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1. 发明授权

US08274926B2 Control device, communication terminal, control method, and communication method 有权
标题翻译：控制装置，通讯终端，控制方式及通讯方式
公开(公告)号：US08274926B2
公开(公告)日：2012-09-25
申请号：US12677730
申请日：2009-07-08
申请人： Naganori Shirakata , Hironori Nakae , Koji Imamura
发明人： Naganori Shirakata , Hironori Nakae , Koji Imamura
IPC分类号： H04B7/212 , H04W4/00 , G06F15/173
CPC分类号： H04W72/082 , H04W72/042 , H04W84/10
摘要： In a wireless communication system according to the present invention: a control device and a communication terminal communicate in an active period. The control device: generates a first beacon packet including one or more candidate channels; transmits the first beacon packet at the beginning of the active period; determines whether or not a use channel is to be changed based on a communication state, and generates a second beacon packet including information of a determination result; transmits the second beacon packet at the end of the active period; and, when it is determined that the use channel is to be changed, changes the use channel after the active period ends and before a next active period starts. The communication terminal: receives the first and second beacon packets; and, based on the second beacon packet, changes the use channel after the active period ends and before a next active period starts.
摘要翻译：在根据本发明的无线通信系统中，控制装置和通信终端在活动期间进行通信。控制装置：生成包括一个或多个候选信道的第一信标包; 在活动期的开始时发送第一信标分组; 基于通信状态确定是否要改变使用信道，并生成包含确定结果信息的第二信标包; 在活动期结束时发送第二信标包; 并且当确定要改变使用频道时，在有效时段结束之后和在下一活动时段开始之前改变使用频道。通信终端：接收第一和第二信标分组; 并且基于第二信标包在活动时段结束之后并且在下一活动时段开始之前改变使用频道。

2. 发明申请

US20110261764A1 CONTROL DEVICE, COMMUNICATION TERMINAL, CONTROL METHOD, AND COMMUNICATION METHOD 有权
标题翻译：控制装置，通信终端，控制方法和通信方法
公开(公告)号：US20110261764A1
公开(公告)日：2011-10-27
申请号：US12677730
申请日：2009-07-08
申请人： Naganori Shirakata , Hironori Nakae , Koji Imamura
发明人： Naganori Shirakata , Hironori Nakae , Koji Imamura
IPC分类号： H04W72/04
CPC分类号： H04W72/082 , H04W72/042 , H04W84/10
摘要： In a wireless communication system according to the present invention: a control device and a communication terminal communicate in an active period. The control device: generates a first beacon packet including one or more candidate channels; transmits the first beacon packet at the beginning of the active period; determines whether or not a use channel is to be changed based on a communication state, and generates a second beacon packet including information of a determination result; transmits the second beacon packet at the end of the active period; and, when it is determined that the use channel is to be changed, changes the use channel after the active period ends and before a next active period starts. The communication terminal: receives the first and second beacon packets; and, based on the second beacon packet, changes the use channel after the active period ends and before a next active period starts.
摘要翻译：在根据本发明的无线通信系统中，控制装置和通信终端在活动期间进行通信。控制装置：生成包括一个或多个候选信道的第一信标包; 在活动期的开始时发送第一信标分组; 基于通信状态确定是否要改变使用信道，并生成包含确定结果信息的第二信标包; 在活动期结束时发送第二信标包; 并且当确定要改变使用频道时，在有效时段结束之后和在下一活动时段开始之前改变使用频道。通信终端：接收第一和第二信标分组; 并且基于第二信标包在活动时段结束之后并且在下一活动时段开始之前改变使用频道。

3. 发明授权

US08693592B2 Receiving device and receiving method 有权
标题翻译：接收设备和接收方式
公开(公告)号：US08693592B2
公开(公告)日：2014-04-08
申请号：US12597571
申请日：2008-03-10
申请人： Koji Imamura , Naganori Shirakata , Shuya Hosokawa , Kenji Miyanaga
发明人： Koji Imamura , Naganori Shirakata , Shuya Hosokawa , Kenji Miyanaga
IPC分类号： H04L27/06
CPC分类号： H03G3/3052 , H03G3/3068
摘要： An AGC unit starts a gain control of the variable gain amplifying unit when a bit saturation occurs in the digital baseband signal output from the A/D converting unit, and starts a gain control of the variable gain amplifying unit when a detection of STS from the digital baseband signal output from the A/D converting unit is started. The AGC unit performs the gain control of the variable gain amplifying unit once when the detection of STS is started, and performs the gain control of the variable gain amplifying unit twice when the bit saturation occurs, namely a larger number of times than when the detection of STS is started.
摘要翻译：当从A / D转换单元输出的数字基带信号中产生位饱和时，AGC单元开始可变增益放大单元的增益控制，并且当从该A / D转换单元检测到STS时开始可变增益放大单元的增益控制开始从A / D转换单元输出的数字基带信号。当STS的检测开始时，AGC单元执行可变增益放大单元的增益控制，并且当发生位饱和时，执行可变增益放大单元的增益控制两次，即比检测时更大的次数的STS已经开始了。

