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    • 3. 发明申请
    • APPARATUSES, SYSTEMS, METHODS, AND COMPUTER PROGRAM PRODUCTS FOR ADD-DROP MULTIPLEXING
    • 用于ADD-DROP多路复用的设备,系统,方法和计算机程序产品
    • WO2016025398A1
    • 2016-02-18
    • PCT/US2015/044491
    • 2015-08-10
    • CORIANT OPERATIONS, INC
    • CHAN, Eric L.KANGAS, Bradley R.HU, Peigang
    • H04J14/02H04Q11/00
    • H04J14/0205H04J14/0206H04J14/021H04J14/0283H04J14/0286H04J14/0287H04Q11/0067H04Q2011/0081
    • A network element includes first and second multiplexers, first and second interfaces, and first and second selecting units. The multiplexers are communicatively coupled. The first interface is communicatively coupled to the first multiplexer and configured to receive multiplexed signals. The second interface is communicatively coupled to the second multiplexer and configured to receive multiplexed signals. The first selecting unit is communicatively coupled to the first and second multiplexers and configured to select between a signal received from the first multiplexer and a signal received from the second multiplexer. The second selecting unit is also communicatively coupled to the first and second multiplexers and configured to select between a signal received from the first multiplexer and a signal received from the second multiplexer.
    • 网元包括第一和第二多路复用器,第一和第二接口以及第一和第二选择单元。 多路复用器通信耦合。 第一接口通信地耦合到第一多路复用器并且被配置为接收复用的信号。 第二接口通信地耦合到第二多路复用器并且被配置为接收复用的信号。 第一选择单元通信地耦合到第一和第二多路复用器,并且被配置为在从第一多路复用器接收的信号和从第二多路复用器接收的信号之间进行选择。 第二选择单元还通信地耦合到第一和第二多路复用器,并且被配置为在从第一多路复用器接收的信号和从第二多路复用器接收的信号之间进行选择。
    • 6. 发明申请
    • ECHO DETECTION AND DELAY ESTIMATION USING A PATTERN RECOGNITION APPROACH AND CEPSTRAL CORRELATION
    • 使用模式识别方法和CEPSTRAL相关的ECHO检测和延迟估计
    • WO2007123727A2
    • 2007-11-01
    • PCT/US2007/007970
    • 2007-03-30
    • TELLABS OPERATIONS, INC.SUKKAR, Rafid, A.
    • SUKKAR, Rafid, A.
    • H04B3/23
    • H04B3/234
    • A method, apparatus, system, and program, for evaluating communication signals exchanged between communicating devices through at least one communication path. The method comprises performing a similarity function or distance function to determine if the communication signals include at least one substantially similar pattern, and reporting an existence of a predetermined condition if it is determined in the performing that the communication signals include a substantially similar pattern. The predetermined condition can be, for example, an echo condition in a single talk or double talk condition, and the echo condition can be acoustical or electrical in origin. The method adapts features and techniques that have been used successfully in speech recognition for successful application in the echo detection and double talk contexts, and the similarity function preferably is based on cepstral correlation according to the invention.
    • 一种用于评估通过至少一个通信路径在通信设备之间交换的通信信号的方法,装置,系统和程序。 该方法包括执行相似度函数或距离函数以确定通信信号是否包括至少一个基本相似的模式,并且如果在执行通信信号包括基本相似的模式中确定的话,则报告预定条件的存在。 预定条件可以是例如单个通话或双向通话状态中的回声条件,并且回波条件可以是声学或电原点。 该方法适用于成功应用于回声检测和双向上下文中已经成功应用于语音识别中的特征和技术,并且相似度函数优选地基于根据本发明的倒谱相关性。