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1.发明授权公开(公告)号：US06885698B1
公开(公告)日：2005-04-26
申请号：US09811356
申请日：2001-03-16
申请人： Jin-Nan Liaw , Haibin Liu , James Hon , Andrew L. Norrell
发明人： Jin-Nan Liaw , Haibin Liu , James Hon , Andrew L. Norrell
CPC分类号： H04L25/4927
摘要： Method and apparatus for providing an improved quality voice band channel equalization in telecommunication systems employing v.90 transmission standard in which PCM modem signals passing through a digital-to-analog and analog-to-digital conversion processes between a central office switch and a multiple subscriber access system may be reconstructed with improved quality at the A/D converter side by variably adjusting the gain between the digital-to-analog conversion process at the central office switch and the analog-to-digital conversion process at the multiple subscriber access system, and low pass filtering the signal using a second order low pass notch filter to provide a boost of 6 dB at a frequency of 4 KHz.
摘要翻译： 在使用v.90传输标准的电信系统中提供改进的质量语音频带信道均衡的方法和装置，其中PCM调制解调器信号通过中央局交换机和多个中心局交换机之间的数模转换和模数转换处理 可以通过可变地调整中心局交换机的数模转换处理与多用户接入系统的模数转换过程之间的增益来在A / D转换器侧改进用户接入系统的改进质量 ，并使用二阶低通陷波滤波器对信号进行低通滤波，以在4KHz的频率下提供6dB的升压。
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公开(公告)号：US07529229B1
公开(公告)日：2009-05-05
申请号：US10847596
申请日：2004-05-17
申请人： Andrew L. Norrell , Dale M. Walsh , Don Bellenger
发明人： Andrew L. Norrell , Dale M. Walsh , Don Bellenger
IPC分类号： H04L12/66
CPC分类号： H04L12/5692
摘要： A local area network connected to an infrastructure access device that provides the home LAN with access to voice, data and television services. The infrastructure access device includes a gateway to voice over Internet Protocol services, an interface to a data network for data access, a router to multiplex signals from the gateways and the data network and a Digital Subscriber Line (DSL) transceiver connected to a gateway device in the customer premises. The gateway device includes a DSL transceiver to communicate over the DSL connecting it to the infrastructure access device to provide the home LAN with high performance communications services without the use of POTS. The DSL transceiver may communicate using a switched carrier modulation scheme to conserve power and reduce crosstalk.
摘要翻译： 连接到基础设施接入设备的局域网，其为家庭LAN提供对语音，数据和电视服务的访问。 基础设施接入设备包括通过因特网协议服务语音的网关，用于数据访问的数据网络的接口，用于复用来自网关和数据网络的信号的路由器以及连接到网关设备的数字用户线（DSL）收发器 在客户处所。 网关设备包括DSL收发器，用于通过DSL将DSL连接到基础设施接入设备，以便在不使用POTS的情况下为家庭LAN提供高性能通信服务。 DSL收发器可以使用交换载波调制方案进行通信，以节省功率并减少串扰。
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3.发明授权公开(公告)号：US07190716B2
公开(公告)日：2007-03-13
申请号：US10071980
申请日：2002-02-06
IPC分类号： H04B1/38
CPC分类号： H04M19/006 , H04M3/30 , H04M2203/205
摘要： A Digital Subscriber Line (DSL) network for improving the transmission of DSL signals includes a plurality of local loops for transmission of upstream and downstream DSL signals, control signals, and Direct Current (DC) power, a plurality of loop extenders with communications, control, and diagnostic functionality for amplifying the DSL signals, a loop extender communications/power supply for receiving the DC power and control signals, providing DC power to the plurality of loop extenders, and broadcasting the received control signals to the plurality of loop extenders, and a central office controller/power supply for controlling access to the plurality of local loops and controlling the plurality of loop extenders.
