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1. 发明专利

JP3683860B2 Demodulating circuit 有权
公开(公告)号：JP3683860B2
公开(公告)日：2005-08-17
申请号：JP2002031432
申请日：2002-02-07
申请人：日本無線株式会社 , 日本電信電話株式会社
发明人：英男大澤 , 由幸安井 , 芳人小野 , 幸秀水本
IPC分类号： H04L27/38 , H04L7/00 , H04L27/22

2. 发明专利

JP3792163B2 Wireless communication device 有权
标题翻译：空值
公开(公告)号：JP3792163B2
公开(公告)日：2006-07-05
申请号：JP2002031149
申请日：2002-02-07
申请人：日本無線株式会社 , 日本電信電話株式会社
发明人：英男大澤 , 由幸安井 , 秀史村田 , 幸秀水本
IPC分类号： H04B1/18 , H04B7/24
CPC分类号： Y02D70/00 , Y02D70/40 , Y02D70/448
摘要： PROBLEM TO BE SOLVED: To shorten a preamble signal length in a TDMA/TDD system to improve frame efficiency. SOLUTION: A gain control means 48 updates a control command value to be inputted to a gain variable amplifier 32 so as to turn, to an appropriate level, the input power level to an A/D converter 38 of gain adjustment signals from a subscriber station 40 to be a transmission origin, and stores the updated control command value into an address located inside a memory 50 and corresponding to the subscriber station 40 to be the transmission origin. The updated control command value stored into the memory 50 is set as the initial value of the control command value when the next radio signal is received from the same subscriber station 40. COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：缩短TDMA / TDD系统中的前导码信号长度以提高帧效率。解决方案：增益控制装置48更新要输入到增益可变放大器32的控制命令值，以将适当的电平转换为A / D转换器38的增益调节信号的输入功率电平，用户站40作为发送来源，并且将更新的控制命令值存储在存储器50内的地址中，并且与用户站40对应的地址为发送源。存储在存储器50中的更新控制命令值被设定为当从同一用户站40接收到下一个无线电信号时的控制命令值的初始值。版权所有（C）2003，JPO

3. 发明专利

JP3920816B2 Wireless communication device 有权
公开(公告)号：JP3920816B2
公开(公告)日：2007-05-30
申请号：JP2003185129
申请日：2003-06-27
申请人：日本無線株式会社 , 日本電信電話株式会社
发明人：勝利仁平 , 秀明吉田 , 英男大澤 , 哲也白水
IPC分类号： H04L27/22 , H04J3/00

4. 发明专利

JP5438281B2 Distance measuring device for the receiver and the distance measuring device 有权
公开(公告)号：JP5438281B2
公开(公告)日：2014-03-12
申请号：JP2008096938
申请日：2008-04-03
申请人：日本無線株式会社
发明人：政行高橋 , 英男大澤 , 重幸浅見 , 康史鹿島 , 国充新井
IPC分类号： G01S13/76 , G01S13/79

5. 发明专利

JP4603462B2 Relay device 有权
公开(公告)号：JP4603462B2
公开(公告)日：2010-12-22
申请号：JP2005311707
申请日：2005-10-26
申请人：日本無線株式会社
发明人：英男大澤 , 孝基柴田
IPC分类号： H04B7/208
CPC分类号： H04B7/15542

