公开(公告)号：US07283688B2

公开(公告)日：2007-10-16

申请号：US11323132

申请日：2005-12-30

申请人： Nicholas J. Frigo ,  Patrick Iannone ,  Kenneth C. Reichmann

发明人： Nicholas J. Frigo ,  Patrick Iannone ,  Kenneth C. Reichmann

IPC分类号： G01F1/01

CPC分类号： G01M11/35 ,  G01M11/088 ,  G01M11/30 ,  G02B6/2852 ,  G02B6/447 ,  G02F1/095 ,  H04B10/07

摘要： A method, apparatus and system for minimally intrusive fiber identification includes imparting a time-varying modulation onto an optical signal propagating in an optical fiber and subsequently detecting the presence of the time-varying modulation in the optical signal transmitting through the fiber to identify the fiber. In a specific embodiment of the invention, a time-varying curvature is imposed on the fiber to be identified and the presence of the resultant time variation in the transmitted power of a propagating optical signal is subsequently detected for identification of the manipulated fiber.

摘要翻译： 用于最小侵入性光纤识别的方法，装置和系统包括将时变调制传递到在光纤中传播的光信号，随后检测在通过光纤传输的光信号中存在时变调制以识别光纤 。 在本发明的具体实施例中，随时检测待识别的光纤上的随时间变化的曲率，并且随后检测传播的光信号的发射功率的合成时间变化的存在以识别被操纵的光纤。

公开(公告)号：US07280769B2

公开(公告)日：2007-10-09

申请号：US10628203

申请日：2003-07-28

申请人： Jurgis Astrauskas

发明人： Jurgis Astrauskas

IPC分类号： H04B10/06

CPC分类号： H04B10/07

摘要： An optical communication probe enables a diagnostic tool to optically communicate with an external device, such as an appliance, through a low intensity indicator light of the external device. The communication probe includes an optical transmitter, an optical receiver, and a voltage converter for converting a first voltage signal received from the diagnostic tool to a second voltage signal. The second voltage signal is coupled to the optical receiver to operate the optical receiver in a high speed mode.

摘要翻译： 光通信探针使得诊断工具能够通过外部设备的低强度指示灯与诸如设备的外部设备光学通信。 通信探头包括光发射器，光接收器和用于将从诊断工具接收的第一电压信号转换为第二电压信号的电压转换器。 第二电压信号耦合到光接收器以以高速模式操作光接收机。

公开(公告)号：US07250778B2

公开(公告)日：2007-07-31

申请号：US11006184

申请日：2004-12-07

申请人： Kai Di Feng

发明人： Kai Di Feng

IPC分类号： G01R31/302 ,  G01R31/28

CPC分类号： H04B10/07 ,  G01R31/311 ,  H04B10/505

摘要： Wafer-level testing is performed on an electronic device to be used in an optical communications system. An optical test signal is generated and is provided to a first photo detector. An electrical output of the first photo detector is supplied to the electronic device on the wafer. An electrical output from the electronic device on the wafer is used to drive a light source. An optical output of the light source is supplied to a second photo detector and an electrical signal output from the second photo detector is examined.

摘要翻译： 在光通信系统中使用的电子设备上执行晶片级测试。 生成光学测试信号并提供给第一光电检测器。 第一光电检测器的电输出被提供给晶片上的电子器件。 来自晶片上的电子设备的电输出用于驱动光源。 光源的光输出被提供给第二光检测器，并检查从第二光检测器输出的电信号。

公开(公告)号：US20070131847A1

公开(公告)日：2007-06-14

申请号：US10581904

申请日：2005-10-21

申请人： Jianguo Yao ,  David Spokes ,  Alistair Frier ,  Steven Borley

发明人： Jianguo Yao ,  David Spokes ,  Alistair Frier ,  Steven Borley

IPC分类号： H01J40/14 ,  G01J1/44 ,  H03F3/08

CPC分类号： H04B10/07 ,  G01J1/44 ,  H03F3/08 ,  H04B10/674

摘要： An optical detector including an avalanche photodiode (APD) and protection circuitry for protecting the APD from excessive power dissipation therewithin, wherein the protection circuitry includes a switching element connected in parallel with the APD, which switching element is switched from a high resistance state to a low resistance state if the level of current through the APD exceeds a predetermined level, and wherein switching back of the switching element to the high resistance state is dependent on a reset signal from a controller. An optical detector including an avalanche photodiode (APD), and protection circuitry for protecting the APD from excessive power dissipation therewithin by switching the APD to a relatively low voltage power supply if the level of current through the APD exceeds a predetermined level, and wherein switching back of the APD to a higher voltage power supply is dependent on a reset signal from a controller.

