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1. 发明专利

JP2010050594A Symbol timing reproducing device 有权
标题翻译：符号定时重现设备
公开(公告)号：JP2010050594A
公开(公告)日：2010-03-04
申请号：JP2008211419
申请日：2008-08-20
申请人： Mitsubishi Electric Corp , Shimada Phys & Chem Ind Co Ltd , 三菱電機株式会社 , 島田理化工業株式会社
发明人： FUJISAWA YUKINORI , KURITA AKIRA
IPC分类号： H04L27/22 , H04L27/38
摘要： PROBLEM TO BE SOLVED: To provide a symbol timing reproducing device which is made small in device scale as much as possible, and is made short in processing delay. SOLUTION: The symbol timing reproducing device 1 includes: a temporary symbol timing position estimating part 13 for estimating a temporary symbol timing position from a reception signal received by a receiver; a numerical sequence generating part 14 for generating a plurality of numerical sequences obtained by defining the temporary symbol timing position and positions before and after the temporary symbol timing position as sample points; a variance value calculating part 15 for calculating respective variance values of the plurality of numerical sequences; a minimum variance value retrieving part 16 for retrieving a variance value to be a minimum; and a symbol timing outputting part 17 for outputting timing of a sample point giving the minimum variance value as symbol timing. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供尽可能小的设备规模的符号定时再现装置，并且在处理延迟方面缩短。符号定时再现装置1包括：临时符号定时位置估计部13，用于从由接收机接收的接收信号估计临时符号定时位置; 数字序列生成部14，用于生成通过将临时符号定时位置和临时符号定时位置之前和之后的位置定义为采样点而获得的多个数字序列; 方差值计算部分15，用于计算多个数字序列的各个方差值; 用于将方差值检索为最小的最小方差值检索部分16; 以及用于输出给出最小方差值的采样点的定时作为符号定时的符号定时输出部17。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2012105137A Communication equipment and data demodulating method 有权
标题翻译：通信设备和数据解调方法
公开(公告)号：JP2012105137A
公开(公告)日：2012-05-31
申请号：JP2010252820
申请日：2010-11-11
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KURITA AKIRA , TAIRA AKINORI
IPC分类号： H04B1/59 , G06K17/00 , H04B1/10
摘要： PROBLEM TO BE SOLVED: To provide communication equipment avoiding interference without dropping communication speed even if an interference problem occurs between a reader device using an FMO system and communication equipment.SOLUTION: Communication equipment performing communication by using mirror sub-carrier modulation includes: sub-carrier component synthesis means (a positive side sub-carrier component extracting portion 11, a negative side sub-carrier component extracting portion 11, desired signal pair interference noise power ratio calculating portions 12and 12, weighting coefficient calculating portions 13and 13, weighting coefficient multiplying portions 14and 14, and a synthesis portion 15) synthesizing respective sub-carrier components while suppressing an interference signal component included in each sub-carrier component based on the interference signal components included in the positive side sub-carrier component and the negative side sub-carrier component of a received mirror sub-carrier signal; and a data demodulating portion 16 demodulating data from the sub-carrier component after synthesis.
摘要翻译：要解决的问题：即使在使用FMO系统的读取装置和通信设备之间发生干扰问题，也可以提供避免干扰的通信设备而不会降低通信速度。解决方案：通过使用镜子副载波调制进行通信的通信设备包括：副载波分量合成装置（正侧副载波分量提取部分11 1 ，负侧副载波分量提取部分11 2 期望的信号对干扰噪声功率比计算部分12 1 和12 2 ，加权系数计算部分13 1 和13 2 14 1 和14 2 ，以及合成部15）合成各子载波成分，同时抑制包含在基于包括在正侧副载波分量中的干扰信号分量和接收到的镜像子载波信号的负侧副载波分量的每个子载波分量; 以及数据解调部分16，在合成之后解调来自副载波分量的数据。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2008258851A Communication device 有权
标题翻译：通信设备
公开(公告)号：JP2008258851A
公开(公告)日：2008-10-23
申请号：JP2007097844
申请日：2007-04-03
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SOGABE YASUSHI , KURITA AKIRA
IPC分类号： H04B7/26 , H04W4/04 , H04W16/02 , H04W76/02
摘要： PROBLEM TO BE SOLVED: To obtain a communication device which starts communication in a short time without hindering road-vehicle communication, with respect to inter-vehicle communication performed by using the same frequency as road-vehicle communication.