4. 发明授权

US08467726B2 Communication device and communication method 有权
标题翻译：通信设备和通信方式
公开(公告)号：US08467726B2
公开(公告)日：2013-06-18
申请号：US13144565
申请日：2010-08-25
申请人： Naganori Shirakata , Koji Imamura , Yoshitaka Ohta
发明人： Naganori Shirakata , Koji Imamura , Yoshitaka Ohta
IPC分类号： H04B7/00
CPC分类号： A61B5/1118 , A61B5/0002 , A61B5/067 , A61B5/1126 , A61B2560/0209 , H04W4/21 , H04W8/22 , Y02D70/22
摘要： The communication device (10) which performs, when attached to the first region of the moving body, wireless communication with the communication partner device (20) attached to the second region of the moving body includes: a motion obtaining unit (11) which obtains motion information indicating a motion of at least one region of the moving body; a parameter determining unit (12) which determines a parameter corresponding to the motion of the region of the moving body indicated by the motion information obtained by the motion obtaining unit (11), using parameter information in which the motion and a parameter indicating a communication mode for successful wireless communication are associated with each other; and a wireless communication unit (13) which performs wireless communication with the communication partner device (20) according to the parameter determined by the parameter determining unit (12).
摘要翻译：当连接到移动体的第一区域时，执行与附接到移动体的第二区域的通信对方设备（20）的无线通信的通信设备（10）包括：运动获取单元（11），其获得指示移动体的至少一个区域的运动的运动信息; 参数确定单元，其使用参数信息来确定由运动获取单元（11）获得的运动信息所指示的与移动体的区域的运动相对应的参数，其中运动和参数指示通信成功的无线通信模式相互关联; 以及根据由参数确定单元（12）确定的参数与通信对方设备（20）进行无线通信的无线通信单元（13）。

5. 发明授权

US07983311B2 Signal detection device and signal detection method 有权
标题翻译：信号检测装置及信号检测方法
公开(公告)号：US07983311B2
公开(公告)日：2011-07-19
申请号：US12298375
申请日：2007-04-23
申请人： Shuya Hosokawa , Naganori Shirakata , Koichiro Tanaka , Kenji Miyanaga , Koji Imamura
发明人： Shuya Hosokawa , Naganori Shirakata , Koichiro Tanaka , Kenji Miyanaga , Koji Imamura
IPC分类号： H04J3/00
CPC分类号： H04W56/0085 , H04L7/042 , H04L25/0224 , H04L27/261 , H04L27/2662 , H04W28/06 , H04W56/00
摘要： A correlation unit (32) sequentially obtains correlation values between a baseband signal and a reference signal and outputs the obtained reference signal to a section division unit (33). The output of the correlation unit (32) is divided into symbol time periods by the section division unit (33). A section position detection unit (34) detects a largest correlation value in each of sections resulting from the division by the correlation unit (32) and outputs, to a synchronization judgment unit (35), first position information that indicates a relative position of each detected largest correlation value. The synchronization judgment unit (35) detects an arrival of a packet signal and estimates a symbol timing based on the first position information of the sections.
摘要翻译：相关单元（32）顺序地获得基带信号和参考信号之间的相关值，并将获得的参考信号输出到区段划分单元（33）。相关单元（32）的输出由区段划分单元（33）分成符号时间段。区间位置检测单元（34）检测由相关单元（32）分割得到的每个区间中的最大相关值，并向同步判断单元（35）输出表示每个区域的相对位置的第一位置信息检测到最大相关值。同步判断单元（35）检测分组信号的到达，并基于各部分的第一位置信息来估计符号定时。

