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    • 1. 发明专利
    • Communication apparatus
    • 通讯设备
    • JP2007074216A
    • 2007-03-22
    • JP2005257744
    • 2005-09-06
    • Mitsubishi Electric CorpTohoku Univ三菱電機株式会社国立大学法人東北大学
    • YAMAGUCHI ATSUYOSHIKAMEDA TAKUNAKASE HIROYUKITAKAGI SUNAOTSUBOUCHI KAZUOISODA YOJI
    • H04L12/28H04B1/59H04B5/02H04B7/26
    • PROBLEM TO BE SOLVED: To provide a communication apparatus capable of performing highly efficient and highly accurate anticollision communication by shortening the recognition time of a plurality of communication devices. SOLUTION: A communication control apparatus 10 comprises: a flag request means 11 for transmitting a command for receiving temporary IDs from a plurality of communication devices 20; a flag identification means 12 for receiving flag responses from the plurality of communication devices 20 and specifying the plurality of communication devices 20 existing in a communicable area; an ID request means 13 for transmitting a command for receiving real IDs from the specified plurality of communication devices 20; and an ID identification means 14 for receiving ID responses from the specified plurality of communication devices 20 and specifying the real IDs of the plurality of communication devices 20 existing in the communicable area. Each of the plurality of communication devices 20 comprises a flag response means 21 for returning a flag response generated at random to the communication control apparatus 10 and an ID response means 22 for returning ID to the communication control apparatus 10. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供能够通过缩短多个通信设备的识别时间来执行高效且高度准确的防冲突通信的通信设备。 解决方案:通信控制装置10包括:标志请求装置11,用于从多个通信装置20发送用于接收临时ID的命令; 标识识别装置12,用于从多个通信装置20接收标志响应并指定存在于可通信区域中的多个通信装置20; ID请求装置13,用于从指定的多个通信装置20发送用于接收实际ID的命令; 以及ID识别装置14,用于从指定的多个通信设备20接收ID响应并指定存在于可通信区域中的多个通信设备20的实际ID。 多个通信装置20中的每一个包括用于将随机生成的标志响应返回给通信控制装置10的标志响应装置21和用于将ID返回到通信控制装置10的ID响应装置22.< COPYRIGHT C)2007,JPO&INPIT
    • 2. 发明专利
    • Communication device
    • 通信设备
    • JP2009194722A
    • 2009-08-27
    • JP2008034763
    • 2008-02-15
    • Mitsubishi Electric CorpTohoku Univ三菱電機株式会社国立大学法人東北大学
    • NAKASE HIROYUKIGHEORGHIU VALENTINKAMEDA TAKUTAKAGI SUNAOTSUBOUCHI KAZUOADACHI FUMIYUKIMIYAZAKI MORIYASU
    • H04B7/005H04B1/16H04B3/06
    • PROBLEM TO BE SOLVED: To obtain a communication device capable of obtaining excellent characteristics by correcting device distortion and propagation distortion.
