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1. 发明授权

US09014562B2 Optical line terminal arrangement, apparatus and methods 有权
标题翻译：光线路终端布置，装置和方法
公开(公告)号：US09014562B2
公开(公告)日：2015-04-21
申请号：US12042793
申请日：2008-03-05
申请人： Ornan A. Gerstel , Rajiv Ramaswami
发明人： Ornan A. Gerstel , Rajiv Ramaswami
IPC分类号： H04J14/02
CPC分类号： H04J14/022 , H04J14/0201 , H04J14/0206 , H04J14/0212 , H04J14/0216 , H04J14/0278 , H04J14/0282 , H04J14/0286
摘要： A wavelength division multiplexed optical communication system includes a plurality of optical line terminals which may be part of separate in service networks, each having a line interface and an all-optical pass-through interface including a plurality of pass-through optical ports, and each also including a plurality of local optical ports which are connectable to client equipment and an optical multiplexer/demultiplexer for multiplexing/demultiplexing optical wavelengths. The optical multiplexer/demultiplexer may include one or more stages for inputting/outputting individual wavelengths or bands of a predetermined number of wavelengths, or a combination of bands and individual wavelengths. At least one of the pass-through optical ports of an optical line terminal of one network may be connected to at least one of the pass-through optical ports of an optical line terminal of another network to form an optical path from the line interface of the optical line terminal of the one network to the line interface of the optical line terminal of the another network to form a merged network. The use of such optical line terminals allows the upgrading and merging of the separate networks while in service.
摘要翻译：波分多路复用光通信系统包括多个光线路终端，其可以是服务网络中分离的一部分，每个具有线路接口和包括多个通过光端口的全光通过接口，并且每个还包括可连接到客户设备的多个本地光端口和用于复用/解复用光波长的光复用器/解复用器。光复用器/解复用器可以包括一个或多个级，用于输入/输出预定数量的波长的各个波长或波段，或波段和各波长的组合。一个网络的光线路终端的至少一个直通光端口可以连接到另一网络的光线路终端的至少一个直通光端口，以形成从一个网络的光线路终端到另一个网络的光线路终端的线路接口，形成一个合并网络。使用这种光线路终端允许在使用中升级和合并分离的网络。

2. 发明授权

US08971706B2 Link discovery, verification, and failure isolation in an optical communication system 有权
标题翻译：光通信系统中的链路发现，验证和故障隔离
公开(公告)号：US08971706B2
公开(公告)日：2015-03-03
申请号：US10261099
申请日：2002-09-30
申请人： Ornan A. Gerstel , Humair Raza , Rajiv Ramaswami , Babu O. Narayanan , Robert Ward , Robert Keys , David Park , Vasant Sahay , Osama Aboul-Magd , Frederic Simard
发明人： Ornan A. Gerstel , Humair Raza , Rajiv Ramaswami , Babu O. Narayanan , Robert Ward , Robert Keys , David Park , Vasant Sahay , Osama Aboul-Magd , Frederic Simard
IPC分类号： H04J14/00 , H04J14/02 , H04B10/032 , H04B10/07 , H04B10/077 , H04B10/079 , H04B10/27
CPC分类号： H04J14/0227 , H04B10/032 , H04B10/07 , H04B10/0775 , H04B10/0793 , H04B10/27 , H04B2210/071 , H04B2210/075 , H04J14/0241 , H04J14/0279 , H04J14/0284 , H04J14/0287 , H04J14/0294 , H04J14/0297
摘要： Automatic discovery and verification of optical communication links as well as isolation of link failures in an optical communication system.
摘要翻译：光通信链路的自动发现和验证以及光通信系统中链路故障的隔离。