摘要翻译： 一种光学检测器，包括雪崩光电二极管（APD）和保护电路，用于保护APD免于其中的功率耗散，其中保护电路包括与APD并联连接的开关元件，该开关元件从高电阻状态切换到 如果通过APD的电流的电平超过预定电平，并且其中将开关元件切换回高电阻状态的低电阻状态取决于来自控制器的复位信号。 一种包括雪崩光电二极管（APD）的光检测器，以及用于通过如果通过APD的电流水平超过预定电平将APD切换到相对低电压电源，则保护APD免受过度功率耗散的保护电路，并且其中切换 APD的背面到更高的电压电源取决于来自控制器的复位信号。

公开(公告)号：US20070094410A1

公开(公告)日：2007-04-26

申请号：US11259448

申请日：2005-10-26

申请人： Joshua Voigt ,  Christopher Coston ,  Robert Feuerstein ,  Daniel Youngblood ,  Dan Rosenstock

发明人： Joshua Voigt ,  Christopher Coston ,  Robert Feuerstein ,  Daniel Youngblood ,  Dan Rosenstock

IPC分类号： G06F15/16

CPC分类号： H04L41/12 ,  H04B10/07 ,  H04L41/0681 ,  H04L41/08 ,  H04L41/085 ,  H04L41/0866 ,  H04L43/0811

摘要： A method for determining network topology of a provider network includes selecting a first network element, selecting a first port on the first network element, and iteratively performing connectivity validation tests using the first port, wherein each connectivity validation test is associated with a type of network element and yields a result that indicates whether a second port on a second network element of the associated type is connected to the first port. A system for discovering topology of a network, the system comprising a topology discovery engine in operable communication with a near network element and operable to identify a first port of a far network element that is connected to a second port of the near network element by remotely altering operation of the near network element to cause the second network element to respond in a manner that identifies the first port.

摘要翻译： 一种用于确定提供商网络的网络拓扑的方法包括选择第一网络元件，选择第一网络元件上的第一端口，以及使用第一端口迭代地执行连接性验证测试，其中每个连接性验证测试与网络类型相关联 元素，并且产生指示关联类型的第二网络元件上的第二端口是否连接到第一端口的结果。 一种用于发现网络拓扑的系统，所述系统包括与近网络元件可操作地通信的拓扑发现引擎，并且可操作以通过远程来识别连接到所述近网络元件的第二端口的远网元件的第一端口 改变近网络元件的操作以使得第二网络元件以识别第一端口的方式进行响应。

公开(公告)号：US20060263084A1

公开(公告)日：2006-11-23

申请号：US11316115

申请日：2005-12-21

申请人： Norman Swenson ,  Paul Voois ,  Thomas Lindsay ,  Steve Zeng

发明人： Norman Swenson ,  Paul Voois ,  Thomas Lindsay ,  Steve Zeng

IPC分类号： H04B10/08

CPC分类号： H04B10/0731 ,  H04B10/07

摘要： A transmitter for a communications link is tested by using a (software) simulation of a reference channel and/or a reference receiver to test the transmitter. In one embodiment for optical fiber communications links, a data test pattern is applied to the transmitter under test and the resulting optical output is captured, for example by a sampling oscilloscope. The captured waveform is subsequently processed by the software simulation, in order to simulate propagation of the optical signal through the reference channel and/or reference receiver. A performance metric for the transmitter is calculated based on the processed waveform.

摘要翻译： 用于通信链路的发射机通过使用参考信道和/或参考接收机的（软件）模拟来测试发射机。 在光纤通信链路的一个实施例中，将数据测试模式应用于被测发射机，并且例如通过采样示波器捕获所得光输出。 捕获的波形随后通过软件仿真处理，以便模拟通过参考信道和/或参考接收机的光信号的传播。 基于已处理的波形计算发射机的性能指标。

公开(公告)号：US07099581B2

公开(公告)日：2006-08-29

申请号：US10618259

申请日：2003-07-11

申请人： Stephen G. Evangelides, Jr. ,  Jay P. Morreale ,  Michael J. Neubelt

发明人： Stephen G. Evangelides, Jr. ,  Jay P. Morreale ,  Michael J. Neubelt

IPC分类号： H04B10/00

CPC分类号： H04B10/07 ,  H04B10/071

摘要： A method is provided for using optical time-domain reflectometry (OTDR) with a bi-directional optical transmission system that includes a plurality of terminals interconnected by first and second unidirectional optical transmission paths having at least one repeater therein. The method begins by transmitting a probe signal from a first terminal through the repeater over the first optical transmission path. A returned OTDR signal is received over the first optical transmission path in which status information concerning the first optical transmission path is embodied. The returned OTDR signal is transformed to a digitized electrical signal and the digitized electrical signal is transformed to an optical data signal. Finally, the optical data signal is transmitted over the second optical transmission path to the first terminal for extracting the status information embodied therein.

