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1. 发明授权

EP2838234B1 SIGNAL TRANSMISSION SYSTEM 有权
公开(公告)号：EP2838234B1
公开(公告)日：2019-08-14
申请号：EP13776218.3
申请日：2013-03-19
申请人： Mitsubishi Electric Corporation
发明人： TAJIMA, Kenichi , KAWAKAMI, Kenji , HIRAI, Akihito , HIRAMINE, Masanobu
IPC分类号： H04L25/49 , H03M5/12

2. 发明公开

EP2838234A1 SIGNAL TRANSMISSION DEVICE 审中-公开
标题翻译：信号传输装置
公开(公告)号：EP2838234A1
公开(公告)日：2015-02-18
申请号：EP13776218.3
申请日：2013-03-19
申请人： Mitsubishi Electric Corporation
发明人： TAJIMA, Kenichi , KAWAKAMI, Kenji , HIRAI, Akihito , HIRAMINE, Masanobu
IPC分类号： H04L25/49 , H03M5/12
CPC分类号： H04L25/4902 , H03M5/12
摘要： A signal transmission system has a modulation signal converter 1 that generates a modulation signal using a Manchester code with a duty ratio of 50% in accordance with transmission data; a clock generator 6 that generates a clock with the amount of delay with respect to the rising or falling edge of the modulation signal; and a data detector 5 that generates received data by sampling the modulation signal in synchronization with the clock. Since the modulation signal converter 1 generates the modulation signal by combining the Manchester code with the duty ratio of 50%, its duty ratio is always 50% independently of the transmission data, thereby preventing the DC offset of the modulation signal on the receiving side. Accordingly, it offers an advantage of achieving good communication quality with a simple circuit configuration without producing the DC offset in the modulation signal on the receiving side.
摘要翻译：信号传输系统具有调制信号转换器1，其根据传输数据使用占空比为50％的曼彻斯特码生成调制信号; 时钟发生器6，其产生相对于调制信号的上升沿或下降沿具有延迟量的时钟; 以及数据检测器5，其通过与时钟同步地对调制信号进行采样来生成接收数据。由于调制信号转换器1通过组合占空比为50％的曼彻斯特码来产生调制信号，所以其占空比总是与发送数据无关地为50％，由此防止接收侧的调制信号的DC偏移。相应地，它具有以简单的电路配置实现良好的通信质量而不在接收侧的调制信号中产生DC偏移的优点。

3. 发明公开

EP3896465A1 FREQUENCY DETECTION CIRCUIT 审中-公开
公开(公告)号：EP3896465A1
公开(公告)日：2021-10-20
申请号：EP19911540.3
申请日：2019-01-22
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： WADA, Osamu , TAJIMA, Kenichi
IPC分类号： G01R23/02 , G01R13/34 , G01R23/16
摘要： Conventional frequency detection circuits have a disadvantage that the circuit scale increases as the frequency of a reception signal to be detected increases.
A frequency detection circuit of the present invention includes: a first signal source for outputting a first clock signal; a second signal source for outputting a second clock signal having the same frequency as but a different phase from those of the first clock signal; a first sample hold circuit for undersampling a reception signal using the first clock signal; a second sample hold circuit for undersampling the reception signal using the second clock signal; and a frequency calculating circuit for calculating the frequency of the reception signal using a phase difference between output signals of the first sample hold circuit and the second sample hold circuit.

4. 发明授权

EP3410602B1 PULSE SHIFT CIRCUIT AND FREQUENCY SYNTHESIZER 有权
公开(公告)号：EP3410602B1
公开(公告)日：2019-12-18
申请号：EP17762875.7
申请日：2017-02-20
申请人： Mitsubishi Electric Corporation
发明人： NAKAMIZO, Hideyuki , HIEDA, Morishige , MIZUTANI, Hiroyuki , TAJIMA, Kenichi
IPC分类号： H03L7/197 , H03L7/23 , H03M3/02

