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公开(公告)号：US20140050315A1
公开(公告)日：2014-02-20
申请号：US13761012
申请日：2013-02-06
CPC分类号： H04B7/0456 , H04B3/32 , H04B7/0413 , H04B7/0854 , H04L25/0204 , H04L25/0246 , H04L27/2647
摘要： A system and method for processing an input matrix and a MIMO receiver employing the system or the method. In one embodiment, the system includes: (1) a transformer configured to receive a frame of complex data representing only some elements of an input matrix and perform a fast plane rotation on the complex data to yield rotated data and (2) a matrix updater coupled to the transformer and configured to update a memory configured to contain an output matrix with the rotated data. In one embodiment, the system and method are to estimate and mitigate alien cross-talk experienced in a vectored DSL communication system.
摘要翻译： 一种用于处理输入矩阵的系统和方法以及采用该系统或方法的MIMO接收机。 在一个实施例中，系统包括：（1）变压器，被配置为接收仅表示输入矩阵的一些元素的复数数据帧，并对复数据执行快速平面旋转以产生旋转数据，以及（2）矩阵更新器 耦合到变压器并且被配置为更新被配置为包含具有旋转数据的输出矩阵的存储器。 在一个实施例中，系统和方法是估计和减轻在向量DSL通信系统中经历的外来串扰。
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2.发明申请Timing and Time Information Extraction in a Radio Controlled Clock Receiver 审中-公开无线电控制时钟接收机中的定时和时间信息提取公开(公告)号：US20130121399A1
公开(公告)日：2013-05-16
申请号：US13663184
申请日：2012-10-29
申请人： XW LLC dba Xtendwave
发明人： Oren E. Eliezer
摘要： A novel and useful system and method for extracting timing, time and additional information from a broadcast received in a radio controlled clock (RCC) receiver. The RCC receiver extracts timing information represented by a known synchronization sequence that is used for acquisition and tracking purposes. The RCC receiver extracts time information as a merged 26-bit time information word linearly coded into 31 bits comprising the number of minutes (or hours) since the turn of the current century. A minute counter representing the 26 bits is converted into the date, hour, and minute. The RCC extracts additional information including the schedule for the next daylight saving time transition and for an imminent leap second. The communications protocol optionally employs error correcting codes to provide protection for data fields in the frame, which the RCC may use to enhance reception reliability in the presence of noise and interference.
摘要翻译： 一种用于从在无线电控制时钟（RCC）接收机中接收的广播中提取定时，时间和附加信息的新颖且有用的系统和方法。 RCC接收器提取由用于获取和跟踪目的的已知同步序列表示的定时信息。 RCC接收机将时间信息提取为合并的26位时间信息字，其被线性编码为31位，包括自本世纪之交以来的分钟数（或小时）。 表示26位的分钟计数器被转换成日期，时间和分钟。 RCC提取附加信息，包括下一个夏令时转换的时间表和即将来临的闰秒。 通信协议可选地使用纠错码来为帧中的数据字段提供保护，RCC可以在存在噪声和干扰的情况下用于增强接收可靠性。
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3.发明授权公开(公告)号：US08659457B2
公开(公告)日：2014-02-25
申请号：US13787718
申请日：2013-03-06
申请人： XW, LLC
发明人： Oren E. Eliezer , Ryan Lobo , Mark Appel
IPC分类号： H03M1/06
CPC分类号： H03M1/1009 , H03M1/66
摘要： Cost-effective structures and methods that allow an integrated digital-to-analog converter (DAC) to simultaneously achieve wide dynamic ranges and bandwidths through the use of built-in measurement and compensation mechanisms that are primarily digital. The measurements of the DAC's distortions are made with a relatively simple analog-to-digital converter (ADC) that is not designed to accommodate the combination of the bandwidth and the resolution offered by the DAC, but is nonetheless sufficient in determining the characteristics of the DAC's impairments during a calibration procedure. This information is then used in a feed-forward compensation system during the DAC's normal operation to estimate and cancel the distortions in its output signal that could result from the various impairments.
