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21. 发明申请

US20090075588A1 METHOD AND APPARATUS FOR CONTROLLING A RELAY STATION IN A MULTI-HOP RELAY NETWORK 有权
标题翻译：用于控制多路继电器网络中的继电器的方法和装置
公开(公告)号：US20090075588A1
公开(公告)日：2009-03-19
申请号：US12191762
申请日：2008-08-14
申请人： Chenxi ZHU , Michiharu Nakamura , Dorin Viorel
发明人： Chenxi ZHU , Michiharu Nakamura , Dorin Viorel
IPC分类号： H04B7/14
CPC分类号： H04B7/2606 , H04B7/155 , H04L27/2602 , H04L27/2655 , H04W72/1257 , H04W84/047
摘要： A method of controlling a relay station in a cell of a multi-hop relay network in accordance with a one-way propagation delay between a base station in the cell and the relay station. A relay station in a cell of a multi-hop relay network including means for controlling the signal flow between the relay station and the various other stations in the cell in accordance with a one-way propagation delay between a base station in the cell and the relay station.
摘要翻译：根据小区中的基站与中继站之间的单向传播延迟来控制多跳中继网络的小区中的中继站的方法。包括多跳中继网络的小区中的中继站，包括根据小区中的基站和小区中的基站之间的单向传播延迟来控制中继站与小区中的各个其他站之间的信号流的装置，中继站。

22. 发明申请

US20080232513A1 APPARATUS AND METHOD FOR PREAMBLE DETECTION AND INTEGER CARRIER FREQUENCY OFFSET ESTIMATION 有权
标题翻译：预先检测和整体载波频偏估计的装置和方法
公开(公告)号：US20080232513A1
公开(公告)日：2008-09-25
申请号：US12044120
申请日：2008-03-07
申请人： Xin Wang , Yuuta Nakaya , Syuusaku Suzuki , Michiharu Nakamura , Hiroyuki Hayashi
发明人： Xin Wang , Yuuta Nakaya , Syuusaku Suzuki , Michiharu Nakamura , Hiroyuki Hayashi
IPC分类号： H04L27/06 , H03D1/00
CPC分类号： H04L27/2675 , H04L27/2659
摘要： This invention provides an apparatus and method for preamble detection and integer carrier frequency offset estimation, which method comprises the steps of: determining the window of useful subcarriers in preamble transformed to frequency domain based on pre-determined possible integer carrier frequency offset and the length of the preamble, so as to select the useful subcarriers; extracting a plurality of subcarrier sequences having a length equal to that of the preamble from the useful subcarriers; calculating conjugative multiplications of each subcarrier and its neighboring subcarriers in the subcarrier sequences extracted; acquiring the real part of the conjugative multiplications; calculating the cross correlations between the real part of the conjugative multiplications and known preambles modulated by DBPSK, and outputting the calculated correlation values; and detecting preamble index of a target base station with the calculated correlation values to select a target cell, and estimating integer carrier frequency offset with respect to the target base station.
摘要翻译：本发明提供了一种用于前导码检测和整数载波频偏估计的装置和方法，该方法包括以下步骤：基于预定可能的整数载波频率偏移量确定前导码转换到频域的有用子载波的窗口，前导码，以便选择有用的子载波; 从有用的子载波中提取长度等于前导码长度的多个子载波序列; 计算提取的子载波序列中每个子载波及其相邻子载波的共轭乘法; 获取共轭乘法的实部; 计算共轭乘法的实部与由DBPSK调制的已知前同步之间的互相关，并输出所计算的相关值; 以及使用所计算的相关值检测目标基站的前导码索引，以选择目标小区，并且针对目标基站估计整数载波频率偏移。

