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1. 发明申请

US20070279281A1 SERVER DEVICE, MOBILE TERMINAL AND POSITIONING MODE SELECTING METHOD 有权
标题翻译：服务器设备，移动终端和定位模式选择方法
公开(公告)号：US20070279281A1
公开(公告)日：2007-12-06
申请号：US11756279
申请日：2007-05-31
申请人： Yasuhiro ODA , Jiyun Shen , Takefumi Yamada
发明人： Yasuhiro ODA , Jiyun Shen , Takefumi Yamada
IPC分类号： G01S5/14
CPC分类号： H04W64/00 , G01S5/0018 , G01S5/0045 , G01S19/46 , G01S19/48
摘要： A calculation server estimates a position of a mobile terminal that communicates with a base station incorporated with received global positioning system satellite signals. The calculation server includes a positioning information analyzer configured to select one of the positioning modes to be used out of a cell/sector positioning mode and a hybrid positioning mode on the basis of a distance between a cellular base station and the mobile terminal, and a position detector configured to calculate the position of the mobile terminal in the positioning mode selected by the positioning information analyzer.
摘要翻译：计算服务器估计与接收到的全球定位系统卫星信号的基站通信的移动终端的位置。计算服务器包括定位信息分析器，其被配置为基于蜂窝基站和移动终端之间的距离来选择要从小区/扇区定位模式和混合定位模式中使用的定位模式之一，以及位置检测器，被配置为计算由定位信息分析器选择的定位模式中的移动终端的位置。

2. 发明授权

US07663540B2 Server device, mobile terminal and positioning mode selecting method 有权
标题翻译：服务器设备，移动终端和定位模式选择方法
公开(公告)号：US07663540B2
公开(公告)日：2010-02-16
申请号：US11756279
申请日：2007-05-31
申请人： Yasuhiro Oda , Jiyun Shen , Takefumi Yamada
发明人： Yasuhiro Oda , Jiyun Shen , Takefumi Yamada
IPC分类号： G01S1/02 , G01S3/02
CPC分类号： H04W64/00 , G01S5/0018 , G01S5/0045 , G01S19/46 , G01S19/48
摘要： A calculation server estimates a position of a mobile terminal that communicates with a base station incorporated with received global positioning system satellite signals. The calculation server includes a positioning information analyzer configured to select one of the positioning modes to be used out of a cell/sector positioning mode and a hybrid positioning mode on the basis of a distance between a cellular base station and the mobile terminal, and a position detector configured to calculate the position of the mobile terminal in the positioning mode selected by the positioning information analyzer.
摘要翻译：计算服务器估计与接收到的全球定位系统卫星信号的基站通信的移动终端的位置。计算服务器包括定位信息分析器，其被配置为基于蜂窝基站和移动终端之间的距离来选择要从小区/扇区定位模式和混合定位模式中使用的定位模式之一，以及位置检测器，被配置为计算由定位信息分析器选择的定位模式中的移动终端的位置。

3. 发明授权

US07116735B2 Adaptive equalization apparatus and method 失效
标题翻译：自适应均衡装置及方法
公开(公告)号：US07116735B2
公开(公告)日：2006-10-03
申请号：US09984685
申请日：2001-10-31
申请人： Takefumi Yamada , Shigeru Tomisato , Tadashi Matsumoto
发明人： Takefumi Yamada , Shigeru Tomisato , Tadashi Matsumoto
IPC分类号： H04L7/00 , H04J3/06
CPC分类号： H04L25/03019 , H04B7/0842 , H04L7/042
摘要： A correlation between a received signal and a sync word signal is calculated. A window signal having a time span which is equal to an equalization range for an adaptive equalizer is defined. A power sum of the correlation output signal in each of window signals #1, #2, #3, . . . are calculated by sequentially shifting the window signal in the time domain, and a rising edge of the particular window signal whose power sum maximum defines a symbol sync timing.
摘要翻译：计算接收信号和同步字信号之间的相关性。定义了具有等于自适应均衡器的均衡范围的时间跨度的窗口信号。每个窗口信号＃1，＃2，＃3中的相关输出信号的功率和。。。是通过在时域中顺序地移动窗口信号以及其功率和最大值定义符号同步定时的特定窗口信号的上升沿来计算的。

