专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07619963B2 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：US07619963B2
公开(公告)日：2009-11-17
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： H04J11/00 , H04J1/00 , H04K1/10 , H04L27/28
CPC分类号： H04L5/0048 , H04L5/0007 , H04L5/0046 , H04L5/006
摘要： An OFDM signal frame generator includes a rate determiner configured to determine rate information to generate a signal frame to be transmitted as an OFDM signal based on a value of a received signal quality. The signal frame generator further includes a pilot and data arrangement format determiner configured to determine a pilot and data arrangement format of the signal that is to be transmitted; power amplification rate determiner configured to determine a power amplification rate for the signal frame; data symbol generator configured to generate data symbol series to be transmitted based on the rate information and based on the power amplification rate; and transmission signal frame generator configured to generate the signal frame based on the generated data symbol series, on the number of pilot symbols, and based on the pilot & data arrangement format.
摘要翻译： OFDM信号帧发生器包括速率确定器，其被配置为基于接收信号质量的值来确定速率信息以生成要作为OFDM信号发送的信号帧。所述信号帧发生器还包括导频和数据排列格式确定器，被配置为确定要发送的信号的导频和数据排列格式; 功率放大率确定器，被配置为确定所述信号帧的功率放大率; 数据符号发生器，其被配置为基于所述速率信息并基于所述功率放大率生成要发送的数据符号序列; 以及发送信号帧生成器，被配置为基于所生成的数据符号序列，关于导频符号的数量，并且基于导频和数据排列格式生成信号帧。

2. 发明授权

US07590200B2 Receiver, a transmitter, a radio communication system and a channel estimation method 有权
标题翻译：接收机，发射机，无线电通信系统和信道估计方法
公开(公告)号：US07590200B2
公开(公告)日：2009-09-15
申请号：US11106433
申请日：2005-04-15
申请人： Hiromasa Fujii , Jiyun Shen , Takahiro Asai , Hirohito Suda
发明人： Hiromasa Fujii , Jiyun Shen , Takahiro Asai , Hirohito Suda
IPC分类号： H04B7/10
CPC分类号： H04L25/0236 , H04L1/0006 , H04L25/0204
摘要： A radio communication system including a transmitter and a receiver (100) for transmitting MIMO channel signals is provided. The transmitter comprises a pilot signal insertion controller (93) for inserting a pilot signal for channel estimation into at least a leading frame; and an information symbol controller for controlling the number of information symbols to be contained in a frame, based on the existence of the pilot signal. The receiver comprises a received signal replica generator (112) for generating received signal replicas based on previously obtained provisional channel estimation values and transmission signal estimation values; a canceller (111) for removing, from a received signal, received signal replicas of at least a part of streams that are not channel estimation target streams; and a channel estimation value generator (113) for generating channel estimation values by a filter using outputs from the removing unit and the transmission signal estimation values.
摘要翻译：提供了一种包括用于发送MIMO信道信号的发射机和接收机（100）的无线电通信系统。所述发射机包括导频信号插入控制器（93），用于将用于信道估计的导频信号插入至少一个引导帧; 以及信息符号控制器，用于基于导频信号的存在来控制要包含在帧中的信息符号的数量。接收机包括接收信号副本发生器（112），用于基于先前获得的临时信道估计值和传输信号估计值来产生接收信号副本; 用于从接收到的信号中去除不是信道估计目标流的流的至少一部分的接收信号副本的消除器（111）以及信道估计值发生器（113），用于通过使用来自去除单元的输出和发送信号估计值的滤波器来生成信道估计值。