摘要翻译： 经济高效的结构和方法，允许集成的数模转换器（DAC）通过使用主要是数字的内置测量和补偿机制来同时实现宽动态范围和带宽。 DAC的失真测量是通过一个相对简单的模数转换器（ADC）进行的，该转换器不是为了适应DAC提供的带宽和分辨率的组合而设计的，但是在确定 DAC在校准过程中的损伤。 然后，在DAC正常运行期间，该信息用于前馈补偿系统，以估计和消除可能由各种损伤引起的输出信号中的失真。
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公开(公告)号：US08693582B2
公开(公告)日：2014-04-08
申请号：US13764049
申请日：2013-02-11
申请人： XW LLC
发明人： Oren E. Eliezer , Dennis I. Robbins , Thomas Jung
IPC分类号： H03D1/24
CPC分类号： H04H40/27 , G04R20/10 , G04R60/10 , H01Q1/273 , H01Q7/08 , H01Q21/29 , H04B7/0837 , Y02D70/26 , Y02D70/444
摘要： A novel and useful multi-antenna receiver that receives, demodulates and decodes a broadcast signal, whose modulation and encoding of time and timing information allow for reliable and power-efficient operation. The multi-antenna receiver of the present invention is adapted to eliminate or substantially reduce the reception nulls that occur in receivers having a single antenna that is placed in a fixed position. Two or more antennas are employed whereby the receiver generates a combined signal based on a combination of the individual antenna signals or selects one of the antenna signals for input to the receiver based on desired criteria such as signal-to-noise-and-interference-ratio (SNIR). This results in greater robustness of the communication link by reducing or eliminating reception nulls and by rejecting interference through the selection of the antenna for which the signal-to-interference ratio is higher. The invention includes various antenna configurations that are adapted to reuse a single core for multiple antennas or to otherwise reduce size and/or cost.
摘要翻译： 一种新颖有用的多天线接收机，其接收，解调和解码广播信号，其调制和编码的时间和定时信息允许可靠和功率有效的操作。 本发明的多天线接收机适于消除或基本上减少在具有放置在固定位置的单个天线的接收机中发生的接收零点。 采用两个或更多个天线，由此接收机基于各个天线信号的组合产生组合信号，或者基于期望的准则来选择天线信号之一用于输入到接收机，例如信噪比干扰 - 比（SNIR）。 这通过减少或消除接收空值并且通过对信号干扰比较高的天线的选择来抑制干扰而导致通信链路的更强鲁棒性。 本发明包括各种天线配置，其适于重复使用用于多个天线的单个核，或以其他方式减小尺寸和/或成本。
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5.发明授权Adaptive radio controlled clock employing different modes of operation for different applications and scenarios 失效自适应无线电控制时钟，针对不同的应用和场景采用不同的操作模式公开(公告)号：US08605778B2
公开(公告)日：2013-12-10
申请号：US13678223
申请日：2012-11-15
申请人： XW LLC
发明人： Oren E. Eliezer
IPC分类号： H03K9/08
摘要： A configurable system and method for a radio controlled clock (RCC) receiver adapted to apply different strategies for extracting timing and time information from a phase modulated signal depending on the type of application the RCC is used in and on the reception conditions. The official time signal is broadcast from a central location using a modulation scheme which includes phase modulation that alternates between different information rates, allowing for multiple alternative reception modes that are suited for different ranges of signal-to-interference-and-noise-ratio (SINR). The operation of the RCC is configured by the application that hosts it, such that the reception performance and the energy consumption best suit that application. The reception mode used by the RCC at a given time may be selected automatically, i.e. without user intervention, based on the device's profile of operation and the reception conditions.