SOLUTION: The communication device which performs inter-vehicle communication by using an unused channel out of a plurality of communication channels assigned for road-vehicle communication, includes: a data processing part (7) which selects a communication channel candidate for use in inter-vehicle communication; a CS part (5) which compares a reception signal level in the communication channel candidate with a prescribed threshold and determined whether the communication channel candidate is not used or not; a demodulation part (32) which demodulates a reception signal to output a demodulated signal including determination information for determining whether the communication channel candidate is used in road-vehicle communication or not; and a communication determination part (6) which determines whether confirmation processing of determination information is necessary or not on the basis of a carrier sense result and determines whether inter-vehicle communication using the communication channel candidate is possible or not in the case that the confirmation processing is determined to be necessary.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了获得在短时间内开始通信而不阻碍道路车辆通信的通信设备，关于通过使用与道路车辆通信相同的频率进行的车辆间通信。解决方案：通过使用分配给道路车辆通信的多个通信信道中的未使用信道进行车内通信的通信装置包括：数据处理部（7），其选择通信候选使用在车内通信; CS部分（5），其将通信信道候选中的接收信号电平与规定的阈值进行比较，并确定通信信道候选是否不被使用; 解调部（32），其对接收信号进行解调，以输出解调信号，所述解调信号包括用于确定通信信道候选是否用于道路车辆通信中的确定信息; 以及通信决定部（6），其基于载波侦听结果来判定是否需要确定信息的确认处理，并且在确认是否可以使用通信信道候选者的车辆间通信是否可行的情况下，处理被确定为必要。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2007005931A Clock recovery circuit and method 有权
标题翻译：时钟恢复电路和方法
公开(公告)号：JP2007005931A
公开(公告)日：2007-01-11
申请号：JP2005181086
申请日：2005-06-21
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KURITA AKIRA , SOGABE YASUSHI , ISHIZU FUMIO
IPC分类号： H04L27/22 , H04L7/00
摘要： PROBLEM TO BE SOLVED: To obtain a circuit for recovering a clock signal from an input signal containing a clock signal component with high precision. SOLUTION: The clock recovery circuit comprises a section (9) for generating a rotation factor of such a frequency as a predetermined deviation is added to a desired clock frequency, a section (21) performing correlation processing by multiplying an input signal by the rotation factor, a section (22) for removing noise components from a signal subjected to correlation processing by averaging, and a section (23) performing reverse modulation by multiplying a signal from which noise components are removed by the rotation factor. The clock signal is recovered based on a signal subjected to reverse modulation. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：从具有高精度的时钟信号分量的输入信号中获得用于恢复时钟信号的电路。解决方案：时钟恢复电路包括用于产生这样的频率的旋转因子的部分（9），其中预定偏差被加到期望的时钟频率上;部分（21）通过将输入信号乘以旋转因子，用于通过平均从经过相关处理的信号中去除噪声分量的部分（22）;以及通过将噪声分量除去的信号乘以旋转因子来执行反向调制的部分（23）。基于经过反向调制的信号恢复时钟信号。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2011166597A Carrier wave phase correction circuit 有权
标题翻译：载波波相位校正电路
公开(公告)号：JP2011166597A
公开(公告)日：2011-08-25
申请号：JP2010029195
申请日：2010-02-12
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KURITA AKIRA , NISHIMOTO HIROSHI , TAIRA AKINORI
IPC分类号： H04L27/227 , H04B1/16 , H04L27/38
摘要： PROBLEM TO BE SOLVED: To provide a carrier wave phase correction circuit having an automatic adjustment function for automatically optimizing time constant of an averaging filter of the carrier wave phase correction circuit in response to each of operating conditions of communication devices.
