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21. 发明授权

US07209765B1 Wireless data communication system, wireless data communication method and communication apparatus 有权
标题翻译：无线数据通信系统，无线数据通信方式和通信装置
公开(公告)号：US07209765B1
公开(公告)日：2007-04-24
申请号：US11493821
申请日：2006-07-27
申请人： Shigenori Hayase , Shinji Murai , Tomoaki Ishifuji
发明人： Shigenori Hayase , Shinji Murai , Tomoaki Ishifuji
IPC分类号： H04Q7/20
CPC分类号： H04B7/0617
摘要： A wireless communication system has no limitation in the number of AP antennas and UT antennas, and determines the parallel-communication data units to be a maximum value of MIMO communication, such that it provides a MIMO-SDMA wireless data communication system having superior transmission characteristics. The MIMO-SDMA wireless data communication system includes a single AP (Access Point) and U UTs (User Terminals) communicating with the AP using the same frequency signal at the same time. The UT includes the SDMA reception (Rx) processor, and synthesizes Rx signals of antennas, such that it controls the number of Rx data units. By the control of the number of Rx data units, the communication system controls the number of parallel-communication data units to be equal to a maximum value capable of being implemented by the MIMO-SDMA wireless data communication. The AP informs the UTs of a coefficient matrix required for the SDMA Rx process, prior to transmitting actual data.
摘要翻译：无线通信系统对AP天线和UT天线的数量没有限制，并且将并行通信数据单元确定为MIMO通信的最大值，使得其提供具有优异传输特性的MIMO-SDMA无线数据通信系统。 MIMO-SDMA无线数据通信系统包括使用相同频率信号同时与AP通信的单个AP（接入点）和U UT（用户终端）。 UT包括SDMA接收（Rx）处理器，并且合成天线的Rx信号，使得它控制Rx数据单元的数量。通过控制Rx数据单元的数量，通信系统将并行通信数据单元的数量控制为能够通过MIMO-SDMA无线数据通信实现的最大值。在发送实际数据之前，AP向UT通知SDMA Rx进程所需的系数矩阵。

22. 发明授权

US07194210B2 Wavelength division multiplexing optical transmission equipment and method of amplifying optical wavelength division multiplexed signals 失效
公开(公告)号：US07194210B2
公开(公告)日：2007-03-20
申请号：US10052308
申请日：2002-01-17
申请人： Tetsuya Uda , Shigehiro Takashima , Shigenori Hayase , Yoshimasa Kusano , Satoshi Asamizu , Hirofumi Nakano
发明人： Tetsuya Uda , Shigehiro Takashima , Shigenori Hayase , Yoshimasa Kusano , Satoshi Asamizu , Hirofumi Nakano
IPC分类号： H04B10/00
CPC分类号： H04B10/294 , H04J14/0221
摘要： Optical signal transmission is improved by reducing the variance in light output level and OSNR by adjusting optical signal intensity and gain tilt, taking SRS influence into consideration.

23. 发明授权

US08345785B2 Wireless data communication system and wireless data communication method 失效
标题翻译：无线数据通信系统和无线数据通信方式
公开(公告)号：US08345785B2
公开(公告)日：2013-01-01
申请号：US11211616
申请日：2005-08-26
申请人： Shigenori Hayase
发明人： Shigenori Hayase
IPC分类号： H04B7/02 , H04L1/02
CPC分类号： H04B7/0619 , H04B7/0413 , H04B7/0678 , H04L25/0226 , H04L27/364 , H04L27/3863
摘要： In MIMO transmission between M transmission antennas and N reception antennas, a transmission signal vector is set as a vector having 2M elements comprising in-phase components and quadrature components of M complex signals, a reception signal vector is set as a vector having 2N elements comprising in-phase components and quadrature components of N complex signals, and a transfer matrix is set as a real matrix comprising 2N rows and 2M columns. Then, a transfer matrix containing IQ mismatch is obtained based on a training signal, thereby executing MIMO encoding and decoding. For learning of the transfer matrix, a training signal which has two linearly-independent signal points on a constellation for each of the transmission antennas is used. With such an arrangement, in MIMO transmission, IQ mismatch in a quadrature modulator and a quadrature demodulator can be compensated and a bit error rate can be improved.
摘要翻译：在M个发送天线与N个接收天线之间的MIMO传输中，发送信号矢量被设定为具有M个复数信号的同相分量和正交分量的2M个元素的向量，接收信号矢量被设定为具有2N个元素的矢量， N个复信号的同相分量和正交分量，并且传输矩阵被设置为包括2N行和2M列的实数矩阵。然后，基于训练信号获得包含IQ失配的传送矩阵，从而执行MIMO编码和解码。为了学习传输矩阵，使用在每个发射天线的星座上具有两个线性独立的信号点的训练信号。通过这样的布置，在MIMO传输中，可以补偿正交调制器和正交解调器中的IQ失配，并且可以提高误码率。

