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1. 发明授权

US07643413B2 System and method for providing quality of service in asynchronous transfer mode cell transmission 有权
标题翻译：在异步传输模式小区传输中提供服务质量的系统和方法
公开(公告)号：US07643413B2
公开(公告)日：2010-01-05
申请号：US10746235
申请日：2003-12-29
申请人： David Milway , William Stoye
发明人： David Milway , William Stoye
IPC分类号： H04L1/00
CPC分类号： H04L47/2416 , H04L47/10 , H04L47/2408 , H04L47/2433 , H04L2012/5679 , H04Q11/0478
摘要： A method and apparatus for scheduling the transmission of cells onto an network, or other packet switching network, is disclosed. The central feature of the scheduling mechanism is a quality of service engine (QoS Engine) which accelerates the processing of packets in a packet switching networks, such as an ATM network, by assisting the accurate pacing of many ATM virtual circuits. The QoS Engine allows the concurrent support of a wide variety of port speeds, traffic classes using different priorities and traffic parameters. quality of service engine (QoS Engine) works in conjunction with a network processor (NP) to allow it to maintain software flexibility, and for it to achieve accurate pacing.
摘要翻译：公开了一种用于调度小区到网络或其他分组交换网络的传输的方法和装置。调度机制的核心特征是通过协助许多ATM虚拟电路的准确起搏来加速分组交换网络（例如ATM网络）中分组的处理的服务质量引擎（QoS Engine）。 QoS引擎允许并发支持各种端口速度，使用不同优先级的流量类和流量参数。服务质量引擎（QoS Engine）与网络处理器（NP）一起工作，使其能够保持软件灵活性，并实现精确的起搏。

2. 发明授权

US07386040B1 System and method for optimizing digital subscriber line performance between transceivers from multiple manufacturers 有权
标题翻译：用于优化来自多个制造商的收发器之间的数字用户线路性能的系统和方法
公开(公告)号：US07386040B1
公开(公告)日：2008-06-10
申请号：US11117252
申请日：2005-04-28
申请人： Lujing Cai , Ehud Langberg , Shareq Rahman , William H. Scholtz
发明人： Lujing Cai , Ehud Langberg , Shareq Rahman , William H. Scholtz
IPC分类号： H04L5/16
CPC分类号： H04L5/1438 , H04L27/2608
摘要： An improved ADSL modem is presented. The ADSL modem in cooperation with a remote ADSL modem will exchange manufacturer identification information during initial DSL system training to establish a DSL communication link. The improved ADSL modem may comprise a memory device containing system parameters and operational algorithms previously determined to maximize DSL link performance between ADSL modems manufactured by different vendors. The improved ADSL modem is well suited for central office applications as it provides a solution for optimizing system performance that is transparent to remotely located ADSL modems. An ADSL modem in accordance with the present invention may comprise a digital signal processor and a memory device configured to store appropriate system parameters and operational algorithms that provide an optimized DSL communication link once applied during system initialization. The present invention also provides a method for optimizing DSL system performance. The method can be described by the following steps: supplying a default manufacturer identification for a remote modem at a master modem; applying appropriate system parameters and algorithms in response to the default manufacturer identification; initializing DSL system start-up training; receiving the actual manufacturer identification for the remote modem; determining if the current system parameters and algorithms are suitable for a DSL link with the actual manufacturer; adjusting training parameters and algorithms; restarting training when required; and establishing the DSL link.
摘要翻译：提出了一种改进的ADSL调制解调器。与远程ADSL调制解调器协作的ADSL调制解调器将在初始DSL系统训练期间交换制造商识别信息以建立DSL通信链路。改进的ADSL调制解调器可以包括存储设备，该存储器设备包含先前确定的用于最大化由不同供应商制造的ADSL调制解调器之间的DSL链路性能的系统参数和操作算法。改进的ADSL调制解调器非常适合中央办公室应用，因为它提供了一种解决方案，以优化对远程定位的ADSL调制解调器透明的系统性能。根据本发明的ADSL调制解调器可以包括数字信号处理器和被配置为存储在系统初始化期间一旦应用的提供优化的DSL通信链路的适当系统参数和操作算法的存储器设备。本发明还提供了一种优化DSL系统性能的方法。该方法可以通过以下步骤来描述：在主调制解调器处提供远程调制解调器的默认制造商标识; 根据默认的制造商标识应用适当的系统参数和算法; 初始化DSL系统启动培训; 接收远程调制解调器的实际制造商标识; 确定当前的系统参数和算法是否适合于与实际制造商的DSL链路; 调整训练参数和算法; 需要时重新开始训练; 并建立DSL链路。