SOLUTION: The carrier wave phase correction circuit includes a carrier wave phase correction portion 10 having the averaging filter 12 for carrying out carrier wave phase correction to a reception baseband signal; a post-correction EVM calculation portion 20 for calculating the post-correction EVM of an output signal from the carrier wave phase correction portion 10, and an optimal time constant calculation portion 30 that calculates the time constant information to the averaging filter 12 based on the post-correction EVM so that the same is outputted thereto. The optimal time constant calculation portion 30 not only sequentially outputs the time constant candidates of the averaging filter 12 as the time constant information but also extracts the time constant that is estimated to be optimal from the time constant candidates by using the value of the post-correction EVM for output as the optimal time constant information.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有自动调整功能的载波相位校正电路，用于响应于通信设备的每个操作条件自动优化载波相位校正电路的平均滤波器的时间常数。解决方案：载波相位校正电路包括具有用于对接收基带信号进行载波相位校正的平均滤波器12的载波相位校正部分10; 用于计算来自载波相位校正部分10的输出信号的校正后EVM的校正后EVM计算部分20，以及基于所述平均滤波器12计算时间常数信息的最优时间常数计算部分30 校正后EVM使得其被输出。最优时间常数计算部分30不仅顺序输出平均滤波器12的时间常数候选作为时间常数信息，而且还通过使用后置时间常数计算部分30从时间常数候选中提取估计为最佳的时间常数，校正EVM作为最优时间常数信息输出。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2007228422A Communication system 审中-公开
标题翻译：通讯系统
公开(公告)号：JP2007228422A
公开(公告)日：2007-09-06
申请号：JP2006049040
申请日：2006-02-24
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： FUKUI NORIYUKI , YAMAUCHI NAOHISA , SAWA KENTARO , TOMIZAWA TOSHIAKI , KATO TAISUKE , KURITA AKIRA
IPC分类号： H04L12/28 , H04W16/30 , H04W36/18
摘要： PROBLEM TO BE SOLVED: To obtain a communication system capable of evading the collision of signals by using the same frequency, while keeping easiness in inter-cell hand-over by using the same frequency. SOLUTION: The communication system includes a plurality of base stations (1, 2) forming service areas by overlapping cells. The same frequency is shared between the adjacent cells concerning the first area, where the cells are overlapped between the adjacent cells, and the second area, which is arranged in the circumference of the first area so as to detect mutual terminals (3, 4) between the adjacent cells. In the meantime, a frequency different from the shared frequency is used for communication concerning the third area having probability not to detect the mutual terminals (3, 4) between the adjacent cells. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了获得能够通过使用相同频率来避免信号的冲突的通信系统，同时通过使用相同的频率来保持小区间切换的容易性。解决方案：通信系统包括通过重叠小区形成服务区域的多个基站（1,2）。在相邻单元之间共享与单元在相邻单元之间重叠的第一区域相邻的单元和布置在第一区域的圆周中的第二区域，以检测相互的端子（3,4）在相邻单元之间。与此同时，与共享频率不同的频率被用于关于具有不检测相邻小区之间的相互终端（3,4）的概率的第三区域的通信。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2007080202A Narrowband wireless communications system 审中-公开
标题翻译：窄带无线通信系统
公开(公告)号：JP2007080202A
公开(公告)日：2007-03-29
申请号：JP2005270573
申请日：2005-09-16
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： ARAKI HIROSHI , KUMAZAWA HIROYUKI , KURITA AKIRA , TSUDA YOSHIAKI
IPC分类号： G08G1/09 , H04B7/26
摘要： PROBLEM TO BE SOLVED: To allow a worker to change the setting of an antenna device installed on the road side, without having to go down to the antenna device, and to inexpensively construct the device without mounting expensive conversion devices thereon.
