公开(公告)号：US20070036548A1

公开(公告)日：2007-02-15

申请号：US11546075

申请日：2006-10-11

申请人： Xiaodong Duan ,  Xiaofeng Yan ,  Giovanni Barbarossa

发明人： Xiaodong Duan ,  Xiaofeng Yan ,  Giovanni Barbarossa

IPC分类号： H04J14/02

CPC分类号： H04J14/02 ,  H04B10/07953 ,  H04J14/0201 ,  H04J14/0209 ,  H04J14/0221

摘要： An OADM structure is disclosed with distributed optical performance monitor cells that utilize drop channels for OSNR measurement. The OSNR measurement is computed by calculating the electric noise spectrum density from the Fast Fourier Transform of a sample spectrum and from a frequency range based on traffic protocol and transmission rate, as well as considering the average optical power of the sample points.

摘要翻译： 公开了一种利用分散信道进行OSNR测量的分布式光学性能监视器单元的OADM结构。 通过从采样频谱的快速傅里叶变换和基于通信协议和传输速率的频率范围计算电噪声频谱密度，以及考虑采样点的平均光功率来计算OSNR测量。

公开(公告)号：US20100061726A1

公开(公告)日：2010-03-11

申请号：US12207450

申请日：2008-09-09

申请人： Giovanni Barbarossa ,  Xiaodong Duan ,  Samuel Liu

发明人： Giovanni Barbarossa ,  Xiaodong Duan ,  Samuel Liu

IPC分类号： H04J14/00

CPC分类号： H04J14/028 ,  H04J14/0206 ,  H04J14/0212 ,  H04J14/0226 ,  H04J14/0227 ,  H04Q11/0062 ,  H04Q11/0071

摘要： An Ethernet switch is used to dynamically reconfigure an optical network having a fixed optical layer. The Ethernet switch is incorporated into a transmission node of the optical network to selectively route data streams received through its input channels to one of the output channels. The data streams at the output channels are multiplexed into multiple wavelength channels of a multiplexed optical signal, and the wavelength channels are selectively dropped at local nodes of the optical network. In addition, the Ethernet switch can be used to reroute data from a single data stream to multiple wavelength channels, and thereby perform sub-wavelength multiplexing.

摘要翻译： 以太网交换机用于动态地重新配置具有固定光层的光网络。 以太网交换机被并入到光网络的传输节点中以选择性地将通过其输入信道接收的数据流路由到输出信道之一。 输出通道的数据流被复用到复用光信号的多个波长信道中，波长信道被选择性地丢弃在光网络的本地节点处。 此外，以太网交换机可以用于将数据从单个数据流重新路由到多个波长信道，从而执行子波长复用。

公开(公告)号：US08081877B2

公开(公告)日：2011-12-20

申请号：US12117545

申请日：2008-05-08

申请人： Xiaodong Duan ,  Giovanni Barbarossa

发明人： Xiaodong Duan ,  Giovanni Barbarossa

IPC分类号： H04J14/08 ,  H04B10/12

CPC分类号： H04B10/0775 ,  H04B10/2513

摘要： A method of determining an optical distance between two nodes of an optical network for chromatic dispersion compensation includes using existing optical supervisory channel components in each node to measure the “time-of-flight” of an optical signal having a known wavelength. The effective optical distance is determined based on the time-of-flight and known wavelength of the optical signal. The computed optical distance may then be used to compensate for the dispersion experienced by the optical signal when transmitted between the two nodes. Advantageously, the method allows tunable dispersion compensation of a wavelength channel to be periodically optimized at each node in response to incremental changes in environmental factors that affect the chromatic dispersion produced between the two nodes or in response to reconfigurations that affect the chromatic dispersion produced between the two nodes.

摘要翻译： 确定用于色散补偿的光网络的两个节点之间的光学距离的方法包括使用每个节点中的现有光监控信道分量来测量具有已知波长的光信号的“飞行时间”。 基于飞行时间和光信号的已知波长确定有效的光学距离。 然后可以使用计算出的光学距离来补偿在两个节点之间传输时由光信号经历的色散。 有利地，该方法允许波长信道的可调谐色散补偿响应于影响两个节点之间产生的色散的环境因素的增量变化或响应影响在两个节点之间产生的色散的重新配置而在每个节点周期性地优化 两个节点。

公开(公告)号：US20100014858A1

公开(公告)日：2010-01-21

申请号：US12173723

申请日：2008-07-15

申请人： Giovanni Barbarossa ,  Xiaodong Duan ,  Samuel Liu

发明人： Giovanni Barbarossa ,  Xiaodong Duan ,  Samuel Liu

IPC分类号： H04J14/00

CPC分类号： H04Q11/0062 ,  H04J14/0227 ,  H04L49/351 ,  H04L49/557 ,  H04Q2011/0081

摘要： Packet loss in an optical network transporting Ethernet-based data traffic is reduced using a switch in a transmitting node. When the transmitting node of the optical network detects a fault in an optical link, the switch buffers incoming data traffic until the optical link is reestablished. The switch may be an Ethernet switch that re-routes data traffic along one or more additional optical fibers that are connected in parallel with a defunct optical fiber to reestablish the optical link between two nodes. The switch may also be an optical switch that is configured to re-route optical data traffic from a defunct optical fiber to a redundant optical fiber.