23. 发明申请

US20070196072A1 WIRELESS COMMUNICATION SYSTEM AND RECEIVING DEVICE 有权
标题翻译：无线通信系统和接收设备
公开(公告)号：US20070196072A1
公开(公告)日：2007-08-23
申请号：US11415113
申请日：2006-05-02
申请人： Liang Zhou , Michiharu Nakamura
发明人： Liang Zhou , Michiharu Nakamura
IPC分类号： G02B6/00
CPC分类号： H04L25/03331 , H04B7/0417 , H04B7/0626 , H04L1/0631 , H04L1/065
摘要： The present invention is to provide a wireless communication system and a receiving device each capable of restraining a circuit scale and obtaining an excellent error rate performance. In a wireless communication system in which a transmitting device and a receiving device communicate in an orthogonal frequency division multiplexing system, the transmitting device includes a partition unit partitioning a transmission data sequence into a plurality of data streams and a mapping unit mapping the plurality of data streams to each of transmitting antennas by using, for a precoding matrix, columns, corresponding to a stream count of the plurality of data streams, of a right singular matrix acquired by singular value decomposition of a channel matrix, and the receiving device includes a decoding unit that Viterbi-decodes the received signals by weighting a path metric by using a weighting coefficient corresponding to a signal-to-noise ratio obtained from the present channel matrix.
摘要翻译：本发明是提供一种无线通信系统和接收装置，其能够抑制电路规模并获得出色的性能。在发送装置和接收装置在正交频分复用系统中进行通信的无线通信系统中，发送装置具有将发送数据序列分割成多个数据流的分割部，以及映射单元通过对于预编码矩阵使用与多个数据流的流计数相对应的通过信道矩阵的奇异值分解获取的右奇异矩阵的列，发送到每个发送天线，并且接收装置包括解码维特比通过使用与从当前信道矩阵获得的信噪比对应的加权系数对路径度量进行加权来对接收信号进行解码的单元。

24. 发明申请

US20070189211A1 Adaptive modulation and coding 审中-公开
标题翻译：自适应调制和编码
公开(公告)号：US20070189211A1
公开(公告)日：2007-08-16
申请号：US11783158
申请日：2007-04-06
申请人： Yassin Awad , Michiharu Nakamura
发明人： Yassin Awad , Michiharu Nakamura
IPC分类号： H04Q7/00
CPC分类号： H04L1/0026 , H04B1/70755 , H04L1/0003 , H04L1/0009 , H04L1/0021 , H04L1/0025 , H04L1/0031 , H04L1/1812 , H04W28/18
摘要： An apparatus for reporting received signal quality to a transmitter includes a unit operable to measure a received signal quality in a receiver, a unit operable to report the measuring received signal quality to the transmitter, and a unit operable to report a selected modulation and coding scheme to the transmitter.
摘要翻译：一种用于将接收到的信号质量报告给发射机的装置包括可操作以测量接收机中的接收信号质量的单元，可操作以将测量接收信号质量报告给发射机的单元，以及可操作以报告所选择的调制和编码方案的单元到发射机。

25. 发明申请

US20060198472A1 Transmission system, transmitter device, and receiver device 审中-公开
标题翻译：传输系统，发射机设备和接收机设备
公开(公告)号：US20060198472A1
公开(公告)日：2006-09-07
申请号：US11196817
申请日：2005-08-03
申请人： Michiharu Nakamura , Kohji Takeo
发明人： Michiharu Nakamura , Kohji Takeo
IPC分类号： H04L27/06
CPC分类号： H04L27/2676 , H04L25/0224 , H04L25/03159 , H04L27/2605 , H04L27/2607 , H04L27/2626 , H04L27/2662 , H04L27/2688
摘要： A transmission system which is simple in construction and yet can effectively avoid inter-symbol interference. A transmitter device transmits a signal block while repeating the same signal block twice consecutively. A receiver device receives the signal blocks, performs Fourier transform operation on the two identical signal blocks at respective predetermined timings, matches the phases of the two signal blocks with each other by waveform equalization in frequency domain, combines the signal blocks, and demodulates the combined signal block. With the transmission system, various propagation path conditions, in particular, changes in delay time can be flexibly coped with by just appropriately setting the Fourier transform operation timing, whereby inter-symbol interference can be avoided more effectively than in the case of using fixed-length GI.
摘要翻译：一种传输系统，结构简单，可有效避免符号间干扰。发射机设备在连续两次重复相同的信号块的同时传输信号块。接收机装置接收信号块，在相应的预定定时对两个相同的信号块进行傅里叶变换操作，通过频域中的波形均衡将两个信号块的相位彼此匹配，组合信号块，并对组合信号块。利用传输系统，通过恰当地设置傅里叶变换操作定时，可以灵活地应对各种传播路径条件，特别是延迟时间的变化，从而与使用固定频率的情况相比，可以更有效地避免符号间干扰，长度GI。

