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1. 发明授权

US08909063B2 Optical QPSK signal regeneration and amplification 有权
标题翻译：光QPSK信号再生和放大
公开(公告)号：US08909063B2
公开(公告)日：2014-12-09
申请号：US13665254
申请日：2012-10-31
申请人： Fujitsu Network Communications, Inc.
发明人： Jeng-Yuan Yang , Youichi Akasaka , Motoyoshi Sekiya , Inwoong Kim
IPC分类号： H04B10/291
CPC分类号： H04B10/5561 , H04B10/293 , H04L27/2096
摘要： A method for regenerating and amplifying optical signals includes determining a source optical signal, adding a first pump optical signal and a second pump optical signal to the source optical signal to yield an intermediate optical signal, duplicating the intermediate optical signal to yield a first duplicate signal and a second duplicate signal, phase-shifting the first duplicate signal, passing the phase-shifted first duplicate signal and the second duplicate signal bi-directionally through a nonlinear optical element, and performing degenerate phase-sensitive amplification on the phase-shifted first duplicate signal and the second duplicate signal.
摘要翻译：一种用于再生和放大光信号的方法包括确定源光信号，将第一泵浦光信号和第二泵浦光信号加到源光信号上以产生中间光信号，复制中间光信号以产生第一重复信号以及第二重复信号，相移第一重复信号，使相移的第一重复信号和第二重复信号双向通过非线性光学元件，并对相移的第一副本执行简并相位放大信号和第二重复信号。

2. 发明申请

US20140325835A1 METHOD AND SYSTEM FOR POWER CONNECTOR REMOVAL 有权
标题翻译：电源连接器拆卸方法和系统
公开(公告)号：US20140325835A1
公开(公告)日：2014-11-06
申请号：US13886837
申请日：2013-05-03
申请人： FUJITSU NETWORK COMMUNICATIONS, INC.
发明人： Jimmy Kevin Cloer
IPC分类号： H01R43/20 , H01R43/26
CPC分类号： H01R43/205 , Y10T29/49124 , Y10T29/53274
摘要： A system for removing a plurality of connectors from a circuit board includes two clamp plates. The system includes a divider plate coupled between the two clamp plates. The divider plate is configured to be positioned between adjacent rows of the plurality of connectors. The system further includes a tightening mechanism to tighten the clamp plates and the plurality of pin plates around the plurality of connectors. The system also includes an ejector coupled to the divider plate. The ejector includes a slot that corresponds to a projection on the divider plate, and the divider plate is configured to slide relative to the ejector.
摘要翻译：用于从电路板去除多个连接器的系统包括两个夹板。该系统包括联接在两个夹板之间的分隔板。分隔板构造成位于多个连接器的相邻行之间。该系统还包括紧固机构，用于将夹紧板和多个销板紧固在多个连接器周围。该系统还包括联接到分隔板的喷射器。喷射器包括对应于分隔板上的突起的槽，并且分隔板构造成相对于喷射器滑动。

3. 发明申请

US20040212871A1 Method and system for forward pumping raman amplification in an optical network 有权
标题翻译：光网络中正向泵浦拉曼放大的方法和系统
公开(公告)号：US20040212871A1
公开(公告)日：2004-10-28
申请号：US10194016
申请日：2002-07-12
申请人： Fujitsu Network Communications, Inc.
发明人： Takeshi Hoshida , Seemant Choudhary
IPC分类号： H01S003/00
CPC分类号： H04B10/2916
摘要： An optical communication system includes a plurality of nodes coupled by an optical fiber. The optical fiber comprises a gain medium and is operable to transmit optical signals in a plurality of channels. An optical pump is coupled to the optical fiber, and is operable to generate and transmit an optical pump signal co-propagating with the optical signals. The optical pump signal comprises a specified walk-off with respect to the optical signals and is operable to Raman amplify the signals in the optical fiber while maintaining an eye penalty below 0.5 decibels.
摘要翻译：光通信系统包括通过光纤耦合的多个节点。光纤包括增益介质，并且可操作以在多个通道中传输光信号。光泵耦合到光纤，并且可操作地产生和传输与光信号共传播的光泵信号。光泵浦信号包括相对于光信号的指定走向，并且可操作以拉曼放大光纤中的信号，同时保持低于0.5分贝的眼睛惩罚。