摘要翻译： 传输基于以太网的数据业务的光网络中的分组丢失使用发射节点中的交换机来减少。 当光网络的发送节点检测到光链路中的故障时，交换机缓冲输入数据流量，直到光链路重新建立。 交换机可以是以太网交换机，其沿着与停用的光纤并联连接的一个或多个附加光纤重新路由数据业务以重新建立两个节点之间的光链路。 交换机也可以是被配置为将光数据业务从停用光纤重新路由到冗余光纤的光学交换机。

公开(公告)号：US20090279890A1

公开(公告)日：2009-11-12

申请号：US12117545

申请日：2008-05-08

申请人： Xiaodong Duan ,  Giovanni Barbarossa

发明人： Xiaodong Duan ,  Giovanni Barbarossa

IPC分类号： H04B10/20

CPC分类号： H04B10/0775 ,  H04B10/2513

摘要： A method of determining an optical distance between two nodes of an optical network for chromatic dispersion compensation includes using existing optical supervisory channel components in each node to measure the “time-of-flight” of an optical signal having a known wavelength. The effective optical distance is determined based on the time-of-flight and known wavelength of the optical signal. The computed optical distance may then be used to compensate for the dispersion experienced by the optical signal when transmitted between the two nodes. Advantageously, the method allows tunable dispersion compensation of a wavelength channel to be periodically optimized at each node in response to incremental changes in environmental factors that affect the chromatic dispersion produced between the two nodes or in response to reconfigurations that affect the chromatic dispersion produced between the two nodes.

摘要翻译： 确定用于色散补偿的光网络的两个节点之间的光学距离的方法包括使用每个节点中的现有光监控信道分量来测量具有已知波长的光信号的“飞行时间”。 基于飞行时间和光信号的已知波长确定有效的光学距离。 然后可以使用计算出的光学距离来补偿在两个节点之间传输时由光信号经历的色散。 有利地，该方法允许波长信道的可调谐色散补偿响应于影响两个节点之间产生的色散的环境因素的增量变化或响应影响在两个节点之间产生的色散的重新配置而在每个节点周期性地优化 两个节点。

公开(公告)号：US20090185262A1

公开(公告)日：2009-07-23

申请号：US12018125

申请日：2008-01-22

申请人： Xiaodong Duan ,  Giovanni Barbarossa

发明人： Xiaodong Duan ,  Giovanni Barbarossa

IPC分类号： H04B10/12

CPC分类号： H01S3/06754 ,  H01S3/094003 ,  H01S3/094076 ,  H01S3/09415 ,  H01S3/2383 ,  H04B10/291

摘要： An optical amplifier that is configured to amplify multiple optical signals using time-multiplexed optical energy pulses. The time-multiplexed optical energy pulses are supplied to multiple gain blocks of the optical amplifier in an alternating manner and each of the gain blocks uses the optical energy pulses that it receives to amplify one of the multiple optical signals. An optical amplifier may be configured with an optical switch to perform a switching function to direct the time-multiplexed optical energy pulses received from the pump laser to the gain blocks in an alternating manner. The total optical energy contained in each optical energy pulse may be independently controlled by varying its duty cycle or amplitude.

摘要翻译： 一种光放大器，被配置为使用时分复用光能脉冲放大多个光信号。 时间复用光能脉冲以交替方式提供给光放大器的多个增益块，并且每个增益块使用其接收的光能脉冲来放大多个光信号之一。 光学放大器可以配置有光学开关，以执行切换功能，以将交替的方式引导从泵浦激光器接收的时间复用光能脉冲到增益块。 可以通过改变其占空比或幅度来独立地控制包含在每个光能脉冲中的总光能。

公开(公告)号：US07885546B2

公开(公告)日：2011-02-08

申请号：US11877621

申请日：2007-10-23

申请人： Samuel Liu ,  Xiaodong Duan ,  Giovanni Barbarossa

发明人： Samuel Liu ,  Xiaodong Duan ,  Giovanni Barbarossa

IPC分类号： H04J14/08

CPC分类号： H04L12/465 ,  H04L49/351

摘要： A method and apparatus for multiplexing multiple Ethernet-based data streams in an optical network reduce the number of optical transceivers required by the optical network. Multiple data streams are multiplexed into a combined data stream, transmitted from a node in the optical network as the combined data stream, and demultiplexed at the receiving node. Data streams are multiplexed and demultiplexed at the bit level, and packets from each data stream are routed based on a VLAN tag that is contained in the header of each packet. By transmitting the information contained in multiple data streams as a single multiplexed data stream, the number of optical transceivers required for the optical network may be reduced by more than half. An optical supervisory channel may also be bundled with one of the data streams to eliminate the need for a dedicated transceiver for the optical supervisory channel.