摘要翻译： 用于改善DSL信号传输的数字用户线路（DSL）网络包括用于传输上游和下游DSL信号，控制信号和直流（DC）功率的多个本地环路，具有通信的多个环路扩展器，控制 以及用于放大DSL信号的诊断功能，用于接收DC功率和控制信号的环路扩展器通信/电源，向多个环路扩展器提供DC电力，以及将接收到的控制信号广播到多个环路延伸器，以及 用于控制对多个本地环路的访问并控制多个环路扩展器的中心局控制器/电源。
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公开(公告)号：US07072385B1
公开(公告)日：2006-07-04
申请号：US09670475
申请日：2000-09-26
IPC分类号： H04B17/02
CPC分类号： H04L25/20 , H04L27/2601 , H04M11/062
摘要： Systems and methods are disclosed for improving DSL performance, including ADSL and VDSL performance, over a local loop between a telephone company central office and a customer premises. In particular, a DSL repeater is coupled to the local loop and amplifies downstream and upstream DSL signals to at least partially compensate for DSL signal attenuation that occurs as DSL signals pass over the local loop.Pursuant to one embodiment, the DSL repeater includes a POTS load coil to improve the POTS, or voice band, transmission over the local loop. According to this embodiment, the DSL repeater provides both improved POTS band signal transmission and DSL service.One embodiment of the load coil includes a coupled inductor having compensating capacitors coupled thereto for counter-balancing the inter-winding capacitance of the coupled inductor. In another embodiment, the load coil includes a high intra-winding capacitance for counter-balancing the inter-winding capacitance of a coupled inductor. Pursuant to yet another embodiment, the load coil comprises a pair of discrete, uncoupled inductors and a low intra-winding capacitance. Still another embodiment includes a pair of discrete, uncoupled inductors having a pair of compensating capacitors coupled thereto for counter-balancing the intra-winding capacitance of the uncoupled inductors. Reducing, eliminating, or counter-balancing the capacitance of the load coil improves the impedance of the load coil to DSL signals improved, thereby permitting sufficient gain to be developed across the load coil.
摘要翻译： 公开了用于通过电话公司中心局和客户驻地之间的本地环路来改善DSL性能（包括ADSL和VDSL性能）的系统和方法。 特别地，DSL中继器耦合到本地环路并且放大下游和上游DSL信号以至少部分地补偿当DSL信号通过本地环路时发生的DSL信号衰减。 根据一个实施例，DSL中继器包括POTS负载线圈，以改善POTS或语音频带在本地环路上的传输。 根据本实施例，DSL中继器提供改进的POTS频带信号传输和DSL服务。 负载线圈的一个实施例包括耦合电感器，其具有耦合到其上的补偿电容器，用于平衡耦合电感器的绕组间电容。 在另一个实施例中，负载线圈包括用于平衡耦合电感器的绕组间电容的高内部绕组电容。 根据另一个实施例，负载线圈包括一对离散的非耦合电感器和低内部绕组电容。 另一个实施例包括一对离散的非耦合电感器，其具有耦合到其上的一对补偿电容器，用于平衡非耦合电感器的内部绕组电容。 降低，消除或平衡负载线圈的电容可以提高负载线圈对DSL信号的阻抗，从而允许在负载线圈上产生足够的增益。
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公开(公告)号：US06874096B1
公开(公告)日：2005-03-29
申请号：US09887283
申请日：2001-06-21
CPC分类号： H04L7/042
摘要： A detector for detecting packet arrival time for packets received by a Home Phoneline Network Alliance (HPNA) receiver. The detector correlates received preamble symbols with stored preamble symbols and generates an estimation of the packet arrival time when the entire transmitted preamble has arrived at the receiver. The estimation of the packet arrival time is defined on a symbol period boundary. The detector includes a complex correlator with a simplified structure based on characteristic of the received HPNA signal.
摘要翻译： 用于检测由家庭电话网络联盟（HPNA）接收机接收到的分组的分组到达时间的检测器。 检测器将接收到的前导码符号与存储的前导码符号相关联，并且当整个发送的前导码到达接收机时产生对分组到达时间的估计。 分组到达时间的估计在符号周期边界上定义。 检测器包括基于所接收的HPNA信号的特性的具有简化结构的复相关器。
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6.发明授权Method and apparatus for adaptively equalizing a signal received from a remote transmitter 失效用于对从远程发射机接收的信号进行自适应均衡的方法和装置
公开(公告)号：US06034993A
公开(公告)日：2000-03-07
申请号：US970836
申请日：1997-11-14
申请人： Andrew L. Norrell , Dale M. Walsh
发明人： Andrew L. Norrell , Dale M. Walsh
CPC分类号： H03H21/0012
摘要： An apparatus and method for adaptively equalizing a signal received from a remote transmitter. The equalizer includes a filter having an output and a decision circuit coupled to the filter output. In addition, the equalizer has a reference coupled to the decision circuit. The reference includes a model of a non-linear characteristic of a remote transmitter. The method relates to adaptively equalizing a signal received from a remote transmitter. The method includes the step of receiving a signal corresponding to a predetermined reference level from the remote transmitter. Next, the received signal level is filtered to remove linear error terms. The next step of the method includes measuring a non-linear error term associated with the received and filtered signal. The measured non-linear error term may then be stored and used to make improved decisions on data signals transmitted from the remote transmitter.