3. 发明授权

US07272153B2 System and method for distributed processing of packet data containing audio information 有权
标题翻译：用于分组处理包含音频信息的数据包数据的系统和方法
公开(公告)号：US07272153B2
公开(公告)日：2007-09-18
申请号：US10138700
申请日：2002-05-06
申请人： Jonathan Cline
发明人： Jonathan Cline
IPC分类号： H04L15/56
CPC分类号： H04Q11/0478 , H04L2012/5671
摘要： The present invention pertains to a system and corresponding method for distributed processing of packet data containing audio information. The system includes a host processing module for exchanging packet data containing audio information with a data packet network, wherein the host processing module includes host logic for performing non-real-time processing of the packet data. The system also includes a slave processing module coupled to the host processing module for exchanging packet data with the host processing module, wherein the slave processing module includes slave logic for performing real-time processing of the packet data, and for interfacing with a media device.
摘要翻译：本发明涉及用于分组处理包含音频信息的分组数据的系统和相应方法。该系统包括用于与数据分组网络交换包含音频信息的分组数据的主机处理模块，其中主机处理模块包括用于执行分组数据的非实时处理的主机逻辑。该系统还包括耦合到主处理模块的从处理模块，用于与主处理模块交换分组数据，其中从处理模块包括用于执行分组数据的实时处理的从属逻辑，以及用于与媒体设备。

4. 发明授权

US07558316B2 System and method for implementing a delta-sigma modulator integrity supervisor 有权
公开(公告)号：US07558316B2
公开(公告)日：2009-07-07
申请号：US10786670
申请日：2004-02-25
申请人： Christian Eichrodt , Frode Larsen , Arnold Muralt
发明人： Christian Eichrodt , Frode Larsen , Arnold Muralt
IPC分类号： H04B1/38 , H04L5/16
CPC分类号： H04L25/0266 , H04L7/0008 , H04L7/0079 , H04L27/0002
摘要： A system and a method for constructing a signal integrity supervisor capable of both detecting and triggering an appropriate response when transmit path signals indicate a potential damaging transmitter operating mode. The system and method of the present invention takes advantage of the inherent property of a Delta-Sigma Modulator (DSM) which makes the probability of encountering a long string of consecutive ones or zeroes during nominal operation very small. The signal integrity supervisor ensures safe transmitter operation by monitoring the data and the clock inputs to a digital to analog converter. The system may comprise a data signal supervisor and a clock signal supervisor. The data supervisor may comprise a comparator and a counter and may be configured to power down a line driver upon detecting a data stream having a continuous voltage level. The clock detector may comprise a pair of monostable circuits, an inverter, and a NAND gate and may be configured to reset the transmitter if a “missing” clock signal state is detected. The present invention can also be viewed as providing a method for preventing a transmission unit from forwarding signals that may result in a DC flow condition. In its broadest terms, the method can be described as: monitoring a data signal; generating a first output signal in response to a data signal having an anomalous condition; monitoring a clock signal; and generating a second output signal in response to clock signal having an anomalous condition.

