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1. 发明专利

JP2005236555A Radio terminal, radio base station, and network system using same 审中-公开
标题翻译：无线电终端，无线基站和使用该网络的网络系统
公开(公告)号：JP2005236555A
公开(公告)日：2005-09-02
申请号：JP2004041747
申请日：2004-02-18
申请人： Japan Telecom Co Ltd , Tohoku Univ , 国立大学法人東北大学 , 日本テレコム株式会社
发明人： TSUBOUCHI KAZUO , ISODA YOJI , NAKASE HIROYUKI , KAMEDA TAKU , KIM SUNG-KWON , YAMAGATA FUMIHIRO , KATAYAMA TAKEHIKO
IPC分类号： H04L12/46 , H04W36/02 , H04Q7/22
摘要： PROBLEM TO BE SOLVED: To realize a handover free of a momentary break and to realize communication free of quality deterioration by efficiently transferring packets which are buffered during transfer.
SOLUTION: A radio terminal has a wireless interface which can be connected to a radio base station. Provided is a movement notification means of transmitting a movement notice packet to a radio base station which is connected before a handover through a radio base station which is connected before the handover when the handover is carried out.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：实现无瞬时中断的切换，并且通过有效地传送在传送期间被缓冲的分组来实现没有质量劣化的通信。解决方案：无线电终端具有可连接到无线电基站的无线接口。提供了一种移动通知装置，其将移动通知分组发送到在切换之前连接的无线基站之前连接的无线基站，所述无线基站在切换执行之前连接。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2014168159A Modulator 审中-公开
标题翻译：调制器
公开(公告)号：JP2014168159A
公开(公告)日：2014-09-11
申请号：JP2013039314
申请日：2013-02-28
申请人： Tohoku Univ , 国立大学法人東北大学
发明人： SUEMATSU KENJI , KAMEDA TAKU , TAKAGI SUNAO , TSUBOUCHI KAZUO , WADA TAIRA
IPC分类号： H03M1/10 , H03D7/14 , H03M1/74
摘要： PROBLEM TO BE SOLVED: To provide a modulator which can perform RF modulation with high accuracy, while suppressing generation of distortion.SOLUTION: A digital/analog conversion unit 12 has a pair of switches 21 provided in parallel for each bit, and is configured so that the current output is weighted depending on the bit, and an analog current signal is generated by controlling the switches 21 based on a digital signal. The digital/analog conversion unit 12 is configured so that a certain percentage of current of a corresponding current output flows regardless of the on/off of each switch 21, for all bits, and an analog current signal corresponding to the minimum value of the digital signal does not become zero. A local oscillation switch section 13 is configured to output the analog current signal while converting to a high frequency signal based on a local oscillation signal of high frequency band.
摘要翻译：要解决的问题：提供一种可以高精度地进行RF调制的调制器，同时抑制失真的产生。解决方案：数字/模拟转换单元12具有为每个位并行提供的一对开关21，并且被配置为根据该位对电流输出进行加权，并且通过基于数字信号控制开关21来产生模拟电流信号。数字/模拟转换单元12被配置为使得相应的电流输出的一定百分比的电流不管每个开关21的导通/关断如何，对于所有位流动，并且模拟电流信号对应于数字信号不会变为零。本地振荡开关部分13被配置为基于高频带的本地振荡信号转换为高频信号而输出模拟电流信号。