24. 发明授权

US07813655B2 Signal waveform deterioration compensator 有权
标题翻译：信号波形恶化补偿器
公开(公告)号：US07813655B2
公开(公告)日：2010-10-12
申请号：US10557613
申请日：2003-12-16
申请人： Nobuhiko Kikuchi , Shigenori Hayase
发明人： Nobuhiko Kikuchi , Shigenori Hayase
IPC分类号： H04B10/00
CPC分类号： H04B10/2507
摘要： The waveform deterioration detection range is broadened and multi bit rates can be handled. A chromatic dispersion compensator (or polarization mode dispersion compensator) (102) receives a waveform-deteriorated NRZ optical signal entered through an input fiber (101) and compensates it. On the other hand, an optical detector (106) receives part of output light and a sampling circuit (A/D converter) (107) performs asynchronous sampling of received waveform intensity. A control circuit (110) calculates the nth even moment (n is 4 or more) from an obtained waveform amplitude histogram and performs control to minimize its value.
摘要翻译：波形恶化检测范围扩大，可以处理多位速率。色散补偿器（或偏振模色散补偿器）（102）接收通过输入光纤（101）输入的波形恶化的NRZ光信号并对其进行补偿。另一方面，光检测器（106）接收输出光的一部分，采样电路（A / D转换器）（107）对接收到的波形强度进行异步采样。控制电路（110）根据得到的波形幅度直方图计算第n个偶数（n为4以上），进行控制使其值最小化。

25. 发明申请

US20090060073A1 METHOD FOR SUPPRESSING PEAK POWER OF ORTHOGONALLY MULTIPLEXED SIGNAL, PEAK POWER SUPPRESSING CIRCUIT, AND TRANSMITTER 有权
标题翻译：用于抑制正交多路信号峰值功率的方法，峰值功率抑制电路和发射机
公开(公告)号：US20090060073A1
公开(公告)日：2009-03-05
申请号：US12199595
申请日：2008-08-27
申请人： Takashi Yano , Shigenori Hayase , Masashi Naito
发明人： Takashi Yano , Shigenori Hayase , Masashi Naito
IPC分类号： H04J11/00
CPC分类号： H04L27/2614 , H04L27/2618 , H04L27/2623 , H04L27/2624
摘要： To suppress the peak of the orthogonal multiplex transmission signal which is small in deterioration of the quality of the reception signal by generating the cancellation waveform in synchronization with the timing of the symbol of the transmission signal. There is provided a peak suppressing method that suppresses peaks of an orthogonally multiplexed signal whose orthogonality is ensured in given time units, the method comprising: a first step of detecting the peaks of the orthogonally multiplexed signal; a second step of generating a peak cancellation waveform based on the detected peaks of the orthogonally multiplexed signal; and a third step of removing the peak of the orthogonally multiplexed signal from the orthogonally multiplexed signal using the generated peak cancellation waveform. The second step comprises generating the peak cancellation waveform in said time units of the orthogonally multiplexed signal.
摘要翻译：通过与发送信号的符号的定时同步地生成消除波形来抑制接收信号的质量恶化的正交多路传输信号的峰值。提供一种峰值抑制方法，其抑制以给定时间单位确保正交性的正交复用信号的峰值，该方法包括：检测正交多路复用信号的峰值的第一步骤; 基于检测到的正交多路复用信号的峰值产生峰值消除波形的第二步骤; 以及使用所生成的峰值抵消波形从正交多路复用信号中除去正交多路复用信号的峰值的第三步骤。第二步包括以正交复用信号的所述时间单位产生峰值消除波形。