5. 发明公开

EP3410532A1 IN-PHASE DISTRIBUTION CIRCUIT AND ARRAY ANTENNA DEVICE 审中-公开
公开(公告)号：EP3410532A1
公开(公告)日：2018-12-05
申请号：EP16889231.3
申请日：2016-02-02
申请人： Mitsubishi Electric Corporation
发明人： MIZUTANI, Hiroyuki , TAJIMA, Kenichi , HIEDA, Morishige
IPC分类号： H01P5/12 , H01Q3/30
CPC分类号： H01P1/18 , H01P1/213 , H01P1/24 , H01P1/36 , H01P1/38 , H01P5/12 , H01P5/18 , H01Q3/30 , H01Q21/0006 , H01Q21/0037 , H01Q21/22
摘要： As a layout requirement imposed on an in-phase corporate-feed circuit, there is provided only a layout requirement to equalize the electric length of a transmission line (4) between one of N T-branch units (6) which is m-th when counted from a start point of a path A, and another one of the T-branch units (6) which is (m+1)-th when counted from the start point of the path A, to that of a transmission line (8) between one of N T-branch units (10) which is m-th when counted from an end point of a path B, and another one of the T-branch units (10) which is (m+1)-th when counted from the end point of the path B. Therefore, the in-phase corporate-feed circuit can be formed in a space smaller than that in which its circuit configuration of tournament type is formed, and downsizing of the circuit size can be achieved.

6. 发明公开

EP2629424A1 FREQUENCY SYNTHESIZER 审中-公开
标题翻译：频率合成器
公开(公告)号：EP2629424A1
公开(公告)日：2013-08-21
申请号：EP11864036.6
申请日：2011-04-19
申请人： Mitsubishi Electric Corporation
发明人： TAJIMA, Kenichi , NAKAMIZO, Hideyuki , HIEDA, Morishige
IPC分类号： H03L7/087 , H03L7/08 , H03L7/085 , H03L7/095 , H03L7/197
CPC分类号： H03L7/087 , H03L7/085 , H03L7/113 , H03L7/197
摘要： A phase difference detecting circuit 3 includes a sync detecting circuit 21 for detecting establishment of phase sync from phase difference signals D and U generated by a D-type flip-flop 13, and a switch 22 for supplying, unless the sync detecting circuit 21 detects the establishment of the phase sync, the control voltage V t1 generated by the current-output-matching loop filter 15 to a voltage-controlled oscillator 4, and for supplying, when the sync detecting circuit 21 detects the establishment of the phase sync, the control voltage V t2 generated by the voltage-output-matching loop filter 20 to the voltage-controlled oscillator 4.
摘要翻译：相位差检测电路3包括用于检测由D型触发器13产生的相位差信号D和U建立相位同步的同步检测电路21和用于提供的开关22，除非同步检测电路21检测到相位同步的建立，由电流输出匹配环路滤波器15产生的控制电压Vt1到电压控制振荡器4，并且当同步检测电路21检测到相位同步的建立时，提供控制由电压输出匹配环路滤波器20生成的电压Vt2输出到电压控制振荡器4。

7. 发明公开

EP3796567A1 WIRELESS COMMUNICATION SYSTEM, TERMINAL DEVICE, BASE STATION DEVICE, AND WIRELESS COMMUNICATION METHOD 审中-公开
公开(公告)号：EP3796567A1
公开(公告)日：2021-03-24
申请号：EP18923569.0
申请日：2018-06-22
申请人： Mitsubishi Electric Corporation
发明人： NAKAMIZO, Hideyuki , TAJIMA, Kenichi , OKAZAKI, Akihiro , UCHIDA, Shigeru , FUKUI, Noriyuki
IPC分类号： H04B7/0408
摘要： Abase station device (1) that forms a plurality of beams TB necessary for covering the entire service area and transmits a communication signal in a time-division manner with each of the plurality of beams TB, and a terminal device (2) that receives the beams TB emitted from the base station device (1) are included. Communication from the base station device (1) to the terminal device (2) is performed with a beam-forming technique. The terminal device (2) compares the received power value of the communication signal in each of the plurality of beams TB received from the base station device (1) with the terminal allowable power value of the terminal device (2), and, on the basis of the comparison result, transmits a specific signal for selecting a beam TB from the plurality of beams TB to the base station device (1). The base station device (1) receives the specific signal from the terminal device (2), selects a beam TB from the plurality of beams TB in accordance with a beam select signal based on the received specific signal, and transmits a communication signal with the selected beam in a time-division manner.

