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1. 发明授权

US08155219B2 Apparatus and method for peak suppression in wireless communication systems 有权
标题翻译：无线通信系统中峰值抑制的装置和方法
公开(公告)号：US08155219B2
公开(公告)日：2012-04-10
申请号：US12175572
申请日：2008-07-18
申请人： Shigenori Hayase , Takashi Yano , Masaaki Shida , Keisuke Yamamoto , Yunjian Jia
发明人： Shigenori Hayase , Takashi Yano , Masaaki Shida , Keisuke Yamamoto , Yunjian Jia
IPC分类号： H04K1/10
CPC分类号： H04L27/2623 , H04L5/0023 , H04L5/006 , H04L25/0224 , H04L27/2626 , H04L27/2647
摘要： A method for suppressing the peak-to-average power ratio (PAPR) while limiting deterioration in signal characteristics in wireless communication devices utilizing wireless communication methods (OFDM method, MIMO method) for multiplexing and sending multiple signals. A weight calculator unit sets a large weight for transmit signals whose channel quality is poor, relative to the weight of each base component based on the acquired channel quality. A peak detector unit detects the peak from the signal string after unitary conversion, and extracts a distortion component to apply for suppressing the peak. A peak suppression signal generation unit calculates the peak signal from the distortion component and weight of each base component, to add to each base component, and adds the peak suppression signal to each base component prior to unitary transformation.
摘要翻译：一种抑制峰值与平均功率比（PAPR）的方法，同时利用用于复用和发送多个信号的无线通信方法（OFDM方法，MIMO方法）来限制无线通信装置中的信号特性的劣化。权重计算器单元基于所获取的信道质量，相对于每个基本分量的权重，对信道质量差的发送信号设置较大的权重。峰值检测器单元在单位转换之后从信号串检测峰值，并提取失真分量以应用于抑制峰值。峰值抑制信号生成单元根据每个基本分量的失真分量和权重来计算峰值信号，以添加到每个基本分量，并且在单一变换之前将峰值抑制信号加到每个基本分量。

2. 发明申请

US20070286102A1 Wireless Communication System Capable of Switching Protocol 审中-公开
标题翻译：无线通信系统能够开关协议
公开(公告)号：US20070286102A1
公开(公告)日：2007-12-13
申请号：US10587181
申请日：2004-03-05
申请人： Isao Shimokawa , Masayuki Miyazaki , Akira Maeki , Masaaki Shida
发明人： Isao Shimokawa , Masayuki Miyazaki , Akira Maeki , Masaaki Shida
IPC分类号： H04B7/00
CPC分类号： H04W74/08 , H04W36/14 , H04W48/18 , H04W52/0206 , H04W52/0216 , H04W52/0219 , H04W74/006 , H04W80/00 , H04W88/06 , H04W92/10
摘要： A wireless communication system comprising a management server, base stations, and a plurality of node terminals, wherein a wireless communication protocol to be applied is switched dynamically based on such indices as but error, packet error rate, the number of times of retransmitting packets, throughput/power consumption that may occur between each base station and nodes.
摘要翻译：一种无线通信系统，包括管理服务器，基站和多个节点终端，其中，基于诸如错误，分组错误率，重传分组的次数等指标动态地切换要应用的无线通信协议，每个基站和节点之间可能发生的吞吐量/功耗。

