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

申请人： Nippon Telegraph And Telephone Corporation

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。

公开(公告)号：EP2930867B1

公开(公告)日：2019-04-24

申请号：EP14742856.9

申请日：2014-01-24

申请人： Nippon Telegraph and Telephone Corporation

发明人： HORIKOSHI, Kengo ,  SHIBAHARA, Kohki ,  YAMAZAKI, Etsushi ,  YOSHIDA, Mitsuteru ,  ISHIHARA, Koichi ,  KOBAYASHI, Takayuki ,  KISAKA, Yoshiaki ,  OHARA, Takuya ,  TOMIZAWA, Masahito ,  KATAOKA, Tomoyoshi

IPC分类号： H04B10/61

公开(公告)号：EP3176964B1

公开(公告)日：2018-03-28

申请号：EP16204161.0

申请日：2014-01-15

申请人： Nippon Telegraph And Telephone Corporation

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.

公开(公告)号：EP2996266A1

公开(公告)日：2016-03-16

申请号：EP14794331.0

申请日：2014-05-09

申请人： Nippon Telegraph and Telephone Corporation

发明人： NAGATANI, Munehiko ,  NOSAKA, Hideyuki ,  ITOH, Toshihiro ,  MURATA, Koichi ,  FUKUYAMA, Hiroyuki ,  SAIDA, Takashi ,  KAMEI, Shin ,  YAMAZAKI, Hiroshi ,  KIKUCHI, Nobuhiro ,  KOIZUMI, Hiroshi ,  NOGAWA, Masafumi ,  KATSURAI, Hiroaki ,  UZAWA, Hiroyuki ,  KATAOKA, Tomoyoshi ,  FUJIWARA, Naoki ,  KAWAKAMI, Hiroto ,  HORIKOSHI, Kengo ,  BOUVIER, Yves ,  YONEYAMA, Mikio ,  AISAWA, Shigeki ,  SUZUKI, Masahiro

IPC分类号： H04B10/516 ,  H03F1/00 ,  H03F3/45 ,  H03F3/60 ,  H03G3/18

CPC分类号： H04B10/541 ,  H03F1/223 ,  H03F1/32 ,  H03F3/04 ,  H03F3/082 ,  H03F3/195 ,  H03F3/245 ,  H03F3/45085 ,  H03F3/45089 ,  H03F3/45183 ,  H03F3/45188 ,  H03F3/602 ,  H03F2200/18 ,  H03F2200/219 ,  H03F2200/255 ,  H03F2200/27 ,  H03F2200/336 ,  H03F2200/411 ,  H03F2200/72 ,  H03F2200/75 ,  H03F2203/45258 ,  H03F2203/45374 ,  H03F2203/45392 ,  H03F2203/45454 ,  H03F2203/45466 ,  H03F2203/45471 ,  H03F2203/45486 ,  H03F2203/45496 ,  H03F2203/45504 ,  H03F2203/45506 ,  H03F2203/45702 ,  H03G1/0023 ,  H03G1/0082 ,  H03G1/0088 ,  H03G3/00 ,  H03G3/001 ,  H03G3/3084 ,  H04B10/5561 ,  H04B10/588

摘要： An optical modulator driver circuit (1) includes an amplifier (50, Q10, Q11, R10 - R13), and a current amount adjustment circuit (51) capable of adjusting a current amount of the amplifier (50) in accordance with a desired operation mode. The current amount adjustment circuit (51) includes at least two current sources (IS10) that are individually ON/OFF-controllable in accordance with a binary control signal representing the desired operation mode.