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61. 发明申请

US20080080601A1 System and Method for Selectable Mask for LDSL 有权
标题翻译： LDSL可选掩码的系统和方法
公开(公告)号：US20080080601A1
公开(公告)日：2008-04-03
申请号：US11849618
申请日：2007-09-04
申请人： Patrick Duvaut , Ehud Langberg
发明人： Patrick Duvaut , Ehud Langberg
IPC分类号： H04B1/38
CPC分类号： H04Q11/04 , H04Q2213/13039 , H04Q2213/13094 , H04Q2213/13204 , H04Q2213/13396
摘要： The present invention overcomes various problems by defining two upstream masks (UI, U2) and two downstream masks (DI, D2) and using a mask selectable system for the long reach digital subscriber line (LDSL), in which a unique modem feature is activated during handshake to automatically check for physical layer status in terms of spectral compatibility and, thus, automatically optimize the boosted mode with the use of the mask selectable system choose the best combination of upstream/downstream masks in any physical layer noise scenario.
摘要翻译：本发明通过定义两个上游掩码（UI，U 2）和两个下行掩码（DI，D 2）并使用用于长距离数字用户线（LDSL）的掩码可选择系统来克服各种问题，其中唯一的调制解调器特征在握手期间被激活以在频谱兼容性方面自动检查物理层状态，并且因此利用掩模可选择系统自动优化升压模式，在任何物理层噪声场景中选择上游/下游掩码的最佳组合。

62. 发明申请

US20080049855A1 Systems and Methods for MIMO Precoding in an xDSL System 有权
标题翻译： xDSL系统中MIMO预编码的系统和方法
公开(公告)号：US20080049855A1
公开(公告)日：2008-02-28
申请号：US11845040
申请日：2007-08-25
申请人： Patrick Duvaut , Amitkumar Mahadevan , Massimo Sorbara , Ehud Langberg
发明人： Patrick Duvaut , Amitkumar Mahadevan , Massimo Sorbara , Ehud Langberg
IPC分类号： H04L27/28
CPC分类号： H04B3/32 , H04L1/0042
摘要： Systems and methods for off-diagonal MIMO precoders are described. At least one embodiment includes a method for precoding data for transmission in a discrete multi-tone (DMT) xDSL system to cancel self-induced far end crosstalk (self-FEXT) comprising: learning characteristics associated with a plurality of N users within the xDSL system to determine an initial off-diagonal multiple input multiple output (MIMO) precoder (ODMP) for a given tone frequency; and converging towards an optimum ODMP from the initial ODMP in order to cancel downstream self-FEXT for the plurality of N users, wherein the ODMP is represented as a zero diagonal matrix with only off-diagonal terms, and wherein the converging towards the optimum ODMP comprises: maximizing the channel capacity for the plurality of N users for the given tone frequency; and minimizing an increase in transmit power of the xDSL system relative to an original transmit power where a precoder is not active.
摘要翻译：描述了非对角MIMO预编码器的系统和方法。至少一个实施例包括用于预编码用于在离散多音（DMT）xDSL系统中传输的数据以消除自感应远端串扰（self-FEXT）的方法，包括：与xDSL内的多个N个用户相关联的学习特征系统确定用于给定音频的初始非对角多输入多输出（MIMO）预编码器（ODMP）; 并从最初的ODMP收敛到最佳的ODMP，以消除多个N个用户的下游自身FEXT，其中ODMP被表示为只有非对角项的零对角矩阵，并且其中朝向最佳ODMP 包括：使给定音调频率的多个N个用户的信道容量最大化; 并且最小化xDSL系统相对于预编码器不活动的原始发射功率的发射功率的增加。

