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公开(公告)号：US06895183B2
公开(公告)日：2005-05-17
申请号：US10134479
申请日：2002-04-30
CPC分类号： H04B10/03 , H04B10/0771 , H04B2210/071 , H04B2210/072 , H04J14/0212 , H04J14/0216 , H04J14/0227 , H04J14/0241 , H04J14/0245 , H04J14/0249 , H04J14/0278 , H04J14/0283 , H04J14/0287 , H04J14/0293
摘要： An optical wavelength division coupler 11 wavelength-divides a wavelength multiplexed light to respective wavelength lights each of which is dropped to an optical gate switch 15-i (i=1˜n) and a light receiver 13-i by an optical coupler 12-i and supplied to an optical light fault monitor 14 through the light receiver 13-i. When the optical signal deterioration monitor 14 detects an optical loss of wavelength (OLOW), an optical loss of signal (OLOS) or an optical signal degrade (OSD) in wavelength lights processed by the optical coupler 12-i as a fault detection signal in an optical layer, a controller 19 controls the optical gate switch 15-i to cut off wavelength light passing therethrough and sends an optical alarm indication signal (AIS-O) to a downstream side. Therefore, when a loss of signal is detected by the light receiver 13-i, the optical signal deterioration monitor 14 can know the alarm indication signal (AIS) from the upstream side, removing the necessity of special hardware therefor.
摘要翻译： 光波长分离耦合器11将波长复用的光分别波长到分别通过光耦合器12的光栅开关15-i（i = 1〜n）和光接收器13 -i的各波长光， 并通过光接收器13 -i提供给光学灯故障监视器14。 当光信号劣化监视器14检测到光学损耗波长（OLOW）时，由光耦合器12 -i处理的波长光中的光信号损失（OLOS）或光信号降级（OSD）作为故障检测信号 光学层，控制器19控制光栅开关15 -i以截去通过其中的波长的光，并向下游侧发送光学报警指示信号（AIS-O）。 因此，当由光接收器13 -i检测到信号丢失时，光信号劣化监视器14可以从上游侧知道报警指示信号（AIS），从而消除了特殊硬件的必要性。
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公开(公告)号：US06404525B1
公开(公告)日：2002-06-11
申请号：US09123529
申请日：1998-07-28
IPC分类号： H04J1402
CPC分类号： H04B10/03 , H04B10/0771 , H04B2210/071 , H04B2210/072 , H04J14/0212 , H04J14/0216 , H04J14/0227 , H04J14/0241 , H04J14/0245 , H04J14/0249 , H04J14/0278 , H04J14/0283 , H04J14/0287 , H04J14/0293
摘要： An optical wavelength division coupler 11 wavelength-divides a wavelength multiplexed light to respective wavelength lights each of which is dropped to an optical gate switch 15-i (i=1˜n) and a light receiver 13-i by an optical coupler 12-i and supplied to an optical light fault monitor 14 through the light receiver 13-i. When the optical signal deterioration monitor 14 detects an optical loss of wavelength (OLOW), an optical loss of signal (OLOS) or an optical signal degrade (OSD) in wavelength lights processed by the optical coupler 12-i as a fault detection signal in an optical layer, a controller 19 controls the optical gate switch 15-i to cut off wavelength light passing therethrough and sends an optical alarm indication signal (AIS-O) to a downstream side. Therefore, when a loss of signal is detected by the light receiver 13-i, the optical signal deterioration monitor 14 can know the alarm indication signal (AIS) from the upstream side, removing the necessity of special hardware therefor.
摘要翻译： 光波长分离耦合器11将波长复用的光分别通过光耦合器12-D将各个波长的光分别投射到光栅开关15-i（i = 1〜n）和光接收器13-i上， 并通过光接收器13-i提供给光学灯故障监视器14。 当光信号劣化监视器14检测到波长的光学损失（OLOW）时，由光耦合器12-i处理的波长光中的信号（OLOS）的光损失或光信号降级（OSD）作为故障检测信号 光学层，控制器19控制光栅开关15-i截止通过的波长的光，向下游侧发送光学警报指示信号（AIS-O）。 因此，当由光接收器13-i检测到信号丢失时，光信号劣化监视器14可以从上游侧知道报警指示信号（AIS），从而消除了特殊硬件的必要性。
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公开(公告)号：US06538779B1
公开(公告)日：2003-03-25
申请号：US09332930
申请日：1999-06-14
IPC分类号： H04B1008
CPC分类号： H04L1/20 , H04B10/07953 , H04L25/063 , H04Q11/0005 , H04Q2011/0039 , H04Q2011/0045 , H04Q2011/0083
摘要： A signal quality monitoring method with reliability is disclosed. After extracting a clock signal from the light signal, a decision region is set for each bit of the light signal. The decision region is defined by a plurality of threshold amplitudes corresponding respectively to threshold phases which are produced with respect to the clock signal. The quality of the light signal is monitored depending on whether an amplitude of the light signal falls into the decision region at timings of the N threshold phases.