3. 发明专利

JP2014086912A Frequency domain equalization circuit and control method of frequency domain equalization circuit 有权
标题翻译：频域均衡电路和频域均衡电路的控制方法
公开(公告)号：JP2014086912A
公开(公告)日：2014-05-12
申请号：JP2012234918
申请日：2012-10-24
申请人： Mitsubishi Electric Corp , 三菱電機株式会社 , Tohoku Univ , 国立大学法人東北大学
发明人： KOMATSU KAZUHIRO , KAMEDA TAKU , SUEMATSU KENJI , TAKAGI SUNAO , TSUBOUCHI KAZUO , INAGAKI RYUJI , TSURU MASAOMI , TANIGUCHI EIJI
IPC分类号： H04B7/005 , H03H17/02 , H03H21/00 , H04B3/10 , H04J11/00
摘要： PROBLEM TO BE SOLVED: To obtain a frequency domain equalization circuit in which the numbers of packaging circuits of FFT circuits and IFFT circuits are reduced within such a range that desired throughput can be achieved.SOLUTION: The frequency domain equalization circuit comprises: a channel estimation circuit which estimates a channel with frequency distortion while including one FFT/IFFT duplexer circuit, at N points (N is a positive integer) for channel estimation, in which selectors are connected at an input side and an output side and input and output can be switched, respectively; a data equalization circuit which performs equalization processing of a data signal in accordance with noise of a channel estimated by the channel estimation circuit while including one FFT circuit at M points (M is a positive integer and N≤M) for data equalization and one IFFT circuit at M points for data equalization in which selectors are connected at an input side and an output side and input and output can be switched, respectively; and a control section which connects the selectors and performs switching control on switching of FFT and IFFT in the FFT/IFFT duplexer circuit.
摘要翻译：要解决的问题：获得频域均衡电路，其中FFT电路和IFFT电路的封装电路的数量在可以实现期望的吞吐量的范围内减小。解决方案：频域均衡电路包括：信道估计在包括一个FFT / IFFT双工器电路的频率失真的信道中，在用于信道估计的N个点（N是正整数）处，其中选择器连接在输入侧，输入端和输入端可以是分别切换; 一种数据均衡电路，其根据由信道估计电路估计的信道的噪声执行数据信号的均衡处理，同时包括用于数据均衡的M个点（M为正整数和N≤M）的一个FFT电路和一个IFFT 在M点的电路分别用于数据均衡，其中选择器连接在输入侧，输出端和输入和输出分别被切换; 以及连接选择器的控制部，对FFT / IFFT双工器电路中的FFT和IFFT的切换进行切换控制。

4. 发明专利

JP2010016702A High frequency circuit 审中-公开
标题翻译：高频电路
公开(公告)号：JP2010016702A
公开(公告)日：2010-01-21
申请号：JP2008175919
申请日：2008-07-04
申请人： Mitsubishi Electric Corp , Tohoku Univ , 三菱電機株式会社 , 国立大学法人東北大学
发明人： MIYAZAKI MORIYASU , KAMEDA TAKU , TAKAGI SUNAO , TSUBOUCHI KAZUO , OSHIMA SHOICHI
IPC分类号： H03H7/21 , H03D7/14 , H03H7/48
摘要： PROBLEM TO BE SOLVED: To obtain a high frequency circuit including a wide-band and high-accuracy 90° phase distribution function wherein a phase error generated in a 90° phase distributor can be eliminated when distributing at 90° a phase of as local oscillation signal of a quadrature modulator or a quadrature demodulator.
SOLUTION: The high frequency circuit includes: a 90° phase distributor 11 to which a sine wave signal is input and which generates a first output signal A having the same frequency as that of the sine wave signal and a second output signal B having a phase difference at 90° from the sine wave signal; an adder circuit 12 which performs addition processing on the first and second output signals A and B to output results thereof from an output terminal 15; and a subtractor circuit 13 which performs subtraction processing on the first and second output signals A and B to output the results thereof from an output terminal 16.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了获得包括宽带和高精度90°相位分布函数的高频电路，其中在90°相位分配器中产生的相位误差可以在90°相位分布时被消除作为正交调制器或正交解调器的本地振荡信号。解决方案：高频电路包括：输入正弦波信号的90°相位分配器11，并产生与正弦波信号相同频率的第一输出信号A和第二输出信号B 具有与正弦波信号成90°的相位差; 对第一和第二输出信号A和B执行加法处理以从输出端子15输出结果的加法器电路12; 以及减法器电路13，对第一和第二输出信号A和B执行减法处理，以从输出端子16输出其结果。（C）2010年，JPO和INPIT

5. 发明专利

JP2008017415A Wireless communication system 有权
标题翻译：无线通信系统
公开(公告)号：JP2008017415A
公开(公告)日：2008-01-24
申请号：JP2006189285
申请日：2006-07-10
申请人： Mitsubishi Electric Corp , Tohoku Univ , 三菱電機株式会社 , 国立大学法人東北大学
发明人： TSUBOUCHI KAZUO , TAKAGI SUNAO , NAKASE HIROYUKI , KAMEDA TAKU , OSHIMA SHOICHI , FUJIMURA AKINORI , SOGABE YASUSHI , ISHIZU FUMIO
IPC分类号： H04J1/00 , H04B7/06 , H04B7/12
摘要： 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
摘要翻译：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

