公开(公告)号：US08553534B2

公开(公告)日：2013-10-08

申请号：US12809870

申请日：2007-12-21

申请人： Andrea Allasia ,  Marco Schiano ,  Laura Serra ,  Luigi Varetto

发明人： Andrea Allasia ,  Marco Schiano ,  Laura Serra ,  Luigi Varetto

IPC分类号： H04L12/26 ,  H04L12/437

CPC分类号： H04L12/437 ,  H04J3/14 ,  H04L12/433 ,  H04L41/0654 ,  H04L45/16 ,  H04L45/22 ,  H04L45/28

摘要： Delivering multicast data traffic over a communication network includes a first network node delivering multicast data traffic to second network nodes. The first and second network nodes are connected by a transmission network in a ring architecture and implement a point-to-multipoint layer 2 protocol. A method includes at the first network node: collecting alarms signals indicative of a failure along the whole ring and of the second network nodes. Based on a current state of the alarm signals, delivering the multicast data traffic either in a first delivery direction along the ring, or in a second delivery direction along the ring opposite to the first delivery direction, or in both the first and second delivery directions. At each of the second network nodes: collecting alarm signals indicative of a failure of the transmission network locally to the second network node and of the second network node. Based on a current state of the local alarm signals either receiving the multicast data traffic delivered by the first network node from the first direction, forwarding the multicast data traffic in the first direction and transmitting local data traffic to the first network node along the second delivery direction, or receiving the data traffic delivered by the first network node from the second direction, forwarding the multicast data traffic in the second direction and transmitting the local data traffic to the first network node along the first delivery direction.

摘要翻译： 通过通信网络传送组播数据流量包括向第二网络节点传送多播数据业务的第一网络节点。 第一和第二网络节点通过环形架构中的传输网络连接，并实现点对多点二层协议。 一种方法包括在第一网络节点处：收集指示沿整个环和第二网络节点发生故障的报警信号。 基于报警信号的当前状态，沿着环沿着第一传送方向或者沿着与第一传送方向相反的环的第二传送方向，或者在第一和第二传送方向 。 在每个第二网络节点处：向第二网络节点和第二网络节点收集表示传输网络故障本地的报警信号。 基于本地报警信号的当前状态，其从第一方向接收由第一网络节点传送的组播数据业务，沿着第一方向转发组播数据业务，并沿着第二传送向本地数据业务发送本地数据业务到第一网络节点 或者从第二方向接收由第一网络节点传送的数据业务，在第二方向转发组播数据业务，并沿着第一传送方向将本地数据业务发送到第一网络节点。

公开(公告)号：US20100271935A1

公开(公告)日：2010-10-28

申请号：US12809870

申请日：2007-12-21

申请人： Andrea Allasia ,  Marco Schiano ,  Laura Serra ,  Luigi Varetto

发明人： Andrea Allasia ,  Marco Schiano ,  Laura Serra ,  Luigi Varetto

IPC分类号： H04L12/24

CPC分类号： H04L12/437 ,  H04J3/14 ,  H04L12/433 ,  H04L41/0654 ,  H04L45/16 ,  H04L45/22 ,  H04L45/28

摘要： Delivering multicast data traffic over a communication network includes a first network node delivering multicast data traffic to second network nodes. The first and second network nodes are connected by a transmission network in a ring architecture and implement a point-to-multipoint layer 2 protocol. A method includes at the first network node: collecting alarms signals indicative of a failure along the whole ring and of the second network nodes. Based on a current state of the alarm signals, delivering the multicast data traffic either in a first delivery direction along the ring, or in a second delivery direction along the ring opposite to the first delivery direction, or in both the first and second delivery directions. At each of the second network nodes: collecting alarm signals indicative of a failure of the transmission network locally to the second network node and of the second network node. Based on a current state of the local alarm signals either receiving the multicast data traffic delivered by the first network node from the first direction, forwarding the multicast data traffic in the first direction and transmitting local data traffic to the first network node along the second delivery direction, or receiving the data traffic delivered by the first network node from the second direction, forwarding the multicast data traffic in the second direction and transmitting the local data traffic to the first network node along the first delivery direction.

