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. 发明申请

US20130157589A1 TRANSMISSION-RECEPTION DEVICE 有权
标题翻译：传输接收设备
公开(公告)号：US20130157589A1
公开(公告)日：2013-06-20
申请号：US13814914
申请日：2012-01-31
申请人： Naganori Shirakata , Tadashi Morita
发明人： Naganori Shirakata , Tadashi Morita
IPC分类号： H04B1/40
CPC分类号： H04B1/40 , H04L25/068 , H04L27/2636 , H04L27/32 , H04L27/367
摘要： A transmission-reception device includes a radio frequency section that performs a frequency conversion on a signal which is modulated using a single carrier transmission system, a correction coefficient multiplier that multiplies a frequency domain signal by a distortion correction coefficient in the frequency conversion of the radio frequency section to correct a distortion, a first transformer that converts a time domain signal into a frequency domain signal at a time of reception, and converts the frequency domain signal which is distortion-corrected by the correction coefficient multiplier into a time domain signal at a time of transmission, and a second transformer that converts a time domain signal into a frequency domain signal at a time of transmission, and converts the frequency domain signal which is distortion-corrected by the correction coefficient multiplier into a time domain signal at a time of reception.
摘要翻译：发送接收装置包括对使用单载波传输系统调制的信号进行频率变换的射频部，将频域信号乘以无线电的频率变换中的失真校正系数的校正系数乘法器频率部分，用于校正失真;第一变压器，其在接收时将时域信号转换为频域信号，并将由校正系数乘法器进行失真校正的频域信号转换为时域信号，发送时间以及在发送时将时域信号变换为频域信号的第二变换器，将由校正系数乘法器进行了失真校正的频域信号转换为时域信号接待处

2. 发明授权

US09203448B2 Wireless communication apparatus 有权
标题翻译：无线通信装置
公开(公告)号：US09203448B2
公开(公告)日：2015-12-01
申请号：US14001061
申请日：2012-02-27
申请人： Tadashi Morita , Naganori Shirakata
发明人： Tadashi Morita , Naganori Shirakata
IPC分类号： H04K1/02 , H04L25/03 , H04L25/49 , H04B1/04 , H03F1/32
CPC分类号： H04B1/0475 , H03F1/3241 , H03F1/34 , H03F3/24 , H04B2001/0433
摘要： A transmission RF section (101) up-converts a DA-converted test signal into a high-frequency signal. An amplitude of the high-frequency signal, an envelope of which is detected by a loop-back section, is detected by an amplitude detector (400). An inverse characteristic calculator (402) converts the detected amplitude into an amplitude in the transmission RF section (101) using an inverse conversion table (407) and then calculates amplitude inverse characteristics. An FIR filter (103) corrects a signal band of a transmission signal based on a result of an inverse Fourier transform calculated by an IFFT section (405) based on the amplitude inverse characteristics as a variable factor.
摘要翻译：发送RF部（101）将DA转换后的测试信号上变频为高频信号。通过振幅检测器（400）检测由环路部分检测到的包络线的高频信号的振幅。逆特性计算器（402）使用逆转换表（407）将检测到的振幅转换成发送RF部（101）的振幅，然后计算振幅反向特性。 FIR滤波器（103）基于作为可变因子的幅度反向特性，基于由IFFT部（405）计算出的傅里叶逆变换的结果来校正发送信号的信号频带。

3. 发明申请

US20130329832A1 WIRELESS COMMUNICATION APPARATUS 有权
标题翻译：无线通信设备
公开(公告)号：US20130329832A1
公开(公告)日：2013-12-12
申请号：US14001061
申请日：2012-02-27
申请人： Tadashi Morita , Naganori Shirakata
发明人： Tadashi Morita , Naganori Shirakata
IPC分类号： H04B1/04
CPC分类号： H04B1/0475 , H03F1/3241 , H03F1/34 , H03F3/24 , H04B2001/0433
摘要： A transmission RF section (101) up-converts a DA-converted test signal into a high-frequency signal. An amplitude of the high-frequency signal, an envelope of which is detected by a loop-back section, is detected by an amplitude detector (400). An inverse characteristic calculator (402) converts the detected amplitude into an amplitude in the transmission RF section (101) using an inverse conversion table (407) and then calculates amplitude inverse characteristics. An FIR filter (103) corrects a signal band of a transmission signal based on a result of an inverse Fourier transform calculated by an IFFT section (405) based on the amplitude inverse characteristics as a variable factor.
摘要翻译：发送RF部（101）将DA转换后的测试信号上变频为高频信号。通过振幅检测器（400）检测由环路部分检测到的包络线的高频信号的振幅。逆特性计算器（402）使用逆转换表（407）将检测到的振幅转换成发送RF部（101）的振幅，然后计算振幅反向特性。 FIR滤波器（103）基于作为可变因子的幅度反向特性，基于由IFFT部（405）计算出的傅里叶逆变换的结果来校正发送信号的信号频带。