SOLUTION: This narrow band wireless communications system is provided with adjustment tools 8 for generating adjustment signals, when the settings of the antenna devices 4-1, 4-n are changed; when a control device 6 receives adjustment signal from the adjustment tool 8, the adjustment signal is combined with a baseband signal, packet data being a combined signal thereof are output to the antenna devices 4-1, 4-n; and the antenna devices 4-1, 4-n change the settings in accordance with to the adjustment signal that is multiplexed with the packet data.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了允许工人改变安装在路侧的天线装置的设置，而不必下降到天线装置，并且在不在其上安装昂贵的转换装置的情况下廉价地构造装置。解决方案：当天线装置4-1,4-n的设置改变时，该窄带无线通信系统设置有用于产生调节信号的调整工具8; 当控制装置6从调节工具8接收到调整信号时，将调整信号与基带信号组合，将其组合信号的分组数据输出到天线装置4-1,4-n; 并且天线装置4-1,4-n根据与分组数据多路复用的调整信号来改变设置。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2011091567A Differential decoding circuit 有权
标题翻译：差分解码电路
公开(公告)号：JP2011091567A
公开(公告)日：2011-05-06
申请号：JP2009242673
申请日：2009-10-21
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： HIRAMATSU DAISUKE , KURITA AKIRA , TAIRA AKINORI
IPC分类号： H04L27/38
摘要： PROBLEM TO BE SOLVED: To provide a differential decoding circuit capable of saving circuit scale of a reception processing circuit in a digital communication device corresponding to a plurality of modulation methods. SOLUTION: This differential decoding circuit (55) is applied to a reception processing circuit of a communication device corresponding to a plurality of modulation methods including a differential encoding modulation method, distributes a reception signal to signals of a plurality of systems in accordance with a modulation method designated from among the plurality of modulation methods for performing a decoding process using a signal after the distribution as an input signal. The differential decoding circuit includes: a delay module (55a) to execute delay processing to the input signal to obtain a signal required for differential decoding in accordance with the designated modulation method; a selection module (55b) to select a signal required for the differential decoding from the input signal before the delay and the input signal after the delay in accordance with the designated modulation method; and a calculation module (55c) to perform calculation of the differential decoding to the input signal before the delay and the input signal after the selection by the selection module in accordance with the designated modulation method. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种差分解码电路，其能够在对应于多种调制方法的数字通信设备中节省接收处理电路的电路规模。解决方案：该差分解码电路（55）被应用于对应于包括差分编码调制方法的多种调制方法的通信设备的接收处理电路，将接收信号分配给多个系统的信号使用从用于使用分配之后的信号执行解码处理的多个调制方法中指定的调制方法作为输入信号。差分解码电路包括：延迟模块（55a），用于对输入信号执行延迟处理，以获得根据指定的调制方法进行差分解码所需的信号; 选择模块（55b），用于根据指定的调制方法从延迟之前的输入信号和延迟后的输入信号中选择差分解码所需的信号; 以及计算模块（55c），用于根据所指定的调制方法，对所述延迟之前的输入信号和所述选择模块进行选择之后的输入信号执行所述差分解码的计算。版权所有（C）2011，JPO＆INPIT

9. 发明专利

JP2009033340A Communication system between vehicles, vehicle-mounted transmitter, and communicating method between vehicles 审中-公开
标题翻译：车辆，车辆安装发射机之间的通信系统和车辆之间的通信方法
公开(公告)号：JP2009033340A
公开(公告)日：2009-02-12
申请号：JP2007193598
申请日：2007-07-25
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KURITA AKIRA
IPC分类号： H04B7/26 , G08G1/09 , H04J1/04 , H04J1/16 , H04L27/36 , H04W4/04