3. 发明授权

US07369772B2 Optical line terminal arrangement, apparatus and methods 失效
标题翻译：光线路终端布置，装置和方法
公开(公告)号：US07369772B2
公开(公告)日：2008-05-06
申请号：US10737765
申请日：2003-12-18
申请人： Ornan A. Gerstel , Rajiv Ramaswami
发明人： Ornan A. Gerstel , Rajiv Ramaswami
IPC分类号： H04J14/02 , H04J14/00
CPC分类号： H04J14/022 , H04J14/0201 , H04J14/0206 , H04J14/0212 , H04J14/0216 , H04J14/0278 , H04J14/0282 , H04J14/0286
摘要： A wavelength division multiplexed optical communication system including a first optical line interface optically coupled to a first transponder and an optical demultiplexer through which the first optical line interface is not optically coupled to the first transponder. The system also includes a second optical line interface and at least one switch. The switch is operable to optically couple the second optical line interface to (a) the first optical line interface through at least the optical demultiplexer, and alternatively (b) the second transponder. A method for an optical add/drop multiplexing system also is provided.
摘要翻译：一种波分复用光通信系统，包括光耦合到第一应答器的第一光线路接口和光解复用器，第一光线路接口不通过该光解复用器光耦合到第一应答器。该系统还包括第二光线路接口和至少一个开关。开关可操作以通过至少光解复用器将第二光线路接口光耦合到（a）第一光线路接口，以及（b）第二应答器。还提供了一种用于光分插复用系统的方法。

4. 发明授权

US07123832B2 Methods and apparatus for optical network management using pilot tones 失效
标题翻译：使用导频音进行光网络管理的方法和装置
公开(公告)号：US07123832B2
公开(公告)日：2006-10-17
申请号：US11328769
申请日：2006-01-10
申请人： John C. Carrick , Mark I. Oppenheimer , Rajiv Ramaswami , Ornan A. Gerstel
发明人： John C. Carrick , Mark I. Oppenheimer , Rajiv Ramaswami , Ornan A. Gerstel
IPC分类号： H04B10/00
CPC分类号： H04Q11/0062 , H04B10/0773 , H04B10/0793 , H04B2210/075 , H04Q2011/0083 , H04Q2011/0088
摘要： Methods and apparatus for managing an optical network using pilot tones are provided. One method includes generating a list of pilot tones contributed by a selected node to each of its target nodes. Network pilot tone sources are re-configured so that a pilot tone source of any optical path incorporating one of the target nodes has a value distinct from the listed pilot tones. The selected node can then be added to the network. Another method includes generating a list including all selected network nodes to be incorporated into a new optical path and nodes adjacent to the selected network nodes. Network pilot tone sources are re-configured until a pilot tone source associated with the new optical path has a pilot tone distinct from that of any listed node. The new optical path can then be added to the network.
摘要翻译：提供了使用导频音来管理光网络的方法和装置。一种方法包括生成由选定节点贡献到其每个目标节点的导频音调的列表。重新配置网络导频音源，使得包含目标节点之一的任何光路的导频音源具有与列出的导频音不同的值。然后可以将选定的节点添加到网络。另一种方法包括生成包括要并入到新光路中的所有选定网络节点和与选定网络节点相邻的节点的列表。重新配置网络导频音源，直到与新光路相关联的导频音源具有与任何列出的节点不同的导频音。然后可以将新的光学路径添加到网络。