摘要翻译： 公开了一种具有可靠性的信号质量监测方法。 在从光信号提取时钟信号之后，为光信号的每一位设置判定区域。 决定区域由分别对应于相对于时钟信号产生的阈值相位的多个阈值幅度来定义。 根据在N个阈值相位的定时，光信号的幅度是否落入判定区域来监视光信号的质量。
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4.发明授权公开(公告)号：US07280470B2
公开(公告)日：2007-10-09
申请号：US10654222
申请日：2003-09-03
CPC分类号： H04J14/0283 , H04J14/0206 , H04J14/0212 , H04J14/0295 , H04J14/0297
摘要： Multiple working paths are established on each working rings and multiple protection paths are established on each of multiple protection rings. A working path on a first working ring spans across first and second nodes for signal transmission in a first direction of the ring, and a working path on a second working ring spans across the first and second nodes for signal transmission in a second, opposite direction of the ring. A protection path on a first protection ring spans across the first and second nodes for signal transmission in said second direction, and a protection path on a second protection ring spans across the first and second nodes for signal transmission in said first direction. The first and second nodes normally use the working paths, respectively. When one of the working paths fails, the first and second nodes use a corresponding protection path.
摘要翻译： 在每个工作环上建立多个工作路径，并在多个保护环中的每一个上建立多个保护路径。 第一工作环上的工作路径横跨第一和第二节点，用于在环的第一方向上进行信号传输，并且第二工作环上的工作路径跨越第一和第二节点跨过第二和相反方向进行信号传输 的戒指 第一保护环上的保护路径穿过第一和第二节点，用于在所述第二方向上进行信号传输，并且第二保护环上的保护路径横跨第一和第二节点跨过所述第一方向进行信号传输。 第一和第二节点通常分别使用工作路径。 当其中一个工作路径发生故障时，第一个和第二个节点使用相应的保护路径。
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5.发明授权公开(公告)号：US06657952B1
公开(公告)日：2003-12-02
申请号：US09200583
申请日：1998-11-27
IPC分类号： G01R3108
CPC分类号： H04J14/0283 , H04J14/0206 , H04J14/0212 , H04J14/0295 , H04J14/0297
摘要： In a ring topology network, a number of nodes interconnect transmission links to form first and second working rings and first and second optical protection rings in a ring topology. Multiple working paths are established on each working ring and multiple protection paths are established on each protection ring corresponding to the working paths. A first working path spans across first and second nodes for transmission of a signal in a first direction of the ring topology, and a second working path of the second working rings spans across the first and second nodes for transmission of a signal in a second direction of the ring topology opposite to the first direction. A first protection path on the first protection ring spans across the first and second nodes for transmission of a signal in the second direction of the ring topology, and a second protection path of the second protection ring spans across the first and second nodes for transmission of a signal in the first direction of the ring topology. The first and second nodes normally use the first and second working paths, respectively. Responsive to a failure of one of the first and second working paths, the first and second nodes use a corresponding one of the first and second protection paths, instead of the failed working path.
摘要翻译： 在环形拓扑网络中，多个节点互连传输链路以形成环形拓扑中的第一和第二工作环以及第一和第二光学保护环。 在每个工作环上建立多个工作路径，并在与工作路径对应的每个保护环上建立多条保护路径。 第一工作路径横跨第一和第二节点，用于在环形拓扑的第一方向传输信号，并且第二工作环的第二工作路径横跨第一和第二节点跨过第二方向传输信号 的环形拓扑与第一个方向相反。 第一保护环上的第一保护路径穿过第一和第二节点，用于在环形拓扑的第二方向上传输信号，并且第二保护环的第二保护路径跨过第一和第二节点传输 环形拓扑的第一个方向的信号。 第一和第二节点通常分别使用第一和第二工作路径。 响应于第一和第二工作路径之一的故障，第一和第二节点使用第一和第二保护路径中的对应的一个，而不是故障工作路径。
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公开(公告)号：US06407834B1
公开(公告)日：2002-06-18
申请号：US09153217
申请日：1998-09-14
申请人： Hitoshi Takeshita , Naoya Henmi
发明人： Hitoshi Takeshita , Naoya Henmi
IPC分类号： H04B1008
CPC分类号： H04J14/0295 , H04J14/0201 , H04J14/0227 , H04J14/0245 , H04J14/0249 , H04J14/0283 , H04J14/0284 , H04J14/0286
摘要： Optical regenerative relay amplifier 102 has a function for monitoring the power of optical signals from an optical fiber 101, and issuing an optical signal trouble detection signal (AIS (Alarm Indication Signal)) for shutting down the optical power in case that optical signal inputs are lost, and notifying the trouble, and optical ADMs 103 have a wavelength path selecting function, a wavelength path bundle function, and a wavelength path trouble or quality monitoring function in addition to an AIS issue function, and the optical cross-connect systems 104 have an AIS issue function, a function for monitoring a trouble or quality deterioration of optical signals for every wavelength path, a wavelength path grooming function, and a wavelength path protection function, and the terminal stations 105 transmit and receive services by optical signals having predetermined wavelengths, and monitoring a trouble or quality deterioration of optical signals for every wavelength path is conducted without depending on signal speed and format.