摘要翻译： 用于在光网络中复用多个基于以太网的数据流的方法和装置减少了光网络所需的光收发器的数量。 多个数据流被复用到组合数据流中，作为组合数据流从光网络中的节点发送，并在接收节点解复用。 数据流在比特级别被复用和解复用，并且来自每个数据流的分组基于包含在每个分组的报头中的VLAN标签来路由。 通过将包含在多个数据流中的信息作为单个复用数据流发送，光网络所需的光收发器的数量可以减少一半以上。 光学监控信道也可以与数据流中的一个捆绑在一起，以消除对用于光学监控信道的专用收发器的需要。

公开(公告)号：US10143364B2

公开(公告)日：2018-12-04

申请号：US14807681

申请日：2015-07-23

申请人： Xiaodong Duan ,  Xinhong Wang ,  Guohua Xiao

发明人： Xiaodong Duan ,  Xinhong Wang ,  Guohua Xiao

IPC分类号： A61B1/04 ,  A61B1/00

摘要： Controlling an image capturing process by tracking the positions of the capsule endoscope is described. The images are taken only when there is either new position and/or new orientation change of the capsule endoscope. The method described effectively decreases the total amount of images that a doctor needs to review, and improves the power consumption of the capsule endoscope examination process.

公开(公告)号：US08897201B2

公开(公告)日：2014-11-25

申请号：US13202432

申请日：2010-02-10

申请人： Jin Peng ,  Naibao Zhou ,  Xiaodong Duan ,  Yunfei Zhang ,  Yichuan Wu ,  Hongluan Liao

发明人： Jin Peng ,  Naibao Zhou ,  Xiaodong Duan ,  Yunfei Zhang ,  Yichuan Wu ,  Hongluan Liao

IPC分类号： H04B7/14 ,  H04J1/10 ,  H04J3/08 ,  H04W4/24 ,  H04L12/14 ,  H04M15/00

CPC分类号： H04L12/14 ,  H04L12/1403 ,  H04M15/70 ,  H04M15/73 ,  H04W4/24

摘要： A method and an apparatus for acquiring a contribution value of a transfer node are disclosed. The method includes: acquiring charging information of a trust node which is in a trust network circumstance and joining in a session, and acquiring charging information of the transfer node which is in a distrust network circumstance and joining in the session; auditing the consistency of charging information between the transfer node and the trust node; computing the contribution value of the transfer node according to the auditing result and the charging information of the transfer node. The invention can effectively guarantee acquiring the contribution value of the transfer node truly and unfailingly in a distrust circumstance of network circumstance, and subsequently providing basis for rewarding the node which has contributed for transferring.

摘要翻译： 公开了一种用于获取传送节点的贡献值的方法和装置。 该方法包括：获取处于信任网络环境中并加入会话的信任节点的计费信息，获取处于不信任网络环境并加入会话的传输节点的计费信息; 审计传输节点与信任节点之间计费信息的一致性; 根据审计结果和传输节点的计费信息计算传输节点的贡献值。 本发明可以有效地保证在网络环境不信任的情况下真实，可靠地获取传输节点的贡献价值，为获得转移贡献的节点提供依据。

公开(公告)号：US08701677B2

公开(公告)日：2014-04-22

申请号：US12753931

申请日：2010-04-05

申请人： Xiaodong Duan ,  Guohua Xiao ,  Xinhong Wang

发明人： Xiaodong Duan ,  Guohua Xiao ,  Xinhong Wang

IPC分类号： A61B19/00 ,  G01R33/02 ,  G01R33/025

CPC分类号： A61B5/07 ,  A61B1/00158 ,  A61B1/041 ,  A61B5/062 ,  A61B34/20 ,  A61B90/361 ,  A61B2034/2051

摘要： The invention provides methods and systems for determining the position of a remote object such as an in vivo medical device such as capsule or probe within a medical patient. The systems and methods of the invention may also be used in other enclosed environments such as fluid handling or mechanical systems. The systems and methods of the invention use one or more external magnetic sensor arrays for sensing the magnetic field of a remote object within a target area. The position of the object is determined by applying magnetic field spatial geometry characterization point analysis to evaluate the sensed magnetic field.

摘要翻译： 本发明提供了用于确定远程物体（例如医疗患者体内医疗装置例如胶囊或探针）的位置的方法和系统。 本发明的系统和方法也可用于其它封闭的环境中，例如流体处理或机械系统。 本发明的系统和方法使用一个或多个外部磁传感器阵列来感测目标区域内的远程物体的磁场。 通过应用磁场空间几何特征点分析来评估物体的位置来评估感测磁场。