5. 发明申请

US20080219666A1 OPTICAL LINE TERMINAL ARRANGEMENT, APPARATUS AND METHODS 有权
标题翻译：光线终端装置，装置和方法
公开(公告)号：US20080219666A1
公开(公告)日：2008-09-11
申请号：US12042793
申请日：2008-03-05
申请人： Ornan A. Gerstel , Rajiv Ramaswami
发明人： Ornan A. Gerstel , Rajiv Ramaswami
IPC分类号： H04J14/02
CPC分类号： H04J14/022 , H04J14/0201 , H04J14/0206 , H04J14/0212 , H04J14/0216 , H04J14/0278 , H04J14/0282 , H04J14/0286
摘要： A wavelength division multiplexed optical communication system includes a plurality of optical line terminals which may be part of separate in service networks, each having a line interface and an all-optical pass-through interface including a plurality of pass-through optical ports, and each also including a plurality of local optical ports which are connectable to client equipment and an optical multiplexer/demultiplexer for multiplexing/demultiplexing optical wavelengths. The optical multiplexer/demultiplexer may include one or more stages for inputting/outputting individual wavelengths or bands of a predetermined number of wavelengths, or a combination of bands and individual wavelengths. At least one of the pass-through optical ports of an optical line terminal of one network may be connected to at least one of the pass-through optical ports of an optical line terminal of another network to form an optical path from the line interface of the optical line terminal of the one network to the line interface of the optical line terminal of the another network to form a merged network. The use of such optical line terminals allows the upgrading and merging of the separate networks while in service.
摘要翻译：波分多路复用光通信系统包括多个光线路终端，其可以是服务网络中分离的一部分，每个具有线路接口和包括多个通过光端口的全光通过接口，并且每个还包括可连接到客户设备的多个本地光端口和用于复用/解复用光波长的光复用器/解复用器。光复用器/解复用器可以包括一个或多个级，用于输入/输出预定数量的波长的各个波长或波段，或波段和各波长的组合。一个网络的光线路终端的至少一个直通光端口可以连接到另一网络的光线路终端的至少一个直通光端口，以形成从一个网络的光线路终端到另一个网络的光线路终端的线路接口，形成一个合并网络。使用这种光线路终端允许在使用中升级和合并分离的网络。

6. 发明授权

US07613392B2 1:N protection in an optical terminal 有权
标题翻译： 1：光端口的N保护
公开(公告)号：US07613392B2
公开(公告)日：2009-11-03
申请号：US11497390
申请日：2006-08-02
申请人： Ornan A. Gerstel
发明人： Ornan A. Gerstel
IPC分类号： H04B10/00
CPC分类号： H04Q11/0062 , H04J14/0279 , H04J14/0295 , H04Q2011/0081 , H04Q2011/0083
摘要： A communication network comprising at least one first terminal, at least one second terminal, a plurality of links, and at least first and second nodes. The first node is bidirectionally coupled to the first terminal through at least a first one of the links, and also is bidirectionally coupled to the second terminal through at least a second link and the second node. Preferably, the first node comprises a plurality of communication paths, each of which is coupled at a first end thereof to at least one corresponding first link. Second ends of the communication paths are all coupled to the second link, through a multiplexing device, and route signals between the first and second links. The first node also preferably comprises at least one alternate communication path having a first end coupled through the multiplexing device to the second link, at least one switch that is coupled to the alternate communication path, and a detector for detecting a failure in at least one of the communication paths. A controller is coupled to the detector and the switch. The controller is responsive to the detector detecting a failure in at least one of the communication paths for controlling the switch to couple the alternate communication path to a corresponding first link, thereby enabling a signal to be routed between that first link and the second link through the alternate communication path.
摘要翻译：一种通信网络，包括至少一个第一终端，至少一个第二终端，多个链路以及至少第一和第二节点。第一节点通过至少第一个链路双向耦合到第一终端，并且还通过至少第二链路和第二节点双向耦合到第二终端。优选地，第一节点包括多个通信路径，每个通信路径在其第一端耦合到至少一个对应的第一链路。通信路径的第二端都通过多路复用装置耦合到第二链路，并且在第一和第二链路之间路由信号。第一节点还优选地包括至少一个备选通信路径，其具有通过多路复用装置耦合到第二链路的第一端，耦合到备选通信路径的至少一个开关，以及用于检测至少一个的通信路径。控制器耦合到检测器和开关。控制器响应于检测器检测至少一个通信路径中的故障，用于控制交换机将备用通信路径耦合到对应的第一链路，从而使信号能够在该第一链路和第二链路之间通过备用通信路径。