8. 发明授权

EP3410532B1 IN-PHASE DISTRIBUTION CIRCUIT AND ARRAY ANTENNA DEVICE 有权
公开(公告)号：EP3410532B1
公开(公告)日：2020-03-25
申请号：EP16889231.3
申请日：2016-02-02
申请人： Mitsubishi Electric Corporation
发明人： MIZUTANI, Hiroyuki , TAJIMA, Kenichi , HIEDA, Morishige
IPC分类号： H01P5/12 , H01Q3/30 , H01Q21/00 , H01P1/213 , H01P5/18 , H01P1/36 , H01P1/38

9. 发明公开

EP2544301A1 ARRAY ANTENNA DEVICE 有权
标题翻译：天线群DEVICE
公开(公告)号：EP2544301A1
公开(公告)日：2013-01-09
申请号：EP11750509.9
申请日：2011-02-22
申请人： Mitsubishi Electric Corporation
发明人： HAYASHI, Ryoji , HIRANO, Yoshihito , SAKAI, Kiyohide , SHIMOZAWA, Mitsuhiro , INOUE, Akira , HIEDA, Morishige , JOBA, Hiroyuki , TAJIMA, Kenichi , TAKAHASHI, Yoshinori , MORI, Kazutomi , AKIYAMA, Tomohiro
IPC分类号： H01Q3/26 , H01Q3/36 , H01Q3/42 , H04B7/10
CPC分类号： H01Q3/42 , H01Q3/30 , H01Q21/0025 , H04B17/0085
摘要： An array antenna apparatus is obtained in which an SN ratio is improved. Antenna elements (10a - 10n) having transmission modules (20a - 20n), respectively, are arranged in plurality, wherein the plurality of transmission modules (20a - 20n) respectively have transmission signal generators (11a - 11n) that each output a transmission intermediate frequency signal (S1), local oscillation signal generators (21a - 21 n) that each output a local oscillation signal (S2), and transmission mixers (12a - 12n) that each mix the transmission intermediate frequency signal (S1) and the local oscillation signal (S2) with each other, thereby to carry out frequency conversion to a transmission high frequency signal (S3). A reference signal source (1) is provided which inputs a reference signal (Sr) to the transmission signal generators (11a - 11 n) and the local oscillation signal generators (21 a - 21 n). The transmission intermediate frequency signal (S1) and the local oscillation signal (S2) are synchronized with each other by the reference signal (Sr).

10. 发明公开

EP2383887A1 MULTI-PORT AMPLIFIER AND WIRELESS DEVICE USING SAME 审中-公开
标题翻译：迪斯尼维尔德·维尔斯塔克
公开(公告)号：EP2383887A1
公开(公告)日：2011-11-02
申请号：EP09837530.6
申请日：2009-10-01
申请人： Mitsubishi Electric Corporation
发明人： HANGAI, Masatake , MORI, Kazutomi , TAJIMA, Kenichi , TAHARA, Yukihiro , HIEDA, Morishige
IPC分类号： H03F3/189 , H03F1/32 , H03F3/24 , H03F3/68 , H04B1/04 , H04B1/08
CPC分类号： H03F3/68 , H03F3/24 , H03F3/602 , H03F2200/204
摘要： A multiport amplifier and a wireless device using the same are obtained in which isolation among output terminals is improved, whereby the quality of communication is improved.
The multiport amplifier according to this invention is provided with an input hybrid (3a), an output hybrid (3b), a plurality of amplifiers (7a through 7d) and a plurality of gain and phase control circuits (4a through 4d) that are inserted between the input hybrid (3a) and the output hybrid (3b), a plurality of output coupling circuits (8a through 8d) that are inserted between the output hybrid (3b) and a plurality of output terminals (9a through 9d) so that they receive output extraction signals (U1 through U4) corresponding to a plurality of output signals (O1 through O4), and a feedback circuit having a frequency selection circuit (13a) that is inserted between the plurality of output coupling circuits (8a through 8d) and the plurality of gain and phase control circuits (4a through 4d).
摘要翻译：获得多端口放大器和使用该多端口放大器的无线装置，其中提高了输出端子之间的隔离，从而提高了通信质量。根据本发明的多端口放大器设置有输入混合（3a），输出混合（3b），多个放大器（7a至7d）和多个增益和相位控制电路（4a至4d），其被插入输入混合（3a）和输出混合（3b）之间的多个输出耦合电路（8a至8d），其插入在输出混合器（3b）和多个输出端子（9a至9d）之间，使得它们接收对应于多个输出信号（O1至O4）的输出提取信号（U1至U4）和具有插入在多个输出耦合电路（8a至8d）之间的频率选择电路（13a）的反馈电路和多个增益和相位控制电路（4a至4d）。

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