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1. 发明授权

US5566162A Method of sectionalizing trouble on telecommunication network connections 失效
标题翻译：分类电信网络连接故障的方法
公开(公告)号：US5566162A
公开(公告)日：1996-10-15
申请号：US568724
申请日：1995-12-07
申请人： John G. Gruber , Gregory P. Burdett
发明人： John G. Gruber , Gregory P. Burdett
IPC分类号： H04J3/14
CPC分类号： H04J3/14 , Y10S370/907
摘要： In telecommunications involving more than one network, it is important to determine the location of a fault which may occur on a connection so that the responsible network administrator can be identified and appropriate remedial measures can be promptly performed. The invention allows sectionalization of trouble on a connection which spans more than one network administrative domain. It uses NE (near-end), FE (far-end) and Int. (intermediate) monitoring signals specific to separate layered entities associated with the connection.
摘要翻译：在涉及多个网络的电信中，重要的是确定连接可能发生的故障的位置，以便可以识别负责的网络管理员，并可以及时执行适当的补救措施。本发明允许跨越多于一个网络管理域的连接上的故障分段。它使用NE（近端），FE（远端）和Int。（中间）监视与连接相关联的分离的分层实体特有的信号。

2. 发明申请

US20110293272A1 OPTICAL SWITCH WITH POWER EQUALIZATION 有权
标题翻译：光电开关电源均衡
公开(公告)号：US20110293272A1
公开(公告)日：2011-12-01
申请号：US13205115
申请日：2011-08-08
申请人： Alan Frank Graves , John G. Gruber , Andrew John Bryant
发明人： Alan Frank Graves , John G. Gruber , Andrew John Bryant
IPC分类号： H04J14/00
CPC分类号： H04Q11/0005 , H04Q2011/0015 , H04Q2011/0016 , H04Q2011/0049 , H04Q2011/0083
摘要： An optical intensity control system for use with an optical switch providing individual signal paths between input and output ports. The system has a optical splitters connectable to output multiplexers of the switch and also has variable optical intensity controllers (VOICs) for insertion into the individual signal paths. The VOICs individually control the intensity of optical signals present in the signal paths in accordance with intensity control signals. An equalizer is connected to the splitters and to the VOICs, for producing an estimate of the optical power of each individual switched optical signal and generating the intensity control signals. The equalizer is adapted to controllably isolate individual switched optical signals. In this way, individual and independent control of the power on each optical channel is provided, wavelength-dependent losses introduced by all the devices in the switch including the WDM devices at the output of the switch are accounted for and one optical coupler is required for each output optical fiber. Coarse equalization may be provided for each multiplexed optical signal either at the switch input or output, permitting a reduction in the dynamic range over which the VOICs inside the switch are required to operate.
摘要翻译：一种光强度控制系统，用于在输入和输出端口之间提供各个信号路径的光学开关。该系统具有可连接到开关的输出多路复用器的光分路器，并且还具有用于插入各个信号路径的可变光强度控制器（VOIC）。 VOIC根据强度控制信号独立地控制存在于信号路径中的光信号的强度。均衡器连接到分离器和VOIC，用于产生每个单独的切换光信号的光功率的估计并产生强度控制信号。均衡器适于可控制地隔离各个开关光信号。以这种方式，提供对每个光通道上的功率的独立和独立的控制，考虑了交换机输出端的包括WDM设备的开关中所有设备引入的波长相关损耗，并且需要一个光耦合器每个输出光纤。可以在开关输入或输出处为每个复用光信号提供粗均衡，从而允许减少开关内部的VOIC需要操作的动态范围。

3. 发明授权

US06996514B2 Time simulation techniques to determine network availability 有权
公开(公告)号：US06996514B2
公开(公告)日：2006-02-07
申请号：US09853711
申请日：2001-05-14
申请人： John G. Gruber
发明人： John G. Gruber
IPC分类号： G06F17/50
CPC分类号： H04L41/0681 , H04L41/145 , H04L41/5012 , H04L43/0811
摘要： A time simulation technique for determining the service availability (or unavailability) of end-to-end network connections (or paths) between source and sink nodes is disclosed. The failure could be either a single failure mode or a multiple failure mode. The time simulation apparatus includes a network representation having pluralities of nodes, links and connections; each plurality having various attributes such as relating to failure, recovery and repair mechanisms. The apparatus further includes a mechanism for selecting one instance from each of the pluralities of nodes, links and connections based on the attributes; a failure/repair module for performing a simulated failure and repair on the selected instances as appropriate; a mechanism for selecting a connection between source and sink nodes; and an arithmetic mechanism for calculating availability of the selected connection.

