公开(公告)号：US20150063551A1

公开(公告)日：2015-03-05

申请号：US14477440

申请日：2014-09-04

申请人： Adtran Inc.

发明人： Martin Kuipers

IPC分类号： H04M3/34 ,  H04B3/46 ,  H04M3/22

CPC分类号： H04M3/34 ,  H04B3/32 ,  H04B3/487 ,  H04L1/24 ,  H04M3/12 ,  H04M3/2209 ,  H04M3/305

摘要： Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for data processing in a digital subscriber line environment are provided. In one aspect a method includes (i) determining a deterioration of a connection between a centralized unit and a decentralized unit during an initialization of the connection; and (ii) disabling the connection based on the deterioration.

摘要翻译： 提供了在数字用户线环境中进行数据处理的方法，系统和装置，包括在计算机存储介质上编码的计算机程序。 一方面，一种方法包括（i）在连接的初始化期间确定集中式单元与分散单元之间的连接的恶化; 和（ii）基于恶化来禁用连接。

公开(公告)号：US20040208590A1

公开(公告)日：2004-10-21

申请号：US10193815

申请日：2002-07-12

申请人： ADTRAN, INC.

发明人： David H. Nabors ,  David P. Nelson

IPC分类号： H04B010/00

CPC分类号： H04B10/25752

摘要： The potential threat to digital radio baseband equipment from excessive currents in an electrical communication cable, due to a lightning strike at or near the top of an RF transceiver tower is avoided by replacing the electrical cable with a non-electrical signaling path, in particular a fiber optic signaling path. Power for the RF transceiver is conveyed to the tower in a separate electrical link. This serves to effectively electrically isolate baseband equipment from a potential source of potential lightning strikes, while at the same time providing full intra-communication connectivity within the digital radio.

摘要翻译： 通过用非电信令路径替换电缆，避免了由于在RF收发器塔顶部或靠近RF收发器塔顶部的雷击而导致的电气通信电缆中过多电流对数字无线电基带设备的潜在威胁，特别是 光纤信令路径。 RF收发器的电源以独立的电气链路传输到塔架。 这有助于将基带设备与潜在的雷击潜在的电源隔离，同时在数字无线电中提供完整的通信内连接。

公开(公告)号：US20040190686A1

公开(公告)日：2004-09-30

申请号：US10403308

申请日：2003-03-31

申请人： ADTRAN, INC.

发明人： Bradley Dwayne Tidwell ,  Steven M. Robinson ,  James Michael Hawkins

IPC分类号： H04M001/24 ,  H04M003/08 ,  H04M003/22

CPC分类号： H04M3/304 ,  H04M3/12 ,  H04M3/18

摘要： Whether or not protection circuitry for a span-powered remote digital subscriber loop unit is properly connected to earth ground is determined by the deliberate assertion and detection of a ground fault from a central office line card location. The span-powered remote unit is augmented to place a controllable conduction path in circuit with the span-powered loop and an earth ground pin. If the earth ground pin has been properly connected to earth ground, applying the conductive path will place a ground fault on the span, which is detected by a ground fault detector within the central office line card. If the ground fault detector does not detect a ground fault in response to the application of the conductive path, the line card forwards a negative ground fault event message to a test center, so that a service technician may be dispatched to the remote unit to correct the problem.

摘要翻译： 跨度供电的远程数字用户回路单元的保护电路是否正确连接到地面是否由有意断言和从中心局线路卡位置检测到接地故障来确定。 跨度供电的遥控单元被增加，以将可控传导路径放置在与跨度供电环路和接地引脚的电路中。 如果接地脚已经正确连接到地面，则施加导电路径将在中心局线路卡中的接地故障检测器检测到的跨度上发生接地故障。 如果接地故障检测器不响应于导电路径的应用来检测到接地故障，则线卡将负接地故障事件消息转发到测试中心，以便可以将维修技术人员发送到远程单元以进行校正 问题。

公开(公告)号：US20040008671A1

公开(公告)日：2004-01-15

申请号：US10610213

申请日：2003-06-30

申请人： ADTRAN, INC.

发明人： Kyle A. Farnsworth ,  C. Brian Goodwin ,  Lin Yow-Chern Chang

IPC分类号： H04L012/66

CPC分类号： H04L29/06 ,  H04L69/16 ,  H04L69/161 ,  H04L69/164 ,  H04L69/169 ,  H04Q11/0471 ,  H04Q2213/13093 ,  H04Q2213/13096 ,  H04Q2213/13097 ,  H04Q2213/13202 ,  H04Q2213/13209 ,  H04Q2213/13296 ,  H04Q2213/13389 ,  H04Q2213/13396

摘要： A communication control mechanism installable in the communications controller of an ISDN terminal adapter is operative to conduct in-band communications with its digital terminal device during an internet communication session between the digital terminal device and a digital communication network interface of an internet service provider. The terminal adapter monitors the data link establishment communication exchange between the network access server and the personal computer, to identify and capture internet protocol addresses for the digital terminal device and the network access interface. These addresses are then used by the terminal adapter to communicate in-band with the digital terminal device using user datagram protocol (UDP)-based messages.