26. 发明申请

US20060056546A1 Orthogonality detector, and quadrature demodulator and sampling quadrature demodulator using detector thereof 有权
标题翻译：正交检波器，使用其检波器的正交解调器和采样正交解调器
公开(公告)号：US20060056546A1
公开(公告)日：2006-03-16
申请号：US11005073
申请日：2004-12-07
申请人： Shigenori Hayase , Kazuyuki Hori
发明人： Shigenori Hayase , Kazuyuki Hori
IPC分类号： H04L27/22 , H03D3/00 , H04J11/00
CPC分类号： H03D7/163 , H03D3/245 , H04L27/3863
摘要： To detect phase mismatches between in-phase and quadrature signals of a quadrature demodulator. The phase mismatches can be detected using the signals obtained by removing high frequency components of output of a multiplier by a low pass filter, the output being the product of the in-phase signals of which low frequency components are removed by a first high pass filter by the quadrature signals of which low frequency components are removed by a second high pass filter.
摘要翻译：检测正交解调器的同相和正交信号之间的相位失配。可以使用通过低通滤波器去除乘法器的输出的高频分量而获得的信号来检测相位失配，该输出是通过第一高通滤波器去除低频分量的同相信号的乘积通过第二高通滤波器去除低频分量的正交信号。

27. 发明授权

US08315338B2 Orthogonality detector, and quadrature demodulator and sampling quadrature demodulator using detector thereof 有权
标题翻译：正交检波器，使用其检波器的正交解调器和采样正交解调器
公开(公告)号：US08315338B2
公开(公告)日：2012-11-20
申请号：US13043433
申请日：2011-03-08
申请人： Shigenori Hayase , Kazuyuki Hori
发明人： Shigenori Hayase , Kazuyuki Hori
IPC分类号： H04L27/00
CPC分类号： H03D7/163 , H03D3/245 , H04L27/3863
摘要： To detect phase mismatches between in-phase and quadrature signals of a quadrature demodulator. The phase mismatches can be detected using the signals obtained by removing high frequency components of output of a multiplier by a low pass filter, the output being the product of the in-phase signals of which low frequency components are removed by a first high pass filter by the quadrature signals of which low frequency components are removed by a second high pass filter.
摘要翻译：检测正交解调器的同相和正交信号之间的相位失配。可以使用通过低通滤波器去除乘法器的输出的高频分量而获得的信号来检测相位失配，该输出是通过第一高通滤波器去除低频分量的同相信号的乘积通过第二高通滤波器去除低频分量的正交信号。