摘要翻译： 一种用于无线电控制时钟（RCC）接收机的可配置系统和方法，适用于根据使用RCC的应用类型和接收条件，从相位调制信号中提取时间和时间信息的不同策略。 使用包括在不同信息速率之间交替的相位调制的调制方案从中央位置广播官方时间信号，允许适用于信号与干扰和噪声比的不同范围的多个替代接收模式（ SINR）。 RCC的操作由托管它的应用程序配置，使得接收性能和能耗最适合该应用。 RCC在给定时间使用的接收模式可以根据设备的操作简档和接收条件自动选择，即无用户干预。
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6.发明申请公开(公告)号：US20130114451A1
公开(公告)日：2013-05-09
申请号：US13667794
申请日：2012-11-02
发明人： Naofal Al-Dhahir , Oren E. Eliezer , Dennis I. Robbins , Aditya Awasthi , Zahid Islam , Ahmad Gomaa
IPC分类号： H04W24/02
CPC分类号： H04B7/0854 , H04B7/0413
摘要： Various embodiments of a method of mitigating interference in an OFDMA cellular network and a user terminal incorporating various of the embodiments. In one embodiment, the method includes: (1) selecting at least one dominant interfering signal, (2) generating estimates of a desired signal and the at least one dominant interfering signal, (3) jointly deciding based on the estimates such that an energy of a residual error is reduced and (4) mitigating interference based on the estimates.
摘要翻译： 减少OFDMA蜂窝网络中的干扰的方法和结合各种实施例的用户终端的各种实施例。 在一个实施例中，该方法包括：（1）选择至少一个主要干扰信号，（2）产生所需信号和所述至少一个主要干扰信号的估计，（3）基于所述估计来共同决定能量 残余误差减少，（4）基于估计来减轻干扰。
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7.发明申请SELF-COMPENSATING DIGITAL-TO-ANALOG CONVERTER AND METHODS OF CALIBRATION AND OPERATION THEREOF 失效自适应数字到模拟转换器及其校准和操作方法公开(公告)号：US20130234871A1
公开(公告)日：2013-09-12
申请号：US13787718
申请日：2013-03-06
发明人： Oren E. Eliezer , Ryan Lobo , Mark Appel
IPC分类号： H03M1/10
CPC分类号： H03M1/1009 , H03M1/66
摘要： Cost-effective structures and methods that allow an integrated digital-to-analog converter (DAC) to simultaneously achieve wide dynamic ranges and bandwidths through the use of built-in measurement and compensation mechanisms that are primarily digital. The measurements of the DAC's distortions are made with a relatively simple analog-to-digital converter (ADC) that is not designed to accommodate the combination of the bandwidth and the resolution offered by the DAC, but is nonetheless sufficient in determining the characteristics of the DAC's impairments during a calibration procedure. This information is then used in a feed-forward compensation system during the DAC's normal operation to estimate and cancel the distortions in its output signal that could result from the various impairments.
摘要翻译： 经济高效的结构和方法，允许集成的数模转换器（DAC）通过使用主要是数字的内置测量和补偿机制来同时实现宽动态范围和带宽。 DAC的失真测量是通过一个相对简单的模数转换器（ADC）进行的，该转换器不是为了适应DAC提供的带宽和分辨率的组合而设计的，但是在确定 DAC在校准过程中的损伤。 然后，在DAC正常运行期间，该信息用于前馈补偿系统，以估计和消除可能由各种损伤引起的输出信号中的失真。
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公开(公告)号：US20130230094A1
公开(公告)日：2013-09-05
申请号：US13764049
申请日：2013-02-11
申请人： XW LLC DBA XTENDWAVE
发明人： Oren E. Eliezer , Dennis I. Robbins , Thomas Jung
IPC分类号： H04H40/27
CPC分类号： H04H40/27 , G04R20/10 , G04R60/10 , H01Q1/273 , H01Q7/08 , H01Q21/29 , H04B7/0837 , Y02D70/26 , Y02D70/444
摘要： A novel and useful multi-antenna receiver that receives, demodulates and decodes a broadcast signal, whose modulation and encoding of time and timing information allow for reliable and power-efficient operation. The multi-antenna receiver of the present invention is adapted to eliminate or substantially reduce the reception nulls that occur in receivers having a single antenna that is placed in a fixed position. Two or more antennas are employed whereby the receiver generates a combined signal based on a combination of the individual antenna signals or selects one of the antenna signals for input to the receiver based on desired criteria such as signal-to-noise-and-interference-ratio (SNIR). This results in greater robustness of the communication link by reducing or eliminating reception nulls and by rejecting interference through the selection of the antenna for which the signal-to-interference ratio is higher. The invention includes various antenna configurations that are adapted to reuse a single core for multiple antennas or to otherwise reduce size and/or cost.