3. 发明申请

US20070274256A1 Systems and methods for wireless communication 有权
标题翻译：用于无线通信的系统和方法
公开(公告)号：US20070274256A1
公开(公告)日：2007-11-29
申请号：US11797321
申请日：2007-05-02
申请人： Shinji Murai , Tomoaki Ishifuji , Takashi Yano , Masaaki Shida , Shigenori Hayase
发明人： Shinji Murai , Tomoaki Ishifuji , Takashi Yano , Masaaki Shida , Shigenori Hayase
IPC分类号： H04Q7/00
CPC分类号： H04W72/085 , H04W28/18 , H04W72/046
摘要： In a wireless communication system for communicating with a plurality of stations at the same point of time with the same frequency using a Space Division Multiple Access (SDMA), wireless resources are allocated by a first decision unit which evaluates performance of each station obtained when the SDMA is used and which determines periods of time to be allocated to groups of stations formed according to the SDMA technique. Using a first evaluation unit and a second evaluation unit to evaluate performance required by each station and each application, the first decision unit allocates the wireless resources to the stations. It is therefore possible that the wireless resources are efficiently allocated to the stations while preventing an event in which the wireless resources are excessive or insufficient for required quality of service.
摘要翻译：在用于使用空分多址（SDMA）以相同频率在同一时间点与多个站进行通信的无线通信系统中，无线资源由第一决策单元分配，该第一决策单元评估当使用SDMA，并确定要分配给根据SDMA技术形成的站组的时间段。使用第一评估单元和第二评估单元来评估每个站点和每个应用所需的性能，第一决策单元向站点分配无线资源。因此，可以将无线资源有效地分配给站，同时防止无线资源过多或不足以满足所需服务质量的事件。

4. 发明申请

US20070087760A1 Method, system, and apparatus for detecting a position of a terminal in a network 有权
公开(公告)号：US20070087760A1
公开(公告)日：2007-04-19
申请号：US11633127
申请日：2006-12-04
申请人： Atsushi Ogino , Takashi Yano , Katsuhiko Tsunehara , Ryota Yamasaki , Masaaki Shida , Hideya Suzuki , Nobukazu Doi
发明人： Atsushi Ogino , Takashi Yano , Katsuhiko Tsunehara , Ryota Yamasaki , Masaaki Shida , Hideya Suzuki , Nobukazu Doi
IPC分类号： H04Q7/20
CPC分类号： H04W64/00 , G01S5/0054 , G01S5/0081 , G01S5/021 , G01S5/06
摘要： A method, system, and apparatus are provided for detecting a position of a terminal in a network accurately without a GPS receiver. In one example, a method for locating a position of a terminal includes calculating a position of a base station; detecting a clock time difference between the base station and another base station; measuring a reception timing of a signal received by the base station from the terminal; and locating the position of the terminal using at least the position of the base station, the clock time difference, and the reception timing.

5. 发明授权

US07167712B2 Method, system, and apparatus for detecting a position of a terminal in a network 有权
标题翻译：用于检测终端在网络中的位置的方法，系统和装置
公开(公告)号：US07167712B2
公开(公告)日：2007-01-23
申请号：US10463608
申请日：2003-06-18
申请人： Atsushi Ogino , Takashi Yano , Katsuhiko Tsunehara , Ryota Yamasaki , Masaaki Shida , Hideya Suzuki , Nobukazu Doi
发明人： Atsushi Ogino , Takashi Yano , Katsuhiko Tsunehara , Ryota Yamasaki , Masaaki Shida , Hideya Suzuki , Nobukazu Doi
IPC分类号： H04Q7/20
CPC分类号： H04W64/00 , G01S5/0054 , G01S5/0081 , G01S5/021 , G01S5/06
摘要： A method, system, and apparatus are provided for detecting a position of a terminal in a network accurately without a GPS receiver. In one example, a method for locating a position of a terminal includes calculating a position of a base station; detecting a clock time difference between the base station and another base station; measuring a reception timing of a signal received by the base station from the terminal; and locating the position of the terminal using at least the position of the base station, the clock time difference, and the reception timing.
摘要翻译：提供了一种方法，系统和装置，用于在没有GPS接收器的情况下准确地检测终端在网络中的位置。在一个示例中，用于定位终端的位置的方法包括计算基站的位置; 检测基站与另一基站之间的时钟时间差; 测量由基站从终端接收的信号的接收定时; 以及使用至少基站的位置，时钟时间差和接收定时来定位终端的位置。

