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1. 发明授权

EP3119051B1 LIKELIHOOD GENERATION DEVICE AND METHOD THEREFOR 有权
公开(公告)号：EP3119051B1
公开(公告)日：2019-11-20
申请号：EP15760950.4
申请日：2015-02-16
申请人： Mitsubishi Electric Corporation
发明人： KONISHI, Yoshiaki , SUGIHARA, Kenya , MIYATA, Yoshikuni , YOSHIDA, Hideo , KUBO, Kazuo
IPC分类号： H04L27/38 , H04L25/06 , H04L27/233 , H04L27/34

2. 发明授权

EP2259128B1 DIGITAL SIGNAL PROCESSOR-BASED OPTICAL TRANSMITTER 有权
标题翻译：上的数字信号处理器根据光发送器
公开(公告)号：EP2259128B1
公开(公告)日：2017-02-22
申请号：EP08739477.1
申请日：2008-03-31
申请人： Mitsubishi Electric Corporation
发明人： MIZUOCHI, Takashi , KONISHI, Yoshiaki , KOBAYASHI, Tatsuya
IPC分类号： H04B10/548 , H04B10/50 , H04B10/564
CPC分类号： H04B10/5059 , H04B10/548 , H04B10/564

3. 发明公开

EP4109765A1 ERROR-CORRECTION ENCODING DEVICE, ERROR-CORRECTION DECODING DEVICE, CONTROL CIRCUIT, STORAGE MEDIUM, ERROR-CORRECTION ENCODING METHOD, AND ERROR-CORRECTION DECODING METHOD 有权
公开(公告)号：EP4109765A1
公开(公告)日：2022-12-28
申请号：EP21779027.8
申请日：2021-02-09
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： YOSHIDA, Hideo , YOSHIDA, Tsuyoshi , KONISHI, Yoshiaki , ISHII, Kenji
IPC分类号： H03M13/15 , H04L27/34 , H04L27/38
摘要： An error correction coding apparatus (100A) that performs error correction coding using, as an error correction code sequence, a frame of m bits × n symbols input in m-bit parallel, where m and n are positive integers, includes: an error correction coding circuit (2) that performs error correction coding using, as information bits, m bits × n symbols including known bits assigned to a bit sequence specified in the error correction code sequence and generate error correction coded parity bits; and a selector (4) that replaces the known bits of the error correction code sequence with the parity bits.

4. 发明授权

EP2981008B1 MULTILEVEL MODULATION OPTICAL TRANSCEIVER DEVICE AND MULTILEVEL MODULATION OPTICAL TRANSCEIVER METHOD 有权
公开(公告)号：EP2981008B1
公开(公告)日：2019-04-24
申请号：EP13880575.9
申请日：2013-03-26
申请人： Mitsubishi Electric Corporation
发明人： ONOHARA, Kiyoshi , YOSHIDA, Tsuyoshi , FUJIMORI, Takafumi , KONISHI, Yoshiaki
IPC分类号： H04J3/16 , H04J3/06 , H04J3/04 , H04J3/00 , H04B10/50 , H04B10/60 , H04L7/00 , H04L25/14 , H04L25/49