4. 发明授权

US08526813B2 Optical switch with power equalization 有权
标题翻译：具有功率均衡的光开关
公开(公告)号：US08526813B2
公开(公告)日：2013-09-03
申请号：US13205115
申请日：2011-08-08
申请人： Alan Frank Graves , John G. Gruber , Andrew John Bryant
发明人： Alan Frank Graves , John G. Gruber , Andrew John Bryant
IPC分类号： H04J14/00
CPC分类号： H04Q11/0005 , H04Q2011/0015 , H04Q2011/0016 , H04Q2011/0049 , H04Q2011/0083
摘要： An optical intensity control system for use with an optical switch providing individual signal paths between input and output ports. The system has a optical splitters connectable to output multiplexers of the switch and also has variable optical intensity controllers (VOICs) for insertion into the individual signal paths. The VOICs individually control the intensity of optical signals present in the signal paths in accordance with intensity control signals. An equalizer is connected to the splitters and to the VOICs, for producing an estimate of the optical power of each individual switched optical signal and generating the intensity control signals. The equalizer is adapted to controllably isolate individual switched optical signals. In this way, individual and independent control of the power on each optical channel is provided, wavelength-dependent losses introduced by all the devices in the switch including the WDM devices at the output of the switch are accounted for and one optical coupler is required for each output optical fiber. Coarse equalization may be provided for each multiplexed optical signal either at the switch input or output, permitting a reduction in the dynamic range over which the VOICs inside the switch are required to operate.
摘要翻译：一种光强度控制系统，用于在输入和输出端口之间提供各个信号路径的光学开关。该系统具有可连接到开关的输出多路复用器的光分路器，并且还具有用于插入各个信号路径的可变光强度控制器（VOIC）。 VOIC根据强度控制信号独立地控制存在于信号路径中的光信号的强度。均衡器连接到分离器和VOIC，用于产生每个单独的切换光信号的光功率的估计并产生强度控制信号。均衡器适于可控制地隔离各个开关光信号。以这种方式，提供对每个光通道上的功率的独立和独立的控制，考虑了交换机输出端的包括WDM设备的开关中所有设备引入的波长相关损耗，并且需要一个光耦合器每个输出光纤。可以在开关输入或输出处为每个复用光信号提供粗均衡，从而允许减少开关内部的VOIC需要操作的动态范围。

5. 发明授权

US07995919B2 Optical switch with power equalization 有权
标题翻译：具有功率均衡的光开关
公开(公告)号：US07995919B2
公开(公告)日：2011-08-09
申请号：US12476693
申请日：2009-06-02
申请人： Alan Frank Graves , John G. Gruber , Andrew John Bryant
发明人： Alan Frank Graves , John G. Gruber , Andrew John Bryant
IPC分类号： H04J14/00
CPC分类号： H04Q11/0005 , H04Q2011/0015 , H04Q2011/0016 , H04Q2011/0049 , H04Q2011/0083
摘要： An optical intensity control system for use with an optical switch providing individual signal paths between input and output ports. The system has a optical splitters connectable to output multiplexers of the switch and also has variable optical intensity controllers (VOICs) for insertion into the individual signal paths. The VOICs individually control the intensity of optical signals present in the signal paths in accordance with intensity control signals. An equalizer is connected to the splitters and to the VOICs, for producing an estimate of the optical power of each individual switched optical signal and generating the intensity control signals. The equalizer is adapted to controllably isolate individual switched optical signals. In this way, individual and independent control of the power on each optical channel is provided, wavelength-dependent losses introduced by all the devices in the switch including the WDM devices at the output of the switch are accounted for and one optical coupler is required for each output optical fiber. Coarse equalization may be provided for each multiplexed optical signal either at the switch input or output, permitting a reduction in the dynamic range over which the VOICs inside the switch are required to operate.
摘要翻译：一种光强度控制系统，用于在输入和输出端口之间提供各个信号路径的光学开关。该系统具有可连接到开关的输出多路复用器的光分路器，并且还具有用于插入各个信号路径的可变光强度控制器（VOIC）。 VOIC根据强度控制信号独立地控制存在于信号路径中的光信号的强度。均衡器连接到分离器和VOIC，用于产生每个单独的切换光信号的光功率的估计并产生强度控制信号。均衡器适于可控制地隔离各个开关光信号。以这种方式，提供对每个光通道上的功率的独立和独立的控制，考虑了交换机输出端的包括WDM设备的开关中所有设备引入的波长相关损耗，并且需要一个光耦合器每个输出光纤。可以在开关输入或输出处为每个复用光信号提供粗均衡，从而允许减少开关内部的VOIC需要操作的动态范围。

