公开(公告)号：US07184553B2

公开(公告)日：2007-02-27

申请号：US10067390

申请日：2002-02-07

申请人： Uri Mahlab ,  Michael Gutin

发明人： Uri Mahlab ,  Michael Gutin

IPC分类号： H04K1/00 ,  H04L9/00 ,  G02F1/01 ,  G02B6/12

CPC分类号： H04K1/00

摘要： A method, a system and a device for encrypting an optical signal to be transmitted via an optical fiber communication link by causing controlled chromatic dispersion of said signal. The controllable decryption device, as well as the controllable decryption device, can be implemented in the form of a variable dispersion compensation module controlled by a decryption key. In the system, the encryption device and the decryption device are controlled in synchronism by an encryption key and a decryption key respectively, the keys preferably being functions of time symmetric with respect to the time axis.

摘要翻译： 一种用于通过使所述信号受到控制的色散来加密要通过光纤通信链路发射的光信号的方法，系统和装置。 可控解密装置以及可控解密装置可以以由解密密钥控制的可变色散补偿模块的形式来实现。 在该系统中，加密装置和解密装置分别通过加密密钥和解密密钥进行同步控制，优选地，密钥相对于时间轴为时间对称的功能。

公开(公告)号：US07181139B2

公开(公告)日：2007-02-20

申请号：US09976243

申请日：2001-10-15

申请人： Doron Handelman ,  Uri Mahlab

发明人： Doron Handelman ,  Uri Mahlab

IPC分类号： H04J14/00

CPC分类号： H04Q11/0005 ,  H04Q11/0062 ,  H04Q2011/0024 ,  H04Q2011/0033 ,  H04Q2011/0039 ,  H04Q2011/0073 ,  H04Q2011/0075

摘要： An optical switching apparatus in an optical communication network selectively combines and separates, using OTDM and/or WDM, optical signal samples that are obtained by a spread spectrum technique or a combination of optical signal samples that are obtained by a spread spectrum technique and optical signal samples that are carried over discrete channel wavelengths. In upstream communication, when optical signal samples that are received at the optical switching apparatus include upstream optical signal samples that are obtained by a spread spectrum technique, the optical switching apparatus optically converts the optical signal samples provided thereto into a broadband combined series of upstream optical signal samples and routes the broadband combined series of upstream optical signal samples to a destination route. In downstream communication, when the optical switching apparatus receives a broadband series of downstream optical signal samples obtained by utilizing a spread spectrum technique, the optical switching apparatus optically converts the broadband series of downstream optical signal samples into an integer number nn>1 of series of downstream optical signal samples that include at least one of the following: broadband series of downstream optical signal samples; and series of downstream optical signal samples having the downstream optical signal samples carried over discrete channel wavelengths. The nn series of downstream optical signal samples are then routed to nn routes respectively. Related apparatus and methods are also described.

摘要翻译： 光通信网络中的光交换设备使用OTDM和/或WDM选择性地组合和分离通过扩频技术获得的光信号样本或通过扩频技术和光信号获得的光信号样本的组合 通过离散通道波长承载的样品。 在上游通信中，当在光开关装置接收到的光信号样本包括通过扩谱技术获得的上行光信号样本时，光开关装置将提供的光信号样本光学地转换成宽带组合系列的上游光 信号采样并将宽带组合的上行光信号采样系列路由到目的地路由。 在下游通信中，当光交换装置接收利用扩频技术获得的下行光信号样本的宽带序列时，光开关装置将下行光信号样本的宽带序列光学地转换成系列的nn≥1的整数 下行光信号采样包括以下至少一个：下行光信号样本的宽带系列; 以及具有下游光信号样本的一系列下游光信号样本承载在离散信道波长上。 然后将nn个下行光信号样本路由分别路由到nn个路由。 还描述了相关装置和方法。