5. 发明公开

EP2381592A1 OPTICAL TRANSMITTER 有权
标题翻译： OPTISCHER SENDER
公开(公告)号：EP2381592A1
公开(公告)日：2011-10-26
申请号：EP10731247.2
申请日：2010-01-13
申请人： Mitsubishi Electric Corporation
发明人： SUGIHARA, Takashi , KAMETANI, Soichiro , MIZUOCHI, Takashi , KONISHI, Yoshiaki
IPC分类号： H04B10/04 , G02F1/01 , H04B10/06 , H04B10/142 , H04B10/152 , H04L27/36
CPC分类号： H04L27/36 , H04B10/5053 , H04B10/5055 , H04B10/516
摘要： Provided is an optical transmitter capable of lessening a processing load of multi-level modulation processing. The optical transmitter for converting an input data series which is an input electrical signal into an optical multi-level signal and for outputting the optical multi-level signal, includes: an LUT (2) in which data for executing optical multi-level modulation is stored and from which first modulation data and second modulation data are output based on the input data series; a DAC (5a) which converts the first modulation data by D/A conversion to generate a first multi-level signal; a DAC (5b) which converts the second modulation data by D/A conversion to generate a second multi-level signal; and a dual-electrode MZ modulator (8) which includes a first phase modulator (8a) for modulating light from a light source (7) in accordance with the first multi-level signal and a second phase modulator (8b) for modulating light from the light source in accordance with the second multi-level signal, and which combines an optical signal from the first phase modulator (8a) and an optical signal from the second phase modulator (8b) to output the optical multi-level signal.
摘要翻译：提供能够减轻多级调制处理的处理负荷的光发送器。将作为输入电信号的输入数据序列转换为光多级信号并输出光多级信号的光发送器包括：LUT（2），其中用于执行光多级调制的数据为基于输入数据序列输出第一调制数据和第二调制数据; DAC（5a），其通过D / A转换来转换第一调制数据以产生第一多电平信号; DAC（5b），其通过D / A转换来转换第二调制数据以产生第二多电平信号; 以及双电极MZ调制器（8），其包括用于根据第一多电平信号调制来自光源（7）的光的第一相位调制器（8a）和用于调制来自根据第二多电平信号的光源，并且其组合来自第一相位调制器（8a）的光信号和来自第二相位调制器（8b）的光信号，以输出光多电平信号。

6. 发明公开

EP2259128A1 DIGITAL SIGNAL PROCESSOR-BASED OPTICAL TRANSMITTER 有权
标题翻译：上的数字信号处理器根据光发送器
公开(公告)号：EP2259128A1
公开(公告)日：2010-12-08
申请号：EP08739477.1
申请日：2008-03-31
申请人： Mitsubishi Electric Corporation
发明人： MIZUOCHI, Takashi , KONISHI, Yoshiaki , KOBAYASHI, Tatsuya
IPC分类号： G02F1/01 , H04B10/04 , H04B10/06 , H04B10/14 , H04B10/26 , H04B10/28
CPC分类号： H04B10/5059 , H04B10/548 , H04B10/564
摘要： In a digital signal processing optical transmission apparatus such as a predistortion or OFDM type one, optical transmission at a stable S/N ratio is intended to be able to be made by controlling an output of an optical transmission signal with fixed average power, even if a peak to average power ratio of the optical transmission signal changes. The apparatus is provided with an average power calculation unit (30) that calculates the average power of a digital signal outputted from a digital signal processing circuit (2), and an optical power variable unit (31) that serves to make constant the average power of an optical transmission signal outputted from an optical vector modulator (5).

7. 发明公开

EP3926836A1 OPTICAL TRANSMISSION DEVICE AND LIKELIHOOD GENERATION CIRCUIT 有权
公开(公告)号：EP3926836A1
公开(公告)日：2021-12-22
申请号：EP19919078.6
申请日：2019-03-11
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： KONISHI, Yoshiaki , ISHII, Kenji , YOSHIDA, Hideo , SUGIHARA, Takashi , YOSHIDA, Tsuyoshi
IPC分类号： H03M13/45 , H04L27/38
摘要： Provided is an optical transmission device including: a symbol demapping unit configured to convert a reception signal to a signal of an I-axis component and a signal of a Q-axis component on a phase plane, and a signal being a concatenation of the signal of the I-axis component and the signal of the Q-axis component; a likelihood generation circuit configured to generate likelihoods relating to the reception signal; and an error correction decoding unit configured to execute soft decision decoding. The likelihood generation circuit includes: a first one-dimensional-modulation lookup table configured to input the signal of the I-axis component as an argument to output a first likelihood; a second one-dimensional-modulation lookup table configured to input the signal of the Q-axis component as an argument to output a second likelihood; and a two-dimensional-modulation lookup table configured to input, as an argument, the signal being the concatenation of the signal of the I-axis component and the signal of the Q-axis component, to generate a third likelihood. The error correction decoding unit is configured to execute the soft decision decoding based on the first likelihood, the second likelihood, and the third likelihood.

