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1. 发明申请

US20100061437A1 Systems and Methods for Impulse Noise Characterization 有权
标题翻译：脉冲噪声表征系统与方法
公开(公告)号：US20100061437A1
公开(公告)日：2010-03-11
申请号：US12348565
申请日：2009-01-05
申请人： Hemant Samdani , Kunal Raheja , Rahul Garg , Amitkumar Mahadevan , Patrick Duvaut
发明人： Hemant Samdani , Kunal Raheja , Rahul Garg , Amitkumar Mahadevan , Patrick Duvaut
IPC分类号： H04B17/00
CPC分类号： H04B3/46
摘要： Impulse noise from nearby or intense electrical sources can disrupt communications over digital subscriber lines (DSL). The characterization of the nature, timing and length of impulse noise sources present on a DSL loop is a critical first step in mitigating the effect of impulse noise on DSL communications. DSL standards provide histograms for impulse length and inter-arrival time of impulses. These histograms can be used to derive the nature, maximum frequency and other statistics related to impulse noise on a DSL line.
摘要翻译：来自附近或强电场的脉冲噪声可能会扰乱通过数字用户线路（DSL）的通信。存在于DSL环路上的脉冲噪声源的性质，时间和长度的表征是减轻脉冲噪声对DSL通信的影响的关键的第一步。 DSL标准提供脉冲长度和脉冲到达间隔时间的直方图。这些直方图可用于导出与DSL线路上的脉冲噪声有关的性质，最大频率和其他统计。

2. 发明申请

US20090252234A1 SYSTEMS AND METHODS FOR MONITORING IMPULSE NOISE 有权
标题翻译：用于监测脉冲噪声的系统和方法
公开(公告)号：US20090252234A1
公开(公告)日：2009-10-08
申请号：US12098696
申请日：2008-04-07
申请人： Hemant Samdani , Kunal Raheja , Rahul Garg , Patrick Duvaut , Amitkumar Mahadevan , Robert A. Day , Robin Levonas
发明人： Hemant Samdani , Kunal Raheja , Rahul Garg , Patrick Duvaut , Amitkumar Mahadevan , Robert A. Day , Robin Levonas
IPC分类号： H04B1/10
CPC分类号： H04L27/2647 , H04B3/487
摘要： Systems and methods for monitoring impulse noise are described. At least one embodiment is a method, which comprises detecting whether impulse noise is present and in response to detecting the presence of impulse noise, performing time domain analysis to determine whether one or more impulse noise sources are present based on minimum interarrival time and maximum impulse length. The method further includes performing frequency domain analysis to estimate frequencies associated with the one or more impulse noise sources and based on the time domain analysis and frequency domain analysis, providing a total number of impulse noise sources and frequencies associated with the impulse noise sources. In this regard, the embodiments described herein provide dual-speed monitoring of impulse noise in the form of short-term and long-term monitoring. The use of dual-speed monitoring ensures that dynamic changes in the impulse noise environment are quickly addressed and also ensures better characterization of multiple impulse noise sources in order to provide better impulse noise protection.
摘要翻译：描述了用于监视脉冲噪声的系统和方法。至少一个实施例是一种方法，其包括检测是否存在脉冲噪声并且响应于检测到脉冲噪声的存在，执行时域分析以基于最小间隔时间和最大脉冲来确定是否存在一个或多个脉冲噪声源长度。该方法还包括执行频域分析以估计与一个或多个脉冲噪声源相关联的频率，并且基于时域分析和频域分析，提供与脉冲噪声源相关联的脉冲噪声源和频率的总数。在这方面，本文描述的实施例以短期和长期监视的形式提供脉冲噪声的双速度监测。使用双速度监测可确保脉冲噪声环境中的动态变化得到快速解决，并确保更好地表征多个脉冲噪声源，以提供更好的脉冲噪声保护。

