会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明专利
    • Reception device and reception method
    • 接收设备和接收方法
    • JP2014192807A
    • 2014-10-06
    • JP2013068359
    • 2013-03-28
    • Mitsubishi Electric Corp三菱電機株式会社Tohoku Univ国立大学法人東北大学
    • TA TUAN THANHKAMEDA TAKUSUEMATSU KENJITAKAGI SUNAOTSUBOUCHI KAZUOINAGAKI RYUJITSURU MASAOMITANIGUCHI EIJI
    • H04B7/08H04L27/22
    • Y02D70/00Y02D70/442Y02D70/444
    • 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.
    • 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。
    • 3. 发明专利
    • Frequency domain equalization circuit and control method of frequency domain equalization circuit
    • 频域均衡电路和频域均衡电路的控制方法
    • JP2014086912A
    • 2014-05-12
    • JP2012234918
    • 2012-10-24
    • Mitsubishi Electric Corp三菱電機株式会社Tohoku Univ国立大学法人東北大学
    • KOMATSU KAZUHIROKAMEDA TAKUSUEMATSU KENJITAKAGI SUNAOTSUBOUCHI KAZUOINAGAKI RYUJITSURU MASAOMITANIGUCHI EIJI
    • H04B7/005H03H17/02H03H21/00H04B3/10H04J11/00
    • 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.
    • 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
    • Injection-locked oscillation device
    • 注射锁定振荡器件
    • JP2013017067A
    • 2013-01-24
    • JP2011148975
    • 2011-07-05
    • Mitsubishi Electric Corp三菱電機株式会社
    • HAGIWARA TATSUYATSURU MASAOMITANIGUCHI EIJI
    • H03L7/00
    • PROBLEM TO BE SOLVED: To obtain an injection-locked oscillation device for improving phase noise.SOLUTION: An injection-locked oscillation device comprises: power adjustment means 2 for adjusting an output wave of a reference oscillator 1 to be predetermined power; in-phase distribution means 3 for distributing the wave on which the power adjustment is performed; a plurality of injection-locked oscillators 4, each of which receives the distributed wave as input and oscillates at a frequency having natural number times of an input frequency; and in-phase synthesis means 5 for synthesizing each output of the plurality of injection-locked oscillators 4 and outputting the synthesized output. At low detuning frequencies, an output wave of the injection-locked oscillator 4 synchronizes with an output wave of the reference oscillator 1 having a good phase noise characteristic at the low detuning frequencies, which improves phase noise. On the other hand at high detuning frequencies, synthesis of each output wave of the injection-locked oscillators 4 by the in-phase synthesis means 5 improves the phase noise, because each phase noise of the output waves of the injection-locked oscillators 4 has no correlation. Thereby, the phase noise can be improved over entire detuning frequencies of the low detuning frequencies and high detuning frequencies.
    • 要解决的问题:获得用于改善相位噪声的注入锁定振荡装置。 注入锁定振荡装置包括:功率调节装置2,用于将基准振荡器1的输出波调整为预定功率; 用于分配进行功率调整的波的同相分配装置3; 多个注入锁定振荡器4,每个注入锁定振荡器4接收分布波作为输入并以具有输入频率的自然数次的频率振荡; 以及用于合成多个注入锁定振荡器4的每个输出并输出合成输出的同相合成装置5。 在低失谐频率下,注入锁定振荡器4的输出波与低失谐频率具有良好相位噪声特性的基准振荡器1的输出波同步,从而改善了相位噪声。 另一方面,在高失谐频率下,通过同相合成装置5对注入锁定振荡器4的每个输出波的合成改善了相位噪声,因为注入锁定振荡器4的输出波的每个相位噪声具有 无相关性。 因此,可以在低失谐频率和高失谐频率的整个失谐频率上改善相位噪声。 版权所有(C)2013,JPO&INPIT
    • 5. 发明专利
    • High frequency oscillator
    • 高频振荡器
    • JP2012175630A
    • 2012-09-10
    • JP2011038358
    • 2011-02-24
    • Mitsubishi Electric Corp三菱電機株式会社
    • HAGIWARA TATSUYATSURU MASAOMIHAYASHI RYOJI
    • H03B5/12H03B5/18
    • PROBLEM TO BE SOLVED: To provide a high frequency oscillator that increases the output power of a second harmonic without degrading phase noise.SOLUTION: The high frequency oscillator includes: an active element having first to third terminals; first and second reactance circuits connected to the first and second terminals, respectively, and inductive at a desired frequency; a third reactance circuit connected to the third terminal and capacitive at the desired frequency; a fourth reactance circuit connected in parallel between the third terminal of the active element and the third reactance circuit, and having an impedance forming a short circuit at a frequency that is twice the desired frequency; and a fifth reactance circuit connected in parallel between the third terminal of the active element and the third reactance circuit, and having a reactance at the desired frequency having the same absolute value as and the opposite sign to a reactance of the fourth reactance circuit at the desired frequency.