摘要翻译： 通过通信网络传送组播数据流量包括向第二网络节点传送多播数据业务的第一网络节点。 第一和第二网络节点通过环形架构中的传输网络连接，并实现点对多点二层协议。 一种方法包括在第一网络节点处：收集指示沿整个环和第二网络节点发生故障的报警信号。 基于报警信号的当前状态，沿着环沿着第一传送方向或者沿着与第一传送方向相反的环的第二传送方向，或者在第一和第二传送方向 。 在每个第二网络节点处：向第二网络节点和第二网络节点收集指示传输网络故障本地的报警信号。 基于本地报警信号的当前状态，其从第一方向接收由第一网络节点传送的组播数据业务，沿着第一方向转发组播数据业务，并沿着第二传送向本地数据业务发送本地数据业务到第一网络节点 或者从第二方向接收由第一网络节点传送的数据业务，在第二方向转发组播数据业务，并沿着第一传送方向将本地数据业务发送到第一网络节点。

公开(公告)号：US20050179889A1

公开(公告)日：2005-08-18

申请号：US10509905

申请日：2002-04-09

申请人： Marco Schiano

发明人： Marco Schiano

IPC分类号： G01M11/00 ,  G01N21/00

CPC分类号： G01M11/3118 ,  G01M11/3163

摘要： The present invention relates to an apparatus (10) that allows to characterise or measure the chromatic dispersion in an optical fibre segment (50) by accessing a single end of the fibre itself (50) and measuring the phase shift between modulating signals of impulsive kind generated by a signal generator (12) and the same modulation signals reflected by a remote end of the fibre (51). The invention further relates to the method for measuring the chromatic dispersion of the optical fibre (50). Thanks to the invention, the apparatus (10) does not require an absolute external reference signal and allows to determine the chromatic dispersion of the fibre (50) being measured as the wavelength of the optical signals varies.

摘要翻译： 本发明涉及一种允许通过访问光纤本身（50）的单端来测量光纤段（50）中的色散并测量脉冲类调制信号之间的相移的装置（10） 由信号发生器（12）产生的信号和由光纤（51）的远端反射的相同的调制信号。 本发明还涉及用于测量光纤（50）的色散的方法。 由于本发明，装置（10）不需要绝对外部参考信号，并且允许确定随着光信号的波长变化而被测量的光纤（50）的色散。

公开(公告)号：US07349077B2

公开(公告)日：2008-03-25

申请号：US10520687

申请日：2003-07-02

申请人： Renato Caponi ,  Marcello Potenza ,  Diego Roccato ,  Marco Schiano

发明人： Renato Caponi ,  Marcello Potenza ,  Diego Roccato ,  Marco Schiano

IPC分类号： G01N21/00

CPC分类号： G01M11/336

摘要： The present invention relates to a new model for interpreting interferometric measurements, able to lead to a new method, system (10) and device (27) for measuring the PMD (Polarisation Mode Dispersion) of an optical fibre (11). The model, which is based on the theory of propagation of the optical signal as can be determined according to the socalled Prindpal States of Polarisation (PSPs) of the fibre, leads to a new interpretation of the interferogram generated with the interferometric measurements and is characterized in that it identifies in said interferogram a central peak and two side lobes. Thanks to this new model, it is possible to determine the PMD of the fibre based on the information content associated to at least one of the two side lobes identified in the interferogram.

摘要翻译： 本发明涉及用于解释干涉测量的新模型，能够导出用于测量光纤（11）的PMD（偏振模色散）的新方法，系统（10）和装置（27）。 该模型基于光信号的传播理论，可以根据所谓的光纤偏振态（PSP）来确定，导致对用干涉测量产生的干涉图的新的解释，并被表征 因为它在所述干涉图中识别出中心峰和两个旁瓣。 由于这种新型号，可以基于与干涉图中识别的两个旁瓣中的至少一个相关联的信息内容来确定光纤的PMD。

公开(公告)号：US20060023224A1

公开(公告)日：2006-02-02

申请号：US10520687

申请日：2003-07-02

申请人： Renato Caponi ,  Marcello Potenza ,  Diego Roccato ,  Marco Schiano

发明人： Renato Caponi ,  Marcello Potenza ,  Diego Roccato ,  Marco Schiano

IPC分类号： G01B9/02

CPC分类号： G01M11/336

摘要： The present invention relates to a new model for interpreting interferometric measurements, able to lead to a new method, system (10) and device (27) for measuring the PMD (Polarisation Mode Dispersion) of an optical fibre (11). The model, which is based on the theory of propagation of the optical signal as can be determined according to the socalled Prindpal States of Polarisation (PSPs) of the fibre, leads to a new interpretation of the interferognram generated with the interferometric measurements and is characterised in that it identifies in said interferogramn a central peak and two side lobes. Thanks to this new model, it is possible to determine the PMD of the fibre based on the information content associated to at least one of the two side lobes identified in the interferogram.