公开(公告)号：US07142549B2

公开(公告)日：2006-11-28

申请号：US09862446

申请日：2001-05-23

申请人： Gregory M Evans

发明人： Gregory M Evans

IPC分类号： H04L12/56 ,  H04J3/16

CPC分类号： H04L49/3081 ,  H04L2012/5663 ,  H04Q11/0478

摘要： An interface device for providing a gateway function between lines of a public switched telephone network (PSTN) that carry digital hierarchy signals and an asynchronous transfer mode (ATM) backbone network that carries signals in ATM format, the interface device comprising: a telephony transceiver operative to receive upstream digital hierarchy signals in a plurality of digital hierarchies from the PSTN; a hierarchy converter associated with the telephony transceiver and operative to convert at least some of said upstream digital hierarchy signals in a plurality of digital hierarchies to upstream signals in a single digital hierarchy distributed over a plurality of logical channels; an inverse multiplexing unit operatively associated with the hierarchy converter and operative to inverse-multiplex the upstream signals in the single digital hierarchy distributed over a plurality of logical channels; an ATM framer operatively associated with the inverse multiplexing unit and operative to map at least some of the upstream inverse-multiplexed digital hierarchy signals into ATM cells; and an ATM transceiver operatively associated with the ATM framer and operative to transmit said upstream signals in ATM format to the ATM backbone network.

摘要翻译： 一种用于在承载数字分层信号的公共交换电话网络（PSTN）和承载ATM格式的信号的异步传输模式（ATM）骨干网络的线路之间提供网关功能的接口设备，所述接口设备包括：电话收发器 从PSTN接收多个数字层级中的上游数字分层信号; 与电话收发器相关联的层级转换器，用于将多个数字层级中的所述上游数字层级信号中的至少一些转换成分布在多个逻辑信道上的单个数字层级中的上行信号; 反向复用单元，可操作地与分层转换器相关联并且可操作以对分布在多个逻辑信道上的单个数字层级中的上行信号进行反相复用; ATM成帧器，其与所述反向多路复用单元可操作地相关联并且用于将所述上游反向多路复用数字分层信号中的至少一些映射到ATM信元中; 以及与ATM成帧器可操作地相关联的ATM收发机，并且以ATM格式将所述上行信号发送到ATM骨干网络。

公开(公告)号：US07068947B2

公开(公告)日：2006-06-27

申请号：US09967981

申请日：2001-10-02

申请人： Uri Mahlab

发明人： Uri Mahlab

IPC分类号： H04B10/12

CPC分类号： H04B10/50 ,  H04B10/506 ,  H04B10/572 ,  H04J14/02 ,  H04J14/0298

摘要： A communication apparatus for use with a light source providing a light beam having a wavelength λ. The apparatus comprises at least one optical modulator adapted to modulate the light beam to a modulated light signal which comprises at least two additional spectral components, one of which at a wavelength of λ+Δλ and the other at a wavelength of λ−Δλ. The apparatus further comprises an optical splitting device adapted for coupling to the at least one optical modulator, for splitting the modulated light signal into at least two similar modulated light signals and at least two optical filters, each adapted to receive one of said at least two similar modulated light signals and to allow one of said at least two additional spectral components to egress therefrom.

摘要翻译： 一种与提供具有波长λ的光束的光源一起使用的通信装置。 该装置包括至少一个光调制器，其适于将光束调制到调制光信号，该调制光信号包括至少两个附加光谱分量，其中一个波长分别为λ+ Deltalambda波长，另一个在λ-Deltalλ波长处。 所述装置还包括适于耦合到所述至少一个光学调制器的光学分离装置，用于将调制的光信号分成至少两个类似的调制光信号和至少两个光学滤波器，每个光学滤波器适于接收所述至少两个 类似的调制光信号并且允许所述至少两个附加光谱分量之一从其中流出。

公开(公告)号：US07024116B2

公开(公告)日：2006-04-04

申请号：US09883341

申请日：2001-06-19

申请人： Shlomo Orbach ,  Mark Raymond Zaacks

发明人： Shlomo Orbach ,  Mark Raymond Zaacks

IPC分类号： H04J14/02

CPC分类号： H04J14/0209 ,  H04J14/0206 ,  H04J14/0208 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213

摘要： The invention proposes a Grouped Optical Add Drop Multiplexer (GOADM) comprising a periodic filter for forming a group of spaced optical wavelengths to be dropped or added.