7. 发明授权

US07099578B1 1:N protection in an optical terminal 有权
标题翻译： 1：光端口的N保护
公开(公告)号：US07099578B1
公开(公告)日：2006-08-29
申请号：US09464077
申请日：1999-12-16
申请人： Ornan A. Gerstel
发明人： Ornan A. Gerstel
IPC分类号： H04B10/00
CPC分类号： H04Q11/0062 , H04J14/0279 , H04J14/0295 , H04Q2011/0081 , H04Q2011/0083
摘要： A communication network includes first and second terminals, nodes, and links. The first node is coupled to the first terminal through the first link, and coupled to the second terminal through the second link and the second node. The first node preferably includes communication paths, each coupled to one corresponding first link and to the second link, through a multiplexing device, and routing signals between the links. The first node also preferably includes an alternate communication path coupled through the multiplexing device to the second link, a switch coupled to the alternate path, and a detector detecting failure of a communication path. A controller is responsive to the detector detecting a failure in a communication path and controls the switch to couple the alternate path to a corresponding first link, thereby enabling a signal to be routed between that first and second links through the alternate path.
摘要翻译：通信网络包括第一和第二终端，节点和链路。第一节点通过第一链路耦合到第一终端，并通过第二链路和第二节点耦合到第二终端。第一节点优选地包括通信路径，每个通信路径通过多路复用装置耦合到一个对应的第一链路和第二链路，以及在链路之间路由信号。第一节点还优选地包括通过复用设备耦合到第二链路的替代通信路径，耦合到替代路径的开关以及检测通信路径的故障的检测器。控制器响应于检测器检测到通信路径中的故障，并且控制开关将备选路径耦合到对应的第一链路，从而使信号能够在该第一和第二链路之间通过备用路径路由。

8. 发明授权

US07016607B1 Methods and apparatus for optical network management using pilot tones 失效
标题翻译：使用导频音进行光网络管理的方法和装置
公开(公告)号：US07016607B1
公开(公告)日：2006-03-21
申请号：US09460214
申请日：1999-12-13
申请人： John C. Carrick , Mark I. Oppenheimer , Rajiv R. Ramaswami , Ornan A. Gerstel
发明人： John C. Carrick , Mark I. Oppenheimer , Rajiv R. Ramaswami , Ornan A. Gerstel
IPC分类号： H04B10/00
CPC分类号： H04Q11/0062 , H04B10/0773 , H04B10/0793 , H04B2210/075 , H04Q2011/0083 , H04Q2011/0088
摘要： Methods and apparatus for managing static and dynamic optical network configurations to enable mapping an actual optical network or validating an expected optical network are provided. In one embodiment a validation method includes the step of selecting an optical path having a plurality of nodes from a database defining an expected optical network. A list of detected pilot tones from each node associated with the selected optical path is generated. An expected list of pilot tones associated with each node of the selected optical path is generated. Comparison of the expected and detected lists identifies any mismatched nodes. Another method includes the step of setting a first pilot tone source to have a first pilot tone value. All other network pilot tone sources are set to have another pilot tone value. An optical path associated with the first pilot tone source is then mapped by identifying each node of the network having the first pilot tone value. Extraneous information can be applied to provide greater assurances as to likelihood of possible actual optical paths during the mapping process. Methods of re-configuring network pilot tone sources to preserve mapping and validation abilities when adding nodes, adding optical paths, or even adding another network to a pre-existing network are also provided.
摘要翻译：提供了用于管理静态和动态光网络配置以实现映射实际光网络或验证预期光网络的方法和装置。在一个实施例中，验证方法包括从定义预期光网络的数据库中选择具有多个节点的光路的步骤。产生与所选光路相关联的每个节点的检测到的导频音调的列表。生成与所选光路的每个节点相关联的导频音调的预期列表。预期和检测到的列表的比较识别任何不匹配的节点。另一种方法包括将第一导频音源设置为具有第一导频音值的步骤。所有其他网络导频音源设置为具有另一个导频音调值。然后通过识别具有第一导频音调值的网络的每个节点来映射与第一导频音源相关联的光路。可以应用外部信息，以便在映射过程中对可能的实际光路的可能性提供更大的保证。还提供了重新配置网络导频音源以在添加节点，添加光路或甚至向现有网络添加另一网络时的映射和验证能力的方法。

