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11. 发明授权

US07088956B2 Path search circuit, radio receiver and radio transmitter, utilizing a directional beam 有权
标题翻译：路径搜索电路，无线电接收机和无线电发射机，利用定向波束
公开(公告)号：US07088956B2
公开(公告)日：2006-08-08
申请号：US10411344
申请日：2003-04-10
申请人： Takaaki Kishigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takakusaki , Shoji Miyamoto
发明人： Takaaki Kishigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takakusaki , Shoji Miyamoto
IPC分类号： H04B1/00 , H04B15/00
CPC分类号： H04B1/7113 , H04B1/7117 , H04B7/086
摘要： A path search circuit according to the present invention has an orthogonal multi-beam forming section 4 for directional reception with a plurality of orthogonal multi-beams orthogonal one to another, correlation-operating sections 61–6M for correlation-operating outputs of the orthogonal multi-beam forming section 4 with a known signal, weight multiplying sections 81–8Nb for multiplying the output of the correlation-operating section 61–6M by a weight converted into a beam space, delay profile generating sections 91–9Nb for generating delay profiles from the output signals of the weight multiplying sections 81–8Nb, and a path detecting section 10 for detecting a reception timing and arrival direction of arrival path from the delay profile. This path search circuit can enhance the accuracy of path direction detection by the use of a directional reception signal, and further reduce the direction dependence of path timing detection accuracy.
摘要翻译：根据本发明的路径搜索电路具有用于定向接收的正交多波束形成部分4，其中多个正交多波束彼此正交，相关运算部分61-6M用于正交的相关运算输出具有已知信号的多波束形成部分4，用于将相关操作部分61-6M的输出乘以被转换成波束空间的权重的加权乘法部分81-8 Nb，延迟分布生成部分91-9 Nb 从权重乘法部分81-8 Nb的输出信号产生延迟分布;以及路径检测部分10，用于从延迟分布中检测接收定时和到达方向到达方向。该路径搜索电路可以通过使用定向接收信号来提高路径方向检测的精度，进一步减小路径定时检测精度的方向依赖性。

12. 发明申请

US20050250564A1 Adaptive antenna radio communication device 有权
标题翻译：自适应天线无线电通信设备
公开(公告)号：US20050250564A1
公开(公告)日：2005-11-10
申请号：US10524253
申请日：2003-09-26
申请人： Takaaki Kishigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takakusaki , Shoji Miyamoto
发明人： Takaaki Kishigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takakusaki , Shoji Miyamoto
IPC分类号： H01Q3/26 , H04B7/08 , H04B7/10 , H04B7/12 , H04J11/00 , H04J13/00 , H04L27/26 , H04B1/00 , H04B1/06 , H04B7/00
CPC分类号： G01S3/043 , G01S3/14 , H04B7/086 , H04L27/2601
摘要： An adaptive antenna radio communication device comprises a divided band direction estimating unit (4) for estimating the direction by calculating the cross correlations between a pilot signal and sub-carrier signals of the respective divided bands received by an array antenna (1) and calculating a spatial profile from correlation matrices determined by combining the correlation values between antenna elements of the different sub-carriers according to the output of the cross correlation calculation; a divided band array weight creating unit (5) for creating a weight of a receive array having a directional beam in the direction of estimation for each divided band; and a sub-carrier directivity creating unit (6) for creating a directivity by multiplication-combining the created receive array weight with the corresponding sub-carrier signal.
摘要翻译：一种自适应天线无线电通信装置包括：分频带方向估计单元，用于通过计算由阵列天线（1）接收的各个分频带的导频信号和副载波信号之间的互相关，来估计方向，并计算通过根据互相关计算的输出组合不同子载波的天线元件之间的相关值确定的相关矩阵的空间分布; 分割带阵列权重创建单元（5），用于在每个分割频带的方向上产生具有定向波束的接收阵列的权重; 以及子载波方向性创建单元（6），用于通过将创建的接收阵列权重与相应的副载波信号相乘合成来产生方向性。