摘要翻译： 一种新颖有用的多天线接收机，其接收，解调和解码广播信号，其调制和编码的时间和定时信息允许可靠和功率有效的操作。 本发明的多天线接收机适于消除或基本上减少在具有放置在固定位置的单个天线的接收机中发生的接收零点。 采用两个或更多个天线，由此接收机基于各个天线信号的组合产生组合信号，或者基于期望的准则来选择天线信号之一用于输入到接收机，例如信噪比干扰 - 比（SNIR）。 这通过减少或消除接收空值并且通过对信号干扰比较高的天线的选择来抑制干扰而导致通信链路的更强鲁棒性。 本发明包括各种天线配置，其适于重复使用用于多个天线的单个核，或以其他方式减小尺寸和/或成本。
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9.发明授权公开(公告)号：US08520550B2
公开(公告)日：2013-08-27
申请号：US13667794
申请日：2012-11-02
发明人： Naofal Al-Dhahir , Oren E. Eliezer , Dennis I. Robbins , Aditya Awasthi , Zahid Islam , Ahmad Gomaa
IPC分类号： G01R31/08
CPC分类号： H04B7/0854 , H04B7/0413
摘要： Various embodiments of a method of mitigating interference in an OFDMA cellular network and a user terminal incorporating various of the embodiments. In one embodiment, the method includes: (1) selecting at least one dominant interfering signal, (2) generating estimates of a desired signal and the at least one dominant interfering signal, (3) jointly deciding based on the estimates such that an energy of a residual error is reduced and (4) mitigating interference based on the estimates.
摘要翻译： 减少OFDMA蜂窝网络中的干扰的方法和结合各种实施例的用户终端的各种实施例。 在一个实施例中，该方法包括：（1）选择至少一个主要干扰信号，（2）产生所需信号和所述至少一个主要干扰信号的估计，（3）基于所述估计来共同决定能量 残余误差减少，（4）基于估计来减轻干扰。
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10.发明申请ADAPTIVE RADIO CONTROLLED CLOCK EMPLOYING DIFFERENT MODES OF OPERATION FOR DIFFERENT APPLICATIONS AND SCENARIOS 失效适应性无线电控制时钟使用不同的应用和场景的不同操作模式公开(公告)号：US20130121400A1
公开(公告)日：2013-05-16
申请号：US13678223
申请日：2012-11-15
申请人： XW LLC dba Xtendwave
发明人： Oren E. Eliezer
IPC分类号： G04G7/00
摘要： A configurable system and method for a radio controlled clock (RCC) receiver adapted to apply different strategies for extracting timing and time information from a phase modulated signal depending on the type of application the RCC is used in and on the reception conditions. The official time signal is broadcast from a central location using a modulation scheme which includes phase modulation that alternates between different information rates, allowing for multiple alternative reception modes that are suited for different ranges of signal-to-interference-and-noise-ratio (SINR). The operation of the RCC is configured by the application that hosts it, such that the reception performance and the energy consumption best suit that application. The reception mode used by the RCC at a given time may be selected automatically, i.e. without user intervention, based on the device's profile of operation and the reception conditions.
摘要翻译： 一种用于无线电控制时钟（RCC）接收机的可配置系统和方法，适用于根据使用RCC的应用类型和接收条件，从相位调制信号中提取时间和时间信息的不同策略。 使用包括在不同信息速率之间交替的相位调制的调制方案从中央位置广播官方时间信号，允许适用于信号与干扰和噪声比的不同范围的多个替代接收模式（ SINR）。 RCC的操作由托管它的应用程序配置，使得接收性能和能耗最适合该应用。 RCC在给定时间使用的接收模式可以根据设备的操作简档和接收条件自动选择，即无用户干预。
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