4. 发明授权

US08979237B2 Recording head control method and dot impact printer 有权
标题翻译：记录头控制方法和点冲击打印机
公开(公告)号：US08979237B2
公开(公告)日：2015-03-17
申请号：US12963533
申请日：2010-12-08
申请人： Takefumi Yamada
发明人： Takefumi Yamada
IPC分类号： B41J29/38 , B41J2/30
CPC分类号： B41J2/30
摘要： A recording head control method prevents head coil burnout caused by heat output while suppressing a drop in printer throughput. A control method for a recording head 18 of a dot impact printer 100 that prints information on a recording medium S by driving the recording wires 9 of a recording head 18 that has a plurality of recording wires 9 while a carriage 19 that carries the recording head 18 traverses the recording medium S, each of the recording wires 9 being allocated to printing one dot line in the scanning direction of the carriage 19, the control method including steps of: during dot line printing, determining before printing if the number of previously defined specific dot patterns P1, P2 contained in the dot line to be printed is greater than or equal to a reference number N of 2 or more; and printing the dot line based on the result of the decision.
摘要翻译：记录头控制方法可以防止打印机吞吐量下降导致的热输出引起的线圈倦怠。点击式打印机100的记录头18的控制方法，其通过驱动具有多个记录线9的记录头18的记录线9，同时承载记录头的托架19将信息打印在记录介质S上图18所示的记录介质S横穿记录介质S，每个记录线9被分配用于在滑架19的扫描方向上打印一个点线，该控制方法包括以下步骤：在点阵打印期间，确定在打印之前是否先前定义的数量包含在要打印的点划线中的特定点图案P1，P2大于或等于参考数N 2或更大; 并根据决定结果打印点划线。

5. 发明授权

US07813440B2 Multiple-output multiple-input (MIMO) communication system, MIMO receiver and MIMO receiving method 有权
标题翻译：多输出多输入（MIMO）通信系统，MIMO接收机和MIMO接收方式
公开(公告)号：US07813440B2
公开(公告)日：2010-10-12
申请号：US10767282
申请日：2004-01-30
申请人： Takefumi Yamada , Hirohito Suda , Shigeru Tomisato
发明人： Takefumi Yamada , Hirohito Suda , Shigeru Tomisato
IPC分类号： H04B7/02 , H04L1/02
CPC分类号： H04B7/0417 , H04B7/0626 , H04B7/0634 , H04B7/0848 , H04L1/0026 , H04L1/06
摘要： This invention provides an MIMO communication system and MIMO communication method. An MIMO receiver estimates state of each communication channel from the received signals received by #1 to #L antennas, generates feedback information according to the information of channel state, sends the feedback information to a transmitter through a feedback path, processes the feedback information in order to compensate feedback-delay of the feedback path, generate K*L proper reception weights by using the information of channel state and processed feedback information, multiplies the received #1 to #L substreams of respective #1 to #K signal streams by the proper #1 to #L reception weights, respectively, composes the #1 to #L weighted substreams to obtain respective composed #1 to #K signal streams and demodulate the composed #1 to #K signal streams, respectively, and combines the demodulated K signal streams to reproduce an original transmission signal.
摘要翻译：本发明提供一种MIMO通信系统和MIMO通信方法。 MIMO接收机根据＃1至#L天线接收的接收信号估计每个通信信道的状态，根据信道状态的信息生成反馈信息，通过反馈路径将反馈信息发送到发射机，处理反馈信息为了补偿反馈路径的反馈延迟，通过使用信道状态和处理的反馈信息的信息生成K * L适当的接收权重，将相应＃1至#K信号流的接收＃1至#L子流乘以分别对＃1〜#L的接收权重构成＃1〜#L的加权子流，以分别获得各组合的＃1〜#K信号流，并分别对组合＃1〜#K信号流进行解调，并将解调后的K 信号流以再现原始传输信号。

6. 发明申请

US20060031583A1 Communication system, communication method, transmission device, reception device, and control program 失效
标题翻译：通信系统，通信方式，传输设备，接收设备和控制程序
公开(公告)号：US20060031583A1
公开(公告)日：2006-02-09
申请号：US10535859
申请日：2003-11-20
申请人： Hiromasa Fujii , Shigeru Tomisato , Hirohito Suda , Tetsuhi Abe , Takefumi Yamada
发明人： Hiromasa Fujii , Shigeru Tomisato , Hirohito Suda , Tetsuhi Abe , Takefumi Yamada
IPC分类号： G06F15/16
CPC分类号： H04L27/2602 , H04B1/7103 , H04L27/2607 , H04L27/2608 , H04L27/261 , H04L27/2613 , H04L27/2626 , H04L27/2656 , H04L27/2662 , H04L27/2688
摘要： An object of the present invention is to provide a communications system etc., which can reduce the influence of interference from other systems which results from a difference in symbol length, in an area where a plurality of systems using different transmission methods are mixed. The present invention relates to a communications system in which a plurality of systems share the same frequency bandwidth so as to transmit information symbols. One of the plurality of systems 1 includes an identifying unit 109 configured to identify the symbol length of an information symbol transmitted in a different system 2; and an adjusting unit 102, 107 configured to adjust the symbol length of an information symbol to be transmitted, in accordance with an identified symbol length.
摘要翻译：本发明的目的是提供一种通信系统等，其可以在混合使用不同传输方式的多个系统的区域中减少由于符号长度不同而引起的其他系统的干扰的影响。本发明涉及一种通信系统，其中多个系统共享相同的频率带宽以便发送信息符号。多个系统1中的一个包括识别单元109，其被配置为识别在不同系统2中发送的信息符号的符号长度; 以及调整单元102,107，其被配置为根据所识别的符号长度来调整要发送的信息符号的符号长度。