13. 发明授权

US07940215B2 Adaptive antenna radio communication device 有权
标题翻译：自适应天线无线电通信设备
公开(公告)号：US07940215B2
公开(公告)日：2011-05-10
申请号：US11961340
申请日：2007-12-20
申请人： Takaaki Kishigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takakusaki , Shoji Miyamoto
发明人： Takaaki Kishigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takakusaki , Shoji Miyamoto
IPC分类号： G01S5/02
CPC分类号： G01S3/043 , G01S3/14 , H04B7/086 , H04L27/2601
摘要： An adaptive antenna radio communication device comprises a divided band direction estimating unit for estimating the direction by calculating the cross correlations between a pilot signal and sub-carrier signals of the respective divided bands received by an array antenna and calculating a spatial profile from correlation matrices determined by combining the correlation values between antenna elements of the different sub-carriers according to the output of the cross correlation calculation; a divided band array weight creating unit for creating a weight of a receive array having a directional beam in the direction of estimation for each divided band; and a sub-carrier directivity creating unit for creating a directivity by multiplication-combining the created receive array weight with the corresponding sub-carrier signal.
摘要翻译：一种自适应天线无线电通信设备包括：分频带方向估计单元，用于通过计算由阵列天线接收的各个分频带的导频信号和副载波信号之间的互相关，来估计该方向，并根据确定的相关矩阵计算空间分布通过根据互相关计算的输出组合不同子载波的天线元件之间的相关值; 分割带阵列权重创建单元，用于为每个分割频带创建在估计方向上具有定向波束的接收阵列的权重; 以及子载波方向性创建单元，用于通过将所创建的接收阵列权重与相应的副载波信号相乘合成来产生方向性。

14. 发明申请

US20110090813A1 RADIO COMMUNICATION DEVICE AND ARRIVAL DIRECTION ESTIMATION METHOD 有权
标题翻译：无线电通信设备和到达方向估计方法
公开(公告)号：US20110090813A1
公开(公告)日：2011-04-21
申请号：US12979318
申请日：2010-12-27
申请人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takakusaki , Shoji Miyamoto
发明人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takakusaki , Shoji Miyamoto
IPC分类号： H04L12/26
CPC分类号： H04B1/7113 , G01S3/74 , H04B1/7117 , H04B7/0617 , H04B7/086 , H04B2201/70701 , H04B2201/70715 , H04L1/06
摘要： A receiver having an array antenna estimates arrival directions of multiple paths that arrive with an angular spread. Consequently, arrival direction estimation accuracy can be ensured without increasing throughput even if the power every path is low by estimating an average arrival direction of an entire set of multiple paths having the angular spread from a result of one angular spectrum by multiple correlation operation units that perform mutual correlation operations with pilot signals for baseband signals received by the array antenna, a path detection unit that detects multiple arrival path receiving timings by generating a delay profile based on output of each of the correlation operation units, a path correlation value synthesis unit that synthesizes a correlation operation value calculated in the multiple correlation operation units and an arrival direction estimation unit that collectively estimates multiple path arrival directions using output of the path correlation value synthesis unit.
摘要翻译：具有阵列天线的接收机估计以角度扩展到达的多个路径的到达方向。因此，即使通过多个相关运算单元从一个角度频谱的结果估计具有角度扩展的整个多个路径的整个组的平均到达方向，即使通过多个相关运算单元来估计每个路径的功率，也可以确保到达方向估计精度，执行与阵列天线接收的基带信号的导频信号的相互关联操作;路径检测单元，通过基于每个相关运算单元的输出生成延迟分布来检测多个到达路径接收定时;路径相关值合成单元，合成在多个相关运算单元中计算出的相关运算值和使用路径相关值合成单元的输出共同估计多个路径到达方向的到达方向估计单元。

15. 发明申请

US20080107195A1 ADAPTIVE ANTENNA RADIO COMMUNICATION DEVICE 有权
标题翻译：自适应天线无线电通信设备
公开(公告)号：US20080107195A1
公开(公告)日：2008-05-08
申请号：US11961340
申请日：2007-12-20
申请人： Takaaki Kishigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takakusaki , Shoji Miyamoto
发明人： Takaaki Kishigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takakusaki , Shoji Miyamoto
IPC分类号： H04L27/28
CPC分类号： G01S3/043 , G01S3/14 , H04B7/086 , H04L27/2601
摘要： An adaptive antenna radio communication device comprises a divided band direction estimating unit for estimating the direction by calculating the cross correlations between a pilot signal and sub-carrier signals of the respective divided bands received by an array antenna and calculating a spatial profile from correlation matrices determined by combining the correlation values between antenna elements of the different sub-carriers according to the output of the cross correlation calculation; a divided band array weight creating unit for creating a weight of a receive array having a directional beam in the direction of estimation for each divided band; and a sub-carrier directivity creating unit for creating a directivity by multiplication-combining the created receive array weight with the corresponding sub-carrier signal.
摘要翻译：一种自适应天线无线电通信设备包括：分频带方向估计单元，用于通过计算由阵列天线接收的各个分频带的导频信号和副载波信号之间的互相关，来估计该方向，并根据确定的相关矩阵计算空间分布通过根据互相关计算的输出组合不同子载波的天线元件之间的相关值; 分割带阵列权重创建单元，用于为每个分割频带创建在估计方向上具有定向波束的接收阵列的权重; 以及子载波方向性创建单元，用于通过将所创建的接收阵列权重与相应的副载波信号相乘合成来产生方向性。