6. 发明申请

US20090175299A1 SIGNAL DETECTION DEVICE AND SIGNAL DETECTION METHOD 有权
标题翻译：信号检测装置和信号检测方法
公开(公告)号：US20090175299A1
公开(公告)日：2009-07-09
申请号：US12298375
申请日：2007-04-23
申请人： Shuya Hosokawa , Naganori Shirakata , Koichiro Tanaka , Kenji Miyanaga , Koji Imamura
发明人： Shuya Hosokawa , Naganori Shirakata , Koichiro Tanaka , Kenji Miyanaga , Koji Imamura
IPC分类号： H04J3/06 , H04L27/06
CPC分类号： H04W56/0085 , H04L7/042 , H04L25/0224 , H04L27/261 , H04L27/2662 , H04W28/06 , H04W56/00
摘要： A correlation unit (32) sequentially obtains correlation values between a baseband signal and a reference signal and outputs the obtained reference signal to a section division unit (33). The output of the correlation unit (32) is divided into symbol time periods by the section division unit (33). A section position detection unit (34) detects a largest correlation value in each of sections resulting from the division by the correlation unit (32) and outputs, to a synchronization judgment unit (35), first position information that indicates a relative position of each detected largest correlation value. The synchronization judgment unit (35) detects an arrival of a packet signal and estimates a symbol timing based on the first position information of the sections.
摘要翻译：相关单元（32）顺序地获得基带信号和参考信号之间的相关值，并将获得的参考信号输出到区段划分单元（33）。相关单元（32）的输出由区段划分单元（33）分成符号时间段。区间位置检测单元（34）检测由相关单元（32）分割得到的每个区间中的最大相关值，并向同步判断单元（35）输出表示每个区域的相对位置的第一位置信息检测到最大相关值。同步判断单元（35）检测分组信号的到达，并基于各部分的第一位置信息来估计符号定时。

7. 发明申请

US20100260084A1 WIRELESS COMMUNICATION APPARATUS, TERMINAL, SYSTEM, PROGRAM 有权
标题翻译：无线通信设备，终端，系统，程序
公开(公告)号：US20100260084A1
公开(公告)日：2010-10-14
申请号：US12675588
申请日：2009-06-29
申请人： Koji Imamura , Hiroshi Hayashino , Naganori Shirakata
发明人： Koji Imamura , Hiroshi Hayashino , Naganori Shirakata
IPC分类号： H04W72/04 , H04W52/02
CPC分类号： H04W52/0216 , H04W76/28 , Y02D70/142 , Y02D70/144 , Y02D70/166 , Y02D70/168
摘要： Provided is a compact and low power consumption wireless communication system, including a base station and communication terminals, in which power consumption of the communication terminal is reduced. The base station alternately sets an active interval during which predetermined data communication is performed, and an inactive interval during which the predetermined data communication is not performed. During the active interval, a beacon including information indicating a start timing of a subsequent active interval is transmitted and received. During the inactive interval, a sub-beacon including information providing notice of a transmission timing of a subsequent beacon is transmitted and received. When receiving the sub-beacon, the communication terminal obtains the transmission timing of the subsequent beacon and stops a supply of power to an unit related to a wireless communication function until the transmission timing.
摘要翻译：提供了一种紧凑且低功耗的无线通信系统，其包括基站和通信终端，其中通信终端的功耗被降低。基站交替地设置执行预定数据通信的活动间隔，以及不执行预定数据通信的无效间隔。在活动间隔期间，发送并接收包括指示后续活动间隔的开始定时的信息的信标。在非活动间隔期间，发送并接收包括提供通知后续信标的发送定时的信息的子信标。当接收到子信标时，通信终端获得后续信标的发送定时，并停止向与无线通信功能相关的单元的电力供应直到发送定时。

8. 发明申请

US20100008346A1 SIGNAL JUDGMENT APPARATUS AND SIGNAL JUDGMENT METHOD 有权
标题翻译：信号判断装置和信号判断方法
公开(公告)号：US20100008346A1
公开(公告)日：2010-01-14
申请号：US12376157
申请日：2008-02-01
申请人： Naganori Shirakata , Shuya Hosokawa , Kenji Miyanaga , Koji Imamura
发明人： Naganori Shirakata , Shuya Hosokawa , Kenji Miyanaga , Koji Imamura
IPC分类号： H04J1/00 , H04L27/28
CPC分类号： H04L25/0228 , H04L25/06 , H04L27/2647
摘要： An FFT unit (170) separates a received symbol by Fourier conversion into a plurality of subcarriers, and a phase difference detection unit (193) detects a phase difference between 4 pilot carriers and data carriers adjacent to the pilot carriers (adjacent carriers) The decision unit (194) decides whether the phase differences between the pilot carriers and the adjacent carriers detected by the phase difference detection unit (193) fulfill a phase difference condition. Then, the decision unit (194) decides that the received symbol is an HTSIG if the number of phase differences that fulfill the phase difference condition is greater than or equal to a predetermined number, and decides that the received symbol is either a SIG or a DATA if the number of phase differences that fulfill the phase difference condition is less than the predetermined number.
摘要翻译： FFT单元（170）通过傅里叶变换将接收到的符号分离成多个子载波，相位差检测单元（193）检测4个导频载波和与导频载波（相邻载波）相邻的数据载波之间的相位差。单元（194）判定由相位差检测单元（193）检测的导频载波与相邻载波之间的相位差是否达到相位差条件。然后，如果满足相位差条件的相位差的数量大于或等于预定数量，则判定单元（194）判定所接收的符号是HTSIG，并且确定接收的符号是SIG或 DATA，如果实现相位差条件的相位差数量小于预定数量。