4. 发明申请

US20040201482A1 Method and system for monitoring the thermal status of a card shelf 有权
标题翻译：用于监测卡架热状态的方法和系统
公开(公告)号：US20040201482A1
公开(公告)日：2004-10-14
申请号：US10831475
申请日：2004-04-23
申请人： Fujitsu Network Communications, Inc. California Corporation
发明人： Albert Pedoeem , Steven J. Brolin , James F. Burnell
IPC分类号： G08B017/00
CPC分类号： H05K7/20581 , H05K7/207
摘要： A method for monitoring the operating temperature of an item on a card shelf having a plurality of discrete electronic cards includes receiving a measured temperature for an item on a card shelf that is indicative of an operating temperature of the item. The method also includes determining whether the item is operating above a specified limit using the measured temperature and information stored in a memory that relates the measured temperature to the operating temperature of the item. Furthermore, the method includes determining whether there has been a restriction of air flow through the card shelf in response to determining whether the item is operating above a specified limit.
摘要翻译：用于监测具有多个离散电子卡的卡片架上的物品的操作温度的方法包括：接收用于表示物品的工作温度的卡架上的物品的测量温度。该方法还包括使用所测量的温度以及存储在存储器中的所述测量温度与所述物品的工作温度相关联来确定所述物品是否高于指定极限。此外，该方法包括响应于确定物品是否在高于指定极限的运行来确定是否已经通过卡架的空气流的限制。

5. 发明申请

US20040008404A1 Distributed raman amplifier for optical network and method 失效
标题翻译：光网络分布式拉曼放大器及方法
公开(公告)号：US20040008404A1
公开(公告)日：2004-01-15
申请号：US10193538
申请日：2002-07-11
申请人： Fujitsu Network Communications, Inc.
发明人： Yasuhiko Aoki , Susumu Kinoshita
IPC分类号： H01S003/00
CPC分类号： H04J14/0204 , H04B10/2916 , H04J14/0205 , H04J14/0206 , H04J14/021 , H04J14/0213
摘要： An optical ring is operable to transport traffic signals between nodes. A Raman pump source is coupled to the optical ring. The Raman pump source is operable to provide pump power to at least a portion of the optical fiber ring. Each node comprises an optical splitter operable to at least passively drop traffic to the optical fiber ring. Each node further comprises a pump filter operable to separate at the node the pump power from traffic signals.
摘要翻译：光环可操作以在节点之间传送业务信号。拉曼泵浦源耦合到光学环。拉曼泵浦源可操作以向至少一部分光纤环提供泵浦功率。每个节点包括光分路器，其可操作以至少被动地将流量降低到光纤环。每个节点还包括泵过滤器，其可操作以在节点处将泵功率与交通信号分离。

6. 发明申请

US20030184851A1 Control system and method for an optical amplifier 有权
标题翻译：光放大器的控制系统和方法
公开(公告)号：US20030184851A1
公开(公告)日：2003-10-02
申请号：US10107727
申请日：2002-03-26
申请人： Fujitsu Network Communications, Inc.
发明人： Cechan Tian , Susumu Kinoshita , Joseph R. Rodriguez
IPC分类号： H01S003/00
CPC分类号： H04B10/2931
摘要： A method and system for controlling the gain of the amplification of an optical signal is provided that includes both electrical feedforward and feedback. In a feedforward portion of an optical amplifier, the method includes receiving an optical signal and measuring an input power. Based on the measured input power and a desired gain, a feedforward pump power is determined. The pump power is adjusted based on the determined pump power. In a feedback portion of an optical amplifier, an output power is measured and gain is determined based on the output power and the measured input power. The measured gain is compared to a desired gain and the pump power is adjusted based on that comparison.
摘要翻译：提供了一种用于控制光信号的放大增益的方法和系统，其包括电前馈和反馈。在光放大器的前馈部分中，该方法包括接收光信号并测量输入功率。基于测量的输入功率和期望的增益，确定前馈泵功率。泵功率根据确定的泵功率进行调节。在光放大器的反馈部分中，测量输出功率，并且基于输出功率和测量的输入功率来确定增益。将测量的增益与期望的增益进行比较，并且基于该比较来调整泵功率。

