公开(公告)号：US20100266053A1

公开(公告)日：2010-10-21

申请号：US12742061

申请日：2008-11-27

申请人： Takenori Sakamoto ,  Taisuke Matsumoto ,  Satoshi Hasako ,  Suguru Fujita ,  Masashi Kobayashi ,  Zhan Yu

发明人： Takenori Sakamoto ,  Taisuke Matsumoto ,  Satoshi Hasako ,  Suguru Fujita ,  Masashi Kobayashi ,  Zhan Yu

IPC分类号： H04L27/00 ,  H04L27/20 ,  H04L27/06

CPC分类号： H04L25/0224 ,  H04L27/0008 ,  H04L27/18 ,  H04L27/2071

摘要： A wireless communication method, a radio transmitter apparatus and a radio receiver apparatus wherein a signal sequence, which is used in a reception process using a first modulation scheme and can be generated from a signal sequence prepared for a reception process and used in a second modulation scheme, is employed, thereby achieving a performance to a similar extent to the reception process performance using the second modulation scheme. A radio transmitter apparatus (20) uses a first modulation scheme (e.g., OOK modulation scheme) to sequentially transmit, as a first sequence, both a sub-sequence a1(n), which is identical with a second sequence a(n) designed for use in a second modulation scheme (e.g., BPSK modulation scheme), and a sub-sequence a2(n), the bits of which are reverse to those of the second sequence a(n), in a time division manner. A radio receiver apparatus (30) detects the sub-sequence a1(n) and sub-sequence a2(n) in a received signal to send the detection result to the following stage for a signal processing.

摘要翻译： 一种无线通信方法，无线发送装置以及无线接收装置，其特征在于，在使用第一调制方式的接收处理中使用的信号序列，可以从为接收处理而准备的信号序列生成并在第二调制中使用的信号序列 方案，从而实现与使用第二调制方案的接收处理性能相似程度的性能。 无线电发射机装置（20）使用第一调制方案（例如，OOK调制方案）作为第一序列顺序地发送与被设计的第二序列a（n）相同的子序列a1（n） 用于第二调制方案（例如，BPSK调制方案）以及子序列a2（n），它们的比特以时分方式与第二序列a（n）的比特相反。 无线接收装置（30）检测接收信号中的子序列a1（n）和子序列a2（n），将检测结果发送到后续的信号处理阶段。

公开(公告)号：US08509360B2

公开(公告)日：2013-08-13

申请号：US12281883

申请日：2007-03-01

申请人： Suguru Fujita ,  Masahiro Mimura ,  Kazuaki Takahashi ,  Takenori Sakamoto

发明人： Suguru Fujita ,  Masahiro Mimura ,  Kazuaki Takahashi ,  Takenori Sakamoto

IPC分类号： H04L7/00

CPC分类号： H04L27/2278 ,  H04B1/7183 ,  H04L25/03006 ,  H04L2027/0038

摘要： A pulse radio receiving apparatus includes a reference waveform generation section that generates a reference waveform signal, a delay section that generates a plurality of delayed waveform signals by delaying the reference waveform signal by different amounts of delay, a correlation calculation section that generates a plurality of correlation value signals showing correlation values between a received signal, and the reference waveform signal and the delayed waveform signals, a determination section that compares predetermined combinations of the plurality of correlation value signals and generates a difference detection signal showing a direction and degree of a phase shift between the received signal and the reference waveform signal according to comparison results, and a synchronization control section that controls a phase of the reference waveform signal generated by the reference waveform signal generation section based on the difference detection signal.