63. 发明授权

US07295603B2 Method and system for virtual exchange reference impact (VERI) for use in mixed spectrum management in DSL 有权
标题翻译：用于DSL中混合频谱管理的虚拟交换参考影响的方法和系统（VERI）
公开(公告)号：US07295603B2
公开(公告)日：2007-11-13
申请号：US11009710
申请日：2004-12-13
申请人： Patrick Duvaut , Ehud Langberg , Anupama Ramalingam
发明人： Patrick Duvaut , Ehud Langberg , Anupama Ramalingam
IPC分类号： H04B1/38 , H04L5/16
CPC分类号： H04B3/32 , H04B3/487
摘要： A method and apparatus implements a Virtual Exchange Reference Impact (VERI) technique to define a pattern to shape the spectrum of a cabinet deployed system to minimize its impact, e.g., FEXT, into an exchange deployed system while achieving effective cabinet system performance, e.g., in terms of data transmission rate. The invention shapes the cabinet system to replicate a self-impact of the exchange system on itself based on the known distance of the cabinet from the exchange. The shaping is required when both exchange and cabinet systems share the same bundle and exhibit overlapped bandwidths. A particular example consists of VDSL deployed from remote cabinet impacting ADSL2/ADSL2+ deployed from the exchange.
摘要翻译：一种方法和装置实现了虚拟交换参考影响（VERI）技术，以定义一种模式来形成柜部署系统的频谱，以将其影响（例如FEXT）最小化到交换部署系统中，同时实现有效的机柜系统性能，在数据传输率方面。本发明根据柜与交换机的已知距离对橱柜系统进行整形以将交换系统的自身影响复制到其自身上。交换和机柜系统共享相同的捆绑包并展示重叠的带宽时，需要进行整形。一个特定的例子包括从远程机柜部署的VDSL，影响从交换机部署的ADSL2 / ADSL2 +。

64. 发明申请

US20070157065A1 Self-Protection Against Non-Stationary Disturbances 有权
标题翻译：对非固定干扰的自我保护
公开(公告)号：US20070157065A1
公开(公告)日：2007-07-05
申请号：US11615535
申请日：2006-12-22
申请人： Julien Pons , Amitkumar Mahadevan , Patrick Duvaut
发明人： Julien Pons , Amitkumar Mahadevan , Patrick Duvaut
IPC分类号： H03M13/00 , G06F11/00
CPC分类号： H03M13/2732 , H03M13/1102 , H03M13/2957 , H03M13/31 , H03M13/6362 , H04L1/0066 , H04L1/0068 , H04L1/0071 , H04L27/2601
摘要： Included are embodiments for self protection. At least one embodiment includes Self-protection Unit for protecting a signal that includes a first receiving component configured to receive data, the received data being received as at least one frame and a subframing component configured to subframe at least a portion of the received data, wherein subframing includes converting the at least one into a plurality of subframes. Some embodiments include a subframe interleaver component configured to interleave at least a portion of the subframes.
摘要翻译：包括自我保护的实施例。至少一个实施例包括用于保护包括被配置为接收数据的第一接收组件的信号的自保护单元，被接收为至少一个帧的接收数据和被配置为子帧接收到的数据的至少一部分的子帧组件，其中子帧包括将所述至少一个转换成多个子帧。一些实施例包括被配置为交织子帧的至少一部分的子帧交织器组件。

65. 发明授权

US07136423B1 Side tones packets injection (STPI) for PAR reduction 有权
标题翻译：侧音分组注入（STPI）用于PAR减少
公开(公告)号：US07136423B1
公开(公告)日：2006-11-14
申请号：US10263732
申请日：2002-10-04
申请人： Patrick Duvaut , Laurent Pierrugues
发明人： Patrick Duvaut , Laurent Pierrugues
IPC分类号： H04K1/10 , H04B1/10 , H04B1/69 , H04J11/00 , H04J1/00
CPC分类号： H04L27/2614
摘要： A method and system for reducing the power to average ratio (PAR) at the transmitter after the up sampling and interpolation filter. In the time domain, Side Tone Packets Injection (STPI) system and method detects the optimal peaks that will result in having a low PAR at a sampling rate of T/K and combines an optimal binary and a PAR-lowering sequence and an upsampled, interpolated original discrete time signal at the scale of one extended symbol for multi-carrier modulation and at the scale M of symbols for single-carrier modulation. STPI does not require peaks search and processing at the scale of many time samples, does not require iterative Fast Fourier Transform (FFT) and Inverse Fast Fourier Transform (IFFT) processing thus, allowing the receiver not to perform extra demodulation.
摘要翻译：一种降低上采样和插值滤波后发射机功率与平均比（PAR）的方法和系统。在时域中，Side Tone Packets Injection（STPI）系统和方法检测到将以T / K采样率产生低PAR的最佳峰值，并结合最佳二进制和PAR降序序列和上采样，用于多载波调制的一个扩展符号的尺度的内插原始离散时间信号和用于单载波调制的符号的比例M. STPI不需要大量时间样本的峰值搜索和处理，因此不需要迭代快速傅里叶变换（FFT）和快速傅里叶逆变换（IFFT）处理，从而允许接收机不进行额外的解调。