      SOLUTION: The communication device for reception includes: a high frequency demodulation circuit 2 for converting a received signal into a baseband signal; an analog/digital conversion circuit 3 for converting the baseband signal converted by the high frequency demodulation circuit into a digital signal; and a baseband demodulation circuit 5 which demodulates the baseband signal from the digital signal converted by the analog/digital conversion circuit and outputs the demodulated baseband signal, wherein, between the analog/digital conversion circuit 3 and the baseband demodulation circuit 5, a frequency equalization circuit 4 for reception is provided which corrects device distortion and propagation distortion.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了获得能够通过校正装置失真和传播失真而获得优异特性的通信装置。 解决方案:用于接收的通信装置包括:用于将接收信号转换为基带信号的高频解调电路2; 用于将由高频解调电路转换的基带信号转换为数字信号的模拟/数字转换电路3; 基带解调电路5,对来自模拟/数字转换电路的数字信号进行基带信号的解调,并输出解调后的基带信号,在模/数转换电路3与基带解调电路5之间,进行频率均衡 提供用于接收的电路4,其校正设备失真和传播失真。 版权所有(C)2009,JPO&INPIT
    • 3. 发明专利
    • Noise power calculation means and s/n estimation means
    • 噪声功率计算方法和S / N估计方法
    • JP2007295257A
    • 2007-11-08
    • JP2006120648
    • 2006-04-25
    • Mitsubishi Electric CorpTohoku Univ三菱電機株式会社国立大学法人東北大学
    • FUJIMURA AKINORITAKAGI SUNAONAKASE HIROYUKINAGAI YUKIMASASOGABE YASUSHITSUBOUCHI KAZUO
    • H04J11/00
    • PROBLEM TO BE SOLVED: To obtain a power noise calculation means which is capable of calculating a noise power N by simpler operations, while keeping the equivalent performance level as that of the conventional means. SOLUTION: A noise power calculation means 30 which calculates the noise power of a receiving signal, on the basis of the receiving signal, having a frame configuration including K fixed patterns (K is an integer equal to or larger than 2) each of which being constituted of a data sequence of J samples (J is an integer equal to or larger than 1), includes a subtraction means 11, which outputs a result of subtraction between data of n-th samples (n is an integer equal to or larger than 1 and equal to or smaller than J) of two fixed patterns from among K fixed patterns, as difference data; an L-th power means which outputs a result, obtaining by raising the difference data to the L-th power (L is an integer equal to or larger than 2), as difference power data; and an integration means 13 which outputs an integration result, obtained by accumulating difference power data with respect to J samples, as the noise power. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了获得能够通过更简单的操作来计算噪声功率N的功率噪声计算装置,同时保持与常规装置相同的性能水平。 解决方案:噪声功率计算装置30,其基于接收信号计算接收信号的噪声功率,该接收信号具有包括K个固定模式(K是等于或大于2的整数)的帧配置 其由J个采样的数据序列(J是1以上的整数)构成,包括:减法装置11,输出第n个采样的数据之间的减法结果(n为等于 或大于1且等于或小于J)的两个固定图案作为差分数据; 输出结果的L电力单元,将差分数据提高为L次幂(L为2以上的整数)获得,作为差分功率数据; 以及积分装置13,其输出通过累积关于J个采样的差分功率数据获得的积分结果作为噪声功率。 版权所有(C)2008,JPO&INPIT
    • 4. 发明专利
    • Balun
    • BALUN
    • JP2008219081A
    • 2008-09-18
    • JP2007049366
    • 2007-02-28
    • Mitsubishi Electric CorpTohoku Univ三菱電機株式会社国立大学法人東北大学
    • TSUBOUCHI KAZUOTAKAGI SUNAONAKASE HIROYUKIKAMEDA TAKUISODA YOJINAKAJIMA KENSUKE
    • H01P5/10H01L21/822H01L27/04
    • PROBLEM TO BE SOLVED: To reduce size, and improve performance, such as broadband performance. SOLUTION: A first wiring pattern 200 comprises terminals A, C and a first C-shaped line pattern 2 connecting the terminals A, C. A second wiring pattern 300 comprises terminals D, F and a second C-shaped line pattern 3 connecting the terminals D, F. The first and second line patterns 2, 3 are laminated via a planar dielectric 1 so that openings do not overlap while being shifted each other by 180°. The terminals A, C are connected to a first transmission line 4, and the terminals D, F are connected to second and third transmission lines 6, 7, respectively. Nearly the center section of the first line pattern 2 is electrically connected to a ground conductor 5 of the second and third transmission lines 6, 7 by a connection circuit 8. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:减小大小,提高性能,如宽带性能。 解决方案:第一布线图案200包括端子A,C和连接端子A,C的第一C形线图案2.第二布线图案300包括端子D,F和第二C形线图案3 连接端子D,F。第一线图案2,3和第二线图案3通过平面电介质1层叠,使得开口不重叠,同时彼此偏移180°。 端子A,C连接到第一传输线4,端子D,F分别连接到第二和第三传输线6,7。 第一线路图形2的几乎中心部分通过连接电路8电连接到第二和第三传输线6,7的接地导体5.版权所有(C)2008,JPO&INPIT
    • 6. 发明专利