摘要翻译： 脉冲无线电接收装置包括产生参考波形信号的参考波形生成部分，延迟部分，通过延迟不同延迟量的参考波形信号产生多个延迟波形信号;相关计算部分，生成多个延迟波形信号; 表示接收信号和参考波形信号与延迟波形信号之间的相关值的相关值信号，比较多个相关值信号的预定组合的判定部，生成表示相位方向和程度的差分检测信​​号 根据比较结果，在接收信号和参考波形信号之间进行移位，以及同步控制部，其基于差分检测信​​号来控制由基准波形信号生成部生成的基准波形信号的相位。

公开(公告)号：US20090074117A1

公开(公告)日：2009-03-19

申请号：US12281883

申请日：2007-03-01

申请人： Suguru Fujita ,  Masahiro Mimura ,  Kazuaki Takahashi ,  Takenori Sakamoto

发明人： Suguru Fujita ,  Masahiro Mimura ,  Kazuaki Takahashi ,  Takenori Sakamoto

IPC分类号： H04L27/06

CPC分类号： H04L27/2278 ,  H04B1/7183 ,  H04L25/03006 ,  H04L2027/0038

摘要： A pulse radio receiver not needing re-setting of the threshold for reception synchronization, judging the direction and amount of adjustment of the synchronization even if the signal strength varies, and having a shortened pull-in time of the synchronization position. The receiver comprises a detect (104) for creating a detection signal (105), a synchronizing waveform generating section (160) for generating a reference waveform signal (111), a delay section (161) for generating delayed waveform signals by delaying the reference waveform signal (111) with different delay times, a correlation computing section (162) for parallel generating correlation value signals representing the correlation values between the detection signal (105), and the reference waveform signal (111) and its delayed reference waveform signals, a judging section (163) for generating a difference detection signal (141) representing the direction and amount of the phase error from the magnitude relation corresponding to the combination of the correlation values represented by the correlation value signals, and a synchronization control section (142) for generating a control signal (143) for controlling the phase of the reference waveform signal (111) according to the difference detection signal (141) and outputting the control signal (143) into the synchronizing waveform generating section (160).

摘要翻译： 脉冲无线电接收机不需要重新设置接收同步的阈值，即使信号强度变化，判断同步调整的方向和量，并且具有缩短的同步位置的吸入时间。 接收机包括用于产生检测信号（105）的检测（104），用于产生参考波形信号（111）的同步波形发生部分（160），用于通过延迟基准来产生延迟波形信号的延迟部分（161） 具有不同延迟时间的波形信号（111），用于并行产生表示检测信号（105）与参考波形信号（111）之间的相关值的相关值信号及其延迟的参考波形信号的相关运算部分（162） 用于根据由相关值信号表示的相关值的组合对应的幅度关系产生表示相位误差的方向和量的差异检测信号（141）的判断部分（163），以及同步控制部分 ），用于产生用于根据差值d控制参考波形信号（111）的相位的控制信号（143） 检测信号（141），并将控制信号（143）输出到同步波形生成部（160）中。

公开(公告)号：US08358727B2

公开(公告)日：2013-01-22

申请号：US12438094

申请日：2007-09-26

申请人： Suguru Fujita ,  Hideki Aoyagi ,  Takenori Sakamoto

发明人： Suguru Fujita ,  Hideki Aoyagi ,  Takenori Sakamoto

IPC分类号： H04L7/00

CPC分类号： H04L7/0054 ,  H03L7/081 ,  H03L7/0814 ,  H03L7/087 ,  H03L7/091 ,  H04L7/0037 ,  H04L25/068

摘要： The present invention has an object to provide a wireless apparatus which is capable of correctly sampling a waveform of a pulse even when a shape of the pulse is varied.A synchronizing apparatus for causing an input signal to be synchronized with a clock signal is equipped with sampling unit 102, 103, and delay control unit 112. The sampling unit 102 and 103 sample the input signal at first sampling timing and second sampling timing, which are separated from each other in a predetermined time interval. The delay control unit 112 shifts both the first and second sampling timing during synchronous pull-in operation, and also, narrows the interval between said first and second sampling timing during synchronous follow-up operation. A synchronous status judging unit 105 judges whether or not the input signal is synchronized with the clock signal based upon a phase error amount outputted from a phase error calculating unit 104, and outputs the synchronous status to a delay amount control unit 106. The delay amount control unit 106 controls to increase/decrease delay amounts which have been presently set in variable delay devices 107 and 108 based upon the phase error amount outputted from the phase error calculating unit 104 and the synchronous status outputted from the synchronous status judging unit 105.

