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公开(公告)号：US5682385A
公开(公告)日：1997-10-28
申请号：US533078
申请日：1995-09-25
申请人： Frank X. Garcia , Donald Koch
发明人： Frank X. Garcia , Donald Koch
CPC分类号： H04J3/14 , H04Q1/028 , H04Q11/0435 , H04Q2213/13003 , H04Q2213/13209 , H04Q2213/13298 , H04Q2213/13332 , Y10S370/904
摘要： A system for use by a multiplexing telecommunications interface that allows the interface to communicate with a larger variety of digital subscriber loop protocols, such as ISDN. For example, a remote terminal may include common equipment that allocates a limited bandwidth to particular channel cards. Such channel cards control the flow of information between a digital subscriber loop and a digital transmission facility. If the bandwidth allocated to a particular channel card is insufficient, a provisioning channel card may be used which will signal the common equipment that it exists and should be allocated to a bandwidth. However, the provisioning channel card will effectively provide its bandwidth to at least one other channel card, which will use the additional bandwidth to meet the requirements of a particular protocol, such as ISDN.
摘要翻译： 一种由复用电信接口使用的系统，其允许接口与诸如ISDN之类的各种数字用户环路协议进行通信。 例如，远程终端可以包括向特定信道卡分配有限带宽的公共设备。 这种信道卡控制数字用户环路和数字传输设施之间的信息流。 如果分配给特定信道卡的带宽不足，则可以使用提供信道卡，其将向共同设备通知它存在并且应当被分配给带宽。 然而，配置信道卡将有效地向至少一个其他信道卡提供其带宽，其将使用附加带宽来满足特定协议（例如ISDN）的要求。
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公开(公告)号：US5438606A
公开(公告)日：1995-08-01
申请号：US55531
申请日：1993-04-30
申请人： Guy C. Cerulli
发明人： Guy C. Cerulli
摘要： An open power loop detector for digital transmission line elements using a pulsed, direct current test. The element detects when a fault in transmission lines has been corrected and the element should move from a loop powered mode back to a normal through powered mode. The detector includes a voltage regulator, voltage booster, current detector, and controller. The controller periodically activates the voltage booster to increase the direct current load between the transmit and receive cable pairs of the transmission lines. The current detector then senses whether a current is flowing between the center tap leads of the transmit cable pair. If no current is detected, indicating that the downstream transmission line still has a discontinuity, the controller waits a predetermined period of time before again activating the voltage booster and performing another test. When the current detector detects current during such a test, indicating that the cable incontinuity has been repaired, the controller moves the element to a through powered mode of operation.
摘要翻译： 一种使用脉冲直流电流测试的数字传输线元件的开放式电源环路检测器。 元件检测传输线路中的故障是否已被修正，并且元件应通过电源模式从循环供电模式恢复到正常状态。 检测器包括电压调节器，升压器，电流检测器和控制器。 控制器周期性地激活升压器以增加传输线的发射和接收电缆对之间的直流负载。 然后，电流检测器检测电流是否在发射电缆对的中心抽头之间流动。 如果没有检测到电流，指示下游传输线仍然具有不连续性，则控制器在再次激活升压器并执行另一测试之前等待预定时间段。 当电流检测器在这样的测试期间检测到电流时，指示电缆不连续性已经被修复，控制器将元件移动到通过供电的操作模式。
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公开(公告)号：US5422950A
公开(公告)日：1995-06-06
申请号：US282426
申请日：1994-07-28
申请人： Bruce R. Miller , Frank X. Garcia
发明人： Bruce R. Miller , Frank X. Garcia
摘要： An automatic loss compensation for use in a two to four wire hybrid converter in a telephone system. Many hybrid converters provide a substantially fixed gain for receive signals that are provided to the customer loop telephone line and for transmit signals that are provided to the digital carrier transmission line. The compensation circuit includes a measurement circuit, controller, and receive and transmit amplifier. The measurement circuit determines the length of the customer loop telephone line and provides a length signal. The controller receives the length signal and categorizes the length as being within one of a plurality of segments. The controller appropriately varies the amplification and phase of the receive signal, which is then combined with an inverted transmit signal, in order to substantially reduce reflected signals from the transmission line and transmission line termination.
摘要翻译： 一种用于电话系统中的二至四线混合转换器的自动损耗补偿。 许多混合转换器为提供给客户回路电话线的接收信号和提供给数字载波传输线的发射信号提供基本上固定的增益。 补偿电路包括测量电路，控制器和接收和发射放大器。 测量电路确定客户回路电话线的长度并提供长度信号。 控制器接收长度信号并将长度分类为多个段之一。 控制器适当地改变接收信号的放大和相位，然后将其与反相发射信号组合，以便基本上减少来自传输线和传输线终端的反射信号。
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公开(公告)号：US5907614A
公开(公告)日：1999-05-25
申请号：US833860
申请日：1997-04-10
摘要： An improved network interface unit having a substantially smaller width than many prior art network interface units. The network interface unit comprises a single, planar circuit board assembly interconnected between incoming and outgoing telephone lines and incoming and outgoing customer premises lines. Two relays and a controller are mounted on the board. The controller monitors the transmission of data along the lines and, by activating the relays, provides communication and maintenance functions, such as loopback. The network interface unit utilizes a controller made up of (1) a processor-based software control system and (2) an integrally cooperating application specific integrated circuit. The controller may, for example, provide and monitor framing, detect and monitor signals, and convert bipolar data to unipolar data.
