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    • 1. 发明授权
    • Quality monitoring method and apparatus for wavelength division multiplexed optical signal and optical transmission system using the same
    • 用于波分复用光信号和使用其的光传输系统的质量监测方法和装置
    • US07400830B2
    • 2008-07-15
    • US10806330
    • 2004-03-23
    • Kenichi ToriiTakao NaitoHiroshi NakamotoToru Katagiri
    • Kenichi ToriiTakao NaitoHiroshi NakamotoToru Katagiri
    • H04B10/08
    • H04B10/07953
    • The present invention has an object to provide a technology for monitoring the quality of a WDM signal light, capable of quickly and accurately judging an occurrence of quality deterioration of signal light and a deterioration factor thereof. To this end, according to a quality monitoring apparatus of WDM signal light of the present invention, a part of the WDM signal light being propagated through an optical transmission path is branched as a monitor light, a signal light of one wavelength contained in the monitor light is selected as a channel to be measured. Then, the frequency of occurrences of bit error for the channel to be measured is repeatedly measured for a plurality of times, and whether or not the signal quality is deteriorated is judged, together with the deterioration factor based on the measurement results, and a control signal light for adjusting the signal light power according to the judgment result is transmitted to the optical transmission path, to achieve the improvement of a characteristic of the WDM signal light.
    • 本发明的目的是提供一种用于监视WDM信号光的质量的技术,其能够快速且准确地判断信号光的质量劣化的发生及其劣化因素。 为此,根据本发明的WDM信号光的质量监视装置,通过光传输路径传播的WDM信号光的一部分被分支为监视光,监视器中包含一个波长的信号光 选择光作为待测量的通道。 然后,重复地测量要测量的通道的位错误的发生频率,并且判断信号质量是否劣化,以及基于测量结果的劣化因子以及控制 将根据判断结果调整信号光功率的信号光发送到光传输路径,以实现WDM信号光的特性的提高。
    • 4. 发明申请
    • Optical connection switching apparatus and management control unit thereof
    • 光连接交换装置及其管理控制单元
    • US20050196168A1
    • 2005-09-08
    • US10873257
    • 2004-06-23
    • Kouichirou AmemiyaTakao NaitoToru KatagiriToshiki Tanaka
    • Kouichirou AmemiyaTakao NaitoToru KatagiriToshiki Tanaka
    • H04J14/00H04Q11/00
    • H04Q11/0062H04Q11/0071
    • An optical connection switching according to the present invention comprises an optical connection switching fabric capable of making a connection between any one of optical input ports and any one of optical output ports, one or more optical transceiving units connected to a part of the optical input/output ports, and a management control unit for controlling the optical connection switching fabric to make a connection between the optical input/output port connected to the optical transceiving unit and the optical input/output port connected to the equipment for acquiring and managing information on the equipment by making a communication with the equipment through the use of the optical transceiving unit. This enables acquiring the information on the equipment having an optical communication interface to be optically connected, thereby automating the connection management of the equipment.
    • 根据本发明的光连接交换包括光连接交换结构,其能够在光输入端口和光输出端口中的任一个之间进行连接,一个或多个光收发单元连接到光输入/ 输出端口和管理控制单元,用于控制光连接交换结构,以连接到光收发单元的光输入/输出端口与连接到设备的光输入/输出端口之间的连接,用于获取和管理关于 设备通过使用光收发单元与设备进行通信。 这使得能够获取具有光学连接的光通信接口的设备的信息,从而使设备的连接管理自动化。
    • 6. 发明授权
    • Wavelength division multiplexing optical transmission system
    • 波分复用光传输系统
    • US07146066B2
    • 2006-12-05
    • US10995179
    • 2004-11-24
    • Toru KatagiriTakao Naito
    • Toru KatagiriTakao Naito
    • G02B6/14G02B6/28
    • H04B10/25133
    • The objective of the present invention is to realize a chromatic dispersion compensation method which does not depend on a wavelength path in a photonic network to which a HUB node is applied and its monitoring control. In order to achieve this purpose, the present invention controls a plurality of variable chromatic dispersion compensators arbitrarily disposed in the photonic network based on the measured results of a plurality of chromatic dispersion monitors arbitrarily disposed in the photonic network and wavelength path information kept by the network management system which manages the entire photonic network. Here, the variable chromatic dispersion compensator within the network that should be controlled and the chromatic dispersion compensated quantity thereof are determined based on the measured results of the chromatic dispersion monitor and the wavelength path information kept by NMS.
    • 本发明的目的是实现不依赖于应用了HUB节点的光子网络中的波长路径及其监视控制的色散补偿方法。 为了实现该目的,本发明基于任意设置在光子网络中的多个色散监视器的测量结果和由网络保存的波长路径信息来控制任意设置在光子网络中的多个可变色散补偿器 管理整个光网络的管理系统。 这里,基于色散监视器的测量结果和由NMS保持的波长路径信息来确定网络内可变色散补偿器和应该被控制的色散补偿量。
    • 9. 发明授权
    • Optical connection switching apparatus and management control unit thereof
    • 光连接交换装置及其管理控制单元
    • US07813640B2
    • 2010-10-12
    • US11081056
    • 2005-03-16
    • Kouichirou AmemiyaTakao NaitoToru KatagiriToshiki Tanaka
    • Kouichirou AmemiyaTakao NaitoToru KatagiriToshiki Tanaka
    • H04J14/00
    • H04Q11/0005H04Q2011/0039H04Q2011/0079
    • An optical connection switching according to the present invention comprises an optical connection switching facility capable of making a connection between any one of optical input ports and any one of optical output ports, one or more optical transmitting/receiving units connected to a portion of the optical input/output ports, and management control units for controlling the optical connection switching facility to make a connection between the optical input/output port connected to the optical transmitting/receiving unit and the optical input/output port connected to equipment for acquiring and managing information on the equipment by making a communication with the equipment through the use of the optical transmitting/receiving unit. This enables acquiring the information on the equipment having an optical communication interface to be optically connected, thereby automating the connection management of the equipment.
    • 根据本发明的光学连接切换包括光连接切换设备,其能够进行任何一个光输入端口和光输出端口中的任一个之间的连接,一个或多个光发送/接收单元连接到光学部件的一部分 输入/输出端口和管理控制单元,用于控制光学连接切换设备,以连接到与光学发送/接收单元连接的光学输入/输出端口与连接到用于获取和管理信息的设备的光学输入/输出端口之间的连接 通过使用光发送/接收单元与设备进行通信,在设备上。 这使得能够获取具有光学连接的光通信接口的设备的信息,从而使设备的连接管理自动化。