摘要翻译： 本发明的目的是提供一种即使当脉冲的形状改变时也能够正确地采样脉冲波形的无线装置。 用于使输入信号与时钟信号同步的同步装置配备有采样单元102,103和延迟控制单元112.采样单元102和103在第一采样定时和第二采样定时对输入信号进行采样，其中 在预定的时间间隔彼此分离。 延迟控制单元112在同步拉入操作期间移动第一和第二采样定时两者，并且在同步跟随操作期间也缩小所述第一和第二采样定时之间的间隔。 同步状态判断单元105基于从相位误差计算单元104输出的相位误差量判断输入信号是否与时钟信号同步，并将同步状态输出到延迟量控制单元106.延迟量 控制单元106基于从相位误差计算单元104输出的相位误差量和从同步状态判断单元105输出的同步状态来控制当前在可变延迟装置107和108中设置的延迟量的增减。

公开(公告)号：US20100239058A1

公开(公告)日：2010-09-23

申请号：US12438094

申请日：2007-09-26

申请人： Suguru Fujita ,  Hideki Aoyagi ,  Takenori Sakamoto

发明人： Suguru Fujita ,  Hideki Aoyagi ,  Takenori Sakamoto

IPC分类号： H04L7/00

CPC分类号： H04L7/0054 ,  H03L7/081 ,  H03L7/0814 ,  H03L7/087 ,  H03L7/091 ,  H04L7/0037 ,  H04L25/068

摘要： The present invention has an object to provide a wireless apparatus which is capable of correctly sampling a waveform of a pulse even when a shape of the pulse is varied.A synchronizing apparatus for causing an input signal to be synchronized with a clock signal is equipped with sampling unit 102, 103, and delay control unit 112. The sampling unit 102 and 103 sample the input signal at first sampling timing and second sampling timing, which are separated from each other in a predetermined time interval. The delay control unit 112 shifts both the first and second sampling timing during synchronous pull-in operation, and also, narrows the interval between said first and second sampling timing during synchronous follow-up operation. A synchronous status judging unit 105 judges whether or not the input signal is synchronized with the clock signal based upon a phase error amount outputted from a phase error calculating unit 104, and outputs the synchronous status to a delay amount control unit 106. The delay amount control unit 106 controls to increase/decrease delay amounts which have been presently set in variable delay devices 107 and 108 based upon the phase error amount outputted from the phase error calculating unit 104 and the synchronous status outputted from the synchronous status judging unit 105.

摘要翻译： 本发明的目的是提供一种即使当脉冲的形状改变时也能够正确地采样脉冲波形的无线装置。 用于使输入信号与时钟信号同步的同步装置配备有采样单元102,103和延迟控制单元112.采样单元102和103在第一采样定时和第二采样定时对输入信号进行采样，其中 在预定的时间间隔彼此分离。 延迟控制单元112在同步拉入操作期间移动第一和第二采样定时两者，并且在同步跟随操作期间也缩小所述第一和第二采样定时之间的间隔。 同步状态判断单元105基于从相位误差计算单元104输出的相位误差量判断输入信号是否与时钟信号同步，并将同步状态输出到延迟量控制单元106.延迟量 控制单元106基于从相位误差计算单元104输出的相位误差量和从同步状态判断单元105输出的同步状态来控制当前在可变延迟装置107和108中设置的延迟量的增减。

公开(公告)号：US08504101B2

公开(公告)日：2013-08-06

申请号：US12067062

申请日：2006-09-25

申请人： Tomoya Urushihara ,  Akihiko Matsuoka ,  Katsuaki Abe ,  Kentaro Miyano ,  Takenori Sakamoto

发明人： Tomoya Urushihara ,  Akihiko Matsuoka ,  Katsuaki Abe ,  Kentaro Miyano ,  Takenori Sakamoto

IPC分类号： H04M1/00

CPC分类号： H04B1/406 ,  H04W88/06

摘要： A multimode wireless communication apparatus that supports plural wireless communication systems and switches wireless communication systems to communicate. The apparatus includes a signal processor capable of switching wireless communication systems by plural manners; and a controller that directs to the signal processor a combination of manners of switching wireless communication systems according to a communication environment. The signal processor switches wireless communication systems according to the combination of manners of switching wireless communication systems directed from the controller.