6. 发明授权

US06871021B2 Optical switch with connection verification 失效
标题翻译：具有连接验证的光开关
公开(公告)号：US06871021B2
公开(公告)日：2005-03-22
申请号：US09859544
申请日：2001-05-18
申请人： Alan F. Graves , John G. Gruber , Andrew J. Bryant
发明人： Alan F. Graves , John G. Gruber , Andrew J. Bryant
IPC分类号： H04Q11/00 , H04B10/08 , H04J14/00
CPC分类号： H04Q11/0005 , H04Q2011/0015 , H04Q2011/0043 , H04Q2011/0083 , H04Q2011/0084
摘要： An optical switch is equipped with a set of optical intensity controllers at its input, each intensity controller being driven to vary a corresponding WDM input traffic signal with a low power test signal. The switch is also equipped with optical splitters at its output and a path integrity analyzer connected to the splitters and to the intensity controllers. The path integrity analyzer generates or controls generation of the test signals applied by the intensity controllers. The path integrity analyzer also receives the tapped portions of the WDM output signals and separates them into their single-carrier components in order to recover a set of switched single-carrier optical signals. The path integrity analyzer is further provided with test signal detectors used to detect the presence of a test signal in each recovered switched single-carrier optical signal. The path integrity analyzer thus ascertains the integrity of the connection involving each switched single-carrier optical signal by comparing detected test signals to expected test signals that are derived from a connection map.
摘要翻译：光开关在其输入处配备有一组光强度控制器，每个强度控制器被驱动以用低功率测试信号来改变对应的WDM输入话务信号。该开关还在其输出端配有光分路器，并连接到分路器和强度控制器的路径完整性分析器。路径完整性分析器生成或控制由强度控制器施加的测试信号的产生。路径完整性分析器还接收WDM输出信号的抽头部分并将它们分离成它们的单载波分量，以便恢复一组开关单载波光信号。路径完整性分析器还提供有用于检测每个恢复的开关单载波光信号中的测试信号的存在的测试信号检测器。路径完整性分析器因此通过将检测到的测试信号与从连接图导出的预期测试信号进行比较来确定涉及每个开关单载波光信号的连接的完整性。

7. 发明授权

US5450394A Delay monitoring of telecommunication networks 失效
标题翻译：延迟监测电信网络
公开(公告)号：US5450394A
公开(公告)日：1995-09-12
申请号：US208325
申请日：1994-03-10
申请人： John G. Gruber , Asghar E. Methiwalla , Anil Chandan
发明人： John G. Gruber , Asghar E. Methiwalla , Anil Chandan
IPC分类号： H04J3/06 , H04L12/56 , H04Q11/04 , H04J3/14
CPC分类号： H04Q11/0478 , H04L2012/5628 , H04L2012/5649 , H04L2012/5652
摘要： Novel techniques are disclosed for continuously monitoring parameters of delay between two nodes in a telecommunication network such as an ATM or frame relay network. The techniques use measurement cells, i.e. test cells, test frames, performance management ATM OAM cells, or performance management frame relay frames. These cells or frames contain a timestamp indicating the time a cell or frame is sent and a delay value indicating a difference between reception and transmission times of the cell or frame. Near-end and far-end as well as unidirectional or bidirectional monitoring can be performed, to support single-ended monitoring.
摘要翻译：公开了用于连续监视诸如ATM或帧中继网络的电信网络中的两个节点之间的延迟的参数的新技术。这些技术使用测量单元，即测试单元，测试帧，性能管理ATM OAM单元或性能管理帧中继帧。这些单元或帧包含指示单元或帧发送的时间的时间戳和指示单元或帧的接收和发送时间之间的差的延迟值。可以执行近端和远端以及单向或双向监控，以支持单端监控。