26. 发明授权

US06563859B1 Receiver and receiving method in multi-carrier spread-spectrum communications 失效
标题翻译：多载波扩频通信中的接收和接收方法
公开(公告)号：US06563859B1
公开(公告)日：2003-05-13
申请号：US09440341
申请日：1999-11-15
申请人： Yasuyuki Oishi , Michiharu Nakamura , Kazuo Nagatani , Hajime Hamada , Yoshihiko Asano
发明人： Yasuyuki Oishi , Michiharu Nakamura , Kazuo Nagatani , Hajime Hamada , Yoshihiko Asano
IPC分类号： H04B1707
CPC分类号： H04B1/7115 , H04B1/692 , H04L5/026 , H04L27/2647
摘要： A multi-carrier signal received by an antenna is converted into a signal of an IF band by an RX, and converted into an I signal and a Q signal by an quadrature detector. The I signal and the Q signal as multi-carrier signals are converted into digital signals by an A/D converter, and input to complex filters. The complex filters extract a complex signal having a specified carrier. Then, complex filters shift the center frequency of the extracted complex signal into 0 Hz. The obtained base band signal is input to a finger, and despread and demodulated. The despread and demodulated signal is RAKE synthesized by a synthesis unit, and transmitted to a signal discrimination unit.
摘要翻译：由天线接收的多载波信号通过RX被转换为IF频带的信号，并由正交检波器转换为I信号和Q信号。作为多载波信号的I信号和Q信号由A / D转换器转换成数字信号，并输入到复数滤波器。复数滤波器提取具有指定载波的复信号。然后，复数滤波器将提取的复信号的中心频率移动到0Hz。所获得的基带信号被输入到手指，并被解扩和解调。解扩信号由合成单元RAKE合成，发送到信号鉴别单元。

27. 发明授权

US4772925A High speed switching field effect transistor 失效
标题翻译：高速开关场效应晶体管
公开(公告)号：US4772925A
公开(公告)日：1988-09-20
申请号：US935171
申请日：1986-11-26
申请人： Tadashi Fukuzawa , Ken Yamaguchi , Susumu Takahashi , Hisao Nakashima , Michiharu Nakamura
发明人： Tadashi Fukuzawa , Ken Yamaguchi , Susumu Takahashi , Hisao Nakashima , Michiharu Nakamura
IPC分类号： H01L29/80 , H01L21/331 , H01L21/338 , H01L29/10 , H01L29/73 , H01L29/778 , H01L29/812 , H01L27/12 , H01L29/161 , H01L29/205
CPC分类号： H01L29/7783 , H01L29/1075
摘要： The semiconductor device of this invention consists at least of a laminate of a semi-insulating or p-type first semiconductor layer having a forbidden band width E.sub.g1, an undoped or p.sup.- -type second semiconductor layer having a forbidden band width E.sub.g2 and an n-type third semiconductor layer having forbidden band width E.sub.g3. The laminate is deposited on a predetermined semiconductor substrate and the forbidden band width has the relation E.sub.g2
摘要翻译：本发明的半导体器件至少包括具有禁带宽度Eg1的半绝缘或p型第一半导体层的层压体，具有禁带宽度Eg2的未掺杂或p型第二半导体层，以及n 具有禁带宽度Eg3的第三半导体层。层压体沉积在预定的半导体衬底上，禁带宽度具有关系Eg2