摘要翻译： 光学再生继电器放大器102具有用于监视来自光纤101的光信号的功率的功能，并且发出光信号故障检测信号（AIS（报警指示信号）），用于在光信号输入为 丢失并通知故障，除了AIS发布功能之外，光ADM103具有波长路径选择功能，波长路径束功能，波长路径故障或质量监视功能，并且光交叉连接系统104具有 AIS发布功能，用于监视每个波长路径的光信号的故障或质量恶化的功能，波长路径梳理功能和波长路径保护功能，并且终端105通过具有预定波长的光信号来发送和接收业务 并且对于每个波长路径监视光信号的故障或质量恶化进行 根据信号速度和格式。
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公开(公告)号：US06771907B1
公开(公告)日：2004-08-03
申请号：US09576240
申请日：2000-05-24
申请人： Yuuki Yoshifuji , Shuichi Iida , Takashi Yamazaki , Youko Nakabayashi , Shinya Nakamura , Kimio Ozawa , Naoki Ando , Hitoshi Kikuchi , Tukasa Haga , Hiromitu Watanabe , Minoru Shinta , Hitoshi Takeshita , Shinobu Sasaki , Ryou Yamada , Naoya Henmi
发明人： Yuuki Yoshifuji , Shuichi Iida , Takashi Yamazaki , Youko Nakabayashi , Shinya Nakamura , Kimio Ozawa , Naoki Ando , Hitoshi Kikuchi , Tukasa Haga , Hiromitu Watanabe , Minoru Shinta , Hitoshi Takeshita , Shinobu Sasaki , Ryou Yamada , Naoya Henmi
IPC分类号： H04J1400
CPC分类号： H04J14/0295 , H04J14/0227 , H04J14/0241 , H04J14/0283
摘要： An optical ring system having: a wavelength demultiplexer to which wavelength-multiplexed optical signal to be sent through an optical fiber from a previous node of multiple nodes is input and in which optical signal with each wavelength assigned to itself is demultiplexed; an optical ring device which is disposed in a predetermined node of the multiple nodes to the each wavelength assigned and which is composed of a failure existence judging part which terminates an overhead of each optical signal with a wavelength demultiplexed by the wavelength demultiplexer and judges whether a failure occurs in regard to a wavelength in a previous section through which optical signal with the assigned wavelength is sent, and a switching part which, when the failure existence judging means determines the occurrence of failure, selects a path that allows optical signal with the wavelength to be transmitted to the previous node while avoiding the previous section incurring the failure; and a wavelength multiplexer which multiplexes optical signal to be output from the optical ring part and then outputs it to an optical fiber connected to a next node.
摘要翻译： 一种光环系统，具有波长解复用器，通过来自多个节点的先前节点的光纤输入波分复用光信号，其中分配有每个波长的光信号被解复用; 光环设备，被布置在多个节点的预定节点到分配的每个波长，并且由故障存在判断部分组成，故障存在判断部分终止由波长解复用器解复用的波长的每个光信号的开销，并判断是否 关于发送了具有指定波长的光信号的先前部分中的波长发生故障，以及当故障存在判断装置确定故障发生时，选择允许具有波长的光信号的路径的切换部分 被发送到上一个节点，同时避免前一个部分发生故障; 以及多路复用从光环部分输出的光信号，然后将其输出到连接到下一个节点的光纤。
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公开(公告)号：US6061156A
公开(公告)日：2000-05-09
申请号：US16306
申请日：1998-01-30
申请人： Hitoshi Takeshita , Naoya Henmi
发明人： Hitoshi Takeshita , Naoya Henmi
IPC分类号： G02B6/00 , G02B6/122 , H04B10/03 , H04B10/032 , H04B10/079 , H04B10/2507 , H04B10/27 , H04B10/294 , H04B10/299 , H04M3/18 , H04Q3/52 , H04Q11/00 , H04J14/00 , H04J4/00 , H04J14/02 , H04J14/08
CPC分类号： H04Q11/0005 , H04Q2011/0011 , H04Q2011/0015 , H04Q2011/0043 , H04Q2011/0045 , H04Q2011/0052
摘要： In an optical transmission system comprising an optical branch unit, first through fourth OR/OS pairs each of which includes optical receiver and optical transmitter, optical switch devices for active and standby systems, each of the optical switch devices having an N number of input ports and M number of output ports; and an optical multiplexer for multiplexing an M number of optical signal supplied from the third OR/OS pair and an M number of optical signals supplied from the fourth OR/OS pair to produce an M number of optical signals, the optical switch devices and the first through the fourth OR/OS pairs have a 3-dB margin with respect to the input optical strength. First and second paths are each adjusted such that the time required for transmitting an optical signal is identical for all paths. The first path is from an output port of the optical branch unit to the point where the optical signals are multiplexed in the optical multiplexer via the first and the third OR/OS pairs, and the optical switch device for the active system. The second path is from an output port of the optical branch unit to the point where the optical signals are multiplexed in the optical multiplexer via the second and the fourth OR/OS pairs, and the optical switch device for the standby system.