5. 发明授权

US07289554B2 Method and apparatus for channel equalization and cyclostationary interference rejection for ADSL-DMT modems 有权
标题翻译：用于ADSL-DMT调制解调器的信道均衡和循环平稳干扰抑制的方法和装置
公开(公告)号：US07289554B2
公开(公告)日：2007-10-30
申请号：US10618678
申请日：2003-07-15
申请人： Laurent Francis Alloin
发明人： Laurent Francis Alloin
IPC分类号： H04B1/38
CPC分类号： H04B3/141 , H04B3/487 , H04M3/34
摘要： A method and apparatus for efficient filter structure for an enhanced operation of an ADSL-DMT modem on a subscriber loop with an environment consisting of ISDN interference. The method performs equalization of the channel by impulse response shortening and at the same time rejecting interference signals exhibiting cyclostationary properties. The method and apparatus for reducing the crosstalk involves a frequency-shifted versions of the received signal being filtered through frequency-shifted adaptive filters in the appropriate branches, and providing a joint time domain equalizer/crosstalk canceller to perform equalization of the channel and crosstalk cancellation in one instance and a separate crosstalk canceller to cancel crosstalk plus a time domain equalizer to equalize the channel. Downsampling the signal outputs of both the combined crosstalk equalizer and the frequency-shifted adaptive filters to reduce sampling rate; and subtracting the outputs of the combined crosstalk equalizer and the frequency-shifted adaptive filters to remove the cyclostationary interferer.
摘要翻译：一种用于在具有由ISDN干扰组成的环境的用户环路上增强ADSL-DMT调制解调器的操作的有效滤波器结构的方法和装置。该方法通过脉冲响应缩短执行信道的均衡，同时拒绝具有循环平稳特性的干扰信号。用于减少串扰的方法和装置涉及通过适当分支中的频移自适应滤波器滤波的接收信号的频移版本，并且提供联合时域均衡器/串扰消除器以执行信道的均衡和串扰消除在一个实例中和单独的串扰消除器来消除串扰加上时域均衡器以均衡信道。对组合串扰均衡器和频移自适应滤波器的信号输出进行下采样，以降低采样率; 并减去组合串扰均衡器和频移自适应滤波器的输出以去除周期平稳干扰源。

6. 发明授权

US07457368B2 Multilevel channel coding in ADSL 有权
标题翻译： ADSL中的多级信道编码
公开(公告)号：US07457368B2
公开(公告)日：2008-11-25
申请号：US10860286
申请日：2004-06-04
申请人： Patrick Duvaut , Ehud Langberg , Julien Pons , William Scholtz
发明人： Patrick Duvaut , Ehud Langberg , Julien Pons , William Scholtz
IPC分类号： H04L5/12
CPC分类号： H04L1/006 , H03M13/255 , H03M13/256 , H03M13/635 , H04L1/0041 , H04L1/0066 , H04L1/007
摘要： Disclosed herein are various techniques for multilevel channel coding. For a given binary word comprising a plurality of bits, the least-significant bit may be encoded by a boosted coding technique, such as turbo channel coding or low density parity check (LDPC) channel coding. A subset of the remaining bits of the binary word may be encoded using trellis coded modulation (TCM) coding. The results of the boosted channel coding and the TCM coding may be mapped to one or more symbols. The one or more symbols then may be transmitted to a receiver using transmission techniques well known to those skilled in the art. The present invention finds particular benefit in digital subscriber line (DSL)-based systems in accord with the ITU G.922.1 Recommendation and similar standards.
摘要翻译：这里公开了用于多电平信道编码的各种技术。对于包括多个位的给定二进制字，最低有效位可以通过诸如turbo信道编码或低密度奇偶校验（LDPC）信道编码的增强编码技术来编码。可以使用网格编码调制（TCM）编码对二进制字的剩余位的子集进行编码。增强的信道编码和TCM编码的结果可以映射到一个或多个符号。然后可以使用本领域技术人员公知的传输技术将一个或多个符号发送到接收机。本发明在符合ITU G.922.1建议书和类似标准的基于数字用户线路（DSL）的系统中具有特别的益处。