3. 发明授权

US07006041B2 Radio receiver, radio transmitter and impedance control method 失效
标题翻译：无线电接收机，无线电发射机和阻抗控制方法
公开(公告)号：US07006041B2
公开(公告)日：2006-02-28
申请号：US10892147
申请日：2004-07-16
申请人： Hiromasa Fujii , Shigeru Tomisato , Hirohito Suda
发明人： Hiromasa Fujii , Shigeru Tomisato , Hirohito Suda
IPC分类号： H01Q3/24
CPC分类号： H01Q21/29 , H01Q1/246 , H01Q3/2635 , H01Q3/44 , H04L1/0025 , H04L25/0202
摘要： A radio receiver includes a plurality of antenna elements for receiving a radio signal from a radio transmitter; a setting part changing an impedance of at least one of the plurality of antenna elements according to an instruction signal; a measuring part measuring a change in throughput in a received signal caused due to the change in the impedance; and an instruction part providing the instruction signal which is changed in response to the measurement result.
摘要翻译：无线电接收机包括用于从无线电发射机接收无线电信号的多个天线元件; 设置部分，根据指令信号改变所述多个天线元件中的至少一个的阻抗; 测量由于阻抗变化引起的接收信号中的吞吐量变化的测量部分; 以及提供响应于测量结果而改变的指令信号的指令部分。

4. 发明申请

US20050265226A1 Transmission apparatus and receiving apparatus 有权
标题翻译：传输装置和接收装置
公开(公告)号：US20050265226A1
公开(公告)日：2005-12-01
申请号：US11135413
申请日：2005-05-24
申请人： Jiyun Shen , Hiromasa Fujii , Takahiro Asai , Hirohito Suda
发明人： Jiyun Shen , Hiromasa Fujii , Takahiro Asai , Hirohito Suda
IPC分类号： H04J11/00 , H04L25/02 , H04L27/26
CPC分类号： H04L27/2614 , H04L25/0226 , H04L25/0232 , H04L27/2613 , H04L27/2621 , H04L27/2624
摘要： A transmission apparatus used in a radio communication system adopting the OFDM scheme is disclosed. The transmission apparatus includes: a dividing inverse Fourier transform part including plural transform parts, wherein the dividing inverse Fourier transform part divides a signal to be transmitted into plural signals, and each of the plural transform parts performs inverse Fourier transform on one of the plural signals; a peak control part for outputting a peak control signal based on peaks that are detected from output signals of the dividing inverse Fourier transform part; and a peak reducing process part for adjusting a weight or an arranging order of an output signal of the dividing inverse Fourier transform part according to the peak control signal to output an adjusted signal, and synthesizing the adjusted signal with other signal so as to output a synthesized signal.
摘要翻译：公开了在采用OFDM方案的无线通信系统中使用的发送装置。发送装置包括：分割逆傅里叶变换部分，包括多个变换部分，其中分割付里叶逆变换部分将要发送的信号划分为多个信号，并且多个变换部分中的每一个对多个信号中的一个信号进行傅立叶逆变换 ; 峰值控制部分，用于基于从分割付里叶逆变换部分的输出信号检测的峰值输出峰值控制信号; 以及峰值降低处理部分，用于根据峰值控制信号调整除法逆傅立叶逆变换部分的输出信号的权重或排列顺序，以输出调整后的信号，并将调整后的信号与其他信号合成，以输出合成信号。