6. 发明专利

JP5518636B2 Multipath interference equalization filter, and the receiving device 有权
标题翻译：空值
公开(公告)号：JP5518636B2
公开(公告)日：2014-06-11
申请号：JP2010188065
申请日：2010-08-25
申请人：日本無線株式会社
发明人：政行高橋 , 英男大澤
IPC分类号： H04B1/10 , H04B3/06 , H04B7/005 , H04B7/08 , H04J11/00
CPC分类号： Y02D70/00 , Y02D70/40 , Y02D70/44 , Y02D70/444
摘要： PROBLEM TO BE SOLVED: To appropriately suppress interference waves in a multipath environment.SOLUTION: A multipath interference equalization filter includes: a first FIR filter section configured to receive any one of a plurality of received signals received by a plurality of antennas respectively as a reference signal and provided in correspondence with each received signal other than the reference signal; a first subtracter provided in correspondence with each received signal other than the reference signal out of the plurality of received signals and configured to subtract the output of the first FIR filter section corresponding to the received signal from the received signal; and a tap coefficient setting section configured to calculate tap coefficients for each first FIR filter section which minimize the power of the signal output by each first subtracter, zero a tap coefficient for a tap operative on a reference signal without delay in the first FIR filter section and adopt the calculated tap coefficients as tap coefficients for the other taps, in determining tap coefficients for the first FIR filter section.
摘要翻译：要解决的问题：适当地抑制多径环境中的干扰波。解决方案：多路径干扰均衡滤波器包括：第一FIR滤波器部分，被配置为分别接收多个天线中接收的多个接收信号中的任何一个作为参考信号并且与除了参考信号之外的每个接收信号相对应地提供; 与所述多个接收信号中的所述参考信号以外的每个接收信号相对应地设置的第一减法器，并且被配置为从所述接收信号中减去与所述接收信号相对应的所述第一FIR滤波器部分的输出; 以及抽头系数设定部，被配置为计算使每个第一减法器输出的信号的功率最小化的每个第一FIR滤波器部分的抽头系数，对于在第一FIR滤波器部分中没有延迟地对参考信号进行操作的抽头的抽头系数为零并且在确定第一FIR滤波器部分的抽头系数时，采用计算的抽头系数作为其他抽头的抽头系数。

7. 发明专利

JP5327745B2 Interference wave removal apparatus and method 有权
标题翻译：空值
公开(公告)号：JP5327745B2
公开(公告)日：2013-10-30
申请号：JP2009072641
申请日：2009-03-24
申请人：日本無線株式会社
发明人：政行高橋 , 英男大澤 , 重幸浅見 , 弘幸木田 , 康史鹿島 , 国充新井
IPC分类号： H04B7/08 , H04J11/00
CPC分类号： Y02D70/00 , Y02D70/444
摘要： PROBLEM TO BE SOLVED: To provide an interference wave remover for removing interference waves so as to be suitable to each of OFDM signals depending on the presence or absence of large power interference. SOLUTION: The interference wave remover has: an output power minimizing section for optimizing a weighting coefficient of each of a plurality of antenna elements on the basis of an output power minimum reference algorithm; a D/U estimating section for detecting the strength of interference waves out of the band of a used channel and performing D/U estimation; and a reception signal generation control section which, when the strength is less than a predetermined threshold value, optimizes the weighting coefficient of an antenna element for receiving a signal with respect to the output power minimizing section, and when the strength is not less than the threshold, holds the weighting coefficient of the antenna element. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于去除干扰波的干扰波去除器，以便根据大功率干扰的存在或不存在适合于每个OFDM信号。解决方案：干扰波去除器具有：输出功率最小化部分，用于基于输出功率最小参考算法来优化多个天线元件中的每一个的加权系数; D / U估计部分，用于检测所使用信道的频带之外的干扰波的强度并执行D / U估计; 以及接收信号生成控制部，当强度小于预定阈值时，优化用于接收相对于输出功率最小化部分的信号的天线元件的加权系数，并且当强度不小于阈值，保持天线元件的加权系数。版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP5518635B2 Multipath interference equalization filter, and the receiving device 有权
标题翻译：空值
公开(公告)号：JP5518635B2
公开(公告)日：2014-06-11
申请号：JP2010188064
申请日：2010-08-25
申请人：日本無線株式会社
发明人：政行高橋 , 英男大澤
IPC分类号： H04B1/10 , H04B7/005 , H04B7/08 , H04J11/00
CPC分类号： Y02D70/00 , Y02D70/40 , Y02D70/44 , Y02D70/444
摘要： PROBLEM TO BE SOLVED: To appropriately suppress interference waves in a multipath environment.SOLUTION: A multipath interference equalization filter includes: a first FIR filter section configured to receive any one of a plurality of received signals received by a plurality of antennas as a reference signal and provided in correspondence with each received signal other than the reference signal; a first subtracter provided in correspondence with each received signal other than the reference signal and configured to subtract the output of the first FIR filter section corresponding to the received signal from the received signal; and a tap coefficient setting section configured to, if the received signals include only interference waves, calculate tap coefficients for each first FIR filter section which minimize the power of the signal output by each first subtracter, and zero a tap coefficient among the calculated tap coefficients which is for a tap operative on the reference signal given the same delay time as the minuend signal in the first subtracter, before assigning the tap coefficients to the first FIR filter section.
摘要翻译：要解决的问题：适当地抑制多路径环境中的干扰波。解决方案：多路径干扰均衡滤波器包括：第一FIR滤波器部分，被配置为接收由多个天线接收的多个接收信号中的任何一个作为参考信号并且与除了参考信号之外的每个接收信号相对应地提供; 与所述参考信号以外的每个接收信号相对应地设置的第一减法器，并且被配置为从所接收的信号中减去与所述接收信号相对应的所述第一FIR滤波器部分的输出; 以及抽头系数设定部，其被配置为如果所接收的信号仅包括干扰波，则计算使每个第一减法器输出的信号的功率最小化的每个第一FIR滤波器部分的抽头系数，并且计算抽头系数中的抽头系数为零在将抽头系数分配给第一FIR滤波器部分之前，其用于在给定与第一减法器中的减号信号相同的延迟时间的参考信号上操作的抽头。