16. 发明申请

US20070273584A1 RADIO COMMUNICATION DEVICE AND ARRIVAL DIRECTION ESTIMATION METHOD 有权
标题翻译：无线电通信设备和到达方向估计方法
公开(公告)号：US20070273584A1
公开(公告)日：2007-11-29
申请号：US11833037
申请日：2007-08-02
申请人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takakusaki , Shoji Miyamoto
发明人： Takaaki Kisigami , Takashi Fukagawa , Yasuaki Yuda , Keiji Takakusaki , Shoji Miyamoto
IPC分类号： G01S3/28
CPC分类号： H04B1/7113 , G01S3/74 , H04B1/7117 , H04B7/0617 , H04B7/086 , H04B2201/70701 , H04B2201/70715 , H04L1/06
摘要： A receiver having an array antenna estimates arrival directions of multiple paths that arrive with an angular spread. Consequently, arrival direction estimation accuracy can be ensured without increasing throughput even if the power every path is low by estimating an average arrival direction of an entire set of multiple paths having the angular spread from a result of one angular spectrum by multiple correlation operation units that perform mutual correlation operations with pilot signals for baseband signals received by the array antenna, a path detection unit that detects multiple arrival path receiving timings by generating a delay profile based on output of each of the correlation operation units, a path correlation value synthesis unit that synthesizes a correlation operation value calculated in the multiple correlation operation units and an arrival direction estimation unit that collectively estimates multiple path arrival directions using output of the path correlation value synthesis unit.
摘要翻译：具有阵列天线的接收机估计以角度扩展到达的多个路径的到达方向。因此，即使通过多个相关运算单元从一个角度频谱的结果估计具有角度扩展的整个多个路径的整个组的平均到达方向，即使通过多个相关运算单元来估计每个路径的功率，也可以确保到达方向估计精度，执行与阵列天线接收的基带信号的导频信号的相互关联操作;路径检测单元，通过基于每个相关运算单元的输出生成延迟分布来检测多个到达路径接收定时;路径相关值合成单元，合成在多个相关运算单元中计算出的相关运算值和使用路径相关值合成单元的输出共同估计多个路径到达方向的到达方向估计单元。

17. 发明授权

US07184734B2 Radio communication apparatus 有权
标题翻译：无线通信装置
公开(公告)号：US07184734B2
公开(公告)日：2007-02-27
申请号：US10714119
申请日：2003-11-14
申请人： Yasuaki Yuda , Takaaki Kishigami , Takashi Fukagawa , Keiji Takakusaki , Shoji Miyamoto
发明人： Yasuaki Yuda , Takaaki Kishigami , Takashi Fukagawa , Keiji Takakusaki , Shoji Miyamoto
IPC分类号： H04B1/06 , H04B1/00 , H04K9/00 , H04L1/00
CPC分类号： H04B7/0845 , H01Q3/267 , H04B7/0891 , H04B17/20 , H04B2201/70701
摘要： A radio communication apparatus using an array antenna has a plurality of reception branches for conveying reception signals received at the antenna element of the array antenna, and a calibration branch for selecting one of the plurality of reception branches and conveying the reception signal. Channel estimations are made respectively on the reception-branch signals and a calibration-branch signal. RAKE composition is made on the channel estimation values, a result of which is used to detect amplitude and phase deviations on the reception branch thereby carrying out a correction.
摘要翻译：使用阵列天线的无线电通信装置具有用于传送在阵列天线的天线元件处接收的接收信号的多个接收分支和用于选择多个接收分支之一并传送接收信号的校准分支。在接收支路信号和校准支路信号上分别进行通道估计。根据信道估计值进行RAKE组合，其结果用于检测接收分支上的幅度和相位偏差，从而进行校正。

18. 发明申请

US20050018597A1 Radio base station apparatus 有权
标题翻译：无线基站装置
公开(公告)号：US20050018597A1
公开(公告)日：2005-01-27
申请号：US10503010
申请日：2003-08-01
申请人： Yasuaki Yuda , Takaaki Kishigami , Takashi Fukagawa , Keiji Takakusaki , Shoji Miyamoto
发明人： Yasuaki Yuda , Takaaki Kishigami , Takashi Fukagawa , Keiji Takakusaki , Shoji Miyamoto
IPC分类号： H04J11/00 , H01Q3/26 , H04B7/06 , H04B7/08 , H04B7/26 , H04L1/06 , H04L27/26 , H04Q7/30 , H04W16/28
CPC分类号： H01Q3/2605 , H01Q3/267 , H04B7/0617 , H04B7/086 , H04B17/10 , H04B17/12 , H04B17/18 , H04B17/20 , H04B17/21 , H04L1/06 , H04L27/2602 , H04L27/2626 , H04L27/2647
摘要： A transmission weight computing section computes a transmission weight for directional transmission using an OFDM signal. A transmission correcting value memory section stores one correcting value for correcting the transmission weight for each sub-carrier of an OFDM signal or each band gathering a plurality of sub-carriers. A transmission weight correcting section corrects the transmission weight by the correcting value. A transmitting branch weights transmission data by a transmission weight outputted from the transmission weight correcting section on a sub-carrier-by-sub-carrier basis and delivers it to an antenna.
摘要翻译：传输权重计算部分使用OFDM信号来计算定向传输的传输权重。发送校正值存储部存储用于校正OFDM信号的每个子载波的发送权重或收集多个子载波的每个频带的一个校正值。发送权重校正部通过校正值来校正发送权重。发送分支通过从子载波子载波基础上从发送加权校正部分输出的发送权重对发送数据进行加权，并将其发送到天线。