摘要翻译： 提供了一种使用具有双向光传输系统的光时域反射测量（OTDR）的方法，该双向光传输系统包括通过其中具有至少一个中继器的第一和第二单向光传输路径互连的多个终端。 该方法通过在第一光传输路径上通过中继器从第一终端发送探测信号开始。 在第一光传输路径上接收返回的OTDR信号，其中具体涉及第一光传输路径的状态信息。 返回的OTDR信号被变换为数字化的电信号，数字化的电信号被变换为光数据信号。 最后，将光数据信号通过第二光传输路径发送到第一终端，以提取其中体现的状态信息。

公开(公告)号：US07068931B2

公开(公告)日：2006-06-27

申请号：US10132389

申请日：2002-04-26

申请人： Koichi Tokunaga

发明人： Koichi Tokunaga

IPC分类号： H04B10/08

CPC分类号： H04B10/07 ,  H04B10/0771 ,  H04B2210/071 ,  H04B2210/072

摘要： An alarm control method allowing easy localization of a failure in an optical communications network is disclosed. An optical signal from a signal transmitter is monitored to produce an alarm information signal indicating whether the optical signal is normally inputted. The optical signal and an optical control signal including the alarm information signal is multiplexed and transmitted to an optical receiver through an optical transmission line. When receiving the optical control signal and the optical signal from the optical transmitter, the optical receiver determines whether the optical signal is normally received. When not normally received, transmission of a receiver-side alarm signal to a management system is controlled depending on whether the alarm information signal indicates that the optical signal has been normally inputted at the optical transmitter.

公开(公告)号：US20050213965A1

公开(公告)日：2005-09-29

申请号：US10808254

申请日：2004-03-24

申请人： Ernest Bergmann ,  William Thompson

发明人： Ernest Bergmann ,  William Thompson

IPC分类号： H04B10/08

CPC分类号： H04B10/07

摘要： A tester for testing components of a communication system, such as an optical communication system is disclosed. The tester may utilize a testing method to test a communication component (e.g. a cable or repeater) by stressing a test signal. The tester may utilize external transmitters and external receivers in order to implement the test in a similar communication environment as the tested communication components normally operate.

摘要翻译： 公开了一种用于测试诸如光通信系统的通信系统的组件的测试器。 测试者可以利用测试方法通过强调测试信号来测试通信组件（例如电缆或中继器）。 测试者可以利用外部发射机和外部接收机，以便在与测试的通信组件通常运行的类似的通信环境中实现测试。

公开(公告)号：US06941071B2

公开(公告)日：2005-09-06

申请号：US09865260

申请日：2001-05-25

申请人： Kevin Paul Demsky

发明人： Kevin Paul Demsky

IPC分类号： H04B10/08 ,  H04B10/00

CPC分类号： H04B10/07

摘要： A test method and apparatus are provided for testing parallel optical transceivers. Each of a plurality of channels of the parallel optical transceiver is connected in series. A predefined data pattern is applied to a first channel of the series connected plurality of channels. An output is detected from a last channel of the series connected plurality of channels and compared the applied predefined data pattern to identify operation of the parallel optical transceiver. An optical wrap plug and an electrical wrap plug are used for connecting in series the plurality of channels of the parallel optical transceiver. The optical wrap plug includes a plurality of optical connectors for respectively optically connecting each respective channel transmitter to a next respective channel receiver. The electrical wrap plug includes a plurality of electrical connectors for respectively electrically connecting a respective channel receiver to a corresponding respective channel transmitter.

摘要翻译： 提供了一种用于测试并行光收发器的测试方法和设备。 并行光收发器的多个通道中的每一个串联连接。 将预定义的数据模式应用于串联连接的多个通道的第一通道。 从串联连接的多个信道的最后一个信道检测输出，并比较所应用的预定义数据模式以识别并行光收发器的操作。 使用光学包装塞和电气包装塞串联连接并行光收发器的多个通道。 光学覆盖塞包括多个光学连接器，用于将每个相应的通道发射器分别光学地连接到下一个相应的通道接收器。 电气绕线塞包括多个电连接器，用于将相应的通道接收器分别电连接到相应的各个通道发射器。