摘要翻译： 本发明提出了一种分组光插入多路复用器（GOADM），其包括用于形成要丢弃或添加的一组间隔的光波长的周期滤波器。

公开(公告)号：US20050271033A1

公开(公告)日：2005-12-08

申请号：US11142395

申请日：2005-06-02

申请人： Shaul Nakash

发明人： Shaul Nakash

IPC分类号： H04L29/06 ,  H04J3/24

CPC分类号： H04L69/04

摘要： A technology for transmitting compressed data packets via a packet-based communications path extending between a compressing node and a decompressing node, the technology comprises transmitting groups of one or more compressed packets wherein each two consecutive groups are separated from each other by single partially compressed packets. The compressed packets are data packets each having a compressed header and comprising a first compression context ID (CID) for further decompression of the compressed data packets, while the partially compressed packets are data packets each having a partially compressed header and a second CID.

摘要翻译： 一种用于经由在压缩节点和解压缩节点之间延伸的基于分组的通信路径来发送压缩数据分组的技术，所述技术包括传送一个或多个压缩分组的组，其中每两个连续组通过单个部分压缩分组彼此分离 。 压缩分组是每个具有压缩报头并且包括用于进一步解压缩压缩数据分组的第一压缩上下文ID（CID）的数据分组，而部分压缩分组是每个都具有部分压缩报头和第二CID的数据分组。

公开(公告)号：US20050185643A1

公开(公告)日：2005-08-25

申请号：US11031010

申请日：2005-01-10

申请人： Noam Goldberg ,  Eitan Yehuda

发明人： Noam Goldberg ,  Eitan Yehuda

IPC分类号： H04J3/08 ,  H04J3/14 ,  H04L12/24 ,  H04Q3/00 ,  H04Q11/04 ,  H04L12/28

CPC分类号： H04J3/14 ,  H04J2203/0053 ,  H04J2203/006 ,  H04L41/0677 ,  H04Q3/0079 ,  H04Q2213/13141 ,  H04Q2213/13145 ,  H04Q2213/13167

摘要： Technology for rerouting a data stream in a communication circuit switched mesh network comprising one or more cross-connecting nodes, the data stream comprises a plurality of data frames each associated with at least one overhead byte, and the rerouting is performed by using a path identifier while switching the data stream at one or more cross-connecting nodes; the path identifier is carried by at least one overhead byte associated with at least one of the data frames.

摘要翻译： 在包括一个或多个交叉连接节点的通信电路交换网状网络中重新路由数据流的技术，数据流包括多个数据帧，每个数据帧与至少一个开销字节相关联，并且重新路由通过使用路径标识符 同时在一个或多个交叉连接节点切换数据流; 该路径标识符由至少一个与至少一个数据帧相关联的开销字节承载。

公开(公告)号：US06934301B2

公开(公告)日：2005-08-23

申请号：US09907748

申请日：2001-07-19

申请人： Reuven D. Jordan

发明人： Reuven D. Jordan

IPC分类号： H04J3/16 ,  H04L7/04 ,  H04L25/05 ,  H04Q11/04 ,  H04J3/00 ,  H04L12/28

CPC分类号： H04J3/1617 ,  H04J2203/0085 ,  H04L25/05 ,  H04L2007/045

摘要： A method and apparatus for converting bursty, packetized data traffic from a wide bandwidth network to a constant, average rate traffic on a payload network having a narrower bandwidth is disclosed. The method includes converting a packet burst received from the wide bandwidth network to a serial stream having first and second pluralities of bytes, the second plurality of bytes having only idle bytes; substituting a place keeping flag for said second plurality of bytes thereby providing a reduced data; encapsulating the reduced data in a second packet; and providing the second packet to the narrower bandwidth network at a constant, average traffic rate. The method also includes converting the second packet received from the narrower bandwidth network to a second serial stream; substituting a plurality of idle bytes for the place keeping flags; converting the second serial stream and substituted idle bytes to a third packet; and providing the third packet to the wide bandwidth network.

