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    • 21. 发明授权
    • Method and device of analyzing a signal transmitted via a communication link
    • 分析通过通信链路发送的信号的方法和装置
    • US07457354B2
    • 2008-11-25
    • US10940816
    • 2004-09-15
    • Uri MahlabAvi Levy
    • Uri MahlabAvi Levy
    • H04B3/46
    • H04B10/0775H04B2210/078H04J14/0201H04J14/021H04L1/203
    • 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.
    • 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。
    • 22. 发明申请
    • Method and System For Measuring Average Q-Factor in Optical Networks
    • 光网络平均Q因子测量方法与系统
    • US20080279550A1
    • 2008-11-13
    • US12095839
    • 2006-11-14
    • Uri Mahlab
    • Uri Mahlab
    • H04B17/00
    • H04B10/00
    • A technique for determining averaged Q-factor, Qavg, for an optical binary signal transmitted at a bit rate X, based on amplitude histogram evaluation and on asynchronous sampling. The technique is inexpensive since it uses sampling pulses, which have bit rate Y lower than X and are not synchronized with the optical signal. The technique proposes conducting N sampling sessions and constructing N respective amplitude histograms for the sessions, wherein an initial session is conducted at a randomly selected initial phase of the sampling pulses, and N−1 sessions are held at different phases shifted in respect of the initial phase. The technique then compares the obtained N amplitude histograms to select there-from the amplitude histogram having the minimal cumulative value of cross-point data. The averaged Q-factor is determined from the selected histogram, with accuracy comparable with that of synchronous methods.
    • 用于基于幅度直方图评估和异步采样来确定以比特率X发送的光学二进制信号的平均Q因子Qavg的技术。 该技术是廉价的,因为它采用比特率Y低于X并且与光信号不同步的采样脉冲。 该技术提出进行N个采样会话并构建用于会话的N个相应振幅直方图,其中在采样脉冲的随机选择的初始阶段进行初始会话,并且N-1个会话保持在相对于初始 相。 然后,该技术将所获得的N个振幅直方图进行比较,以从具有交叉点数据的最小累积值的振幅直方图中进行选择。 平均Q因子由所选直方图确定,准确度与同步方法相当。
    • 23. 发明申请
    • Method for providing broadband communication service
    • 提供宽带通信业务的方法
    • US20080062999A1
    • 2008-03-13
    • US11518225
    • 2006-09-11
    • Michel Platnic
    • Michel Platnic
    • H04L12/56
    • H04L12/2803H04L63/08H04L63/101H04L2463/101
    • A method is provided to enable providing broadband communication services to a subscriber having a number of devices connected to a regional gateway (e.g. CPE). The method comprises the steps of: carrying out on authentication process between at one of the subscriber's devices and a network server, upon authenticating the subscriber, downloading information associated with that subscriber to an access node. At the access node, designating a port for communications with the regional gateway, and based on identification of the subscriber, allowing the provisioning of broadband communication services to all of the subscriber's devices connected to regional gateway. When the subscriber's device used for the authentication process is disconnected, the system shall continue allowing the provisioning of the already allowed broadband communication services to the remaining devices that are still connected to the regional gateway.
    • 提供了一种能够向具有连接到区域网关(例如CPE)的多个设备的用户提供宽带通信服务的方法。 该方法包括以下步骤:在用户设备之一和网络服务器之间进行认证过程,在认证用户时,将与该用户相关联的信息下载到接入节点。 在接入节点,指定用于与区域网关通信的端口,并且基于用户的识别,允许向连接到区域网关的所有用户设备提供宽带通信服务。 当用于认证过程的用户设备断开连接时,系统将继续允许向仍然连接到区域网关的其余设备提供已经允许的宽带通信服务。
    • 29. 发明授权
    • Optical switching apparatus and methods
    • 光开关装置及方法
    • US07181139B2
    • 2007-02-20
    • US09976243
    • 2001-10-15
    • Doron HandelmanUri Mahlab
    • Doron HandelmanUri Mahlab
    • H04J14/00
    • H04Q11/0005H04Q11/0062H04Q2011/0024H04Q2011/0033H04Q2011/0039H04Q2011/0073H04Q2011/0075
    • 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.
    • 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。
    • 30. 发明授权
    • Digital hierarchy based communication systems
    • 基于数字层次的通信系统
    • US07142549B2
    • 2006-11-28
    • US09862446
    • 2001-05-23
    • Gregory M Evans
    • Gregory M Evans
    • H04L12/56H04J3/16
    • H04L49/3081H04L2012/5663H04Q11/0478
    • 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.
    • 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。