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1.发明授权Variable length burst transmission over the physical layer of a multilayer transmission format 失效多层传输格式的物理层上的可变长度突发传输公开(公告)号：US06285681B1
公开(公告)日：2001-09-04
申请号：US09059113
申请日：1998-04-13
IPC分类号： H04Q1104
CPC分类号： H04L1/0065 , H04L1/0002 , H04L1/0003 , H04L1/0006 , H04L1/0007 , H04L1/0009 , H04L1/0018 , H04L1/0071 , H04L1/1809 , H04L12/2801 , H04L2012/5607 , H04L2012/5645 , H04L2012/5647 , H04L2012/5652 , H04Q11/0478
摘要： Apparatus is provided for communicating data packets in variable length bursts over a physical layer in a multilayer data communication scheme. Each burst contains information data (40, 50, 60, 64, 74, 78, 82) and overhead (30, 32, 34, 36, 38, 42, 44, 62, 66, 76, 80, 84). The overhead includes forward error control (FEC) data (42, 62, 66, 76, 80, 84). Different burst modes (FIG. 2, 3, 4, 5) are provided to enable a trade-off to be made between bandwidth efficiency and data transmission robustness. The burst modes provide different combinations of modulation (such as QPSK and 16-QAM), symbol rates, FEC coding levels and frame and preamble structure. The apparatus is particularly suitable for use in upstream communications over hybrid fiber coax cable television plants.
摘要翻译： 提供了用于在多层数据通信方案中在物理层上以可变长度突发传送数据分组的装置。 每个突发包含信息数据（40,50,60,64,74,78,82）和头顶（30,32,34,36,38,42,44,62,66,76,80,84）。 开销包括前向错误控制（FEC）数据（42,62,66,76,80,84）。 提供了不同的突发模式（图2,3,4,5），以便能够在带宽效率和数据传输鲁棒性之间进行权衡。 突发模式提供了不同的调制组合（例如QPSK和16-QAM），符号率，FEC编码电平和帧和前导码结构。 该装置特别适用于混合光纤同轴电缆电视设备的上行通信。
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2.发明授权公开(公告)号：US09350451B2
公开(公告)日：2016-05-24
申请号：US12765821
申请日：2010-04-22
IPC分类号： H04B10/2575 , H04B10/50 , H04B10/54 , H04B10/564
CPC分类号： H04B10/25751 , H04B10/50 , H04B10/54 , H04B10/541 , H04B10/564
摘要： Signal detection for optical transmitters in networks with optical combining. Presented herein is a multi-faceted means for performing electrical to optical conversion such as in an optical transmitter as implemented within a communication system including at least some optical communication links therein. The turning on and turning off of a light source (e.g., a laser diode (LD), a light emitting diode (LED), and/or other component that performs electrical to optical conversion) is performed in accordance with a number of operational parameters. Some communication systems include multiple optical links (e.g., multiple fiber-optic links) from multiple transmitters that connect to a common receiver. In addition, some optical transmitters include multiple electrical links (e.g., multiple electrical communication links) from multiple communication devices that connect thereto.
摘要翻译： 光耦合网络中光发射机的信号检测。 这里提出的是用于执行电转换到光转换的多方面装置，例如在包括其中的至少一些光通信链路的通信系统内实现的光发射机中。 根据多个操作参数执行光源（例如，激光二极管（LD），发光二极管（LED）和/或执行电光转换的其它部件）的导通和关闭 。 一些通信系统包括来自连接到公共接收机的多个发射机的多个光链路（例如，多个光纤链路）。 此外，一些光发射机包括来自与其连接的多个通信设备的多个电气链路（例如，多个电气通信链路）。
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公开(公告)号：US09252917B2
公开(公告)日：2016-02-02
申请号：US13428357
申请日：2012-03-23
CPC分类号： H04L1/004 , H04L1/20 , H04L2001/0096
摘要： Upstream burst noise measurement and characterization. One or more communication devices is implemented to detect and measure burst noise event(s) within channel(s) associated with communication link(s) within communication system(s) or network(s). Detection and measurement of a burst noise event may be made during active communications on one or more other channels, and may be made during active communications on two channels respectively adjacent to the channel on which the burst noise event is being detected and measured. The channel on which the burst noise event is detected and measured may be an unused channel. The detection and measurement of the burst noise event may be made during a quiet time slot within one of the channels. Correlation (e.g., with respect time) may be determined with respect to different respective layers within a communication device (e.g., with respect to MAC and PHY layers).