    • Demodulation timing generation circuit and demodulator
    • 解调时序生成电路和解调器
    • JP2006238367A
    • 2006-09-07
    • JP2005053834
    • 2005-02-28
    • Mitsubishi Electric CorpTohoku Univ三菱電機株式会社国立大学法人東北大学
    • HIRAI HIROAKIFUJIMURA AKINORITSUBOUCHI KAZUOISODA YOJINAKASE HIROYUKI
    • H04J11/00H04L7/08
    • PROBLEM TO BE SOLVED: To provide a demodulation timing generation circuit which can accurately and exactly generate timing for demodulating received data even under various reception situations, and a demodulator using the circuit. SOLUTION: The demodulation timing generation circuit comprises: an autocorrelation operation part S1 for performing autocorrelation operation for an inputted time signal; a cross-correlation operation part S2 for performing cross-correlation operation for an inputted time signal; and a synchronizing position decision part S3 which detects a timing synchronizing position using an autocorrelation operation result and an cross-correlation operation result from the autocorrelation operation unit and the cross-correlation operation unit and outputs a fast Fourier transform timing pulse. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供即使在各种接收情况下也可以准确且准确地生成用于解调接收数据的定时的解调定时产生电路,以及使用该电路的解调器。 解决方案:解调定时产生电路包括:用于对输入的时间信号执行自相关操作的自相关操作部分S1; 用于对输入的时间信号进行互相关运算的互相关运算部S2; 以及同步位置判定部S3,其使用自相关运算结果和自相关运算部和互相关运算部的互相运算结果来检测定时同步位置,并输出快速傅里叶变换定时脉冲。 版权所有(C)2006,JPO&NCIPI
    • 7. 发明专利
    • Wireless communication system
    • 无线通信系统
    • JP2008017415A
    • 2008-01-24
    • JP2006189285
    • 2006-07-10
    • Mitsubishi Electric CorpTohoku Univ三菱電機株式会社国立大学法人東北大学
    • TSUBOUCHI KAZUOTAKAGI SUNAONAKASE HIROYUKIKAMEDA TAKUOSHIMA SHOICHIFUJIMURA AKINORISOGABE YASUSHIISHIZU FUMIO
    • H04J1/00H04B7/06H04B7/12
    • PROBLEM TO BE SOLVED: To obtain a wireless communication system that has a wireless transmission device, which is provided with a highly-efficient amplifier and facilitates its configuration, and a wireless receiver.
      SOLUTION: The wireless transmission device 10 is provided with a serial-parallel converter 11, a constant envelope modulator 12 and a D/A converter 13 which modulate a digital signal of each channel to a constant envelope modulated signal respectively so as to convert the digital signal into an analog signal, a frequency converter 14 for converting the signal of each channel into a different carrier frequency, the amplifier 15 for amplifying the constant envelope modulated signal of each channel, and an antenna 19 that wirelessly transmits the amplified signal into space for each channel. The wireless receiver 20 is provided with an antenna 21, a demultiplexer 22 for demultiplexing a received signal, a frequency converter 23 and an A/D converter 24 which convert the signal of each channel into a baseband frequency so as to convert the signal into the digital signal, a constant envelope demodulator 25 for demodulating the constant envelop demodulated signal of each channel, and a parallel-serial converter 26 that restores the original input digital signal from the digital signal demodulated for each channel.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了获得具有设置有高效放大器并且便于其配置的无线传输设备的无线通信系统和无线接收器。 解决方案:无线传输设备10设置有串行 - 并行转换器11,恒定包络调制器12和D / A转换器13,其分别将每个通道的数字信号调制到恒定包络调制信号,以便 将数字信号转换成模拟信号,用于将每个信道的信号转换成不同载波频率的频率转换器14,用于放大每个信道的恒定包络调制信号的放大器15以及无线发送放大信号的天线19 进入每个通道的空间。 无线接收机20设置有天线21,用于解复用接收信号的解复用器22,频率转换器23和A / D转换器24,其将每个信道的信号转换为基带频率,以将信号转换为 数字信号,用于解调每个通道的恒定包络解调信号的恒定包络解调器25以及从为每个通道解调的数字信号恢复原始输入数字信号的并行串行转换器26。 版权所有(C)2008,JPO&INPIT
    • 9. 发明专利
    • Radio communications terminal unit and telecommunication network program
    • 无线电通信终端单元和电信网络计划
    • JP2009038653A
    • 2009-02-19
    • JP2007202094
    • 2007-08-02
    • Miyagi PrefectureSoftbank Telecom CorpTohoku Univソフトバンクテレコム株式会社国立大学法人東北大学宮城県
    • ASANO YASUYOSHIYAMAZAKI YOSHIHARUIIZUKA NOBORUYAMAGATA FUMIHIROKAMEDA TAKUNAKASE HIROYUKITAKAGI SUNAOTSUBOUCHI KAZUOOGUMA HIROSHI
    • H04W76/02
    • PROBLEM TO BE SOLVED: To provide a radio communication terminal device wherein new development of a new radio communication card is unnecessary, an existing network facility can be utilized with a simplified construction and with a low cost, and different kind radio network are automatically changeable without depending on a kind of a radio network.