摘要翻译： 本发明涉及用于解释干涉测量的新模型，能够导出用于测量光纤（11）的PMD（偏振模色散）的新方法，系统（10）和装置（27）。 该模型基于光信号的传播理论，其可以根据所谓的光纤偏振态（PSP）来确定，导致用干涉测量产生的干扰信号的新的解释，并被表征 因为它在所述干涉图中识别出中心峰和两个旁瓣。 由于这种新型号，可以基于与干涉图中识别的两个旁瓣中的至少一个相关联的信息内容来确定光纤的PMD。

公开(公告)号：US06697150B1

公开(公告)日：2004-02-24

申请号：US10129025

申请日：2002-04-29

申请人： Andrea Galtarossa ,  Luca Palmieri ,  Marco Schiano ,  Tiziana Tambosso

发明人： Andrea Galtarossa ,  Luca Palmieri ,  Marco Schiano ,  Tiziana Tambosso

IPC分类号： G01N2100

CPC分类号： H04B10/2569 ,  G01M11/3181

摘要： The process and apparatus to enable measurement of polarization dispersion of a single-mode optical fibre by launching measurement light at one end of the fibre and analyzing polarization of the light reflected by the other end and collected at such launch end. Optical or electronic masking of light reflected by the near end of the fibre is performed during launch.

摘要翻译： 通过在光纤的一端发射测量光并分析由另一端反射并在这种发射端收集的光的偏振，能够测量单模光纤的偏振色散的方法和装置。 在发射过程中进行由光纤近端反射的光的光学或电子掩蔽。

公开(公告)号：US07106427B2

公开(公告)日：2006-09-12

申请号：US10509905

申请日：2002-04-09

申请人： Marco Schiano

发明人： Marco Schiano

IPC分类号： G01N21/00

CPC分类号： G01M11/3118 ,  G01M11/3163

摘要： An apparatus and method for characterizing or measuring chromatic dispersion in an optical fiber segment. The fiber is accessed at one end with a signal generator injecting modulating pulsed signals which are reflected at the other end of the fiber, the apparatus determining the phase difference between the modulation signals and the reflected modulation signals and calculating the chromatic dispersion therefrom.

摘要翻译： 用于表征或测量光纤段色散的装置和方法。 光纤在一端被访问，信号发生器注入在光纤的另一端反射的调制脉冲信号，该装置确定调制信号和反射的调制信号之间的相位差并从其计算色散。

公开(公告)号：US20050220389A1

公开(公告)日：2005-10-06

申请号：US10504043

申请日：2002-03-14

申请人： Benedetto Riposati ,  Marco Schiano

发明人： Benedetto Riposati ,  Marco Schiano

IPC分类号： H04B10/2569 ,  G02B6/00

CPC分类号： H04B10/2569

摘要： The present invention relates to an apparatus and method for mitigating the effects of polarization mode dispersion (PMD) in high speed optical signal transmission systems. The apparatus comprises a concatenation of birefringent elements (11, 12, 16) of which at least two (11, 12) can be selectively controlled by means of a feedback device (15), and is capable of mitigating the effects of first- and second-order PMD even through the architecture used features a limited number of control connections (11a, 12a9 and corresponding control signals.

摘要翻译： 本发明涉及一种减轻高速光信号传输系统中偏振模色散（PMD）影响的装置和方法。 该装置包括双折射元件（11,12,16）的级联，其中可通过反馈装置（15）选择性地控制至少两个（11,12），并且能够减轻第一和第 二阶PMD甚至通过使用的架构具有有限数量的控制连接（11 a，12 a 9和相应的控制信号）。