19. 发明授权

US07058425B1 Communication apparatus and communication method 失效
标题翻译：通信设备和通信方法
公开(公告)号：US07058425B1
公开(公告)日：2006-06-06
申请号：US09744029
申请日：2000-05-22
申请人： Keiji Takakusaki
发明人： Keiji Takakusaki
IPC分类号： H04M1/00
CPC分类号： F24F11/30 , F24F11/54 , F24F11/56 , F24F11/62 , H01Q3/26 , H01Q3/2605 , H01Q3/267 , H04B1/0475 , H04B7/0615 , H04B7/0617 , H04B2001/0416
摘要： Baseband signal generator 107 outputs a transmission baseband signal with a coefficient for setting antenna directivity multiplied and a gain control signal to transmit power amplifier 114 and transmit power amplifier 114 amplifies the transmission baseband signal with a gain corresponding to the gain control signal and transmits the signal from antenna 102. ATT 118 attenuates the output signal of amplifier 114 according to the gain control signal, amplitude/phase comparator 110 calculates amplitude and phase errors between the attenuated signal with a frequency equalized by frequency conversion sections 120 and 121 and the input signal of amplifier 114 and phase/amplitude correction section 108 corrects the transmission baseband signal and gain control signal so as to eliminate the errors. This makes it possible to correct the amplitude and phase shifts of the transmission signal during a communication with other apparatuses and reduce the size and cost of the apparatus.
摘要翻译：基带信号发生器107输出具有用于设置天线方向性的系数的发送基带信号和用于发送功率放大器114的增益控制信号，发送功率放大器114以与增益控制信号相对应的增益放大发送基带信号，并发送信号来自天线102。 ATT 118根据增益控制信号衰减放大器114的输出信号，振幅/相位比较器110计算由频率转换部分120和121等效的频率的衰减信号与放大器114的输入信号和相位之间的相位误差 /幅度校正部分108校正发送基带信号和增益控制信号，以消除误差。这使得可以在与其他设备的通信期间校正传输信号的幅度和相移，并且减小设备的尺寸和成本。

20. 发明授权

US07936811B2 Modulation apparatus, modulation method, and demodulation apparatus 有权
标题翻译：调制装置，调制方法和解调装置
公开(公告)号：US07936811B2
公开(公告)日：2011-05-03
申请号：US11597420
申请日：2005-05-24
申请人： Genichiro Ohta , Daichi Imamura , Keiji Takakusaki , Mitsuru Uesugi
发明人： Genichiro Ohta , Daichi Imamura , Keiji Takakusaki , Mitsuru Uesugi
IPC分类号： H04L27/00 , H04L25/03
CPC分类号： H04L27/2637 , H04L27/2649
摘要： A modulating device capable of generating an OFDM signal and having a drastically improved frequency use efficiency. The modulating device has modulators (6, 8 (11, 13, 106, 108, 111, 113)) for modulating a signal to be modulated and having a Nyquist roll-off frequency characteristic with a carrier frequency having a difference two times the Nyquist frequency and combiners (10(15, 110, 115)) for generating modulation output having a speed two times that of the signal to demodulated and the same Nyquist roll-off slope as the signal to be modulated by combining the outputs of the modulators (6, 8 (11, 13, 106, 108, 111, 113)). Thus a double speed wave can be superposed on the same frequency without varying the roll-off slope of the Nyquist characteristic, and therefore an OFDM signal (19) having a drastically improved frequency use efficiency is provided.
摘要翻译：一种调制装置，能够产生OFDM信号并具有显着提高的频率使用效率。调制装置具有用于调制要调制的信号并且具有奈奎斯特滚降频率特性的调制器（6,8（11,13,106,108,111,113）），其载波频率的差值是奈奎斯特频率和组合器（10（15,110,115）），用于产生具有要解调的信号的速度的两倍的调制输出和与要调制的信号相同的奈奎斯特滚降斜率（通过组合调制器的输出） 6，8（11，13，106，108，111，113））。因此，可以将双速波叠加在同一频率上，而不改变奈奎斯特特性的滚降斜率，因此提供了频率提高的频率使用效率的OFDM信号（19）。

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