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公开(公告)号:US06801720B1
公开(公告)日:2004-10-05
申请号:US09559644
申请日:2000-04-28
申请人: Takashi Mizuochi , Yojiro Osaki , Aritomo Uemura , Hiroshi Ichibangase , Kiwami Matsushita , Tadayoshi Kitayama , Shu Yamamoto , Tetsuya Miyazaki , Takatomi Kabashima , Naoki Kobayashi
发明人: Takashi Mizuochi , Yojiro Osaki , Aritomo Uemura , Hiroshi Ichibangase , Kiwami Matsushita , Tadayoshi Kitayama , Shu Yamamoto , Tetsuya Miyazaki , Takatomi Kabashima , Naoki Kobayashi
IPC分类号: H04B1016
CPC分类号: H04L1/20 , H04B10/0775 , H04B2210/071 , H04B2210/072 , H04B2210/078 , H04J3/14 , H04J14/02 , H04J14/0227 , H04J14/0245 , H04J14/0249 , H04J14/0283 , H04J2203/0057
摘要: The present invention has an object to obtain an optical signal quality supervisory device that supervises the quality of an optical signal simply, efficiently and with high accuracy without inviting an increase in cost, an increase in circuit scale and increase in power consumption. The bit rate of the optical supervisory channel is made lower than the bit rate of the optical main channel that is transmitted over an optical communication system, but the reception electric band width of a receiver that receives the optical supervisory channel is made equal to or wider than the reception electric band width of a receiver that receives the optical main channel. Also, the optical supervisory channel is made up of an SOH (section over head) frame to detect an error of the BIP (bit interleaved parity) byte of SOH, thereby supervising the quality of the optical communication system, in particular, the light wave network.
摘要翻译: 本发明的目的是获得一种光信号质量监控装置,其能够简单,有效且高精度地监视光信号的质量,而不会增加成本,增加电路规模和增加功耗。 使光监视信道的比特率低于通过光通信系统发送的光主干的比特率,但接收光监控信道的接收机的接收电带宽度等于或大于 比接收光学主通道的接收机的接收电带宽度大。 此外,光监控信道由SOH(部分头)帧构成,以检测SOH的BIP(比特交织奇偶校验)字节的错误,从而监督光通信系统的质量,特别是光波 网络。
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公开(公告)号:US06434288B1
公开(公告)日:2002-08-13
申请号:US09530448
申请日:2000-06-13
申请人: Aritomo Uemura , Hiroshi Ichibangase , Takashi Mizuochi , Tadayoshi Kitayama , Shu Yamamoto , Tetsuya Miyazaki , Takatomi Kabashima , Naoki Kobayashi
发明人: Aritomo Uemura , Hiroshi Ichibangase , Takashi Mizuochi , Tadayoshi Kitayama , Shu Yamamoto , Tetsuya Miyazaki , Takatomi Kabashima , Naoki Kobayashi
IPC分类号: G02B626
CPC分类号: H04J14/0297 , H04J14/0283 , H04J14/0291 , H04J14/0294 , H04Q11/0005 , H04Q11/0062 , H04Q2011/0024 , H04Q2011/0043 , H04Q2011/0081 , H04Q2011/0092
摘要: An optical switching system is implemented by providing a transmitting section with a preparatory transmitted optical signal selector and a working transmitted optical signal splitter, which are each implemented by a 1×2 optical space switch, and by providing a receiving section with a receiving optical switch which is implemented by a 2×2 optical space switch, and with a preparatory receiving optical gate which is implemented by a 1×2 optical space switch. This makes it possible to switch between the working system and preparatory system without employing any 4×4 optical space switch, thereby implementing a practical optical switching system without causing such problems as communication interruption during maintenance or impairment of transmission path working efficiency.
摘要翻译: 光交换系统是通过提供一个具有准备发送光信号选择器和工作传输光信号分离器的发射部分,每个发射部分由1x2光学空间开关实现,并且通过向接收部分提供接收光开关,该接收光开关是 由2x2光学空间开关实现,并且具有由1x2光学空间开关实现的准备接收光栅。 这使得可以在不使用任何4×4光学空间开关的情况下在工作系统和预备系统之间切换,从而实现实用的光交换系统,而不会导致维护期间的通信中断或传输路径工作效率的损害等问题。
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