摘要： PROBLEM TO BE SOLVED: To obtain a communication system between vehicles which improves frequency using efficiency, offers a substantial service to receiving-side vehicles, and ensure the reception of high preference information by the receiving-side vehicles when a receiving C/N (Carrier to Noise ratio) is very inferior. SOLUTION: A vehicle-mounted receiver is provided with: a C/N estimation unit 21 which calculates quality information of a signal transmitted from a vehicle-mounted transmitter; a modulation system switching unit 22 for demodulation which indicates a modulation system used for demodulation based on the quality information; a high hierarchy modulation system 231 which performs demodulation by a high hierarchy modulation system; and a low hierarchy modulation system demodulation unit 232 which performs demodulation by a low hierarchy modulation system. A vehicle-mounted transmitter is provided with: a preference discrimination unit 11 which classifies the vehicle information into high-preference information and low-preference information; a low hierarchy bitmapping unit 122 which assigns the high preference information to low hierarchy bits; and a high hierarchy bitmapping unit 121 which assigns the low preference information to high hierarchy bits; and modulates the mapped information by the high hierarchy modulation system. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了获得提高频率利用效率的车辆之间的通信系统，对接收侧车辆提供实质性服务，并且当接收C / C接收机确保接收侧车辆接收到高偏好信息时， N（载噪比）非常差。解决方案：车载接收机具有：计算从车载发射机发送的信号的质量信息的C / N估计单元21。用于解调的调制系统切换单元22，其基于质量信息指示用于解调的调制系统; 高层次调制系统231，其通过高层次调制系统进行解调; 以及通过低层调制系统进行解调的低层次调制系统解调单元232。车载发射机设有：将车辆信息分类为高偏好信息和低偏好信息的偏好鉴别单元11; 低级别位图单元122，其将高偏好信息分配给低层位; 以及将低偏好信息分配给高层次位的高层次位图单元121; 并通过高层调制系统调制映射信息。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JP2013100672A On-vehicle communication system, on-vehicle communication apparatus and position determination method 有权
标题翻译：车载通信系统，车载通信装置和位置确定方法
公开(公告)号：JP2013100672A
公开(公告)日：2013-05-23
申请号：JP2011244637
申请日：2011-11-08
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KURITA AKIRA , TAIRA AKINORI
IPC分类号： E05B49/00 , B60R25/04 , H04Q9/00
摘要： PROBLEM TO BE SOLVED: To obtain an on-vehicle communication system in which system costs can be reduced by reducing the number of transmit antennas of an on-vehicle unit.SOLUTION: A portable unit detects a received signal intensity of a signal received from an on-vehicle unit and transmits it to the on-vehicle unit. The on-vehicle unit comprises a driver's seat side intra-car transmit antenna 7, an assistant driver's seat side intra-car transmit antenna 8, a trunk side intra-car transmit antenna 9, a transmit antenna selector 6 which selects any transmit antenna, an ECU 4 which controls the transmit antenna selector 6 to transmit signals from the respective three transmit antennas in different time zones, and a threshold value determination type car inside/outside determination section 42 which compares the received signal intensity for each transmit antenna received from the portable unit with a predetermined threshold value to determine a stage corresponding to the receive signal intensity and determines an area in which the portable unit is located, on the basis of the determined stage for each transmit antenna.
摘要翻译：要解决的问题：为了获得可以通过减少车载单元的发射天线的数量来降低系统成本的车载通信系统。解决方案：便携式单元检测从车载单元接收的信号的接收信号强度并将其发送到车载单元。车载单元包括驾驶员座椅侧车内发送天线7，辅助驾驶员座椅侧车内发送天线8，行车侧车内发送天线9，选择任何发送天线的发送天线选择器6，控制发送天线选择器6以在不同时间区域中的各个发送天线发送信号的ECU4以及阈值确定型轿厢内部/外部判定部分42，其将从具有预定阈值的便携式单元，以基于每个发射天线的所确定的级确定与接收信号强度对应的级并确定便携式单元所在的区域。版权所有（C）2013，JPO＆INPIT

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