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公开(公告)号：EP3435562B1
公开(公告)日：2020-09-16
申请号：EP17845847.7
申请日：2017-06-21
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公开(公告)号：EP1965528B1
公开(公告)日：2019-03-06
申请号：EP06835092.5
申请日：2006-12-21
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公开(公告)号：EP2106051B1
公开(公告)日：2019-02-27
申请号：EP08703294.2
申请日：2008-01-16
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公开(公告)号：EP3435562A1
公开(公告)日：2019-01-30
申请号：EP17845847.7
申请日：2017-06-21
发明人： ONUMA, Yasuharu , YAMAZAKI, Etsushi , TAKAMUKU, Tomohiro , TACHIBANA, Masahiro , YOSHIDA, Mitsuteru , TOMIZAWA, Masahito , OKAMOTO, Seiji
摘要： Fourier transform is performed on a reception signal to obtain a first calculation value. Fourier transform is performed on a known signal to obtain a second calculation value. The first calculation value is divided by the second calculation value to obtain a third calculation value. Inverse Fourier transform is performed on the third calculation value to obtain a fourth calculation value. A maximum value of an amplitude of the fourth calculation value and a sample point at which the maximum value is obtained are detected. The position of the known signal in the reception signal is detected from the sample point at which the maximum value is obtained.
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15.发明公开
公开(公告)号：EP3258598A1
公开(公告)日：2017-12-20
申请号：EP17757454.8
申请日：2017-01-16
发明人： ONUMA, Yasuharu , YAMAZAKI, Etsushi , TAKEI, Kazuhito , ISHIDA, Osamu , HORIKOSHI, Kengo , YOSHIDA, Mitsuteru , KISAKA, Yoshiaki , TOMIZAWA, Masahito
CPC分类号： H03H17/0227 , H03H17/00 , H03H17/0213 , H03H17/06 , H03H2017/0214 , H03H2017/0245 , H03H2017/0298 , H04L7/0029 , H04L7/0087
摘要： A parallel transfer rate converter (4) inputs first parallel data with number of samples being S1 pieces in synchronism with a first clock, and outputs second parallel data with number of samples being S2=S1×(m/p) pieces (p is an integer equal to or larger than 1) in synchronism with a second clock having a frequency which is p/m times of a frequency of the first clock. A convolution operation device (5) inputs the second parallel data in synchronism with the second clock, generates third parallel data with number of samples being S3=S2×(n/m) pieces (S3 is an integer equal to or larger than 1) by executing a convolution operation with a coefficient indicating a transmission characteristic to the second parallel data, and outputs the third parallel data in synchronism with the second clock.
摘要翻译： 并行传送速率转换器（4）输入与第一时钟同步的具有S1个样本数的第一并行数据，并输出样本数为S2 = S1×（m / p）个片（p是 整数等于或大于1）与频率为第一时钟的频率的p / m倍的第二时钟同步。 卷积运算装置（5）与第2时钟同步地输入第2并行数据，生成样本数为S3 = S2×（n / m）个（S3为1以上的整数）的第3并行数据， 通过使用指示对第二并行数据的传输特性的系数执行卷积运算，并且与第二时钟同步地输出第三并行数据。
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16.发明公开
公开(公告)号：EP3176964A1
公开(公告)日：2017-06-07
申请号：EP16204161.0
申请日：2014-01-15
发明人： ISHIHARA, Koichi , MIZOGUCHI, Masato , MURAKAMI, Tomoki , KATAOKA, Tomoyoshi , KISAKA, Yoshiaki , NAKAGAWA, Tadao , YAMAZAKI, Etsushi , OKAMOTO, Seiji , HORIKOSHI, Kengo , TOMIZAWA, Masahito , KUDO, Riichi
IPC分类号： H04B10/25 , H04B10/077 , H04B10/69 , H04J14/08
CPC分类号： H04J14/08 , H04B10/0775 , H04B10/2513 , H04B10/25133 , H04B10/516 , H04B10/61 , H04B10/6161 , H04B10/697 , H04B2210/072 , H04J3/14
摘要： The estimation of an amount of chromatic dispersion using a training signal sequence is possible. A transmission method includes: a training signal sequence generation step of generating, as training signal sequences, a plurality of signal sequences having power concentrated in a plurality of frequency bands, the power concentrated at different frequency bands; a training signal sequence selection step of selecting at least one training signal sequence from among the plurality of training signal sequences generated in the training signal sequence generation step, a signal multiplexing step of generating a signal sequence obtained by time-division multiplexing the training signal sequence selected in the training signal sequence selection step with a transmission data sequence, and an electrical-to-optical conversion step of transmitting the signal sequence generated in the signal multiplexing step as an optical signal.