摘要翻译： 一种用于对从远程发射机接收的信号进行自适应均衡的装置和方法。 均衡器包括具有耦合到滤波器输出的输出和判定电路的滤波器。 另外，均衡器具有耦合到判定电路的参考。 该参考文献包括远程发射机的非线性特征的模型。 该方法涉及对从远程发射机接收的信号进行自适应均衡。 该方法包括从远程发送器接收对应于预定参考电平的信号的步骤。 接下来，对接收到的信号电平进行滤波以消除线性误差项。 该方法的下一步包括测量与接收和滤波信号相关联的非线性误差项。 测量的非线性误差项可以被存储并用于对从远程发射机发送的数据信号做出改进的决定。
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公开(公告)号：US07061857B2
公开(公告)日：2006-06-13
申请号：US10077308
申请日：2002-02-15
IPC分类号： H04J1/16
CPC分类号： H04M3/303 , H04B3/46 , H04M3/2209 , H04Q11/00 , H04Q2213/13039 , H04Q2213/13094 , H04Q2213/1316 , H04Q2213/13162 , H04Q2213/13191 , H04Q2213/13298
摘要： A system and method are disclosed to implement fault detection in DSL loop extenders. The system of the invention includes a plurality of loop extenders coupled to a local loop, a loop extender (LE) test box coupled to the local loop, and fault detection circuitry coupled to each of the plurality of loop extenders. The LE test box sends a tone pair associated with a loop extender over the local loop, the loop extender associated with the tone pair processes the tone pair to generate a response tone and sends the response tone to the LE test box via the local loop. Then, the LE test box determines functionality of the loop extender based upon the received response tone.
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公开(公告)号：US06947529B2
公开(公告)日：2005-09-20
申请号：US09819158
申请日：2001-03-27
CPC分类号： H03H7/427 , H01F17/08 , H01F19/06 , H03H7/1766 , H04M11/062
摘要： A load coil is disposed along a local loop for conditioning POTS signals while permitting passage of higher frequency DSL signals with low attenuation. In one embodiment, the load coil includes a coupled inductor having multiple capacitive elements coupled thereto, the capacitive elements facilitating passage of the DSL signals across the load coil.
摘要翻译： 负载线圈沿着本地环路设置，用于调节POTS信号，同时允许较低频率的DSL信号通过低衰减。 在一个实施例中，负载线圈包括具有耦合到其上的多个电容元件的耦合电感器，该电容元件有助于DSL信号跨越负载线圈的通过。
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公开(公告)号：US06853637B1
公开(公告)日：2005-02-08
申请号：US09322887
申请日：1999-05-29
申请人： Andrew L. Norrell , Dale M. Walsh , Don Bellenger
发明人： Andrew L. Norrell , Dale M. Walsh , Don Bellenger
CPC分类号： H04L12/5692
摘要： A local area network connected to an infrastructure access device that provides the home LAN with access to voice, data and television services. The infrastructure access device includes a gateway to voice over Internet Protocol services, an interface to a data network for data access, a router to multiplex signals from the gateways and the data network and a Digital Subscriber Line (DSL) transceiver connected to a gateway device in the customer premises. The gateway device includes a DSL transceiver to communicate over the DSL connecting it to the infrastructure access device to provide the home LAN with high performance communications services without the use of POTS. The DSL transceiver may communicate using a switched carrier modulation scheme to conserve power and reduce crosstalk.
摘要翻译： 连接到基础设施接入设备的局域网，其为家庭LAN提供对语音，数据和电视服务的访问。 基础设施接入设备包括通过因特网协议服务语音的网关，用于数据访问的数据网络的接口，用于复用来自网关和数据网络的信号的路由器以及连接到网关设备的数字用户线（DSL）收发器 在客户处所。 网关设备包括DSL收发器，用于通过DSL将DSL连接到基础设施接入设备，以便在不使用POTS的情况下为家庭LAN提供高性能通信服务。 DSL收发器可以使用交换载波调制方案进行通信，以节省功率并减少串扰。
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公开(公告)号：US06255967B1
公开(公告)日：2001-07-03
申请号：US09457433
申请日：1999-12-07
IPC分类号： H03M700
CPC分类号： H04L25/4927
摘要： An improved DC compensation method for use in conjunction with telephony signalling. The method includes defining a frame that includes at least two n-bit codewords. An unsigned codeword is then identified within the frame by applying a rule to the codewords in the defined frame. Next, a sign bit is appended to the unsigned codeword, thereby producing a DC compensating codeword. The sign bit is selected based upon a weighting function of the linear values associated with previously transmitted codewords. The remaining unsigned codewords in the frame are assigned sign bits from user data.
摘要翻译： 一种与电话信令结合使用的改进的直流补偿方法。 该方法包括定义包括至少两个n位码字的帧。 然后通过将规则应用于定义的帧中的码字来识别帧内的无符号码字。 接下来，将符号位附加到无符号码字，从而产生DC补偿码字。 基于与先前发送的码字相关联的线性值的加权函数来选择符号位。 帧中剩余的未签名码字从用户数据中分配符号位。
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