7. 发明申请

US20140148121A1 BASE STATION IN MOBILE COMMUNICATION SYSTEM AND WAVE STOPPING METHOD 有权
标题翻译：移动通信系统中的基站和波形停止方法
公开(公告)号：US20140148121A1
公开(公告)日：2014-05-29
申请号：US14119054
申请日：2012-05-30
申请人： Hiroyuki Hosono , Takefumi Yamada , Hidehiko Oyane , Tsutomu Sugaya , Yasuhiro Kawabe , Masayuki Matsubara
发明人： Hiroyuki Hosono , Takefumi Yamada , Hidehiko Oyane , Tsutomu Sugaya , Yasuhiro Kawabe , Masayuki Matsubara
IPC分类号： H04W8/22 , H04W4/22
CPC分类号： H04W8/22 , H04W4/02 , H04W4/90 , H04W8/24 , H04W8/245 , H04W24/02 , H04W64/003 , H04W84/045 , H04W88/08
摘要： A base station in a mobile communication system transmits and receives wireless signals with a user apparatus in a cell; in the case where the base station is connected to a communication network through a router, obtains an address of the router; periodically receives time information from a time information server through the communication network; stores in a memory unit the router's address and a current time indicated by the time information; and (1) in the case where a current-time-storing-is-stopped period is equal to or greater than a threshold value, or (2) in the case where the current-time-storing-is-stopped period is less than the threshold value and is equal to or greater than another threshold value, and an address just received from the router is different from the address stored in the memory unit, transmits a control signal for stopping the transmission of the wireless signal.
摘要翻译：移动通信系统中的基站利用小区中的用户装置发送和接收无线信号; 在基站通过路由器连接到通信网络的情况下，获取路由器的地址; 通过通信网络定期从时间信息服务器接收时间信息; 在存储单元中存储路由器的地址和由时间信息指示的当前时间; 和（1）在当前时间存储停止期间等于或大于阈值的情况下，或（2）在当前时间存储停止期间少的情况下并且等于或大于另一个阈值，并且刚刚从路由器接收的地址与存储在存储单元中的地址不同，发送用于停止无线信号的发送的控制信号。

8. 发明授权

US08019013B2 Multiple-output multiple-input (MIMO) communication system, MIMO receiver and MIMO receiving method 有权
标题翻译：多输出多输入（MIMO）通信系统，MIMO接收机和MIMO接收方式
公开(公告)号：US08019013B2
公开(公告)日：2011-09-13
申请号：US12839990
申请日：2010-07-20
申请人： Takefumi Yamada , Hirohito Suda , Shigeru Tomisato
发明人： Takefumi Yamada , Hirohito Suda , Shigeru Tomisato
IPC分类号： H04B7/02 , H04L1/02
CPC分类号： H04B7/0417 , H04B7/0626 , H04B7/0634 , H04B7/0848 , H04L1/0026 , H04L1/06
摘要： A receiver that receives a signal from a transmitter, including: a plurality of antennas; a channel estimation unit; a channel accumulation unit; a transmission weight generator; a feedback information transmission unit; and a reception weight generator. The plurality of antennas receive a second signal from the transmitter, the second signal being transmitted by using first feedback information. The channel estimation unit estimates a communication channel state on the basis of the second signal, and then outputs second channel estimation information. The reception weight generator generates reception weight information to be multiplied by the second signal, on the basis of first channel estimation information accumulated in the channel accumulation unit and a first transmission weight.
摘要翻译：一种从发射机接收信号的接收机，包括：多个天线; 信道估计单元; 渠道积累单位; 传动重量发生器; 反馈信息传输单元; 和接收重量发生器。多个天线从发射机接收第二信号，通过使用第一反馈信息发送第二信号。信道估计单元基于第二信号估计通信信道状态，然后输出第二信道估计信息。接收权重发生器基于在信道累积单元中累积的第一信道估计信息和第一传输权重生成要乘以第二信号的接收权重信息。