摘要翻译： 使用训练信号序列估计色散量是可能的。 一种发送方法，包括：训练信号序列生成步骤，生成集中在多个频带中的多个信号序列作为训练信号序列，所述多个信号序列集中在不同的频带; 训练信号序列选择步骤，从训练信号序列生成步骤中生成的多个训练信号序列中选择至少一个训练信号序列;信号多路复用步骤，生成通过对训练信号序列进行时分多路复用而获得的信号序列 在训练信号序列选择步骤中选择发送数据序列;以及电光转换步骤，将在信号多路复用步骤中生成的信号序列作为光信号发送。
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公开(公告)号：EP2651056B1
公开(公告)日：2016-01-20
申请号：EP11846946.9
申请日：2011-12-09
CPC分类号： H04J3/0658 , H04J3/07 , H04J3/1652 , H04J14/0227 , H04Q11/0005 , H04Q2011/0045
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18.发明授权VORRICHTUNG UND VERFAHREN ZUR EINSTELLUNG DER CHROMATISCHEN DISPERSION 有权DEVICE AND METHOD FOR SETTING色散
公开(公告)号：EP1552628B1
公开(公告)日：2012-07-25
申请号：EP03770878.1
申请日：2003-09-23
CPC分类号： H04B10/2525 , G02F1/0115 , G02F1/0147
摘要： The invention relates to the regulation of chromatic dispersion in an optical transmission system. To this end, a device is provided which comprises an optical element (17) having a temperature-dependent chromatic dispersion, and a mechanism (19) for adjusting the temperature or temperature distribution of at least one region of the optical element (17) in order to obtain a pre-defined chromatic dispersion of said optical element (17).
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公开(公告)号：EP2348654A1
公开(公告)日：2011-07-27
申请号：EP09825930.2
申请日：2009-11-13
发明人： AISAWA, Shigeki , TOMIZAWA, Masahito , MIYAMOTO, Yutaka , KISAKA, Yoshiaki , ENDO, Yasuyuki , MIURA, Katsuyoshi , TAKEI, Kazuhito
IPC分类号： H04J3/00
CPC分类号： H04J3/1652 , H04J3/076 , H04J2203/0089
摘要： An optical digital transmission system of the present invention newly defines one second negative stuff byte in an overhead area for accommodation of the client signals with multiplexing into the OTU frame, newly defines one third positive stuff byte in a corresponding tributary slot in a payload area for accommodation of client signals with multiplexing, newly defines stuff control bits that is used for decision of the use of the second negative stuff byte and the third positive stuff byte in three different places in the overhead area for client signal accommodation with multiplexing, performs control by using the newly defined stuff control bits when accommodation of the client signal with the third positive stuff byte or the second negative stuff byte is required, and performs stuff control without using the newly defined stuff control bits when accommodation of the client signal by the third positive stuff byte and the second negative stuff byte is not required.
摘要翻译： 本发明的光数字传输系统新定义了用于将客户端信号复用到OTU帧中的开销区域中的一个第二负填充字节，新定义了有效载荷区域中相应支路时隙中的三分之一正填充字节 客户端信号采用多路复用，新定义了用于决定使用第二负填充字节和第三正填充字节的填充控制位，用于客户端信号调制的开销区域中的三个不同位置进行多路复用，执行控制 当需要用第三正填充字节或第二负填充字节调节客户端信号时使用新定义的填充控制位，并且在将客户端信号调节到第三正值时，不使用新定义的填充控制位执行填充控制 填充字节和第二个负面填充字节不是必需的。
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公开(公告)号：EP3402146B1
公开(公告)日：2020-10-07
申请号：EP17813006.8
申请日：2017-04-13
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