66. 发明授权

US06865256B1 Method and apparatus for determining properties of a transmission channel 失效
标题翻译：用于确定传输信道特性的方法和装置
公开(公告)号：US06865256B1
公开(公告)日：2005-03-08
申请号：US09740939
申请日：2000-12-21
申请人： Luc François Descamps , Thierry Christian Marie Doligez , Patrick Duvaut
发明人： Luc François Descamps , Thierry Christian Marie Doligez , Patrick Duvaut
IPC分类号： H04M3/26 , G01R31/11 , H04B3/20 , H04B3/46 , H04M1/24 , H04M3/08 , H04M3/22
CPC分类号： H04B3/46 , G01R31/11
摘要： The invention concerns a time domain reflectometry method for estimating properties of a transmission channel, for instance a channel for transmitting electric or acoustic signals. This method includes the steps of generating, at one end of the channel, a plurality of pulses (40, 42, 44) covering differency frequency bands, and processing the echoes provided by these pulses at the same end of the channel. The frequency bands of the generated pulses are preferably overlapping. The invention is particularly applicable to the testing of ADSL services.
摘要翻译：本发明涉及用于估计传输信道的属性的时域反射测量方法，例如用于发送电或声信号的信道。该方法包括以下步骤：在信道的一端产生覆盖不同频带的多个脉冲（40,42,44），并且处理在该信道的同一端由这些脉冲提供的回波。所生成的脉冲的频带优选重叠。本发明特别适用于ADSL业务的测试。

67. 发明授权

US08817907B2 Systems and methods for signaling for vectoring of DSL systems 有权
标题翻译：用于DSL系统向量化的信令的系统和方法
公开(公告)号：US08817907B2
公开(公告)日：2014-08-26
申请号：US12412191
申请日：2009-03-26
申请人： Massimo Sorbara , Patrick Duvaut , Amitkumar Mahadevan , Laurent Francis Alloin
发明人： Massimo Sorbara , Patrick Duvaut , Amitkumar Mahadevan , Laurent Francis Alloin
IPC分类号： H04L27/10
CPC分类号： H04L1/0045 , H04L1/1671 , H04L1/243
摘要： The measurement of far-end crosstalk (FEXT) in a Digital Subscriber Line communications is instrumental in the ability of using a multiple input multiple output (MIMO) pre-coder to cancel FEXT. A reliable robust back channel for transmission of error is instrumental to provide error samples for the proper operation of a MIMO pre-coder. Bins can be dedicated to insure bandwidth from the customer premises equipment (CPE) to the central office (CO). By increasing the margin used in the bins, robustness can be added to this back channel between the CPE and CO.
摘要翻译：数字用户线路通信中远端串扰（FEXT）的测量有助于使用多输入多输出（MIMO）预编码器取消FEXT。用于错误传输的可靠的鲁棒后置信道对于为MIMO预编码器的正确操作提供错误样本是有用的。可以专门用于保证客户端设备（CPE）到中心局（CO）的带宽。通过增加机箱中使用的余量，可以在CPE和CO之间的后向通道中增加鲁棒性。