6. 发明授权

US06963269B2 Contactless IC card 失效
标题翻译：非接触式IC卡
公开(公告)号：US06963269B2
公开(公告)日：2005-11-08
申请号：US10403280
申请日：2003-04-01
申请人： Takeshi Saitoh , Masaaki Shida , Tomoaki Ishifuji
发明人： Takeshi Saitoh , Masaaki Shida , Tomoaki Ishifuji
IPC分类号： G06K17/00 , G06K19/07 , H04B5/02 , H04Q5/22 , G05F3/02 , H03L7/06
CPC分类号： G06K19/0713 , G06K19/0723
摘要： A contactless IC card having an antenna, a transmit/receive circuit for recovering data (clock) and electric power from a carrier signal received by the antenna, a logic circuit operated with the electric power supplied thereto from the transmit/receive circuit, and a memory. The transmit/receive circuit has a rectifier circuit for outputting data (clock) and rectifier circuits for electric power in such a manner that the carrier signal is inputted to each of the rectifier circuit for outputting data (clock) and the rectifier circuit for electric power. With this configuration, high frequency matching can be optimized separately for the rectifier circuit for outputting data (clock) and the rectifier circuit for electric power. It is also possible to separately optimize adjustments to a voltage of recovered data (clock) and a recovered supply voltage.
摘要翻译：一种具有天线的非接触IC卡，用于从由天线接收的载波信号中恢复数据（时钟）和电力的发射/接收电路，由从发射/接收电路提供给其的电力操作的逻辑电路，以及记忆。发送/接收电路具有用于输出数据（时钟）和电力整流电路的整流电路，使得载波信号输入到用于输出数据（时钟）的整流电路和用于电力的整流电路。通过这种配置，可以分别为用于输出数据（时钟）的整流电路和用于电力的整流电路优化高频匹配。还可以单独优化对恢复的数据（时钟）的电压和恢复的电源电压的调整。

7. 发明授权

US6014406A Frequency-hopped wireless communication system and mobile wireless terminal 失效
标题翻译：无线跳频无线通信系统和移动无线终端
公开(公告)号：US6014406A
公开(公告)日：2000-01-11
申请号：US637175
申请日：1996-04-24
申请人： Masaaki Shida , Tomoaki Ishifuji , Masato Hirai , Hidehiko Jusa , Takaharu Aoyama , Kenichiro Orita
发明人： Masaaki Shida , Tomoaki Ishifuji , Masato Hirai , Hidehiko Jusa , Takaharu Aoyama , Kenichiro Orita
IPC分类号： H04B7/26 , H04L12/28 , H04B15/00 , H04K1/00 , H04L27/30
CPC分类号： H04W88/08 , H04B1/7156 , H04B7/2621 , H04W84/12 , H04W84/20 , H04W88/06
摘要： A frequency-hopped mobile communication system is disclosed, in which a mobile wireless station automatically becomes a base station in accordance with the surrounding conditions, thereby automatically reconfiguring a communication network. A control frame is generated by at least one master station, and frequencies are hopped by a plurality of slave stations in accordance with the control frame. Each slave station switches the master thereof to be tracked, in accordance with the receiving conditions of the control frame and the relation between the control frame received from the master station and the status of the slave station and decides in which mode, master station or slave station, the slave station is to operate. The cells are thus automatically reconfigured.
摘要翻译：公开了一种跳频移动通信系统，其中移动无线站根据周围环境自动成为基站，从而自动重新配置通信网络。控制帧由至少一个主站产生，并且根据控制帧由多个从站跳频。每个从站根据控制帧的接收条件和从主站接收到的控制帧与从站的状态之间的关系切换要跟踪的主站，并决定主站或从站的模式车站，从站正在运行。因此，这些单元被自动重新配置。