4. 发明授权

US09065538B2 Transmission-reception device 有权
标题翻译：发送接收装置
公开(公告)号：US09065538B2
公开(公告)日：2015-06-23
申请号：US13814914
申请日：2012-01-31
申请人： Naganori Shirakata , Tadashi Morita
发明人： Naganori Shirakata , Tadashi Morita
IPC分类号： H04B1/10 , H04B1/40 , H04L27/26 , H04L25/06 , H04L27/36 , H04L27/32
CPC分类号： H04B1/40 , H04L25/068 , H04L27/2636 , H04L27/32 , H04L27/367
摘要： A transmission-reception device includes a radio frequency section that performs a frequency conversion on a signal which is modulated using a single carrier transmission system, a correction coefficient multiplier that multiplies a frequency domain signal by a distortion correction coefficient in the frequency conversion of the radio frequency section to correct a distortion, a first transformer that converts a time domain signal into a frequency domain signal at a time of reception, and converts the frequency domain signal which is distortion-corrected by the correction coefficient multiplier into a time domain signal at a time of transmission, and a second transformer that converts a time domain signal into a frequency domain signal at a time of transmission, and converts the frequency domain signal which is distortion-corrected by the correction coefficient multiplier into a time domain signal at a time of reception.
摘要翻译：发送接收装置包括对使用单载波传输系统调制的信号进行频率变换的射频部，将频域信号乘以无线电的频率变换中的失真校正系数的校正系数乘法器频率部分，用于校正失真;第一变压器，其在接收时将时域信号转换为频域信号，并将由校正系数乘法器进行失真校正的频域信号转换为时域信号，发送时间以及在发送时将时域信号变换为频域信号的第二变换器，将由校正系数乘法器进行了失真校正的频域信号转换为时域信号接待处

5. 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。

6. 发明授权

US08515477B2 Base station and communication method 有权
标题翻译：基站和通信方式
公开(公告)号：US08515477B2
公开(公告)日：2013-08-20
申请号：US12673885
申请日：2009-06-26
申请人： Naotake Yamamoto , Hiroshi Hayashino , Hironori Nakae , Naganori Shirakata
发明人： Naotake Yamamoto , Hiroshi Hayashino , Hironori Nakae , Naganori Shirakata
IPC分类号： H04W72/08
CPC分类号： H04W72/085 , H04L1/1893 , H04L5/06 , H04W28/04
摘要： A base station includes: an estimation section estimating transmission condition of each of frequency channels used for communication; a reception section receiving a data signal from each communication terminal through any of the frequency channels; a measurement section measuring received signal power of the received data signal for each frequency channel; a determination section determining, for each frequency channel, whether the received data signal is demodulated errorlessly; and a control section assigning frequency channels estimated as being in good transmission condition by the estimation section, to communication terminals the data signals of which are determined as not being errorlessly demodulated by the determination section, such that a frequency channel in a better transmission condition is assigned preferentially to a communication terminal having larger received signal power detected by the detection section, and transmitting retransmission request signals requesting the communication terminals to retransmit the data signals using the assigned frequency channels.
摘要翻译：基站包括：估计部，估计用于通信的每个频道的传输条件; 接收部分，通过任何频道从每个通信终端接收数据信号; 测量部分，测量每个频道的接收数据信号的接收信号功率; 确定部，为每个频道确定所接收的数据信号是否无误地解调; 以及控制部，通过所述估计部分将被估计为处于良好发送状态的频率信道分配给所述数据信号被确定为不被所述确定部无错误地解调的通信终端，使得更好的发送条件下的频道为优先分配给具有由检测部检测到的较大接收信号功率的通信终端，以及发送请求通信终端的重传请求信号，以使用所分配的频率信道重传数据信号。

7. 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）。

8. 发明申请

US20130142099A1 WIRELESS COMMUNICATION DEVICE AND SEMICONDUCTOR DEVICE 有权
标题翻译：无线通信设备和半导体器件
公开(公告)号：US20130142099A1
公开(公告)日：2013-06-06
申请号：US13814864
申请日：2012-02-06
申请人： Naganori Shirakata , Naoya Yosoku
发明人： Naganori Shirakata , Naoya Yosoku
IPC分类号： H04W52/18
CPC分类号： H04W52/18 , H04W52/028 , Y02D70/142 , Y02D70/144
摘要： A transmission power controller turns on a power supply to a transmitter at a given time taking a power rise time into account before a start time of transmission processing in the transmitter, and turns off the power supply to the transmitter when the transmission processing is finished. A reception power controller turns on a power supply to a receiver at a given time taking a power rise time into account before a time at which an ACK is assumed to be arrival from a wireless communication device on a receiver side responsive to data transmitted from the transmitter, and turns off the power supply to the receiver when the reception processing of the ACK in the receiver is finished.
摘要翻译：发送功率控制器在给定时间接通发送机的电源，在发送器的发送处理的开始时间之前考虑上电时间，并且在发送处理结束时关闭向发送机的电力供应。接收功率控制器在给定时间开启对接收机的电源，在考虑到在从接收机侧的无线通信设备到达ACK的时间之前考虑上电时间，响应于从发送器，并且当接收器中的ACK的接收处理完成时，关闭接收器的电源。

9. 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。

10. 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。

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