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    • 2. 发明授权
    • System and method of providing a high-quality voice network architecture
    • 提供高质量语音网络架构的系统和方法
    • US08125981B2
    • 2012-02-28
    • US12266847
    • 2008-11-07
    • Farhad BarzegarIrwin GerszbergThomas H. Hill, Jr.Scott Joseph Mollica
    • Farhad BarzegarIrwin GerszbergThomas H. Hill, Jr.Scott Joseph Mollica
    • H04L12/64
    • H04L12/66
    • Embodiments of the invention include a system and method for providing high quality voice/sound communications over a local loop of a telephone network. The method aspect of the invention comprises receiving a voice signal, digitizing the voice signal into a high quality voice signal, utilizing sampling rates greater than 8000 samples per second and/or sample sizes greater than 8 bits per sample, negotiating voice processing characteristics between a customer premises equipment and a network element such as a softswitch, receiving speech from a user at a customer premises equipment according to the negotiation, converting the received speech into high bandwidth signal and transmitting the high bandwidth signal to a telephone local loop, transmitting the high bandwidth signal from the local loop to wideband node that packetizes the high bandwidth signal for transmission to a packet network and receiving the packetized signal from the packet network at a switch that switches between an on-network or off-network status. A voice over IP platform may also be used to route packetized signals from the packet network to either the telephone network or another packet network.
    • 本发明的实施例包括用于通过电话网络的本地环路提供高质量语音/声音通信的系统和方法。 本发明的方法方面包括接收语音信号,将语音信号数字化为高质量语音信号,利用大于每秒8000个采样的采样率和/或每个样本大于8位的采样大小,协商语音处理特性 客户端设备和诸如软交换机的网元,根据协商从客户端设备接收用户的语音,将接收到的语音转换成高带宽信号,并将高带宽信号发送到电话本地环路,发送高电平 从本地环路到宽带节点的带宽信号,其分组高带宽信号以传输到分组网络,并且在切换在网络上或离网状态的交换机处从分组网络接收分组信号。 也可以使用IP语音平台来将分组信号从分组网络路由到电话网络或另一分组网络。
    • 10. 发明授权
    • Circuit to provide backup telephone service for a multiple service access system using a twisted pair
    • 为使用双绞线的多业务接入系统提供备用电话业务的电路
    • US07394757B2
    • 2008-07-01
    • US11044675
    • 2005-01-27
    • Farhad BarzegarIrwin GerszbergPhilip Andrew Treventi
    • Farhad BarzegarIrwin GerszbergPhilip Andrew Treventi
    • G01R31/08
    • H04M3/12H04M3/005H04M3/2209H04M3/30
    • A subscriber link to a central office which employs data compression, forward error correction, and advanced modulation techniques and to connect subscribers to multiple communications networks to provide an array of services. A device provides normal telephone service in the event of an equipment failure. At the subscriber end, a server called an intelligent services director (ISD) provides multiple independent connections for telephones which ordinarily connect to multiple access virtual circuits generated on the subscriber link over a twisted pair. A device called a facilities management platform (FMP) at the central office end of the link, among other things, provides interfacing of the subscriber link to various networks including a digital subscriber loop (DLC) and packet switched networks. Ordinarily telephones connected to the ISD require power and correctly functioning modems and controllers in the ISD and the FMP to have access to the outside world. A fail-safe mechanism, however allows at least one chosen phone to function in the event of a failure. The chosen phone must be capable of pulse or DTMF dialing. The connection through which it operate can be switched directly to the twisted pair media connecting to the FMP. At the FMP, the twisted pair is switched to tie the connection directly to a line card of the DLC. Alternatively, the ISD contains an interface to a specialize phone designed for the ISD environment. The interface provides the appearance to the DLC of a regular POT.
    • 与中央局的订户链路,其采用数据压缩,前向纠错和高级调制技术,并将用户连接到多个通信网络以提供一系列服务。 在设备故障的情况下,设备提供正常的电话服务。 在用户端,称为智能服务指导(ISD)的服务器为电话提供多个独立连接,通常通过双绞线连接到在订户链路上生成的多个接入虚拟电路。 在链路的中心局端被称为设施管理平台(FMP)的设备,其中包括用户链路与包括数字用户环路(DLC)和分组交换网络在内的各种网络的接口。 连接到ISD的通常电话需要电力和正确运行的ISD和FMP中的调制解调器和控制器才能访问外部世界。 然而,故障安全机制允许至少一个所选择的电话在发生故障时起作用。 所选手机必须能够进行脉冲或DTMF拨号。 其操作的连接可以直接切换到连接到FMP的双绞线介质。 在FMP中,双绞线被切换以将连接直接连接到DLC的线卡。 或者,ISD包含专为ISD环境专门设计的手机的接口。 该界面为DLC提供了常规POT的外观。