      SOLUTION: The radio terminal device includes a plurality of radio communication means for performing communication with information processing apparatus via a plurality of different kind radio communication systems and continuously performing communication via the different kind communication system by switching the plurality of radio communication means. In the radio communication terminal device, it includes a socket function part for switching and connecting applications and a plurality of networks set corresponding to the plurality of the radio communication means and switches a plurality of radio communication means used when the radio communication terminal device performs communication with the information processing apparatus using the socket function part.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了提供一种无线电通信终端装置,其中不需要新的无线电通信卡的新开发,可以以简单的结构和低成本利用现有的网络设施,并且不同种类的无线电网络 可以自动更改,而不依赖于无线电网络的种类。 解决方案:无线终端装置包括多个无线电通信装置,用于经由多个不同种类的无线电通信系统执行与信息处理装置的通信,并且通过切换多个无线电通信装置来连续地执行通过不同种类的通信系统的通信 。 在无线通信终端装置中,包括用于切换和连接应用的插座功能部分和与多个无线电通信装置相对应的多个网络集合,并且切换当无线电通信终端装置执行通信时使用的多个无线电通信装置 信息处理装置使用套接字功能部分。 版权所有(C)2009,JPO&INPIT
    • 10. 发明专利
    • Radio communication system employing directivity-controllable antenna, and receiving apparatus therefor
    • 无线电通信系统采用方向性控制天线,并接收其设备
    • JP2010157944A
    • 2010-07-15
    • JP2008335863
    • 2008-12-31
    • Tohoku Univ国立大学法人東北大学
    • NAKASE HIROYUKIKATO SHUZOSAWADA HIROKAZU
    • H04B7/10H04B7/08H04W88/02
    • PROBLEM TO BE SOLVED: To provide a radio communication system including a directivity-controllable antenna, and a receiving apparatus therefor which perform communication on an appropriate communication path and even when one of communication paths is shut out by an obstacle, stably perform transmission/reception without interruption by switching the communication path to another communication path.
      SOLUTION: The receiving apparatus includes: an appropriate path selecting means for selecting an appropriate signal wave communication path; and an antenna control section which turns directivity of a directional antenna toward the appropriate communication path selected by the appropriate path selecting means and causes the directional antenna to receive a signal wave passed on the appropriate communication path. The appropriate path selecting means always measures received power and delay dispersion of a plurality of signal waves including the signal wave being received at present and selects the appropriate signal wave communication path on the basis of the measured received power and delay dispersion and the antenna control section operates so as to cause the directional antenna to continuously receive signal waves having passed on the appropriate communication path.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了提供一种包括方向性可控天线及其接收装置的无线电通信系统,其在适当的通信路径上进行通信,并且即使当障碍物中的一个通信路径被阻止时,也可以稳定地执行 通过将通信路径切换到另一通信路径来发送/接收而不中断。 解决方案:接收装置包括:适当的路径选择装置,用于选择适当的信号波通信路径; 以及天线控制部分,其将定向天线的方向性转向由适当的路径选择装置选择的适当的通信路径,并使定向天线接收通过适当的通信路径的信号波。 适当的路径选择装置总是测量包括当前正在接收的信号波的多个信号波的接收功率和延迟色散,并且基于测量的接收功率和延迟色散选择适当的信号波通信路径,天线控制部分 操作以使定向天线连续地接收已经通过适当的通信路径的信号波。 版权所有(C)2010,JPO&INPIT