9. 发明授权

US06898376B1 Optical ring protection apparatus and methods 有权
标题翻译：光环保护装置及方法
公开(公告)号：US06898376B1
公开(公告)日：2005-05-24
申请号：US09459947
申请日：1999-12-14
申请人： Ornan A. Gerstel , Rajiv R. Ramaswami
发明人： Ornan A. Gerstel , Rajiv R. Ramaswami
IPC分类号： H04B10/00 , H04J14/02 , H04L1/22 , H01S3/00 , H04J14/00
CPC分类号： H04J14/0294 , H04B10/032 , H04J14/0282 , H04J14/029 , H04J14/0293 , H04L1/22
摘要： An optical communication system comprising plural optical communication paths, a passive optical coupler, and at least one optical node. The passive optical coupler has a plurality of inputs coupled through the passive optical coupler to an output of the passive optical coupler, and each input is coupled in a corresponding one of the optical communication paths. Each optical node comprises plural optical line terminals, each of which is interposed in a corresponding at least one of the optical communication paths. Each optical line terminal is operable to either (a) substantially prevent an optical signal propagating in that corresponding at least one optical communication path from reaching a corresponding input of the passive optical coupler through the at least one optical communication path, or (b) permit the optical signal to propagate in that corresponding at least one optical communication path towards the corresponding input of the passive optical coupler.
摘要翻译：一种包括多个光通信路径，无源光耦合器和至少一个光节点的光通信系统。无源光耦合器具有通过无源光耦合器耦合到无源光耦合器的输出的多个输入，并且每个输入耦合在相应的一个光通信路径中。每个光节点包括多个光线路终端，每个光线路终端插入相应的至少一个光通信路径中。每个光线路终端可操作以（a）基本上防止在该对应的至少一个光通信路径中传播的光信号通过至少一个光通信路径到达无源光耦合器的对应输入，或（b）允许光信号在相应的至少一个光通信路径中传播到无源光耦合器的对应输入端。

10. 发明授权

US06721508B1 Optical line terminal arrangement, apparatus and methods 有权
公开(公告)号：US06721508B1
公开(公告)日：2004-04-13
申请号：US09293775
申请日：1999-04-19
申请人： Ornan A. Gerstel , Rajiv R. Ramaswami
发明人： Ornan A. Gerstel , Rajiv R. Ramaswami
IPC分类号： H04J1402
CPC分类号： H04J14/022 , H04J14/0201 , H04J14/0206 , H04J14/0212 , H04J14/0216 , H04J14/0278 , H04J14/0282 , H04J14/0286
摘要： A wavelength division multiplexed optical communication system includes a plurality of optical line terminals which may be part of separate in service networks, each having a line interface and an all-optical pass-through interface including a plurality of pass-through optical ports, and each also including a plurality of local optical ports which are connectable to client equipment and an optical multiplexer/demultiplexer for multiplexing/demultiplexing optical wavelengths. The optical multiplexer/demultiplexer may include one or more stages for inputting/outputting individual wavelengths or bands of a predetermined number of wavelengths, or a combination of bands and individual wavelengths. At least one of the pass-through optical ports of an optical line terminal of one network may be connected to at least one of the pass-through optical ports of an optical line terminal of another network to form an optical path from the line interface of the optical line terminal of the one network to the line interface of the optical line terminal of the another network to form a merged network. The use of such optical line terminals allows the upgrading and merging of the separate networks while in service.

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