9. 发明授权

US08023599B2 Interfering signal characterizing quantity storing method and device, interfering signal characterizing quantity acquiring method and device, and interfering signal suppressing method and device 有权
标题翻译：干扰信号特征量存储方法和装置，干扰信号特征量获取方法和装置，以及干扰信号抑制方法和装置
公开(公告)号：US08023599B2
公开(公告)日：2011-09-20
申请号：US12064421
申请日：2006-10-23
申请人： Koichiro Tanaka , Naganori Shirakata , Yoshio Urabe , Tsutomu Mukai , Kenji Miyanaga , Koji Imamura , Shuya Hosokawa
发明人： Koichiro Tanaka , Naganori Shirakata , Yoshio Urabe , Tsutomu Mukai , Kenji Miyanaga , Koji Imamura , Shuya Hosokawa
IPC分类号： H04B7/10
CPC分类号： H04B1/1027 , H04B1/7107 , H04B17/336 , H04L2025/03414 , H04L2025/03426
摘要： Interfering signals coming at random timings from different radio stations are identified. In order to attain this, a method for storing the characterizing quantity of an interfering signal included in a received signal includes calculating the characterizing quantity of the received signal, determining a probability that a desired signal is included in the received signal, determining that the received signal is an interfering signal when determining that there is no probability that the desired signal is included in the received signal, and storing the characterizing quantity of the received signal as an interfering signal characterizing quantity when it is determined at the received signal determination step that there is no probability that the desired signal is included in the received signal.
摘要翻译：确定来自不同电台的随机定时信号的干扰信号。为了实现这一点，包括在接收信号中的用于存储干扰信号的特征量的方法包括：计算接收信号的特征量，确定所需信号包含在接收信号中的概率，确定接收到的信号信号是确定在接收信号中不存在所需信号的概率时的干扰信号，并且当在接收信号确定步骤确定接收信号确定步骤时将接收信号的特征量存储为干扰信号表征量在所接收的信号中不包含所需信号的概率。

10. 发明申请

US20100197262A1 RECEPTION DEVICE AND RECEPTION METHOD 有权
标题翻译：接收设备和接收方法
公开(公告)号：US20100197262A1
公开(公告)日：2010-08-05
申请号：US12376387
申请日：2008-01-09
申请人： Shuya Hosokawa , Kenji Miyanaga , Naganori Shirakata , Koji Imamura , Koichiro Tanaka
发明人： Shuya Hosokawa , Kenji Miyanaga , Naganori Shirakata , Koji Imamura , Koichiro Tanaka
IPC分类号： H04B1/10 , H04B1/06
CPC分类号： H04B7/0865 , H04B17/345
摘要： The noise amount information storage unit 161 stores noise amount information which indicates relationships between gain value of the variable gain amplification units 121 and 125 and the amount of noise included in BB signals output from the down converters 131 and 135. The AGC unit 140 controls the gain value of the variable gain amplification units 121 and 125 so that the power of BB signals output from the down converters 131 and 135 becomes constant. The noise amount estimation unit 162 estimates noise amount of noise corresponding to the controlled gain value of the variable gain amplification units 121 and 125 by referring to the noise amount information stored in the noise amount information storage unit 161. The weight generation unit 170 generates weight matrix based on results of estimations performed by the channel characteristic estimation unit 150 and the noise estimation unit 162.
摘要翻译：噪声量信息存储单元161存储指示可变增益放大单元121和125的增益值与从下变频器131和135输出的BB信号中包括的噪声量之间的关系的噪声量信息。AGC单元140控制可变增益放大单元121和125的增益值，使得从下变频器131和135输出的BB信号的功率变得恒定。噪声量估计单元162通过参考存储在噪声量信息存储单元161中的噪声量信息来估计与可变增益放大单元121和125的受控增益值相对应的噪声噪声量。权重生成单元170产生权重基于由信道特性估计单元150和噪声估计单元162执行的估计结果的矩阵。

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