摘要翻译： 一种改进的网络接口单元，具有比许多现有技术的网络接口单元小得多的宽度。 网络接口单元包括在输入和输出电话线路之间互连的单个平面电路板组件，以及进入和离开的客户驻地线路。 两个继电器和一个控制器安装在电路板上。 控制器监视数据沿线的传输，并通过激活继电器，提供通信和维护功能，如环回。 网络接口单元使用由（1）基于处理器的软件控制系统和（2）整合协作的专用集成电路构成的控制器。 控制器可以例如提供和监视成帧，检测和监视信号，并将双极数据转换为单极数据。
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公开(公告)号：US5862200A
公开(公告)日：1999-01-19
申请号：US680833
申请日：1996-07-16
申请人： Laurence L. Sheets
发明人： Laurence L. Sheets
CPC分类号： H04M3/30 , H04B17/40 , H04B5/00 , H04L1/24 , H04B5/0012 , H04B5/0087
摘要： A ground fault detector for TI span equipment for transmitting signals from a central office to a network interface unit and receiving signals at the central office from the network interface unit. The TI span equipment includes a first pair of cables for transmitting data payload from the central office to the network interface unit and a second pair of cables for receiving data payload at the central office from the network interface unit. A line repeater is located along the TI span equipment between the central office and the network interface unit. The line repeater includes a transformer with core and a first, second, third and fourth coil. The coils are coupled to the transmit and receive span, and the transformer core saturates when the current differential between the coils exceeds a predetermined level. When the core is saturated, signals present on the first coil are not imposed on the second coil. A detector device senses the absence of a signal on the second coil determines that there is a ground fault.
摘要翻译： 用于TI跨度设备的接地故障检测器，用于从中心局向网络接口单元传输信号，并从网络接口单元在中心局接收信号。 TI跨度设备包括用于从中心局向网络接口单元传输数据有效载荷的第一对电缆和用于从网络接口单元在中心局接收数据有效载荷的第二对电缆。 线路中继器位于中心局和网络接口单元之间的TI跨度设备。 线路中继器包括具有磁芯的变压器和第一，第二，第三和第四线圈。 线圈耦合到发射和接收跨度，并且当线圈之间的电流差超过预定水平时，变压器铁芯饱和。 当磁芯饱和时，第一线圈上存在的信号不会施加在第二线圈上。 检测器装置检测到第二线圈上没有信号确定存在接地故障。
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6.发明授权
公开(公告)号：US5437023A
公开(公告)日：1995-07-25
申请号：US193946
申请日：1994-02-09
申请人： Laurence L. Sheets , Guy C. Cerulli
发明人： Laurence L. Sheets , Guy C. Cerulli
CPC分类号： H04B17/406
摘要： An improved address acknowledgement system for line elements such as repeaters in a digital telecommunication network. The system is preferably controlled by logic circuitry, in conjunction with a microprocessor. A remote facility such as a test unit transmits to the repeater a loopup command, requesting the repeater to enter loopback mode. The repeater acknowledges receipt of this command by inverting its address and transmitting the inverted address back to the test set. The test set either scans its incoming data stream for the inverted address of the line element or inverts the incoming data stream and scans the inverted incoming data stream for the non-inverted address of the line element. In either case, another line element bearing the same non-inverted address as the line element targeted to enter loopback will not interpret the inverted address as a loopup command. Accordingly, other line elements will not thereby be unintentionally caused to enter loopback mode.
摘要翻译： 一种用于诸如数字电信网络中的中继器的线路元件的改进的地址确认系统。 该系统优选地由微处理器结合的逻辑电路来控制。 诸如测试单元的远程设备向中继器发送一个循环命令，请求中继器进入环回模式。 中继器通过反转其地址并将反向地址发送回测试仪确认接收到该命令。 测试仪或者扫描其输入数据流以获得线路元件的反向地址，或者反转输入数据流，并扫描反向输入数据流以获得线路元件的非反相地址。 在任一情况下，具有与作为进入环回的线元素相同的非反转地址的另一个线路元件将不会将反转地址解释为循环命令。 因此，其他线路元件将不会被无意地导致进入环回模式。
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公开(公告)号：US6151691A
公开(公告)日：2000-11-21
申请号：US229532
申请日：1999-01-13
CPC分类号： H04L1/242
摘要： An improved system for allowing a digital transmission line element, such as a regenerative repeater or a network interface unit, to communicate with a remote location. The line element is interconnected to a digital transmission line, which receives an incoming data stream. The data stream follows predetermined coding rules. The line element includes a detector and an error generator. The detector senses when a status inquiry is made and responsively enables the error generator to then selectively introduce an error message into an outgoing data stream along the digital transmission line. The error message may then be detected at a remote location to a provide information regarding the line element, such as its location or operating mode.