5. 发明授权

US07826541B2 Wireless relay system, wireless relay apparatus, and wireless relay method 有权
标题翻译：无线中继系统，无线中继装置和无线中继方式
公开(公告)号：US07826541B2
公开(公告)日：2010-11-02
申请号：US11061539
申请日：2005-02-18
申请人： Hiromasa Fujii , Hirohito Suda , Tetsu Tanaka
发明人： Hiromasa Fujii , Hirohito Suda , Tetsu Tanaka
IPC分类号： H04K1/10 , H03K11/00 , H04L5/14
CPC分类号： H04B7/15585 , H04L5/0023 , H04L5/0032 , H04L5/0048 , H04L25/0226 , H04L27/2602
摘要： A wireless relay system for relaying a radio signal transmitted from a first wireless station to a second wireless station via a wireless relay apparatus is disclosed. The wireless relay system includes a relay control part for receiving transmission symbols transmitted from the first wireless station and refraining from relaying a portion of the symbols, a pilot signal transmission part for transmitting a pilot signal that is inserted into a section of the portion of the transmission symbols, a coupling loop interference wave estimation part for receiving the pilot signal and estimating a coupling loop interference wave based on the pilot signal, and a coupling loop interference wave cancellation part for subtracting the estimated coupling loop interference wave from a reception signal.
摘要翻译：公开了一种用于经由无线中继装置中继从第一无线站发送到第二无线站的无线电信号的无线中继系统。无线中继系统包括：中继控制部分，用于接收从第一无线站发送的传输符号，并避免中继一部分符号;导频信号发送部分，用于发送导频信号，该导频信号插入到该部分的一部分; 传输符号，用于接收导频信号并基于导频信号估计耦合环路干扰波的耦合环路干扰波估计部分，以及用于从接收信号中减去所估计的耦合环路干扰波的耦合环路干扰波消除部分。

6. 发明申请

US20100111207A1 TRANSMITTER AND METHOD FOR CONFIGURING TRANSMISSION FRAME 有权
标题翻译：用于配置传输帧的发射机和方法
公开(公告)号：US20100111207A1
公开(公告)日：2010-05-06
申请号：US12443547
申请日：2007-09-28
申请人： Hirohito Suda , Hiromasa Fujii
发明人： Hirohito Suda , Hiromasa Fujii
IPC分类号： H04L7/04 , H04L27/28
CPC分类号： H04L5/0007 , H04L5/0039 , H04L27/2607
摘要： A transmitter which transmits information in transmission frame to a receiver, the transmission frame including multiple transmission symbols and guard intervals obtained by replicating a fixed time period of a transmission symbol, generates a transmission frame by making phases of one transmission symbol out of two transmission symbols and a guard interval thereof continuous with phases of the other transmission symbol and a guard interval thereof, when the two continuous transmission symbols are the same.
摘要翻译：将发送帧中的信息发送到接收机的发送机，包含多个发送符号的发送帧和通过复制发送符号的固定时间段而获得的保护间隔，通过从两个发送符号中进行一个发送符号的相位来生成发送帧并且当两个连续发送符号相同时，其与其他发送符号的相位和其保护间隔连续的保护间隔。

7. 发明申请

US20050276360A1 Receiver, a transmitter, a radio communication system and a channel estimation method 有权
标题翻译：接收机，发射机，无线电通信系统和信道估计方法
公开(公告)号：US20050276360A1
公开(公告)日：2005-12-15
申请号：US11106433
申请日：2005-04-15
申请人： Hiromasa Fujii , Jiyun Shen , Takahiro Asai , Hirohito Suda
发明人： Hiromasa Fujii , Jiyun Shen , Takahiro Asai , Hirohito Suda
IPC分类号： H04J99/00 , H04B7/005 , H04B7/04 , H04L25/02 , H04B7/10 , H04B1/707
CPC分类号： H04L25/0236 , H04L1/0006 , H04L25/0204
摘要： A radio communication system including a transmitter and a receiver (100) for transmitting MIMO channel signals is provided. The transmitter comprises a pilot signal insertion controller (93) for inserting a pilot signal for channel estimation into at least a leading frame; and an information symbol controller for controlling the number of information symbols to be contained in a frame, based on the existence of the pilot signal. The receiver comprises a received signal replica generator (112) for generating received signal replicas based on previously obtained provisional channel estimation values and transmission signal estimation values; a canceller (111) for removing, from a received signal, received signal replicas of at least a part of streams that are not channel estimation target streams; and a channel estimation value generator (113) for generating channel estimation values by a filter using outputs from the removing unit and the transmission signal estimation values.
摘要翻译：提供了一种包括用于发送MIMO信道信号的发射机和接收机（100）的无线电通信系统。所述发射机包括导频信号插入控制器（93），用于将用于信道估计的导频信号插入至少一个引导帧; 以及信息符号控制器，用于基于导频信号的存在来控制要包含在帧中的信息符号的数量。接收机包括接收信号副本发生器（112），用于基于先前获得的临时信道估计值和传输信号估计值来产生接收信号副本; 用于从接收到的信号中去除不是信道估计目标流的流的至少一部分的接收信号副本的消除器（111）以及信道估计值发生器（113），用于通过使用来自去除单元的输出和发送信号估计值的滤波器来生成信道估计值。