3. 发明授权

US07978756B2 Systems and methods for monitoring impulse noise 有权
标题翻译：用于监测脉冲噪声的系统和方法
公开(公告)号：US07978756B2
公开(公告)日：2011-07-12
申请号：US12098696
申请日：2008-04-07
申请人： Hemant Samdani , Kunal Raheja , Rahul Garg , Patrick Duvaut , Amitkumar Mahadevan , Robert A. Day , Robin Levonas
发明人： Hemant Samdani , Kunal Raheja , Rahul Garg , Patrick Duvaut , Amitkumar Mahadevan , Robert A. Day , Robin Levonas
IPC分类号： H04B3/46 , H04B17/00 , H04Q1/20
CPC分类号： H04L27/2647 , H04B3/487
摘要： Systems and methods for monitoring impulse noise are described. At least one embodiment is a method, which comprises detecting whether impulse noise is present and in response to detecting the presence of impulse noise, performing time domain analysis to determine whether one or more impulse noise sources are present based on minimum interarrival time and maximum impulse length. The method further includes performing frequency domain analysis to estimate frequencies associated with the one or more impulse noise sources and based on the time domain analysis and frequency domain analysis, providing a total number of impulse noise sources and frequencies associated with the impulse noise sources. In this regard, the embodiments described herein provide dual-speed monitoring of impulse noise in the form of short-term and long-term monitoring. The use of dual-speed monitoring ensures that dynamic changes in the impulse noise environment are quickly addressed and also ensures better characterization of multiple impulse noise sources in order to provide better impulse noise protection.
摘要翻译：描述了用于监视脉冲噪声的系统和方法。至少一个实施例是一种方法，其包括检测是否存在脉冲噪声并且响应于检测到脉冲噪声的存在，执行时域分析以基于最小间隔时间和最大脉冲来确定是否存在一个或多个脉冲噪声源长度。该方法还包括执行频域分析以估计与一个或多个脉冲噪声源相关联的频率，并且基于时域分析和频域分析，提供脉冲噪声源和与脉冲噪声源相关联的频率的总数。在这方面，本文描述的实施例以短期和长期监视的形式提供脉冲噪声的双速度监测。使用双速度监测可确保脉冲噪声环境中的动态变化得到快速解决，并确保更好地表征多个脉冲噪声源，以提供更好的脉冲噪声保护。

4. 发明授权

US08396688B2 Systems and methods for impulse noise characterization 有权
标题翻译：脉冲噪声表征的系统和方法
公开(公告)号：US08396688B2
公开(公告)日：2013-03-12
申请号：US12348565
申请日：2009-01-05
申请人： Hemant Kumar Samdani , Kunal Raheja , Rahul Garg , Amitkumar Mahadevan , Patrick Duvaut
发明人： Hemant Kumar Samdani , Kunal Raheja , Rahul Garg , Amitkumar Mahadevan , Patrick Duvaut
IPC分类号： G06F17/18 , H04B15/00 , H04Q1/20 , G01R29/26
CPC分类号： H04B3/46
摘要： Impulse noise from nearby or intense electrical sources can disrupt communications over digital subscriber lines (DSL). The characterization of the nature, timing and length of impulse noise sources present on a DSL loop is a critical first step in mitigating the effect of impulse noise on DSL communications. DSL standards provide histograms for impulse length and inter-arrival time of impulses. These histograms can be used to derive the nature, maximum frequency and other statistics related to impulse noise on a DSL line.
摘要翻译：来自附近或强电场的脉冲噪声可能会扰乱通过数字用户线路（DSL）的通信。存在于DSL环路上的脉冲噪声源的性质，时间和长度的表征是减轻脉冲噪声对DSL通信的影响的关键的第一步。 DSL标准提供脉冲长度和脉冲到达间隔时间的直方图。这些直方图可用于导出与DSL线路上的脉冲噪声有关的性质，最大频率和其他统计。

5. 发明授权

US07974181B2 Systems and methods for transmit-only peak-to-average ratio reduction in the oversampled regime using reserved tones 有权
标题翻译：使用保留色调的过采样方案中仅发送峰到峰比降低的系统和方法
公开(公告)号：US07974181B2
公开(公告)日：2011-07-05
申请号：US12138731
申请日：2008-06-13
申请人： Amitkumar Mahadevan , Patrick Duvaut , Harish Jethanandani , Rahul Garg
发明人： Amitkumar Mahadevan , Patrick Duvaut , Harish Jethanandani , Rahul Garg
IPC分类号： H04J11/00
CPC分类号： H04L27/2618
摘要： Systems and methods for reducing the peak-to-average power ratio (PAR) at the transmitter can reduce the dynamic range required in various analog components. PAR can be reduced by applying a time-domain compensation signal in the oversampled regime, using tones reserved for PAR reduction. A set of vectors corresponding to PAR tones is generated by processing out-of-phase symbols for each PAR tone to form a span matrix. The span matrix is used to find a best fit of a desired target signal to a time-domain compensation signal comprising only PAR tones.
摘要翻译：用于降低发射机的峰均功率比（PAR）的系统和方法可以减少各种模拟组件所需的动态范围。可以通过在过采样方案中应用时域补偿信号，使用保留给PAR减少的音调来减少PAR。通过处理每个PAR色调的异相符号来生成对应于PAR色调的一组矢量以形成跨度矩阵。跨度矩阵用于找到期望目标信号对仅包括PAR色调的时域补偿信号的最佳拟合。