摘要翻译： 用于允许诸如再生中继器或网络接口单元的数字传输线路元件与远程位置通信的改进的系统。 线路元件互连到数字传输线路，其接收输入数据流。 数据流遵循预定的编码规则。 线路元件包括检测器和误差发生器。 检测器检测何时进行状态查询，并且响应地使误差发生器能够随后沿着数字传输线选择性地将错误消息引入到输出数据流中。 然后可以在远程位置检测到错误消息以提供关于线路元件的信息，诸如其位置或操作模式。
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公开(公告)号：US5555274A
公开(公告)日：1996-09-10
申请号：US844129
申请日：1992-03-02
申请人： Laurence L. Sheets
发明人： Laurence L. Sheets
摘要： An out of band data link for performance monitoring information using existing telecommunications transmission facilities. The Bell telephone network includes a variety of central offices and network interface units that should communicate with each other regarding performance. The data link allows the network interface unit to advise the telephone company's central office of difficulties. A first modem is interconnected between a pair of simplex leads in the central office telephone company's central office repeater transformers, and a second modem is interconnected between a pair of simplex leads in the network interface unit's transformers. The voltage between each pair of leads is used to effect communication between the telephone company's central office and the network interface unit. Accordingly existing cables can continued to be dedicated to the transmission of payload, rather than requiring the capacity of the cables to be reduced so that the network interface unit can transmit performance data to the central office.
摘要翻译： 带外数据链接，用于使用现有电信传输设施的性能监控信息。 贝尔电话网络包括各种中心局和网络接口单元，以便在性能上相互沟通。 数据链路允许网络接口单元向电话公司的中心局通知困难。 第一调制解调器在中心局电话公司的中心局中继变压器中的一对单向引线之间互连，并且第二调制解调器在网络接口单元的变压器中的一对单工引线之间互连。 每对引线之间的电压用于实现电话公司的中心局和网络接口单元之间的通信。 因此，现有的电缆可以继续专用于有效载荷的传输，而不是要求减小电缆的容量，使得网络接口单元可以将性能数据传送到中心局。
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公开(公告)号：US5521977A
公开(公告)日：1996-05-28
申请号：US145771
申请日：1993-10-29
CPC分类号： H04Q1/028
摘要： An improved network interface unit having a substantially smaller width than many prior art network interface units. The network interface unit comprises a single, planar circuit board assembly interconnected between incoming and outgoing telephone lines and incoming and outgoing customer premises lines. Two relays and a controller are mounted on the board. The controller monitors the transmission of data along the lines and, by activating the relays, provides communication and maintenance functions, such as loopback. The network interface unit utilizes a controller made up of (1) a processor-based software control system and (2) an integrally cooperating application specific integrated circuit. The controller may, for example, provide and monitor framing, detect and monitor signals, and convert bipolar data to unipolar data.
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公开(公告)号：US5509065A
公开(公告)日：1996-04-16
申请号：US151514
申请日：1993-11-12
CPC分类号： H04Q11/04
摘要： A telecommunication system is described that has an interface and multiple lines, such as T-1 lines. The multiple lines include at least one service line and at least one spare line. The interface comprises a bus across the service line and spare line and a common controller. The bus includes switches for interconnecting and disconnecting the bus from one or more of the multiple lines. The common controller accomplishes multiple functions: (a) responding to a transfer signal by interconnecting the spare line to the bus and disconnecting the service line from the bus, (b) recognizing a restoration of service signal on the service line upon which service was disconnected, and (c) sending commands to the switches for reconnecting the service line to the bus and disconnecting the spare line from the bus. Further, in one embodiment, the common controller also recognizes a restoration of service signal on the spare line. The transfer signals and restoration of service signals are provided to the telecommunications system by an outside source, such as a telephone company central office.
摘要翻译： 描述了具有诸如T-1线路的接口和多条线路的电信系统。 多条线路包括至少一条服务线路和至少一条备用线路。 该接口包括通过服务线和备用线路的总线和公共控制器。 总线包括用于将总线与一条或多条多条线路互连和断开的开关。 通用控制器实现多种功能：（a）通过将备用线路与总线互连并将业务线路与总线断开来响应传输信号，（b）识别在服务线路上断开业务信号的恢复 ，以及（c）向交换机发送命令以将业务线路重新连接到总线并将备用线路与总线断开连接。 此外，在一个实施例中，公共控制器还识别备用线上的服务信号的恢复。 传输信号和服务信号的恢复由诸如电话公司中心局的外部来源提供给电信系统。
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