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公开(公告)号：US06353609B1
公开(公告)日：2002-03-05
申请号：US09100392
申请日：1998-06-19
IPC分类号： H04L1264
CPC分类号： H04L12/6418 , H04L2012/6413 , H04L2012/6454 , H04L2012/6459 , H04L2012/6464 , H04L2012/6481
摘要： A digital packet access network for transporting voice and data signals in the local loop between a central office location and a plurality of remote local users. The network architecture may also include: (1) a dual-pipelined structure for separately transporting the voice and data signals; (2) a mechanism for prioritizing the transport of the voice signals, or (3) a method of synchronizing the timing of the voice signals to a telephone switch.
摘要翻译： 数字分组接入网络，用于在中心局位置和多个远程本地用户之间的本地环路中传送话音和数据信号。 网络架构还可以包括：（1）用于分别传输语音和数据信号的双流水线结构; （2）用于对语音信号的传输进行优先排序的机制，或者（3）使语音信号的定时与电话交换机同步的方法。
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公开(公告)号：US06362908B1
公开(公告)日：2002-03-26
申请号：US09203409
申请日：1998-12-02
IPC分类号： H04B1000
CPC分类号： H04B10/272
摘要： A multi-service, adaptable optical network unit (ONU) is disclosed for use in a fiber-to-the-curb (FTTC) digital loop carrier system, including a multi-service common card and a plurality of multi-media service cards that are connected to the common card using a card-link interface. The card-link interface is preferably a high-speed LVDS serial-bus connection that is organized in a star configuration such that each service card is connected to the multi-service common card using a separate point-to-point card-link. By eliminating the traditional backplane structure found in present ONU designs, the present invention provides a scalable, adaptable, future-proof FTTC system that can transport present-day multi-media services as well as yet-to-be-defined future high-bandwidth applications.
摘要翻译： 公开了一种用于光纤到路边（FTTC）数字环路载波系统中的多业务适应性光网络单元（ONU），包括多业务公用卡和多个多媒体业务卡， 使用卡连接接口连接到公共卡。 卡链路接口优选地是以星形配置组织的高速LVDS串行总线连接，使得每个服务卡使用单独的点对点卡链路连接到多业务公用卡。 通过消除现有ONU设计中发现的传统背板结构，本发明提供了一种可扩展的，适应性强，面向未来的FTTC系统，可以传输当今的多媒体业务以及尚未定义的未来高带宽 应用程序。
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公开(公告)号：US6151226A
公开(公告)日：2000-11-21
申请号：US305637
申请日：1999-05-05
CPC分类号： H02M3/33584
摘要： A four quadrant power conversion topology comprising a multi-winding inductor, four switches, and four diodes is disclosed. The four quadrant power conversion is utilized in a number of power conversion devices such as a power efficient non-linear power amplifier that comprises the 4Q power conversion topology of the present invention and a switch-control-signal generator coupled to the 4Q power conversion topology. The switch-control-signal generator generates switch activation signals for driving the four switches of the 4Q power conversion topology. In one embodiment the switch-control-signal generator comprises a polarity detector for detecting the polarity of an input signal, a full wave rectifier for rectifying the input signal, a pulse width modulator which produces a pulse width modulated signal representative of the full wave rectified input signal, and steering logic that generates switch activation signals for driving the power conversion topology to produce an output representative of the input signal. The amplifier may optionally include switch drivers to condition the switch activation signals to drive the switches in the 4Q power conversion topology.
摘要翻译： 公开了一种包括多绕组电感器，四个开关和四个二极管的四象限功率转换拓扑。 四象限功率转换被用于许多功率转换装置，例如包括本发明的4Q功率转换拓扑的功率有效的非线性功率放大器，以及耦合到4Q功率转换拓扑的开关控制信号发生器 。 开关控制信号发生器产生用于驱动4Q功率转换拓扑的四个开关的开关激活信号。 在一个实施例中，开关控制信号发生器包括用于检测输入信号的极性的极性检测器，用于整流输入信号的全波整流器，产生表示全波整流的脉宽调制信号的脉宽调制器 输入信号和转向逻辑，其产生用于驱动功率转换拓扑以产生表示输入信号的输出的开关激活信号。 放大器可以可选地包括开关驱动器以调节开关激活信号以驱动4Q功率转换拓扑中的开关。
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公开(公告)号：US06366464B1
公开(公告)日：2002-04-02
申请号：US09375312
申请日：1999-08-16
IPC分类号： H05K500
CPC分类号： H05K7/1424 , H04Q1/02 , H04Q1/062 , H04Q1/116 , H04Q1/14 , H04Q2201/12
摘要： An ONU includes circuit cards, a card cage, and electrical connector hardware. The card cage releaseably engages and supports the circuit cards in installed positions in the card cage. At least one pair of the circuit cards have serial interconnections with each other. The electrical connector hardware defines all of those serial interconnections and is free of a backplane.
摘要翻译： ONU包括电路卡，卡笼和电连接器硬件。 卡笼可释放地接合并支撑在卡笼中的安装位置的电路卡。 至少一对电路卡具有彼此的串联互连。 电连接器硬件定义了所有这些串行互连，并且没有背板。
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公开(公告)号：US06781981B1
公开(公告)日：2004-08-24
申请号：US09150817
申请日：1998-09-11
IPC分类号： H04L1266
CPC分类号： H04Q11/0478 , H04L2012/5672 , H04M11/062 , H04Q11/04 , H04Q2213/13003 , H04Q2213/1301 , H04Q2213/13034 , H04Q2213/1308 , H04Q2213/13093 , H04Q2213/13174 , H04Q2213/1319 , H04Q2213/13199 , H04Q2213/13292 , H04Q2213/13295 , H04Q2213/13299 , H04Q2213/1332 , H04Q2213/13322 , H04Q2213/13381 , H04Q2213/13389
摘要： An improved digital loop carrier system for transporting voice and DSL data signals in the local loop. The digital loop carrier system includes a remote digital terminal having an interface terminal, a common equipment shelf for interfacing digital voice signals to the central office switch, and a plurality of copper shelves coupled to the common shelf for holding voice line-cards that convert digital voice signals into analog voice signals (and vice versa) for transport to customer premises. At least one copper shelf is configured to include an auxiliary packet data bus for connecting combination voice/DSL line-cards and at least one data uplink card. The data uplink card is coupled to the interface terminal to enable DSL data transport without impacting digital voice capabilities through the common equipment. Also disclosed is an optional Ethernet switch in the remote digital terminal for concentrating multiple DSL signals prior to transport back to the central office.
摘要翻译： 一种改进的数字环路载波系统，用于在本地环路中传输语音和DSL数据信号。 数字环路载波系统包括具有接口终端的远程数字终端，用于将数字语音信号与中心局交换机对接的公共设备机架，以及耦合到公共机架的多个铜架，用于保持转换数字的语音线路卡 语音信号转换为模拟语音信号（反之亦然），用于传输到客户驻地。 至少一个铜架被配置为包括用于连接组合语音/ DSL线路卡和至少一个数据上行链路卡的辅助分组数据总线。 数据上行卡被耦合到接口终端以实现DSL数据传输，而不会通过普通设备影响数字语音能力。 还公开了远程数字终端中的可选的以太网交换机，用于在传输回中心局之前集中多个DSL信号。
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