7. 发明授权

US07457353B2 Method and system for mitigating Fourier transform side lobes 有权
标题翻译：用于减轻傅立叶变换旁瓣的方法和系统
公开(公告)号：US07457353B2
公开(公告)日：2008-11-25
申请号：US10849569
申请日：2004-05-20
申请人： Patrick Duvaut , Ehud Langberg , Albert Rapaport , William Sholtz , Faina Shmulyian
发明人： Patrick Duvaut , Ehud Langberg , Albert Rapaport , William Sholtz , Faina Shmulyian
IPC分类号： H04B1/38 , H04B3/20 , H04M9/08
CPC分类号： H04L27/2602 , H04L27/2614
摘要： The present invention is directed to implementing theoretical foundations of frequency domain methods aiming to locally decrease the impact of aggregate side lobes of a few discrete frequency tones, in the vicinity of other “victim” frequencies. The family of frequency methods referred to makes use of one or more “canceller tones.” The “canceller tones” loads are optimized to minimize the aggregate power in the neighborhood of the victim frequencies. An exemplary method for decreasing an impact of aggregate side lobes of one or more discrete frequency tones in the vicinity of one or more victim tones comprises the steps of calculating an aggregate power of one or more side lobes of one or more disturber tones within a victim bandwidth; determining at least one optimal load to minimize the aggregate power wherein the at least one optimal load comprises a linear combination of the one or more disturber tones; and applying the at least one optimal load to one or more canceller tones for minimizing the impact of the one or more side lobes of the one or more disturber tones.
摘要翻译：本发明旨在实现频域方法的理论基础，旨在局部地减小在其他“受害者”频率附近的几个离散频率的聚集旁瓣的影响。所提及的频率方法族使用一个或多个“消除音”。优化“消除音”负载以最小化受害者频率附近的总功率。减少一个或多个受害音调附近的一个或多个离散频率音调的聚集旁瓣的影响的示例性方法包括以下步骤：计算受害者中一个或多个干扰音的一个或多个旁波的总功率带宽; 确定至少一个最佳负载以最小化所述总功率，其中所述至少一个最佳负载包括所述一个或多个干扰调制音的线性组合; 以及将所述至少一个最佳负载应用于一个或多个消除器音调，以最小化一个或多个干扰音调的一个或多个旁瓣的影响。

8. 发明授权

US07372900B2 Method and system for selecting an optimal asymmetric digital subscriber line mode 有权
标题翻译：用于选择最佳非对称数字用户线模式的方法和系统
公开(公告)号：US07372900B2
公开(公告)日：2008-05-13
申请号：US10721259
申请日：2003-11-26
申请人： Albert Rapaport
发明人： Albert Rapaport
IPC分类号： H04B1/38
CPC分类号： H04L27/2608
摘要： A method and system of the present inventions are directed to selecting an optimal mode for ADSL operation based near/far end modem capability, loop length and capacity in the upper bands of modes of operation. A method for switching among a plurality of modes for ADSL modem operation may include the steps of determining a far end modem's capability for supporting one or more of a base mode, a first mode and a second mode; determining a loop length between a near end modem and the far end modem; determining a capacity in an upper band of the first mode and the second mode; and selecting an appropriate mode based on a combination of the far end modem's capability, the loop length and the capacity in the upper band.
摘要翻译：本发明的方法和系统涉及基于近/远端调制解调器能力，操作模式的较高频带中的环路长度和容量来选择用于ADSL操作的最佳模式。用于在ADSL调制解调器操作的多种模式之间切换的方法可以包括以下步骤：确定远端调制解调器支持基本模式，第一模式和第二模式中的一个或多个的能力; 确定近端调制解调器和远端调制解调器之间的环路长度; 确定第一模式和第二模式的较高频带中的容量; 并且基于远端调制解调器的能力，环路长度和上级频带的容量的组合来选择适当的模式。