摘要翻译： 可以在ISDN终端适配器的通信控制器中安装的通信控制机构在数字终端设备和互联网服务提供商的数字通信网络接口之间的因特网通信会话期间与其数字终端设备进行带内通信。 终端适配器监视网络接入服务器和个人计算机之间的数据链路建立通信交换，识别和捕获数字终端设备和网络接入接口的互联网协议地址。 这些地址然后被终端适配器用于使用基于数据报协议（UDP）的消息与数字终端设备进行带内通信。

公开(公告)号：US20030185385A1

公开(公告)日：2003-10-02

申请号：US10114531

申请日：2002-04-01

申请人： ADTRAN, INC.

发明人： Ralph R. Boudreaux JR. ,  John S. McGary ,  Steven M. Robinson ,  John B. Wilkes JR.

IPC分类号： H04M001/00 ,  H04M009/00

CPC分类号： H04M19/02

摘要： A power management circuit for a remote access platform extracts power from a wireline for powering a ring generator that generates a ringing voltage signal that is distributed to a plurality of subscriber circuits. A power-limited voltage converter steps up the wireline voltage to a higher nullisolatingnull voltage, charging a capacitor coupled to the ring generator. A monitor circuit reduces the power that the power-limited voltage converter can draw, if the wireline voltage drops too low. This prevents the wireline voltage from collapsing should the remote terminal be deployed at a distance from wireline voltage source (the central office) greater than its specified capability.

摘要翻译： 用于远程接入平台的电源管理电路从有线线路提取功率，为环形发生器供电，该环形发生器产生分配给多个用户电路的振铃电压信号。 功率受限的电压转换器将有线电压升高到更高的“隔离”电压，为耦合到环形发生器的电容器充电。 如果有线电压降得太低，监控电路可以降低功率限制电压转换器可以吸收的功率。 如果远程终端远离有线电压源（中心局）远远超过其指定的能力，则可防止有线电压崩溃。

公开(公告)号：US20030174712A1

公开(公告)日：2003-09-18

申请号：US10095380

申请日：2002-03-12

申请人： ADTRAN INC.

发明人： Phillip Stone Herron ,  Bruce Edward Mitchell

IPC分类号： H04L012/56

CPC分类号： H04Q11/0478 ,  H04L2012/561 ,  H04L2012/5656 ,  H04L2012/5671 ,  H04L2012/5681

摘要： A voice path direct memory access (DMA)-based packet generation mechanism writes digitally encoded voice samples directly into prescribed subportions of a preallocated portion of random access memory, to avoid interrupting a main processor for the purpose. A pointer to a respective buffer space subportion is presented to a protocol stack, so that one or more overhead bytes for the stored voice samples can be generated and written into adjacent address space of the preallocated portion of random access memory. The contents of the preallocated memory space are then serialized out for transmission to a destination receiver.

摘要翻译： 基于语音路径直接存储器访问（DMA）的分组生成机制将数字编码的语音样本直接写入随机存取存储器的预分配部分的规定子部分中，以避免为了该目的而中断主处理器。 指向相应的缓冲空间子部分的指针被呈现给协议栈，使得可以生成用于所存储的语音样本的一个或多个开销字节并将其写入随机存取存储器的预分配部分的相邻地址空间。 然后将预先分配的存储器空间的内容串行化以传输到目的地接收机。

公开(公告)号：US20030174451A1

公开(公告)日：2003-09-18

申请号：US10098097

申请日：2002-03-13

申请人： ADTRAN, INC.

发明人： Ralph R. Boudreaux JR. ,  John S. McGary ,  Steven M. Robinson

IPC分类号： H02H003/00

CPC分类号： H04M3/18

摘要： A ground fault current-limiting circuit for limiting telecommunication wireline voltage and ground fault current to prescribed safety parameters has a ground fault current sense resistor and associated line voltage control circuit installed in a ground-coupling link to the center tap of the output winding of a bipolar voltage converter's output transformer. The control circuit compares ground fault current of either polarity flowing through the sense resistor to a prescribed value. In response to this current limit being exceeded, the control circuit produces an output signal that causes the power source to reduce its output voltage so that the ground fault current will drop to within acceptable limits.

摘要翻译： 用于将通信电缆电压和接地故障电流限制到规定的安全参数的接地故障限流电路具有接地故障电流检测电阻器和相关的线路电压控制电路，其安装在与输出绕组的输出绕组的中心抽头的地耦合链路中 双极性电压转换器输出变压器。 控制电路将流过检测电阻器的任一极性的接地故障电流与规定值进行比较。 响应于超过该电流限制，控制电路产生使电源减小其输出电压的输出信号，使得接地故障电流将下降到可接受的限度内。

公开(公告)号：US20030036363A1

公开(公告)日：2003-02-20

申请号：US09971413

申请日：2001-10-05

申请人： Adtran, Inc.

