线区域中的终端站接收无线信号并发送 向无线区域中的终端站发送无线信号;数据处理单元，用于处理由多个无线单元接收到的无线信号，并生成要发送到终端站的数据;以及通信控制单元，用于控制无线单元，以便 在除了传输请求时隙之外的时隙中，形成组合所有天线的无线区域的一个通信区域，并且在传输请求时隙期间，形成数量小于或等于天线的相互独立的通信区域。

公开(公告)号：US07175799B2

公开(公告)日：2007-02-13

申请号：US10490465

申请日：2002-09-20

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

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

IPC分类号： B29D22/00

CPC分类号： B21K1/12 ,  B21C37/16 ,  B21D53/88

摘要： A process is provided for producing a hollow member having a wall thickness, in a cross section orthogonal to the longitudinal direction, that varies in the longitudinal direction, the process including a heating step of heating a tubular material (Pa) so that the tubular material (Pa) is given a temperature variation in the longitudinal direction, and a stretching step of axially stretching the tubular material (Pa) that has been heated in the preceding step. In this way, a hollow member having a cross-sectional wall thickness that is variable in the longitudinal direction can be easily produced.

摘要翻译： 提供了一种制造中空构件的方法，所述中空构件在垂直于纵向方向的横截面上沿纵向方向变化，该方法包括加热管状材料（Pa）的加热步骤，使得管状材料 （Pa）被赋予长度方向的温度变化，以及轴向拉伸在前一步骤中被加热的管状材料（Pa）的拉伸步骤。 以这种方式，可以容易地制造具有在纵向可变的横截面壁厚的中空构件。

公开(公告)号：US20050046092A1

公开(公告)日：2005-03-03

申请号：US10490465

申请日：2002-09-20

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

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

IPC分类号： B21C37/16 ,  B21D26/033 ,  B21D26/041 ,  B21D26/043 ,  B21D26/045 ,  B21D51/16 ,  B21D53/88 ,  B21K1/12 ,  B29C55/22

CPC分类号： B21K1/12 ,  B21C37/16 ,  B21D53/88

摘要： A process is provided for producing a hollow member having a wall thickness, in a cross section orthogonal to the longitudinal direction, that varies in the longitudinal direction, the process including a heating step of heating a tubular material (Pa) so that the tubular material (Pa) is given a temperature variation in the longitudinal direction, and a stretching step of axially stretching the tubular material (Pa) that has been heated in the preceding step. In this way, a hollow member having a cross-sectional wall thickness that is variable in the longitudinal direction can be easily produced.

摘要翻译： 提供了一种制造中空构件的方法，所述中空构件在垂直于纵向方向的横截面上沿纵向方向变化，该方法包括加热管状材料（Pa）的加热步骤，使得管状材料 （Pa）被赋予长度方向的温度变化，以及轴向拉伸在前一步骤中被加热的管状材料（Pa）的拉伸步骤。 以这种方式，可以容易地制造具有在纵向可变的横截面壁厚的中空构件。

公开(公告)号：US08704602B2

公开(公告)日：2014-04-22

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： H03B5/10

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

摘要： 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： 一种调制部，包括：反馈电路，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，被配置为校准所述调制信号，并将所述经校准的调制信号输出到所述电压控制 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：US08675759B2

公开(公告)日：2014-03-18

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 performs multi-station simultaneous transmission of data. The wireless transmission system includes 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, delay amounts from a reference timing during multi-station simultaneous transmission in the wireless transmission system, and 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： 无线传输系统执行多站同时传输数据。 无线传输系统包括用于发送和接收数据的无线站。 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无线发送中的多站同时发送期间的基准定时的延迟量 系统和符号波形，这是调制波形的基础。 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被设置为小于或等于预定最大延迟。

公开(公告)号：US08233865B2

公开(公告)日：2012-07-31

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： H04B1/00

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。