摘要翻译： 公开了一种用于将来自宽带宽网络的突发分组数据业务转换为具有较窄带宽的有效载荷网络上的恒定平均速率业务的方法和装置。 该方法包括将从宽带网络接收的分组串转换为具有第一和第二多个字节的串行流，第二多个字节仅具有空闲字节; 将所述第二多个字节的位置保持标志代替，从而提供减少的数据; 将减少的数据封装在第二分组中; 并以恒定的平均业务速率向较窄带宽网络提供第二分组。 该方法还包括将从较窄带宽网络接收的第二分组转换为第二串行流; 将多个空闲字节替换为保存标记; 将第二串行流和替代的空闲字节转换为第三个分组; 并向宽带网络提供第三个分组。

公开(公告)号：US20050063497A1

公开(公告)日：2005-03-24

申请号：US10940816

申请日：2004-09-15

申请人： Uri Mahlab ,  Avi Levy

发明人： Uri Mahlab ,  Avi Levy

IPC分类号： H04B10/00 ,  H04B10/02 ,  H04B10/077 ,  H04B10/08 ,  H04J14/02 ,  H04L1/20 ,  H04B1/69

CPC分类号： H04B10/0775 ,  H04B2210/078 ,  H04J14/0201 ,  H04J14/021 ,  H04L1/203

摘要： Technology is proposed for estimating one or more characteristics of a main signal transmitted via a communication link, wherein the main signal is composed from a number of component signals possibly comprising respective data signals and transmitted via a number of respective communication channels. The technology comprises providing an analyzing circuit independent from the communication link, transmitting a probe data signal in the analyzing circuit, monitoring a bit error rate (BER) parameter associated with the probe data signal and introducing into the analyzing circuit at least a portion of energy of the main signal as an interference signal. The technology allows judging about characteristics of the main signal based on changes in the monitored BER parameter of the probe data signal.

摘要翻译： 提出了用于估计经由通信链路发送的主信号的一个或多个特性的技术，其中主信号由可能包括相应数据信号的多个分量信号组成并且经由多个相应通信信道发送。 该技术包括提供独立于通信链路的分析电路，在分析电路中发送探测数据信号，监测与探测数据信号相关的误码率（BER）参数，并将至少一部分能量引入分析电路 的主信号作为干扰信号。 该技术允许根据探测数据信号的监测BER参数的变化判断主信号的特性。

公开(公告)号：US20040218551A1

公开(公告)日：2004-11-04

申请号：US10824378

申请日：2004-04-15

申请人： ECI TELECOM LTD

发明人： Noam Goldberg ,  Igor Balter ,  Idan Kaspit

IPC分类号： H04L012/28

CPC分类号： H04L45/48 ,  H04L12/462 ,  H04L12/4641

摘要： A method for utilizing a Spanning Tree Protocol (STP) in an Ethernet network wherein a number of VLANs are defined and a plurality of Ethernet switching nodes (A, B, C D E, F, G H) are interconnected via their ports (A1, . . . ,H4) so that each of the ports is initially assigned to one or more VLANs, and each of the VLANs is intended to enable traffic between two or more edge ports (D3, B3). The method comprises also-called pruning procedure initiated upon establishing a new STP topology (30) related to one or more VLANs. This procedure concerns a broadcast domain of at least one of the VLANs and is aimed at obtaining a sub-tree for each pruned VLAN in the new STP topology. The sub-tree is usually shrunk, bound by the edge ports assigned to the corresponding pruned VLAN, and thus eliminates broadcast traffic of the pruned VLAN to any Ethernet switch extending beyond the obtained sub-tree.

摘要翻译： 一种在以太网中利用生成树协议（STP）的方法，其中定义了多个VLAN，并且多个以太网交换节点（A，B，CDE，F，GH）经由其端口（A1，...， ，H4），使得每个端口最初被分配给一个或多个VLAN，并且每个VLAN旨在启用两个或更多个边缘端口（D3，B3）之间的流量。 该方法还包括在建立与一个或多个VLAN相关的新STP拓扑（30）时启动的也称为修剪过程。 该过程涉及至少一个VLAN的广播域，并且旨在获得新STP拓扑中每个修剪的VLAN的子树。 子树通常​​被收缩，由分配给相应修剪的VLAN的边缘端口绑定，从而消除了修剪的VLAN到超出所获得的子树的任何以太网交换机的广播流量。