发明人： David Eric Jones ,  Jason N. Morgan ,  Stacy Morris Murphree ,  Jason Ted Brock

IPC分类号： H04B001/38

CPC分类号： H04L43/00 ,  H04L43/0817 ,  H04M3/005 ,  H04M3/10 ,  H04M3/12 ,  H04M19/00 ,  H04Q1/028

摘要： A (DS3) network interface unit (NIU) by-pass architecture places the NIU on its own circuit card and exclusive of by-pass switching (and relay) components, which are installed in the equipment shelf, proper, so that physical removal of the NIU card will leave the by-pass circuitry intact. The by-pass circuit responds to an abnormality of the NIU card, such as malfunction or physical removal of the NIU from its card slot, and also to a power supply failure. It also contains an indicator to draw attention to a failed NIU, increasing the likelihood that someone will notice a damaged card.

摘要翻译： A（DS3）网络接口单元（NIU）旁路架构将NIU放置在其自身的电路卡上，并且不包括安装在设备机架中的旁路开关（和继电器）组件，从而物理去除 NIU卡将保留旁路电路。 旁路电路响应NIU卡的异常，例如NIU从其卡槽中的故障或物理去除以及电源故障。 它还包含一个指标，提请注意失败的NIU，增加有人会注意到损坏的卡的可能性。

公开(公告)号：US20030016736A1

公开(公告)日：2003-01-23

申请号：US09910146

申请日：2001-07-20

申请人： ADTRAN, INC

发明人： Thomas L. Ballard III ,  John B. Wilkes JR. ,  Kevin W. Schneider

IPC分类号： H04B001/38 ,  H04L005/16

CPC分类号： H04L1/0002 ,  Y02D50/10

摘要： An upstream transceiver, coupled to an upstream end of a long haul, single digital subscriber loop of an extended range asymmetrical digital subscriber line communication system, nullspoofsnull a (co-located) digital subscriber line access multiplexer to reduce its downstream data rate over a short haul loop to the upstream transceiver. The reduced downstream data rate is compatible with the data rate that can be supported by the long haul loop and also accommodates an auxiliary (64K) POTS channel thereover. The reduced data rate may be derived by preliminary signal quality measurements upon the long communication loop conducted between the upstream transceiver and a downstream transceiver coupled to a remote end of the long haul loop.

摘要翻译： 一个上游收发器，耦合到长距离的扩展范围非对称数字用户线通信系统的长距离单数字用户环路的上游端，“欺骗”（共址）数字用户线路接入复用器以降低其下行数据速率 上行收发器的短程回路，减少的下行数据速率与长途回路可支持的数据速率兼容，并且还容纳了一个辅助（64K）POTS信道，减少的数据速率可以通过初步 在上游收发器与耦合到远程回路的远端的下游收发器之间进行长通信环路的信号质量测量。

公开(公告)号：US20030016694A1

公开(公告)日：2003-01-23

申请号：US09910707

申请日：2001-07-20

申请人： ADTRAN, INC.

发明人： Kevin W. Schneider ,  Thomas L. Ballard III ,  John B. Wilkes JR. ,  Philip David Williams ,  Gary M. Willoughby ,  Mark Jeffries Ogden ,  Michael Scott Sansom ,  W. Stuart Venters

IPC分类号： H04L012/66

CPC分类号： H04L12/2883 ,  H04L12/2856 ,  H04L12/289 ,  H04L12/66

摘要： Relatively low cost asymmetric digital subscriber line (ADSL) service and auxiliary POTS service are delivered over extended distances (e.g., at least 20-25 kft), by a hybrid ADSL-SDSL architecture insertable between central office and remote sites of an ADSL system. Central office and remote site transceivers employ trellis coded pulse amplitude modulation and a data rate that conforms with the signal transport capability of an extended distance symmetric DSL (SDSL) loop, while providing a 64K POTS channel. The central office and remote site transceivers controllably insert idle asynchronous transfer mode (ATM) cells in upstream and downstream ADSL channels to compensate for timing differences with ADSL equipment.

摘要翻译： 相对低成本的非对称数字用户线（ADSL）服务和辅助POTS服务通过可插入在ADSL系统的中心局和远程站点之间的混合ADSL-SDSL架构在长距离（例如至少20-25kft）上传送。 中央办公室和远程站点收发器采用格状编码脉冲幅度调制和符合扩展距离对称DSL（SDSL）环路的信号传输能力的数据速率，同时提供64K POTS信道。 中心局和远程站点收发器可控制地将上行和下行ADSL通道中的空闲异步传输模式（ATM）单元插入，以补偿与ADSL设备的时序差异。