摘要翻译： 在包括光分支单元的光传输系统中，第一到第四OR / OS对，其中每一个包括光接收器和光发射器，用于主动和待机系统的光开关装置，每个光开关装置具有N个输入端口 和M个输出端口; 以及光复用器，用于复用从第三OR / OS对提供的M个光信号和从第四OR / OS对提供的M个光信号，以产生M个光信号，光开关器件和 首先通过第四个OR / OS对相对于输入光强度具有3-dB的余量。 每个调整第一和第二路径，使得发送光信号所需的时间对于所有路径是相同的。 第一路径是从光分支单元的输出端口到光信号经由第一和第三OR / OS对复用在光复用器中的点，以及用于主动系统的光开关装置。 第二路径是从光分支单元的输出端口到光信号经由第二和第四OR / OS对复用在光复用器中的点，以及备用系统的光开关器件。
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9.发明授权Light receiving apparatus using DQPSK demodulation method, and DQPSK demodulation method 有权采用DQPSK解调方式的光接收装置，以及DQPSK解调方式公开(公告)号：US08165477B2
公开(公告)日：2012-04-24
申请号：US11951856
申请日：2007-12-06
CPC分类号： H04B10/677
摘要： The present invention provides a light receiving apparatus using the DQPSK demodulation method. The light receiving apparatus comprises: one Mach-Zehnder interferometer for branching a received light signal into light signals at two arms to allow the branched two light signals to interfere with each other; one balanced photoelectric converter for converting the two interfered light signals, by using the Mach-Zehnder interferometer, into an electric signal corresponding to a difference between light intensities of the two light signals; and a phase adjuster for dynamically shifting the phase of a light signal passed through one of the two arms at the Mach-Zehnder interferometer.
摘要翻译： 本发明提供一种使用DQPSK解调方法的光接收装置。 光接收装置包括：一个马赫 - 曾德干涉仪，用于将接收到的光信号分成两个臂的光信号，以允许分支的两个光信号相互干扰; 一个平衡光电转换器，用于通过使用马赫 - 策德尔干涉仪将两个干涉光信号转换成对应于两个光信号的光强度差的电信号; 以及相位调整器，用于在Mach-Zehnder干涉仪上动态地移动通过两个臂中的一个的光信号的相位。
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10.发明申请Dpsk Modulation-Demodulation Method, and Optical Communication Device and Optical Communication System Using the Same 有权Dpsk调制解调方法，以及使用其的光通信设备和光通信系统公开(公告)号：US20080232815A1
公开(公告)日：2008-09-25
申请号：US11916612
申请日：2006-06-28
CPC分类号： H04J14/08 , H04B10/5561 , H04B10/66 , H04J14/02
摘要： In the optical communication device and the optical communication system using DPSK modulation whose cost is low, whose size is small and whose power consumption is low, the N:1 multiplexer 125 generates a serial signal by multiplexing a parallel signal coded by the DPSK modulation coding units 115˜117 bit by bit on a time division basis. The electric-phase modulation optical converter 127 converts a serial signal into a phase modulation light. The N-bit delay interferometer 132 executes DPSK decoding with respect to a phase modulation light by comparison with an N-bit preceding optical signal. The optical-electric signal converter 134 converts a decoded intensity modulation light into an electric signal. The N:1 demultiplexer 136 divides an electric signal converted by the optical-electric signal converter 134 into a number N of signals bit by bit on a time division basis.
摘要翻译： 在光通信设备和使用成本低，尺寸小并且功耗低的DPSK调制的光通信系统中，N：1多路复用器125通过多路复用由DPSK调制编码编码的并行信号来生成串行信号 单位115〜117，按时间划分。 电相调制光转换器127将串行信号转换为相位调制光。 N位延迟干涉仪132通过与N位在前的光信号进行比较来执行相对于相位调制光的DPSK解码。 光电信号转换器134将解码的强度调制光转换成电信号。 N：1解复用器136将由光电信号转换器134转换的电信号分时分割为数字N个信号。
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