9. 发明授权

US07254134B2 Systems for transferring various data types across an ATM network 有权
标题翻译：通过ATM网络传输各种数据类型的系统
公开(公告)号：US07254134B2
公开(公告)日：2007-08-07
申请号：US11534760
申请日：2006-09-25
申请人： Jung-Lung Lin , Virender Yadav , Pramrod Kaluskar , Vidyadhar Vadapalli , Leon Paley , Ravi Lambi
发明人： Jung-Lung Lin , Virender Yadav , Pramrod Kaluskar , Vidyadhar Vadapalli , Leon Paley , Ravi Lambi
IPC分类号： H04L12/28
CPC分类号： H04L12/5601 , H04L49/608 , H04L2012/5652 , H04L2012/5658 , H04L2012/5659 , H04L2012/5665 , H04L2012/5671
摘要： Methods, systems, processing units, and signals for transferring data of various data types across a common data path interface are disclosed. A representative method for transferring data between a master processing unit and at least a first slave processing unit via a common data path interface, the master processing unit and the at least first slave processing unit are configured to process a plurality of non-Asynchronous Transfer Mode (ATM) data types, includes: receiving the data; generating an ATM cell in an ATM cell format determined from a plurality of ATM cell formats; transferring the ATM cell across the common data path interface to an appropriate processing unit; and processing the ATM cell upon receiving it from the common data path interface.
摘要翻译：公开了用于在公共数据路径接口上传送各种数据类型的数据的方法，系统，处理单元和信号。一种用于经由公共数据路径接口在主处理单元和至少第一从属处理单元之间传送数据的代表性方法，所述主处理单元和所述至少第一从属处理单元被配置为处理多个非异步传输模式（ATM）数据类型，包括：接收数据; 以从多个ATM信元格式确定的ATM信元格式生成ATM信元; 将ATM信元跨越公共数据路径接口传送到适当的处理单元; 以及在从所述公共数据路径接口接收到所述ATM信元时处理所述ATM信元。

10. 发明授权

US08228951B2 Method and system for preventing data loss in a real-time computer system 失效
标题翻译：用于防止实时计算机系统中的数据丢失的方法和系统
公开(公告)号：US08228951B2
公开(公告)日：2012-07-24
申请号：US12427698
申请日：2009-04-21
申请人： William Scholtz , Ben Chan , Ehud Langberg , Shareq Rahman , Xy Chen , James Zhang
发明人： William Scholtz , Ben Chan , Ehud Langberg , Shareq Rahman , Xy Chen , James Zhang
IPC分类号： H04J1/02 , H04M11/00
CPC分类号： H04M3/4281 , H04M3/02 , H04M3/18 , H04M3/42365 , H04M7/006 , H04M2203/156
摘要： A method and system are provided for preventing data loss in a VoIP system. In particular, during a VoIP call, it is determined whether incoming ringing on a POTS line causes an unacceptable level of signal loss or errors. If so, for subsequent VoIP calls, the CO handling calls to the POTS line is instructed to either answer each call with a busy signal or automatically forward calls to the POTS line to the VoIP line or other selected telephone. Calling returns to normal upon ending of the VoIP call. In this manner, incoming ringing on the POTS line does not result in call dropping or lengthy retraining processes.
摘要翻译：提供了一种防止VoIP系统中的数据丢失的方法和系统。特别地，在VoIP呼叫期间，确定POTS线上的输入振铃是否导致不可接受的信号丢失或错误的水平。如果是这样，对于随后的VoIP呼叫，指示对POTS线的CO处理呼叫以忙信号来应答每个呼叫，或者自动将呼叫转移到VoIP线路或其他所选电话的POTS线路。呼叫结束时呼叫恢复正常。以这种方式，POTS线路上的呼入不会导致呼叫丢失或冗长的再训练过程。

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