摘要翻译： 一种支持多个无线通信系统并切换无线通信系统进行通信的多模无线通信装置。 该装置包括能够通过多种方式切换无线通信系统的信号处理器; 以及根据通信环境将切换无线通信系统的方式的组合指向信号处理器的控制器。 信号处理器根据从控制器引导的切换无线通信系统的方式的组合来切换无线通信系统。

公开(公告)号：US08379764B2

公开(公告)日：2013-02-19

申请号：US12992253

申请日：2009-07-30

申请人： Takahiro Ohyama ,  Takenori Sakamoto

发明人： Takahiro Ohyama ,  Takenori Sakamoto

IPC分类号： H04L27/06 ,  H03D1/00

CPC分类号： H04L25/0216 ,  H04B1/71637 ,  H04B1/7183 ,  H04L25/0224 ,  H04L25/0226 ,  H04L27/06 ,  H04L2025/03388

摘要： Disclosed are a receiving device and a channel estimation method that are capable of using the amplitude information of a received signal to perform proper channel estimation. In the device, a detection section (102) extracts the amplitude information of the OOK modulation signal sequence in which a known CES (Channel Estimation Sequence) composed of data “0” and “1” is OOK (On Off Keying)-modulated to obtain a detected signal sequence. A “1”-detection section (1042) extracts only the sample value corresponding to the data “1” from the sample values of the detected signal sequence to obtain an extracted signal sequence. A correlation calculating section (1043) performs the correlation calculation between the extracted signal sequence and the CES. A propagation delay estimation section (1044) estimates the propagation delay amount of a CIR (Channel Impulse Response) from the correlation calculation. An amplitude coefficient estimation section (1045) estimates the amplitude coefficient of the CIR from the correlation calculation.

摘要翻译： 公开了能够使用接收信号的振幅信息进行适当的信道估计的接收装置和信道估计方法。 在该装置中，检测部（102）提取OOK调制信号序列的振幅信息，其中由数据0和1组成的已知CES（信道估计序列）是OOK（开关键控））调制以获得检测信号 序列。 1检测部分（1042）仅从检测到的信号序列的样本值中提取与数据1相对应的样本值，以获得提取的信号序列。 相关计算部（1043）进行所提取的信号序列和CES之间的相关计算。 传播延迟估计部（1044）从相关计算估计CIR（信道脉冲响应）的传播延迟量。 幅度系数估计部（1045）根据相关计算来估计CIR的振幅系数。

公开(公告)号：US07817753B2

公开(公告)日：2010-10-19

申请号：US11915330

申请日：2006-05-23

申请人： Katsuaki Abe ,  Takenori Sakamoto

发明人： Katsuaki Abe ,  Takenori Sakamoto

IPC分类号： H04L27/06 ,  H03D1/00

CPC分类号： H04L27/34 ,  H04L1/0054 ,  H04L1/0068 ,  H04L1/206 ,  H04L25/067

摘要： A reception quality estimating apparatus, a wireless communication system and a reception quality estimating method wherein the communication qualities in a case where different communication schemes are used to have communication can be artificially estimated without switching the communication schemes to be used for the communication. A wireless communication apparatus (100) comprises a reception processing part (110), an artificially decoded error estimating part (120), and an upper-order layer processing part (130). An orthogonal vector data sequence (152), which is generated by a demodulating part (111) from a received signal (150), for each symbol in the current modulation scheme is used to artificially generate a likelihood metric value (155) obtained in a case of using a second communication scheme, which has a larger number of modulation multi-values than the current communication scheme, to perform a signal point arrangement. An artificially decoding part (122) then uses the likelihood metric value (155) to perform an artificial error correction decoding process, a result of which (156) is then subjected to an error detecting process.