6. 发明专利

JP2005236064A Signal transmission pair wiring and its manufacturing method 审中-公开
标题翻译：信号传输对线及其制造方法
公开(公告)号：JP2005236064A
公开(公告)日：2005-09-02
申请号：JP2004043819
申请日：2004-02-20
申请人： Matsushita Electric Ind Co Ltd , Tohoku Univ , 国立大学法人東北大学 , 松下電器産業株式会社
发明人： NAKAGIRI YASUSHI , OGURA TETSUYOSHI , OCHI SHOZO , TOMEKAWA SATORU , TSUBOUCHI KAZUO , ISODA YOJI , NAKASE HIROYUKI , KAMEDA TAKU , FUJII TAKASHI , OSHIMA SHOICHI
IPC分类号： H05K1/02 , H01L23/12 , H01P3/04 , H05K3/46
摘要： PROBLEM TO BE SOLVED: To solve the problem that in a conventional signal transmission line using a single line, characteristics depending on the shape of a line are not good, and especially when vias intervene in a longitudinal direction, a high frequency characteristic deteriorates depending on a frequency. SOLUTION: In signal transmission pair wiring wherein its multilayers are connected with vias and a plurality of patternized metal layers and a dielectric layer are laminated, the signal transmission wiring with a good transmission characteristic which does not contain a characteristics error till tens of GHz high frequency region is obtained by controlling the diameter and the gap of the via which connect a plurality of wiring where the metal layers are patternized, and by using the signal transmission pair wiring characterized by arranging so that characteristic impedance may serve as a fixed value. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题为了解决在使用单线的传统信号传输线中的问题，根据线的形状的特性不好，特别是当通孔插入纵向时，高频特性根据频率而变差。解决方案：在其多层连接有通孔的信号传输对配线中，多层图案化的金属层和电介质层被层压，具有良好传输特性的信号传输线路，其特性误差不超过数十通过控制将金属层图案化的多个布线连接的通孔的直径和间隙，并且通过使用特征在于使特性阻抗可以用作固定值的信号传输对布线来获得GHz高频区域。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2012019425A Radio communication system, and transmission device and reception device 审中-公开
标题翻译：无线电通信系统和传输设备和接收设备
公开(公告)号：JP2012019425A
公开(公告)日：2012-01-26
申请号：JP2010156389
申请日：2010-07-09
申请人： Mitsubishi Electric Corp , Tohoku Univ , 三菱電機株式会社 , 国立大学法人東北大学
发明人： TANIGUCHI EIJI , HIRANO YOSHIHITO , SHIMOZAWA MITSUHIRO , TAKAGI SUNAO , KAMEDA TAKU , SUEMATSU KENJI , TSUBOUCHI KAZUO
IPC分类号： H04J1/00 , H04B7/12 , H04J11/00 , H04W28/18
摘要： PROBLEM TO BE SOLVED: To provide a radio communication system which communicates adaptively in an optimal radio mode depending on a propagation path state.SOLUTION: A radio communication system comprises: a transmission device 1 which switches multiple radio modes; and a reception device 2 which receives multiple radio modes simultaneously. The transmission device 1 comprises: a transmission circuit 5; and a switching control circuit 6. The transmission circuit 5 includes a data modulation circuit 39 which converts a transmission signal 102 of a data sequence into a transmission signal 103 of a symbol sequence, a plurality of modulation circuits 3a-3k corresponding to respective radio modes, and a switching circuit 4 which selects a modulation circuit. The reception device 2 comprises a reception circuit 8 and a propagation path estimation evaluation circuit 9. The reception circuit 8 includes a plurality of demodulation circuits 7a-7k corresponding to respective radio modes, and a plurality of data demodulation circuits 40a-40k. The switching control circuit 6 controls the switching circuit 4 to switch radio modes of a transmission signal based on control information 106 from the propagation path estimation evaluation circuit 9.
摘要翻译：要解决的问题：提供一种根据传播路径状态以最佳无线电模式自适应地进行通信的无线电通信系统。解决方案：无线电通信系统包括：切换多种无线电模式的传输设备1; 以及同时接收多个无线模式的接收装置2。发送装置1包括：发送电路5; 发送电路5包括将数据序列的发送信号102转换为符号序列的发送信号103的数据调制电路39，与各个无线模式对应的多个调制电路3a〜3k 以及选择调制电路的切换电路4。接收装置2包括接收电路8和传播路径估计评估电路9.接收电路8包括与各个无线电模式对应的多个解调电路7a-7k和多个数据解调电路40a-40k。切换控制电路6控制切换电路4，根据来自传播路径估计评估电路9的控制信息106切换发送信号的无线模式。（C）2012，JPO＆INPIT