28. 发明申请

US20110242962A1 Method of Multiuser Mimo Wireless Communication and Device of Multiuser Mimo Wireless Communication 审中-公开
标题翻译：多用户Mimo无线通信的方法和多用户Mimo无线通信的设备
公开(公告)号：US20110242962A1
公开(公告)日：2011-10-06
申请号：US13126405
申请日：2008-10-28
申请人： Shigenori Hayase , Takashi Yano , Yunjian Jia
发明人： Shigenori Hayase , Takashi Yano , Yunjian Jia
IPC分类号： H04J11/00
CPC分类号： H04B7/0426
摘要： The present invention achieves a communication speed close to a theoretical limitation with suppressing a computing amount and without increasing protocol overhead. In a multiuser MIMO wireless communication method according to the present invention, a receive weight matrix is determined based on a channel matrix, the channel matrix is updated by a product of the receive weight matrix and a channel matrix, a transmitted signal is generated in a ZF-DPC method based on the updated channel matrix and transmitted, and the receive weight matrix is multiplied with a received signal and then subjected to a DPC decoding. A method of determining a receive weight matrix is to take a conjugate transpose matrix of a left singular matrix obtained when subjecting the channel matrix to a singular value decomposition.
摘要翻译：本发明通过抑制计算量并且不增加协议开销来实现接近理论限制的通信速度。在根据本发明的多用户MIMO无线通信方法中，基于信道矩阵确定接收权重矩阵，通过接收权重矩阵和信道矩阵的乘积更新信道矩阵，发送信号在基于更新的信道矩阵并发送的ZF-DPC方法，并将接收权重矩阵与接收信号相乘，然后进行DPC解码。一种确定接收权重矩阵的方法是采用将信道矩阵进行奇异值分解时获得的左奇异矩阵的共轭转置矩阵。

29. 发明申请

US20110212744A1 TRANSMIT POWER CONTROL METHOD FOR RADIO COMMUNICATION SYSTEM AND RADIO BASE STATION DEVICE 失效
标题翻译：用于无线电通信系统和无线电基站的发射功率控制方法
公开(公告)号：US20110212744A1
公开(公告)日：2011-09-01
申请号：US12986377
申请日：2011-01-07
申请人： Rintaro KATAYAMA , Satoshi Tamaki , Tomonori Yamamoto , Hirotake Ishii , Shigenori Hayase
发明人： Rintaro KATAYAMA , Satoshi Tamaki , Tomonori Yamamoto , Hirotake Ishii , Shigenori Hayase
IPC分类号： H04W52/06
CPC分类号： H04W52/143 , H04W52/241 , H04W52/245
摘要： A communication device includes pilot signal sending part and transmit power control part and holds a criterion value indicating target channel quality for mobile stations within the area covered by the base station. It creates quality data from reports from one or plural mobile stations, stores the quality data, creates a first representative value indicating average channel quality for the mobile station(s) from the stored quality data, and changes the transmit power depending on the result of comparison between the first representative value and the criterion value. It creates a second representative value indicating distribution of low channel quality from the stored quality data and updates the criterion value depending on the result of comparison between the second representative value and the criterion value.
摘要翻译：通信设备包括导频信号发送部分和发射功率控制部分，并且保持指示由基站覆盖的区域内的移动台的目标信道质量的标准值。它从一个或多个移动站的报告创建质量数据，存储质量数据，从存储的质量数据创建指示移动站的平均信道质量的第一代表值，并且根据所存储的质量数据的结果来改变发送功率第一代表值与标准值之间的比较。它从存储的质量数据创建指示低通道质量的分布的第二代表值，并且根据第二代表值与标准值之间的比较结果来更新标准值。

30. 发明申请

US20070166052A1 Wavelength division multiplexing optical transmission equipment and method of amplifying optical wavelength division multiplexed signals 失效
标题翻译：波分复用光传输设备和放大光波分复用信号的方法
公开(公告)号：US20070166052A1
公开(公告)日：2007-07-19
申请号：US11711951
申请日：2007-02-27
申请人： Tetsuya Uda , Shigehiro Takashima , Shigenori Hayase , Yoshimasa Kusano , Satoshi Asamizu , Hirofumi Nakano
发明人： Tetsuya Uda , Shigehiro Takashima , Shigenori Hayase , Yoshimasa Kusano , Satoshi Asamizu , Hirofumi Nakano
IPC分类号： H04B10/00
CPC分类号： H04B10/294 , H04J14/0221
摘要： Optical signal transmission is improved by reducing the variance in light output level and OSNR by adjusting optical signal intensity and gain tilt, taking SRS influence into consideration.
摘要翻译：通过调整光信号强度和增益倾斜，通过减小光输出电平和OSNR的差异来改善光信号传输，考虑SRS影响。

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