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1. 发明公开

EP3188384A4 NODE APPARATUS AND NODE APPARATUS CONTROL METHOD 有权
公开(公告)号：EP3188384A4
公开(公告)日：2018-04-25
申请号：EP15835653
申请日：2015-08-19
申请人： NEC CORP
发明人： YAMAGUCHI SHOHEI
IPC分类号： H04B10/85 , G02B6/125 , G02B6/43 , G02F1/035 , H01P1/213 , H04J14/00 , H04J14/02
CPC分类号： G02B6/43 , G02B6/125 , G02F1/035 , G02F2203/055 , H01P1/213 , H04B10/85 , H04J14/00 , H04J14/02
摘要： In order to prevent, without significantly reducing the power of a transmission path, a signal unnecessary for a branch station from being intercepted at the branch station, a node apparatus comprises: a first optical unit that outputs a first optical signal received from a first terminal station and addressed to a second terminal station and also outputs a second optical signal received from the first terminal station and addressed to a third terminal station; and a second optical unit that receives the first and second optical signals outputted from the first optical unit, optically removes a portion of the spectrum of the first optical signal, thereby generating a fourth optical signal, and passes the second optical signal as it is, thereby transmitting the second optical signal together with the fourth optical signal to the third terminal station.

2. 发明公开

EP3232578A4 FEEDLINE BRANCHING APPARATUS AND FEEDLINE BRANCHING METHOD 审中-公开
公开(公告)号：EP3232578A4
公开(公告)日：2018-05-30
申请号：EP15867303
申请日：2015-12-07
申请人： NEC CORP
发明人： YAMAGUCHI SHOHEI
IPC分类号： H04B3/44
CPC分类号： H04B3/44 , H02J4/00
摘要： Provided is a feedline branching apparatus that makes it possible for additional submarine cables to be installed easily, and with which cost increases can be restricted. For these purposes, the feedline branching apparatus comprises a branching unit and an earth unit. First, second and third terminal stations are connected to the branching unit via first, second and third cables, respectively. When the first and second cables are normal, the branching unit connects a feedline of the first cable to a feedline of the second cable, thereby forming a feedline using a first current. If one of the first and second cables is faulty, the branching unit grounds the feedline of the one of the first and second cables, while connecting the feedline of the other cable to the earth unit. The earth unit grounds a feedline of the third cable, thereby forming a feedline using a second current. When the feedline of the other cable is connected to the earth unit from the branching unit, the earth unit grounds the feedline of the other cable, thereby forming a feedline using the first current.

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