68. 发明授权

US08515017B2 Systems and methods for loop termination detection based on per-port calibration 失效
标题翻译：基于每端口校准的循环终止检测的系统和方法
公开(公告)号：US08515017B2
公开(公告)日：2013-08-20
申请号：US12044531
申请日：2008-03-07
申请人： Patrick Duvaut , Amitkumar Mahadevan , Vaibhav Dinesh
发明人： Patrick Duvaut , Amitkumar Mahadevan , Vaibhav Dinesh
IPC分类号： H04M1/24
CPC分类号： H04M3/302 , H04M3/085
摘要： Systems and methods for performing loop termination are described. One embodiment is a method that comprises receiving a per-port calibrated echo signal of a loop under test, receiving a region designation and a loop length for the loop under test, and determining whether the loop is terminated by a short or open termination based on phase of the per-port calibrated echo signal.
摘要翻译：描述用于执行环路终止的系统和方法。一个实施例是一种方法，其包括接收被测环路的每端口校准的回波信号，接收被测环路的区域指定和环路长度，以及基于基于每端口校准回波信号的相位。

69. 发明授权

US08369426B2 Reducing the effect of noise in a multi-channel telecommunication receiver 有权
标题翻译：降低多声道电信接收机中噪声的影响
公开(公告)号：US08369426B2
公开(公告)日：2013-02-05
申请号：US12114169
申请日：2008-05-02
申请人： Shailendra Kumar Singh , Patrick Duvaut
发明人： Shailendra Kumar Singh , Patrick Duvaut
IPC分类号： H04B1/10
CPC分类号： H04B1/126 , H04B3/32
摘要： A telecommunication receiver provided according to the present invention is implemented to receive a first signal containing information and noise on a first set of sensors and a second signal containing only noise on a second set of sensors. Receiver then decodes the information using first signal and second signal. In one embodiment, a bonded DSL receiver with k signals sensors is implemented with additional s number of noise only sensors to receive only noise. Accordingly, joint demodulation is performed using signals received on k signals sensors and s noise only sensors. The noise sensor is implemented in common mode.
摘要翻译：根据本发明提供的电信接收机被实现为在第一组传感器上接收包含信息和噪声的第一信号，以及在第二组传感器上仅接收噪声的第二信号。然后，接收器使用第一信号和第二信号来解码信息。在一个实施例中，具有k个信号传感器的绑定DSL接收机用附加的数个仅噪声的传感器来实现，以仅接收噪声。因此，使用在k个信号传感器和仅噪声传感器上接收的信号来执行联合解调。噪声传感器以普通模式实现。

70. 发明授权

US08290033B2 Systems and methods for performing combined equalization in communication systems 有权
标题翻译：用于在通信系统中执行组合均衡的系统和方法
公开(公告)号：US08290033B2
公开(公告)日：2012-10-16
申请号：US12351071
申请日：2009-01-09
申请人： Rahul Garg , Kunal Lal , Devesh Chauhan , Patrick Duvaut
发明人： Rahul Garg , Kunal Lal , Devesh Chauhan , Patrick Duvaut
IPC分类号： H04L27/01
CPC分类号： H04L25/03057 , H04L25/03159 , H04L2025/03414 , H04L2025/03605 , H04L2025/03617
摘要： A system is described for performing combined equalization. The system comprises a time domain equalizer (TEQ) configured to receive a signal and shorten a CIR (channel impulse response) of the received signal, a Fast Fourier Transform (FFT) module for demodulating the received signal, and an equalization block for reducing inter-carrier interference (ICI) and inter-symbol interference (ISI). The equalization block comprises at least one of: a feed forward equalizer and a feed back equalizer. The system further comprises a slicer circuit configured to generate a hard-limited decision for a symbol corresponding to the received signal.
摘要翻译：描述了用于执行组合均衡的系统。该系统包括被配置为接收信号并缩短接收信号的CIR（信道脉冲响应）的时域均衡器（TEQ），用于解调接收信号的快速傅里叶变换（FFT）模块，以及用于减少接收信号的均衡块载波干扰（ICI）和符号间干扰（ISI）。均衡块包括以下中的至少一个：前馈均衡器和反馈均衡器。该系统还包括限幅器电路，被配置为产生对应于接收信号的符号的硬限制判定。

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