8. 发明申请

US20050054318A1 Radio receiver, radio transmitter and impedance control method 失效
标题翻译：无线电接收机，无线电发射机和阻抗控制方法
公开(公告)号：US20050054318A1
公开(公告)日：2005-03-10
申请号：US10892147
申请日：2004-07-16
申请人： Hiromasa Fujii , Shigeru Tomisato , Hirohito Suda
发明人： Hiromasa Fujii , Shigeru Tomisato , Hirohito Suda
IPC分类号： H01Q1/24 , H01Q3/26 , H01Q3/44 , H01Q21/29 , H04B7/06 , H04B7/08 , H04L1/00 , H04L25/02 , H04B17/00 , G01S3/16 , G01S3/28 , H04B1/06 , H04B7/00 , H04M1/00
CPC分类号： H01Q21/29 , H01Q1/246 , H01Q3/2635 , H01Q3/44 , H04L1/0025 , H04L25/0202
摘要： A radio receiver includes a plurality of antenna elements for receiving a radio signal from a radio transmitter; a setting part changing an impedance of at least one of the plurality of antenna elements according to an instruction signal; a measuring part measuring a change in throughput in a received signal caused due to the change in the impedance; and an instruction part providing the instruction signal which is changed in response to the measurement result.
摘要翻译：无线电接收机包括用于从无线电发射机接收无线电信号的多个天线元件; 设置部分，根据指令信号改变所述多个天线元件中的至少一个的阻抗; 测量由于阻抗变化引起的接收信号中的吞吐量变化的测量部分; 以及提供响应于测量结果而改变的指令信号的指令部分。

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. 发明授权

US07463673B2 Radio relay system, radio relay apparatus, and radio relay method 有权
标题翻译：无线中继系统，无线中继装置和无线中继方式
公开(公告)号：US07463673B2
公开(公告)日：2008-12-09
申请号：US11057200
申请日：2005-02-15
申请人： Hiromasa Fujii , Hirohito Suda , Tetsu Tanaka
发明人： Hiromasa Fujii , Hirohito Suda , Tetsu Tanaka
IPC分类号： H04B7/14
CPC分类号： H04B7/2606 , H04B7/15535 , H04H20/02 , H04L5/0023 , H04L5/0032 , H04L5/0048 , H04L25/0224
摘要： A radio relay system is disclosed that is capable of preventing communication degradation in a case where radio signals are relayed using the same frequency band in a mobile communication environment. The radio relay system includes a first radio station, a second radio station, and a radio relay apparatus for relaying a radio signal that is exchanged between the first radio station and the second radio station. The radio relay apparatus includes a phase correction determining unit that determines a phase correction amount of the relayed signal based on channel information pertaining to channels established between the first radio station, the second radio station, and the radio relay apparatus, and a phase correction unit that corrects the relayed signal based on the phase correction amount determined by the phase correction determining unit.
摘要翻译：公开了一种无线电中继系统，其能够在移动通信环境中使用相同频带中继无线电信号的情况下防止通信退化。无线电中继系统包括第一无线电台，第二无线电台和用于中继在第一无线电台和第二无线电台之间交换的无线电信号的无线电中继装置。无线中继装置包括：相位校正决定部，其基于与在第一无线站，第二无线站，无线中继装置之间建立的信道有关的信道信息，确定中继信号的相位修正量;相位校正部，基于由相位校正确定单元确定的相位校正量校正中继信号。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式