9. 发明专利

JP5325624B2 Reception method using a multi-antenna receiver and multi-antenna receiver 有权
标题翻译：空值
公开(公告)号：JP5325624B2
公开(公告)日：2013-10-23
申请号：JP2009072021
申请日：2009-03-24
申请人：日本無線株式会社
发明人：政行高橋 , 英男大澤 , 重幸浅見 , 弘幸木田 , 康史鹿島 , 国充新井
IPC分类号： H04B7/10 , H04B7/08 , H04J11/00
CPC分类号： Y02D70/00 , Y02D70/442 , Y02D70/444
摘要： PROBLEM TO BE SOLVED: To provide an interference wave removing device capable of improving SINR (signal to interference and noise ratio) even if an interference wave not synchronized with a symbol in an OFDM (orthogonal frequency division multiplexing signal) signal as a desired wave exists. SOLUTION: A multi-antenna receiver has: an output power minimizing section for calculating a first weighting coefficient for suppressing an interference wave included in reception signals received by a plurality of antennas, by using an output power minimum reference algorithm, acquiring a symbol synchronization and setting the first weighting coefficient at 1 when the symbol synchronization is acquired; a Fourier transform section for applying Fourier transform to the reception signal received per antenna in a symbol unit by the symbol synchronization, and outputting the signal as symbol data; a weighting compositing section for calculating a second weighting coefficient to be multiplied to the Fourier-transformed symbol data per sub-carrier, and performing weighting compositing per sub-carrier on the basis of the second weighting coefficient; and a demodulating section for demodulating the signal after weighting compositing. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：即使在与OFDM（正交频分复用信号）信号中的符号不同步的干扰波作为干扰波去除装置，也可以提供能够改善SINR（信号与干扰和噪声比）的干扰波去除装置存在所需波。解决方案：多天线接收机具有：输出功率最小化部分，用于通过使用输出功率最小参考算法来计算用于抑制由多个天线接收的接收信号中包括的干扰波的第一加权系数，获取符号同步并且当获取符号同步时将第一加权系数设置为1; 傅里叶变换部分，用于通过符号同步以符号单位向每个天线接收的接收信号应用傅里叶变换，并将该信号作为符号数据输出; 加权合成部分，用于计算要乘以每个子载波的傅立叶变换符号数据的第二加权系数，并且基于第二加权系数对每个子载波执行加权合成; 以及解调部，用于对加权合成后的信号进行解调。版权所有（C）2011，JPO＆INPIT

10. 发明专利

JP4553663B2 Pull-in method in a blind adaptive equalizer and blind adaptive equalizer 有权
公开(公告)号：JP4553663B2
公开(公告)日：2010-09-29
申请号：JP2004253863
申请日：2004-09-01
申请人：日本無線株式会社 , 株式会社エヌ・ティ・ティ・ドコモ
发明人：肇中村 , 忠内山 , 英男大澤 , 正俊永安 , 和俊津田 , 秀俊鈴木
IPC分类号： H04B7/005 , H04B3/06 , H04L27/01

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