28. 发明授权

US4430741A Semiconductor laser device 失效
标题翻译：半导体激光器件
公开(公告)号：US4430741A
公开(公告)日：1984-02-07
申请号：US225399
申请日：1981-01-15
申请人： Tadashi Fukuzawa , Michiharu Nakamura , Susumu Takahashi
发明人： Tadashi Fukuzawa , Michiharu Nakamura , Susumu Takahashi
IPC分类号： H01S5/00 , H01L27/15 , H01S5/026 , H01S5/06 , H01S5/062 , H01S5/227 , H01S3/19
CPC分类号： H01S5/06203 , H01L27/15 , H01S5/227 , H01S5/0622 , H01S5/2275
摘要： Disclosed is a semiconductor laser device comprising a semiconductor assembly which serves to effect laser oscillation and in which first, second and third semiconductor layers are successively stacked on a predetermined semiconductor body, at least the first and third semiconductor layers being small in the refractive index relative to the second semiconductor layer and great in the forbidden band gap relative thereto and having conductivity types opposite to each other, and means to spread depletion regions within at least a part of a current path for effecting the laser oscillation and in a manner to intersect with the current path. A small-sized semiconductor laser device capable of fast modulation can be realized.
摘要翻译：公开了一种半导体激光器件，其包括用于实现激光振荡的半导体组件，并且其中第一，第二和第三半导体层被连续堆叠在预定半导体本体上，至少第一和第三半导体层的折射率相对较小并且相对于第二半导体层具有大的禁带宽度，并且具有彼此相反的导电类型，以及在电流路径的至少一部分内扩散耗尽区以实现激光振荡并以与当前路径。能够实现能够进行快速调制的小型半导体激光装置。

29. 发明授权

US4361887A Semiconductor light emitting element 失效
标题翻译：半导体发光元件
公开(公告)号：US4361887A
公开(公告)日：1982-11-30
申请号：US125779
申请日：1980-02-29
申请人： Michiharu Nakamura , Motohisa Hirao , Shigeo Yamashita , Tadashi Fukuzawa , Junichi Umeda
发明人： Michiharu Nakamura , Motohisa Hirao , Shigeo Yamashita , Tadashi Fukuzawa , Junichi Umeda
IPC分类号： H01L29/80 , H01L21/338 , H01L27/095 , H01L27/15 , H01L29/812 , H01S5/00 , H01S5/026 , H01S5/042 , H01S3/19
CPC分类号： H01S5/0265
摘要： A semiconductor laser light emitting element comprises a semiconductor substrate, a laminate region of semiconductor layers having at least a first, a second and a third semiconductor layer formed over the substrate and having a p-n junction defined therein. The first and third semiconductor layers have smaller refractive indices and greater forbidden band gaps than the second semiconductor layer and are opposite in conductivity type to each other. Provided are on the substrate a field effect transistor section having first and second electrodes and a gate electrode disposed between the first and second electrodes, a means for serving as an optical resonator for emitting light in the lengthwise direction of the p-n junction. A means is formed on one surface of the laminate region for injecting current into the third semiconductor layer, the current injection means is short-circuited with the first electrode of the field transistor section and a means is formed on the substrate for receiving the current injected from the current injecting means.
摘要翻译：半导体激光发光元件包括半导体衬底，半导体层的层叠区域，其至少形成在衬底上并具有限定在其中的p-n结的第一，第二和第三半导体层。第一和第三半导体层具有比第二半导体层更小的折射率和更大的禁带宽度，并且与导电类型相反。在基板上设置有具有第一和第二电极的场效应晶体管部分和设置在第一和第二电极之间的栅电极，用作用于在p-n结的长度方向上发光的光谐振器的装置。在层叠区域的一个表面上形成用于将电流注入到第三半导体层中的装置，电流注入装置与场晶体管部分的第一电极短路，并且在基板上形成用于接收注入电流的装置从目前的注射手段。

30. 发明授权

US08576771B2 Adaptive modulation and coding 失效
标题翻译：自适应调制和编码
公开(公告)号：US08576771B2
公开(公告)日：2013-11-05
申请号：US11783159
申请日：2007-04-06
申请人： Yassin Aden Awad , Michiharu Nakamura
发明人： Yassin Aden Awad , Michiharu Nakamura
IPC分类号： H04W60/00
CPC分类号： H04L1/0026 , H04B1/70755 , H04L1/0003 , H04L1/0009 , H04L1/0021 , H04L1/0025 , H04L1/0031 , H04L1/1812 , H04W28/18
摘要： A method of reporting received signal quality to a transmitter includes measuring a received signal quality in a receiver, and selectively performing the steps of reporting the received signal quality to the transmitter, and reporting a selected modulation and coding scheme to the transmitter.
摘要翻译：将接收到的信号质量报告给发射机的方法包括测量接收机中的接收信号质量，并且选择性地执行将接收到的信号质量报告给发射机的步骤，并将所选择的调制和编码方案报告给发射机。

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