8. 发明授权

EP2961120B1 OPTICAL TRANSPORT DEVICE 有权
公开(公告)号：EP2961120B1
公开(公告)日：2019-03-27
申请号：EP14754299.7
申请日：2014-02-20
申请人： Mitsubishi Electric Corporation
发明人： KONISHI, Yoshiaki , KUBO, Kazuo
IPC分类号： H04B10/556 , H04B10/25 , H04B10/40 , H04B10/516 , H04B10/61 , H04J3/16 , H04J14/06 , H04L1/00 , H04L27/34 , H04L27/36

9. 发明授权

EP2381592B1 OPTICAL TRANSMITTER 有权
公开(公告)号：EP2381592B1
公开(公告)日：2018-10-17
申请号：EP10731247.2
申请日：2010-01-13
申请人： Mitsubishi Electric Corporation
发明人： SUGIHARA, Takashi , KAMETANI, Soichiro , MIZUOCHI, Takashi , KONISHI, Yoshiaki
IPC分类号： G02F1/01 , H04L27/36 , H04B10/50 , H04B10/60 , H04B10/516
CPC分类号： H04L27/36 , H04B10/5053 , H04B10/5055 , H04B10/516
摘要： Provided is an optical transmitter capable of lessening a processing load of multi-level modulation processing. The optical transmitter for converting an input data series which is an input electrical signal into an optical multi-level signal and for outputting the optical multi-level signal, includes: an LUT (2) in which data for executing optical multi-level modulation is stored and from which first modulation data and second modulation data are output based on the input data series; a DAC (5a) which converts the first modulation data by D/A conversion to generate a first multi-level signal; a DAC (5b) which converts the second modulation data by D/A conversion to generate a second multi-level signal; and a dual-electrode MZ modulator (8) which includes a first phase modulator (8a) for modulating light from a light source (7) in accordance with the first multi-level signal and a second phase modulator (8b) for modulating light from the light source in accordance with the second multi-level signal, and which combines an optical signal from the first phase modulator (8a) and an optical signal from the second phase modulator (8b) to output the optical multi-level signal.

10. 发明公开

EP3119051A1 LIKELIHOOD GENERATION DEVICE AND METHOD THEREFOR 有权
标题翻译： VERFAHRENDAFÜR的WAHRSCHEINLICHKEITSERZEUGUNGSVORRICHTUNG
公开(公告)号：EP3119051A1
公开(公告)日：2017-01-18
申请号：EP15760950.4
申请日：2015-02-16
申请人： Mitsubishi Electric Corporation
发明人： KONISHI, Yoshiaki , SUGIHARA, Kenya , MIYATA, Yoshikuni , YOSHIDA, Hideo , KUBO, Kazuo
IPC分类号： H04L27/38
摘要： Provided are a likelihood generation apparatus and the like having suppressed degradation of a precision of a likelihood while suppressing a circuit scale. The likelihood generation apparatus for acquiring a likelihood of a 16QAM signal includes a first likelihood generation unit configured to generate a likelihood of each of two bits of a 16QAM signal point of the 16QAM signal from a relationship of each of an I-axis component and a Q-axis component with a likelihood when the 16QAM signal point is mapped on a constellation diagram, and a second likelihood generation unit configured to generate a likelihood of each of remaining two bits other than the two bits of the 16QAM signal point of the 16QAM signal based on a position of the 16QAM signal point in a lookup table, which is configured to input the I-axis component and the Q-axis component of the 16QAM signal point as arguments, and includes regions acquired by dividing the constellation diagram based on a possible value of each of the bits.
摘要翻译：提供了在抑制电路规模的同时抑制了似然率精度劣化的似然产生装置等。用于获取16QAM信号的可能性的似然产生装置包括：第一似然生成单元，被配置为根据IQ分量和IQ分量的关系，生成16QAM信号的16QAM信号点的两个比特的似然度当16QAM信号点被映射在星座图上时具有似然性的Q轴分量，以及第二似然生成单元，被配置为生成除了16QAM信号的16QAM信号点的两个比特之外的剩余两个比特中的每一个的可能性基于在查找表中的16QAM信号点的位置，其被配置为将16QAM信号点的I轴分量和Q轴分量输入为参数，并且包括通过基于a的星座图划分而获得的区域每个位的可能值。

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