8. 发明专利

JP2009194722A Communication device 有权
标题翻译：通信设备
公开(公告)号：JP2009194722A
公开(公告)日：2009-08-27
申请号：JP2008034763
申请日：2008-02-15
申请人： Mitsubishi Electric Corp , Tohoku Univ , 三菱電機株式会社 , 国立大学法人東北大学
发明人： NAKASE HIROYUKI , GHEORGHIU VALENTIN , KAMEDA TAKU , TAKAGI SUNAO , TSUBOUCHI KAZUO , ADACHI FUMIYUKI , MIYAZAKI MORIYASU
IPC分类号： H04B7/005 , H04B1/16 , H04B3/06
摘要： 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
摘要翻译：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

9. 发明专利

JP2007295257A Noise power calculation means and s/n estimation means 审中-公开
标题翻译：噪声功率计算方法和S / N估计方法
公开(公告)号：JP2007295257A
公开(公告)日：2007-11-08
申请号：JP2006120648
申请日：2006-04-25
申请人： Mitsubishi Electric Corp , Tohoku Univ , 三菱電機株式会社 , 国立大学法人東北大学
发明人： FUJIMURA AKINORI , TAKAGI SUNAO , NAKASE HIROYUKI , NAGAI YUKIMASA , SOGABE YASUSHI , TSUBOUCHI KAZUO
IPC分类号： H04J11/00
摘要： 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
摘要翻译：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

10. 发明专利

JP2014192807A 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：JP2014192807A
公开(公告)日：2014-10-06
申请号：JP2013068359
申请日：2013-03-28
申请人： Mitsubishi Electric Corp , 三菱電機株式会社 , Tohoku Univ , 国立大学法人東北大学
发明人： TA TUAN THANH , KAMEDA TAKU , SUEMATSU KENJI , TAKAGI SUNAO , TSUBOUCHI KAZUO , INAGAKI RYUJI , TSURU MASAOMI , TANIGUCHI EIJI
IPC分类号： H04B7/08 , H04L27/22
CPC分类号： Y02D70/00 , Y02D70/442 , Y02D70/444
摘要： PROBLEM TO BE SOLVED: To provide a reception device and a reception method capable of reducing costs, power consumption and signal processing amount.SOLUTION: A reception device comprises: a plurality of LPF 21, installed in association with I channel signals and Q channel signals to be output from a plurality of BB phase shifters 13, for allowing only low frequency components of a predetermined frequency or less to pass; a plurality of low speed ADC 22, respectively connected to the plurality of LPF 21, for converting the I channel signals and the Q channel signals of the low frequency components into digital signals; and a DSP 23 for extracting a phase difference between a plurality of antenna elements from the outputs of the plurality of low speed ADC 22, and for controlling the plurality of BB phase shifters 13 such that the phases of the I channel signals and the Q channel signals to be output from the plurality of BB phase shifters 13 are aligned.
摘要翻译：要解决的问题：提供能够降低成本，功耗和信号处理量的接收装置和接收方法。解决方案：接收装置包括：多个LPF 21，其与I信道信号和Q信道信号相关联地安装从多个BB移相器13输出，仅允许预定频率或更小频率的低频分量通过; 分别连接到多个LPF21的多个低速ADC22，用于将低频分量的I信道信号和Q信道信号转换为数字信号; 以及DSP23，用于从多个低速ADC22的输出中提取多个天线元件之间的相位差，并且用于控制多个BB移相器13，使得I通道信号和Q通道的相位从多个BB移相器13输出的信号被对准。

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