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公开(公告)号：US10601522B2
公开(公告)日：2020-03-24
申请号：US16309410
申请日：2017-06-19
Applicant: Nippon Telegraph and Telephone Corporation
Inventor： Toshihiro Itoh , Yuriko Kawamura , Kiyofumi Kikuchi , Ken Tsuzuki , Hiroshi Fukuda , Shin Kamei
Abstract: An optical receiver is configured so as to be as less susceptible to noise as possible even in the case where high noise occurs inside an optical transceiver. The optical receiver includes a connection part that connects two photodiodes (PDs) constituting a dual photodiode and a transimpedance amplifier (TIA), wherein signal lines from the dual photodiode are surrounded by a conductor pattern that is not connected to each of the signal lines for each channel, and the conductor pattern is connected to a ground pattern on the transimpedance amplifier or a power source pattern for the PDs.
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公开(公告)号：US20160087727A1
公开(公告)日：2016-03-24
申请号：US14889127
申请日：2014-05-09
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Munehiko Nagatani , Hideyuki Nosaka , Toshihiro Itoh , Koichi Murata , Hiroyuki Fukuyama , Takashi Saida , Shin Kamei , Hiroshi Yamazaki , Nobuhiro Kikuchi , Hiroshi Koizumi , Masafumi Nogawa , Hiroaki Katsurai , Hiroyuki Uzawa , Tomoyoshi Kataoka , Naoki Fujiwara , Hiroto Kawakami , Kengo Horikoshi , Yves Bouvier , Mikio Yoneyama , Shigeki Aisawa , Masahiro Suzuki
CPC classification number: 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
Abstract: 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.
Abstract translation: 光调制器驱动电路（1）包括放大器（50，Q10，Q11，R10-R13）和电流量调节电路（51），能够根据期望的操作调节放大器（50）的电流量 模式。 电流量调节电路（51）包括至少两个根据表示期望的操作模式的二进制控制信号单独地进行ON / OFF控制的电流源（IS10）。
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公开(公告)号：US20190181961A1
公开(公告)日：2019-06-13
申请号：US16309410
申请日：2017-06-19
Applicant: Nippon Telegraph and Telephone Corporation
Inventor： Toshihiro Itoh , Yuriko Kawamura , Kiyofumi Kikuchi , Ken Tsuzuki , Hiroshi Fukuda , Shin Kamei
Abstract: An optical receiver is configured so as to be as less susceptible to noise as possible even in the case where high noise occurs inside an optical transceiver. The optical receiver includes a connection part that connects two photodiodes (PDs) constituting a dual photodiode and a transimpedance amplifier (TIA), wherein signal lines from the dual photodiode are surrounded by a conductor pattern that is not connected to each of the signal lines for each channel, and the conductor pattern is connected to a ground pattern on the transimpedance amplifier or a power source pattern for the PDs.
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公开(公告)号：US10243664B2
公开(公告)日：2019-03-26
申请号：US14889127
申请日：2014-05-09
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Munehiko Nagatani , Hideyuki Nosaka , Toshihiro Itoh , Koichi Murata , Hiroyuki Fukuyama , Takashi Saida , Shin Kamei , Hiroshi Yamazaki , Nobuhiro Kikuchi , Hiroshi Koizumi , Masafumi Nogawa , Hiroaki Katsurai , Hiroyuki Uzawa , Tomoyoshi Kataoka , Naoki Fujiwara , Hiroto Kawakami , Kengo Horikoshi , Yves Bouvier , Mikio Yoneyama , Shigeki Aisawa , Masahiro Suzuki
IPC: H04B10/54 , H03F1/32 , H03F3/04 , H03F3/60 , H03G3/00 , H04B10/516 , H03F1/22 , H03F3/195 , H03F3/24 , H03F3/45 , H03G3/30 , H03F3/08 , H03G1/00
Abstract: 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.
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