    • 要解决的问题:提供一种在不降低相位噪声的情况下增加二次谐波的输出功率的高频振荡器。 解决方案:高频振荡器包括:有源元件,具有第一至第三端子; 分别连接到第一和第二端子并以期望频率感应的第一和第二电抗电路; 连接到第三端子并以期望频率电容的第三电抗电路; 在所述有源元件的第三端子与所述第三电抗电路之间并联连接的第四电抗电路,并且具有以所需频率的两倍的频率形成短路的阻抗; 以及在有源元件的第三端子和第三电抗电路之间并联连接的第五电抗电路,并且具有在期望频率处的电抗具有与第四电抗电路的电抗相同的绝对值和与之相反的符号 所需频率。 版权所有(C)2012,JPO&INPIT
    • 6. 发明专利
    • High frequency oscillation source
    • 高频振荡源
    • JP2011239127A
    • 2011-11-24
    • JP2010107909
    • 2010-05-10
    • Mitsubishi Electric Corp三菱電機株式会社
    • TSURU MASAOMIHAYASHI RYOJI
    • H03D7/00
    • PROBLEM TO BE SOLVED: To obtain a high frequency oscillation source capable of reducing total phase noise.SOLUTION: A high frequency oscillation source comprises a frequency converter, a first input wave generation circuit and a second input wave generation circuit connected to a first input terminal and a second input terminal of the frequency converter, respectively, and a first output circuit connected to the output terminal of the frequency converter. The first input wave generation circuit and the second input wave generation circuit include a first oscillator and a second oscillator, respectively. The oscillation frequency of the second oscillator is approximately the same as or approximately higher order than the oscillation frequency of the first oscillator. At least one of the first input wave generator circuit or the second input wave generator circuit includes phase shift means or phase shift control means.
    • 要解决的问题:获得能够降低总相位噪声的高频振荡源。 解决方案:高频振荡源包括分别连接到变频器的第一输入端和第二输入端的变频器,第一输入波发生电路和第二输入波生成电路,以及第一输出 电路连接到变频器的输出端子。 第一输入波生成电路和第二输入波生成电路分别包括第一振荡器和第二振荡器。 第二振荡器的振荡频率与第一振荡器的振荡频率大致相同或近似高。 第一输入波发生器电路或第二输入波发生器电路中的至少一个包括相移装置或相移控制装置。 版权所有(C)2012,JPO&INPIT
    • 7. 发明专利
    • Mixer
    • 混合器
    • JP2010148006A
    • 2010-07-01
    • JP2008325727
    • 2008-12-22
    • Mitsubishi Electric Corp三菱電機株式会社
    • TSURU MASAOMIKAWAKAMI KENJIHIEDA MORISHIGE
    • H03D7/02
    • PROBLEM TO BE SOLVED: To provide a mixer for equalizing two input frequencies, and for output of a mixed wave by canceling a double wave of the input frequency. SOLUTION: The mixer includes a first unit mixer and a second unit mixer which are connected to a first output terminal and a second output terminal of a 90° hybrid circuit with the same polarity direction. The first unit mixer includes a first non-linear element and the second unit mixer includes a second non-linear element to each of which outputs from the first output terminal and the second output terminal of the 90° hybrid circuit are input, respectively. The first unit mixer and the second unit mixer frequency-mix signals input from two input terminals of the 90° hybrid circuit, respectively, and respective outputs are combined by a connection means to output from an output terminal. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种用于均衡两个输入频率并且通过消除输入频率的双波来输出混合波的混频器。 解决方案:混频器包括第一单元混频器和第二单元混频器,其连接到具有相同极性方向的90°混合电路的第一输出端子和第二输出端子。 第一单元混合器包括第一非线性元件,并且第二单元混合器包括第二非线性元件,其中分别输入来自90°混合电路的第一输出端和第二输出端的输出。 分别从90°混合电路的两个输入端子输入的第一单元混频器和第二单元混频器混频信号以及相应的输出由连接装置组合以从输出端输出。 版权所有(C)2010,JPO&INPIT