6. 发明申请

US20090310704A1 Low Complexity Systems and Methods for Peak-to-Average Ratio (PAR) Reduction Using Reserved Tones 有权
标题翻译：低复杂度系统和使用保留音调的峰值平均比（PAR）减少的方法
公开(公告)号：US20090310704A1
公开(公告)日：2009-12-17
申请号：US12138813
申请日：2008-06-13
申请人： Harish Jethanandani , Rahul Garg , Patrick Duvaut , Amitkumar Mahadevan
发明人： Harish Jethanandani , Rahul Garg , Patrick Duvaut , Amitkumar Mahadevan
IPC分类号： H04L27/00
CPC分类号： H04L27/2618
摘要： Systems and methods for reducing the peak-to-average ratio (PAR) at the transmitter can reduce the dynamic range required in various analog components. PAR can be reduced by applying a time-domain compensation signal which reduces the magnitude of peaks in the time-domain signal prior to transmission where the time-domain compensation signals use tones that are reserved for the purpose of reducing the PAR. The reservation of these reserved tones for PAR can be implemented by altering the typical startup procedures in a digital subscriber line (xDSL) system. The use of the reserved tones to reduce the PAR can be implemented using a low complexity algorithm or using an adaptive technique.
摘要翻译：用于降低发射机峰值平均比（PAR）的系统和方法可以减少各种模拟组件所需的动态范围。可以通过应用时域补偿信号来减小PAR，该时域补偿信号在时域补偿信号使用为了减少PAR的目的而被保留的音调的同时减小时域信号中的峰值的幅度。可以通过改变数字用户线（xDSL）系统中的典型启动过程来实现用于PAR的这些保留音调的预留。可以使用低复杂度算法或使用自适应技术来实现使用保留的音调来减少PAR。

7. 发明授权

US08885736B2 Systems and methods for positioning and messaging of reserved tones for peak-to-average ratio (PAR) reduction in DSL systems 有权
标题翻译： DSL系统峰均平均比（PAR）降低的定位和消息传送的系统和方法
公开(公告)号：US08885736B2
公开(公告)日：2014-11-11
申请号：US12138657
申请日：2008-06-13
申请人： Rahul Garg , Patrick Duvaut , Amitkumar Mahadevan , Harish Jethanandani
发明人： Rahul Garg , Patrick Duvaut , Amitkumar Mahadevan , Harish Jethanandani
IPC分类号： H04K1/10 , H04L27/28 , H04M11/06
CPC分类号： H04M11/062
摘要： Systems and methods for reducing the peak-to-average ratio (PAR) at the transmitter can reduce the dynamic range required in various analog components. PAR can be reduced by applying a time-domain compensation signal which reduces the magnitude of peaks in the time-domain signal prior to transmission where the time-domain compensation signals use tones that are reserved for the purpose of reducing the PAR. The reservation of these reserved tones for PAR can be implemented by altering the typical startup procedures in a digital subscriber line (xDSL) system. The use of the reserved tones to reduce the PAR can be implemented using a low complexity algorithm or using an adaptive technique.
摘要翻译：用于降低发射机峰值平均比（PAR）的系统和方法可以减少各种模拟组件所需的动态范围。可以通过应用时域补偿信号来减小PAR，该时域补偿信号在时域补偿信号使用为了减少PAR的目的而被保留的音调的同时减小时域信号中的峰值的幅度。可以通过改变数字用户线（xDSL）系统中的典型启动过程来实现用于PAR的这些保留音调的预留。可以使用低复杂度算法或使用自适应技术来实现使用保留的音调来减少PAR。