8. 发明授权

US09100082B2 Radio communication system and a repeater 有权
标题翻译：无线电通信系统和中继器
公开(公告)号：US09100082B2
公开(公告)日：2015-08-04
申请号：US13137332
申请日：2011-08-05
申请人： Masaaki Shida
发明人： Masaaki Shida
IPC分类号： H04B7/14 , H04B3/36 , H04B7/155 , H04B7/26 , H04W16/26
CPC分类号： H04B7/155 , H04B7/2606 , H04W16/26
摘要： A radio communication system for a communication between a base station and a mobile terminal. The radio communication system repeats a signal transmitted from the base station at repeaters that are multistage-connected by a leaky coaxial cable. Each repeater converts a frequency of an input signal into a different frequency and outputs the frequency-converted signal to the leaky coaxial cable connected to the repeater. The repeaters are provided between the leaky coaxial cables connected in series.
摘要翻译：一种用于基站和移动终端之间的通信的无线电通信系统。无线电通信系统重复从基站通过泄漏同轴电缆多级连接的转发器发送的信号。每个中继器将输入信号的频率转换成不同的频率，并将频率转换的信号输出到与中继器连接的泄漏同轴电缆。中继器设置在串联连接的泄漏同轴电缆之间。

9. 发明申请

US20120308238A1 DISTRIBUTED ANTENNA SYSTEM 有权
标题翻译：分布式天线系统
公开(公告)号：US20120308238A1
公开(公告)日：2012-12-06
申请号：US13183270
申请日：2011-07-14
申请人： Masaaki SHIDA
发明人： Masaaki SHIDA
IPC分类号： H04B10/10 , H04B7/00
CPC分类号： H04B1/40 , H04L5/001 , H04L5/0023
摘要： A distributed antenna system includes a first antenna disposed covering a predetermined communication range, the first antenna carrying out a communication at least at a low-frequency band, and a plurality of second antennas disposed covering the predetermined communication range, the plurality of second antennas carrying out a communication at a high-frequency band. The distributed antenna system is operable to carry out a communication between the first antenna and the second antennas, and a mobile terminal located within the predetermined communication range by means of carrier aggregation using the low-frequency band and the high-frequency band. The distributed antenna system further includes a BB module equipped in a base station for carrying out a communication within the predetermined communication range, the first antenna and the second antennas being each connected to the one BB module via an RF module.
摘要翻译：分布式天线系统包括覆盖预定通信范围的第一天线，至少在低频带进行通信的第一天线和覆盖预定通信范围的多个第二天线，所述多个第二天线承载在高频段进行通信。分布式天线系统可操作以通过使用低频带和高频带的载波聚合来执行第一天线和第二天线之间的通信，以及位于预定通信范围内的移动终端。分布式天线系统还包括配备在基站中的用于在预定通信范围内进行通信的BB模块，第一天线和第二天线各自经由RF模块连接到一个BB模块。

10. 发明申请

US20110033005A1 MIMO wireless data communication system, MIMO wireless data communication method and MIMO wireless data communication apparatus 失效
标题翻译： MIMO无线数据通信系统，MIMO无线数据通信方式和MIMO无线数据通信装置
公开(公告)号：US20110033005A1
公开(公告)日：2011-02-10
申请号：US12923852
申请日：2010-10-12
申请人： Shigenori Hayase , Masaaki Shida , Keisuke Yamamota
发明人： Shigenori Hayase , Masaaki Shida , Keisuke Yamamota
IPC分类号： H04B7/02 , H04L27/00
CPC分类号： H04B7/0854 , H04B7/0615
摘要： In a MIMO wireless communication system, the transformation process synthesizes the eigenmodes having a large singular value (i.e. a high effective SNR) and the eigenmodes having a small singular value (i.e. a low effective SNR). Thereby, the former eigenmodes are converted into modes having suppressed effective SNR which do not require a large number of levels of modulation, and the latter eigenmodes are converted into modes having increased effective SNR instead. In a MIMO wireless communication system for eigenmode transmission, a large communication capacity is realized without increasing the number of levels of modulation even in a communication environment capable of achieving a high SNR.
摘要翻译：在MIMO无线通信系统中，变换过程合成具有大奇异值（即高有效SNR）的本征模和具有小奇异值的本征模（即低有效SNR）。因此，前者本征模式被转换为具有抑制的有效SNR的模式，其不需要大量的调制电平，并且后者本征模式被转换成具有增加的有效SNR的模式。在用于本征模式传输的MIMO无线通信系统中，即使在能够实现高SNR的通信环境中也可实现大的通信容量而不增加调制电平的数量。

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