9. 发明授权

US07633924B2 Communications system, communications method, transmitting apparatus, receiving apparatus and control program to variably adjust a symbol length 失效
标题翻译：通信系统，通信方法，发送装置，接收装置和控制程序，以可变地调整符号长度
公开(公告)号：US07633924B2
公开(公告)日：2009-12-15
申请号：US10535859
申请日：2003-11-20
申请人： Hiromasa Fujii , Shigeru Tomisato , Hirohito Suda , Tetsushi Abe , Takefumi Yamada
发明人： Hiromasa Fujii , Shigeru Tomisato , Hirohito Suda , Tetsushi Abe , Takefumi Yamada
IPC分类号： H04J1/00
CPC分类号： H04L27/2602 , H04B1/7103 , H04L27/2607 , H04L27/2608 , H04L27/261 , H04L27/2613 , H04L27/2626 , H04L27/2656 , H04L27/2662 , H04L27/2688
摘要： An object of the present invention is to provide a communications system etc., which can reduce the influence of interference from other systems which results from a difference in symbol length, in an area where a plurality of systems using different transmission methods are mixed. The present invention relates to a communications system in which a plurality of systems share the same frequency bandwidth so as to transmit information symbols. One of the plurality of systems 1 includes an identifying unit 109 configured to identify the symbol length of an information symbol transmitted in a different system 2; and an adjusting unit 102, 107 configured to adjust the symbol length of an information symbol to be transmitted, in accordance with an identified symbol length.
摘要翻译：本发明的目的是提供一种通信系统等，其可以在混合使用不同传输方式的多个系统的区域中减少由于符号长度的差异而导致的来自其他系统的干扰的影响。本发明涉及一种通信系统，其中多个系统共享相同的频率带宽以便发送信息符号。多个系统1中的一个包括识别单元109，其被配置为识别在不同系统2中发送的信息符号的符号长度; 以及调整单元102,107，其被配置为根据所识别的符号长度来调整要发送的信息符号的符号长度。

10. 发明申请

US20050094552A1 OFDM signal frame generator, transmitter, signal transmission system and OFDM signal frame generating method 有权
标题翻译： OFDM信号帧发生器，发射机，信号传输系统和OFDM信号帧生成方法
公开(公告)号：US20050094552A1
公开(公告)日：2005-05-05
申请号：US10865817
申请日：2004-06-14
申请人： Tetsushi Abe , Hirohito Suda , Shigeru Tomisato , Hiromasa Fujii , Takefumi Yamada
发明人： Tetsushi Abe , Hirohito Suda , Shigeru Tomisato , Hiromasa Fujii , Takefumi Yamada
IPC分类号： H04L27/26 , H04B3/10 , H04J11/00
CPC分类号： H04L5/0048 , H04L5/0007 , H04L5/0046 , H04L5/006
摘要： An object of the present invention is, in a communication path of which received signal quality is extremely poor, to prevent such a state of the communication failure. To a frame generator 13 in a transmitter 10, which transmits OFDM signal, a pilot & data arrangement format determiner 20, which determines pilot & data arrangement format of an OFDM signal based on the value of received signal quality at a receiver 30, a pilot symbol number determiner 19, which determines the number of pilot symbols based on the value of received signal quality, and a power amplification rate determiner 18, which determines power amplification rate based on the value of received signal quality, are newly provided. Thereby, it is possible to change the pilot & data arrangement format, the number of pilot symbols and the power amplification rate depending on the value of received signal quality to generate transmission signal frame of the OFDM signal. Owing to this, even in a channel of which received signal quality is poor, it is possible to satisfactorily reduce the transmission rate using adaptive modulation technique and maintain the channel estimation accuracy to a satisfactory level, and thus it is possible to prevent such a state of the communication failure.
摘要翻译：本发明的目的是在接收信号质量极差的通信路径中，防止这种通信失败的状态。导频和数据排列格式确定器20向发射机10发送OFDM信号的帧发生器13，导频和数据排列格式确定器20基于接收机30处的接收信号质量的值确定OFDM信号的导频和数据排列格式，符号数确定器19，其基于接收信号质量的值来确定导频符号的数量，并且基于接收信号质量的值确定功率放大率的功率放大率确定器18。因此，可以根据接收信号质量的值来改变导频和数据排列格式，导频符号数和功率放大率，以产生OFDM信号的发送信号帧。由此，即使在接收信号质量差的信道中，也可以使用自适应调制技术令人满意地降低传输速率，并且将信道估计精度保持在令人满意的水平，因此可以防止这种状态的通信故障。

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