    • 8. 发明专利
    • Frequency divider and high frequency oscillation source
    • 频率分频器和高频振荡源
    • JP2009033503A
    • 2009-02-12
    • JP2007195658
    • 2007-07-27
    • Mitsubishi Electric Corp三菱電機株式会社
    • TSURU MASAOMIMIZUTANI HIROYUKIKAWAKAMI KENJINISHIDA KAZUHIROMIYAZAKI MORIYASU
    • H03K23/58H03B19/00H03K5/00H03L7/08
    • PROBLEM TO BE SOLVED: To obtain a frequency divider by which a plurality of output waves are easily and efficiently acquired. SOLUTION: The frequency divider is provided with: a frequency division circuit 1 of which the number of frequency division is N (N: an integer ≥2) having a first input terminal 2a, first and second output terminals 3a, 3b wherein reversed phase outputs are obtained from the first and the second output terminals 3a, 3b; and a first transmission line 4a connected between the first and the second output terminals 3a, 3b wherein N-frequency division waves of input waves are taken out of at least either of the first or the second output terminals 3a, 3b and N/2-frequency divided waves of the input waves are taken out of a middle point of the first transmission line 4a. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:获得容易且有效地获取多个输出波的分频器。 分频器具有:具有第一输入端子2a的分频数为N(N:整数≥2)的分频电路1,第一和第二输出端子3a,3b,其中 从第一和第二输出端子3a,3b获得反相输出; 以及连接在第一和第二输出端子3a,3b之间的第一传输线4a,其中输入波的N分频波从第一或第二输出端子3a,3b和N / 2-2中的至少一个中取出, 从第一传输线4a的中点取出输入波的分频波。 版权所有(C)2009,JPO&INPIT
    • 9. 发明专利
    • Multi-frequency oscillation device
    • 多频振荡器件
    • JP2007322260A
    • 2007-12-13
    • JP2006153265
    • 2006-06-01
    • Mitsubishi Electric Corp三菱電機株式会社
    • KAWAKAMI KENJITSURU MASAOMI
    • G01S7/28G01S7/35
    • PROBLEM TO BE SOLVED: To provide a multi-frequency oscillation device capable of outputting stably a plurality of frequencies having narrow intervals. SOLUTION: This device is equipped with reference oscillation sources 1 to the number of n (n is an integer of two or more) having each different frequency f1-fn; a selection switch 2 for selecting and switching successively some one signal from the reference oscillation sources 1 to the number of n, and outputting it; a local oscillation source 4 for outputting a local oscillation frequency signal; and a mixer 3 for inputting a signal selected and switched successively by the selection switch 2 as an IF signal, inputting the local oscillation frequency signal output from the local oscillation source 4 as an LO wave, mixing the IF signal switched and selected successively with the LO signal, and outputting an RF signal. COPYRIGHT: (C)2008,JPO&INPIT
    • 解决的问题:提供能够稳定地输出具有窄间隔的多个频率的多频振荡装置。 解决方案:该装置配备有具有各个不同频率f1-fn的n个(n为2以上的整数)的参考振荡源1, 选择开关2,用于从参考振荡源1连续地选择和切换一个信号到n的数量,并将其输出; 用于输出本地振荡频率信号的本地振荡源4; 以及混合器3,用于输入由选择开关2连续选择和切换的信号作为IF信号,将从本地振荡源4输出的本地振荡频率信号作为LO波输入,将经连续选择的IF信号与 LO信号,并输出RF信号。 版权所有(C)2008,JPO&INPIT