8. 发明授权

US08275067B2 Adaptive turbo peak mitigation for peak-to-average ratio (PAR) reduction using reserved tones 有权
标题翻译：使用预留音调的峰值平均比（PAR）降低的自适应turbo峰值缓解
公开(公告)号：US08275067B2
公开(公告)日：2012-09-25
申请号：US12139146
申请日：2008-06-13
申请人： Rahul Garg , Patrick Duvaut , Harish Jethanandani , Amitkumar Mahadevan
发明人： Rahul Garg , Patrick Duvaut , Harish Jethanandani , Amitkumar Mahadevan
IPC分类号： H04L27/04 , H04L27/36 , H04B1/38
CPC分类号： H04M11/062
摘要： Systems and methods for reducing the peak-to-average ratio (PAR) at the transmitter can reduce the dynamic range required in various analog components. PAR can be reduced by applying a time-domain compensation signal which reduces the magnitude of peaks in the time-domain signal prior to transmission where the time-domain compensation signals use tones that are reserved for the purpose of reducing the PAR. The reservation of these reserved tones for PAR can be implemented by altering the typical startup procedures in a digital subscriber line (xDSL) system. The use of the reserved tones to reduce the PAR can be implemented using a low complexity algorithm or using an adaptive technique.
摘要翻译：用于降低发射机峰值平均比（PAR）的系统和方法可以减少各种模拟组件所需的动态范围。可以通过应用时域补偿信号来减小PAR，该时域补偿信号在时域补偿信号使用为了减少PAR的目的而被保留的音调的同时减小时域信号中的峰值的幅度。可以通过改变数字用户线（xDSL）系统中的典型启动过程来实现用于PAR的这些保留音调的预留。可以使用低复杂度算法或使用自适应技术来实现使用保留的音调来减少PAR。

9. 发明申请

US20090310658A1 Systems and Methods for Positioning and Messaging of Reserved Tones for Peak-to-Average Ratio (PAR) Reduction in DSL Systems 有权
标题翻译： DSL系统中峰值平均比（PAR）降低的保留音的定位和消息传递系统和方法
公开(公告)号：US20090310658A1
公开(公告)日：2009-12-17
申请号：US12138657
申请日：2008-06-13
申请人： Rahul Garg , Patrick Duvaut , Amitkumar Mahadevan , Harish Jethanandani
发明人： Rahul Garg , Patrick Duvaut , Amitkumar Mahadevan , Harish Jethanandani
IPC分类号： H04B1/38
CPC分类号： H04M11/062
摘要： Systems and methods for reducing the peak-to-average ratio (PAR) at the transmitter can reduce the dynamic range required in various analog components. PAR can be reduced by applying a time-domain compensation signal which reduces the magnitude of peaks in the time-domain signal prior to transmission where the time-domain compensation signals use tones that are reserved for the purpose of reducing the PAR. The reservation of these reserved tones for PAR can be implemented by altering the typical startup procedures in a digital subscriber line (xDSL) system. The use of the reserved tones to reduce the PAR can be implemented using a low complexity algorithm or using an adaptive technique.
摘要翻译：用于降低发射机峰值平均比（PAR）的系统和方法可以减少各种模拟组件所需的动态范围。可以通过应用时域补偿信号来减小PAR，该时域补偿信号在时域补偿信号使用为了减少PAR的目的而被保留的音调的同时减小时域信号中的峰值的幅度。可以通过改变数字用户线（xDSL）系统中的典型启动过程来实现用于PAR的这些保留音调的预留。可以使用低复杂度算法或使用自适应技术来实现使用保留的音调来减少PAR。

10. 发明授权

US08213536B2 Low complexity systems and methods for peak-to-average ratio (PAR) reduction using reserved tones 有权
标题翻译：低复杂度系统和使用保留音调的峰值平均比（PAR）减少的方法
公开(公告)号：US08213536B2
公开(公告)日：2012-07-03
申请号：US12138813
申请日：2008-06-13
申请人： Harish Jethanandani , Rahul Garg , Patrick Duvaut , Amitkumar Mahadevan
发明人： Harish Jethanandani , Rahul Garg , Patrick Duvaut , Amitkumar Mahadevan
IPC分类号： H04L25/49 , H04L23/00 , H04B1/38
CPC分类号： H04L27/2618
摘要： Systems and methods for reducing the peak-to-average ratio (PAR) at the transmitter can reduce the dynamic range required in various analog components. PAR can be reduced by applying a time-domain compensation signal which reduces the magnitude of peaks in the time-domain signal prior to transmission where the time-domain compensation signals use tones that are reserved for the purpose of reducing the PAR. The reservation of these reserved tones for PAR can be implemented by altering the typical startup procedures in a digital subscriber line (xDSL) system. The use of the reserved tones to reduce the PAR can be implemented using a low complexity algorithm or using an adaptive technique.
摘要翻译：用于降低发射机峰值平均比（PAR）的系统和方法可以减少各种模拟组件所需的动态范围。可以通过应用时域补偿信号来减小PAR，该时域补偿信号在时域补偿信号使用为了减少PAR的目的而被保留的音调的同时减小时域信号中的峰值的幅度。可以通过改变数字用户线（xDSL）系统中的典型启动过程来实现用于PAR的这些保留音调的预留。可以使用低复杂度算法或使用自适应技术来实现使用保留的音调来减少PAR。

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