7. 发明申请

US20030147400A1 Optimizing path selection for multiple service classes in a network 有权
标题翻译：优化网络中多个服务类的路径选择
公开(公告)号：US20030147400A1
公开(公告)日：2003-08-07
申请号：US10061426
申请日：2002-02-01
申请人： Fujitsu Network Communications, Inc.
发明人： Bharathi B. Devi
IPC分类号： H04L012/56
CPC分类号： H04L45/00 , H04L45/123 , H04L45/125 , H04L45/302
摘要： A method for routing traffic in a network includes determining topology information for the network and determining traffic demands for multiple service classes. The method further includes determining an objective function for an optimization problem using the topology information and demands, and determining a solution to that specifies a network path for each demand.
摘要翻译：一种用于在网络中路由业务的方法包括确定网络的拓扑信息并确定多个业务类别的业务需求。该方法还包括使用拓扑信息和需求来确定优化问题的目标函数，以及确定针对每个需求的网络路径的解决方案。

8. 发明授权

US09838118B2 Skew compensation in an optical coherent transponder 有权
公开(公告)号：US09838118B2
公开(公告)日：2017-12-05
申请号：US15149733
申请日：2016-05-09
申请人： Fujitsu Network Communications, Inc.
发明人： Emilio Bravi
IPC分类号： H04B10/07 , H04B10/079 , H04L7/00
CPC分类号： H04B10/07955 , H04B10/548 , H04L7/0041 , H04L7/0075 , H04L27/364
摘要： Systems and methods for reducing total skew in optical signals transmitted by optical coherent transponders without measuring the total skew are disclosed. The method may compensate for the in-phase/quadrature (I/Q) skew of optical signals in complex modulation formats. It may include providing input to a transponder to produce a periodic (and generally sinusoidal) output signal, providing the signal to an optical power meter, measuring the optical power of positive and negative harmonics of the signal while varying the amount of skew introduced by a de-skewing filter in the transponder, identifying the amount of skew introduced by the de-skewing filter when the minimum optical power measurement is taken, and causing the amount of skew introduced by the de-skewing filter to equal the identified skew offset by a one-half symbol delay. The system may provide better skew compensation using less expensive equipment than de-skewing methods based on existing skew measurement methods.

9. 发明申请

US20040242237A1 Method and system for handling asynchronous transfer (ATM) call set-ups 失效
标题翻译：用于处理异步传输（ATM）呼叫建立的方法和系统
公开(公告)号：US20040242237A1
公开(公告)日：2004-12-02
申请号：US10715644
申请日：2003-11-17
申请人： Fujitsu Network Communications, Inc.
发明人： Bradford J. Dobson
IPC分类号： H04Q007/20
CPC分类号： H04Q11/0478 , H04L2012/563 , H04L2012/5631
摘要： A method for handling call set-ups in a telecommunications network. The method includes receiving a request to set up a call. A dynamic load value is compared to a load threshold. The call is allowed to be set up when the dynamic load value is less than the load threshold.
摘要翻译：一种在电信网络中处理呼叫建立的方法。该方法包括接收建立呼叫的请求。将动态负载值与负载阈值进行比较。当动态负载值小于负载阈值时，允许呼叫建立。

10. 发明申请

US20040208520A1 Optical signaling to share active channel information 有权
标题翻译：光信号共享活动信道信息
公开(公告)号：US20040208520A1
公开(公告)日：2004-10-21
申请号：US10161274
申请日：2002-05-31
申请人： Fujitsu Network Communications, Inc.
发明人： Paparao Palacharla , Hok Yong Pua , Emir Catovic , Harbhajan Virdee
IPC分类号： H04B010/08 , H04B010/12
CPC分类号： H04J14/0291 , H04B10/0771 , H04B10/0775 , H04B2210/078 , H04J14/0221 , H04J14/0227 , H04J14/0246 , H04J14/025 , H04J14/0283 , H04J14/0287 , H04J14/0297
摘要： A method for optical supervisory signaling includes determining a wavelength channel status (WCS) value, a wavelength channel failure (WCF) value, and a wavelength channel lit (WCL) value for each one of multiple data channels services by an optical communication node. The method further includes communicating the values to a second optical communication node.
摘要翻译：一种用于光监控信号的方法包括由光通信节点确定多个数据信道业务中的每一个的波长信道状态（WCS）值，波长信道故障（WCF）值和波长信道点亮（WCL）值。该方法还包括将值传送到第二光通信节点。

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