摘要翻译： 接收质量估计装置，无线通信系统和接收质量估计方法，其中在不使用通信方式进行通信的情况下，可以人为地估计在不同的通信方案被用于通信的情况下的通信质量。 无线通信装置（100）包括接收处理部（110），人为解码的误差估计部（120）和高阶层处理部（130）。 使用当前调制方案中的每个符号从接收信号（150）由解调部分（111）生成的正交矢量数据序列（152），以人为地生成在当前调制方案中获得的似然度量值（155） 使用具有比当前通信方案更多数量的调制多值的第二通信方案来执行信号点排列的情况。 人造解码部分（122）然后使用似然度量值（155）来执行人造纠错解码处理，其结果（156）接着进行错误检测处理。

公开(公告)号：US20060150174A1

公开(公告)日：2006-07-06

申请号：US10545869

申请日：2004-02-16

申请人： Katsuaki Abe ,  Takenori Sakamoto

发明人： Katsuaki Abe ,  Takenori Sakamoto

IPC分类号： G06F9/44

CPC分类号： H04W8/245 ,  G06F8/65 ,  H04B1/0003 ,  H04W8/22

摘要： A radio communication apparatus to be changed in function by software, when downloading software from a download server, first downloads software limited in operation and then configures a software radio section. After the configuration and the operation confirmation have been normally completed, execution-allowing key information is requested and received. Using it, reconfiguration is carried out in part thereby enabling all the operations. Accordingly, it is possible to safely carry out a download and a setting update of software to the radio communication apparatus.

摘要翻译： 通过软件功能改变的无线电通信装置当从下载服务器下载软件时，首先下载在操作中限制的软件，然后配置软件无线电部分。 在配置和操作确认已经正常完成之后，请求和接收执行允许密钥信息。 使用它，部分地执行重新配置，从而实现所有操作。 因此，可以安全地向无线通信装置执行软件的下载和设置更新。

公开(公告)号：US20130163656A1

公开(公告)日：2013-06-27

申请号：US13818629

申请日：2011-09-09

申请人： Takenori Sakamoto

发明人： Takenori Sakamoto

IPC分类号： H04L1/20

CPC分类号： H04L1/206 ,  H04L27/364 ,  H04L27/3809 ,  H04L27/3863

摘要： By a simple computation, orthogonal errors from an orthogonal modulator and an orthogonal demodulator are separately corrected. Based on the amplitude of a demodulated signal, an orthogonal-error detection unit (320) detects orthogonal errors from an orthogonal modulation unit (140) and an orthogonal demodulation unit (230). Specifically, according to the distribution of transmission signal points on an I-Q plane, demultiplexers (321 and 322) in an orthogonal-error detection unit (320) separate a demodulated signal into a signal on the I-axis and a signal on the Q-axis. Zero-crossing detection units (325 and 326) detect the amplitudes of the separated signals at the intersection of the I- and Q-axes. The orthogonal-error detection unit (320) detects the orthogonal errors based on results from comparing the amplitudes at said intersection. A gain control unit (330) controls settings for a transmission orthogonal-error correction unit (120) and reception orthogonal-error correction unit (250) according to the detected orthogonal errors.

摘要翻译： 通过简单的计算，可以分别校正来自正交调制器和正交解调器的正交误差。 基于解调信号的幅度，正交误差检测单元（320）从正交调制单元（140）和正交解调单元（230）检测正交误差。 具体地，根据IQ平面上的发送信号点的分布，正交误差检测单元（320）中的解复用器（321和322）将解调信号分离成I轴上的信号，并将Q- 轴。 过零检测单元（325和326）检测在I轴和Q轴交叉处的分离信号的振幅。 正交误差检测单元（320）根据比较所述交点处的振幅的结果来检测正交误差。 增益控制单元（330）根据检测到的正交误差来控制发送正交误差校正单元（120）和接收正交误差校正单元（250）的设置。