8. 发明申请

US20090238565A1 OPTICAL SWITCH WITH POWER EQUALIZATION 有权
标题翻译：光电开关电源均衡
公开(公告)号：US20090238565A1
公开(公告)日：2009-09-24
申请号：US12476693
申请日：2009-06-02
申请人： Alan Frank Graves , John G. Gruber , Andrew John Bryant
发明人： Alan Frank Graves , John G. Gruber , Andrew John Bryant
IPC分类号： H04J14/02
CPC分类号： H04Q11/0005 , H04Q2011/0015 , H04Q2011/0016 , H04Q2011/0049 , H04Q2011/0083
摘要： An optical intensity control system for use with an optical switch providing individual signal paths between input and output ports. The system has a optical splitters connectable to output multiplexers of the switch and also has variable optical intensity controllers (VOICs) for insertion into the individual signal paths. The VOICs individually control the intensity of optical signals present in the signal paths in accordance with intensity control signals. An equalizer is connected to the splitters and to the VOICs, for producing an estimate of the optical power of each individual switched optical signal and generating the intensity control signals. The equalizer is adapted to controllably isolate individual switched optical signals. In this way, individual and independent control of the power on each optical channel is provided, wavelength-dependent losses introduced by all the devices in the switch including the WDM devices at the output of the switch are accounted for and one optical coupler is required for each output optical fiber. Coarse equalization may be provided for each multiplexed optical signal either at the switch input or output, permitting a reduction in the dynamic range over which the VOICs inside the switch are required to operate.
摘要翻译：一种光强度控制系统，用于在输入和输出端口之间提供各个信号路径的光学开关。该系统具有可连接到开关的输出多路复用器的光分路器，并且还具有用于插入各个信号路径的可变光强度控制器（VOIC）。 VOIC根据强度控制信号独立地控制存在于信号路径中的光信号的强度。均衡器连接到分离器和VOIC，用于产生每个单独的切换光信号的光功率的估计并产生强度控制信号。均衡器适于可控制地隔离各个开关光信号。以这种方式，提供对每个光通道上的功率的独立和独立的控制，考虑了交换机输出端的包括WDM设备的开关中所有设备引入的波长相关损耗，并且需要一个光耦合器每个输出光纤。可以在开关输入或输出处为每个复用光信号提供粗均衡，从而允许减少开关内部的VOIC需要操作的动态范围。

9. 发明授权

US07120356B2 Connection verification for optical switches 有权
公开(公告)号：US07120356B2
公开(公告)日：2006-10-10
申请号：US09735537
申请日：2000-12-14
申请人： Alan F. Graves , Andrew J. Bryant , Andre J. Van Schyndel , John G. Gruber
发明人： Alan F. Graves , Andrew J. Bryant , Andre J. Van Schyndel , John G. Gruber
IPC分类号： H04B10/08
CPC分类号： H04J14/0212 , H04J14/02 , H04J14/021 , H04Q11/0005 , H04Q2011/0011 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/0039 , H04Q2011/0043 , H04Q2011/0083
摘要： A connection verification system that provides substantially non-intrusive connection verification for an optical switch, achieved by correlating the low-frequency contents of the input and switched signals. The results of the correlation process are compared against a connection map to determine whether the switch has operated correctly and to identify, if possible, which mis-connections have taken place. The system includes a selection unit for controllably admitting individual ones of the input signals and individual ones of the switched signals and a verification unit connected to the selection unit, for controlling operation of the selection unit as a function of a connection map and performing relative-delay-dependent signal processing operations on the signals admitted by the selection unit so as to identify connections established through the switching unit and determine their consistency with the connection map. The relative-delay-dependent signal processing operations may be based on correlation or anti-correlation, depending on the operational requirements of the invention.

10. 发明授权

US06836756B1 Time simulation techniques to determine network availability 失效
标题翻译：时间仿真技术来确定网络可用性
公开(公告)号：US06836756B1
公开(公告)日：2004-12-28
申请号：US09709340
申请日：2000-11-13
申请人： John G. Gruber
发明人： John G. Gruber
IPC分类号： G06F1750
CPC分类号： H04L41/145 , H04L41/5012 , H04L43/0811
摘要： A time simulation technique for determining the service availability (or unavailability) of end to and network connections (or paths) between source and sink nodes is disclosed. The method includes skips of (a) selecting a link between two network nodes; (b) performing a simulated link failure on the selected link; (c) sell sting a connection bet two network source and sink nodes; and (d) determining the unavailability and availability of the connection on under the simulated link failure condition. The method further includes (e) of repeating (c) and (a) and (b); and (f) of summoning the unavailability and availability of connections after each repetition until a predetermined number of connections have been selected, and until a simulated link failure has been performed on all links; or until the summed unavailability and availability has been determined to converge, whichever is earlier.
摘要翻译：公开了一种用于确定源节点和宿节点之间的端到端和网络连接（或路径）的服务可用性（或不可用性）的时间仿真技术。该方法包括以下步骤：（a）选择两个网络节点之间的链路; （b）在所选择的链路上执行模拟链路故障; （c）在两个网络源和汇点之间销售连接; 和（d）在模拟链路故障条件下确定连接的不可用性和可用性。该方法还包括（e）重复（c）和（a）和（b）; 以及（f）在每个重复之后召回连接的不可用性和可用性，直到选择了预定数量的连接，并且直到在所有链路上执行了模拟链路故障为止; 或直到总和的不可用性和可用性被确定为收敛，以较早者为准。

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