摘要翻译： 上游突发噪声测量和表征。 实现一个或多个通信设备以检测和测量与通信系统或网络内的通信链路相关联的信道内的突发噪声事件。 突发噪声事件的检测和测量可以在一个或多个其它信道上的有效通信期间进行，并且可以在与在其上检测和测量突发噪声事件的信道相邻的两个信道上的有效通信期间进行。 检测和测量突发噪声事件的信道可以是未使用的信道。 突发噪声事件的检测和测量可以在一个信道内的安静时隙内进行。 相关性（例如，相对于时间）可以针对通信设备内的不同相应层（例如，相对于MAC层和PHY层）来确定。
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公开(公告)号：US20120243597A1
公开(公告)日：2012-09-27
申请号：US13428309
申请日：2012-03-23
CPC分类号： H04L25/022 , H04L25/03 , H04L25/03006
摘要： Upstream frequency response measurement and characterization. Signaling is provided between respective communication devices within a communication system. Based upon at least one of these signals, one of the communication devices captures a number of sample sets corresponding thereto at different respective frequencies (e.g., a different respective center frequencies, frequency bands, etc.). Then, spectral analysis is performed with respect to each of the sample sets to generate a respective and corresponding channel response estimate there from. After this number of channel response estimates is determined, they are combined or splice together to generate a full channel response estimate. In implementations including an equalizer, different respective sample sets may correspond to those that have undergone equalization processing and those that have not.
摘要翻译： 上行频率响应测量和表征。 在通信系统内的各个通信设备之间提供信令。 基于这些信号中的至少一个，通信设备之一以不同的相应频率（例如，不同的相应中心频率，频带等）捕获与其对应的多个采样集。 然后，相对于每个样本集执行频谱分析，以从其中产生相应和相应的信道响应估计。 在确定了这个数量的信道响应估计之后，将它们组合或拼接在一起以产生全信道响应估计。 在包括均衡器的实现中，不同的相应样本集可以对应于已经经历均衡处理的那些样本集合，以及未经均衡处理的那些。
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5.发明授权Linear distortion and interference estimation using decision feedback equalizer coefficients 有权使用判决反馈均衡器系数的线性失真和干扰估计公开(公告)号：US08817865B2
公开(公告)日：2014-08-26
申请号：US13406777
申请日：2012-02-28
申请人： Bruce J. Currivan , Thomas J. Kolze , Roger Fish , Victor T. Hou
发明人： Bruce J. Currivan , Thomas J. Kolze , Roger Fish , Victor T. Hou
IPC分类号： H04L27/01
CPC分类号： H04L25/03057 , H04L25/022
摘要： Linear distortion and interference estimation using decision feedback equalizer coefficients. Processing of different respective groups of equalizer coefficients may be made to determine the residual frequency response of an equalizer and/or device in which the equalizer is implemented. Such an equalizer may be implemented within any of a number of respective communication devices including those operative within satellite, wireless, wired, fiber-optic, and/or mobile communication systems. A first group of equalizer coefficients corresponds to certain filtering characteristics of the equalizer and/or device in which the equalizer is implemented. The equalizer is implemented to process a signal to generate a second group of equalizer coefficients. Processing and/or analysis of the first group of equalizer coefficients and the second group of equalizer coefficients will generate a third group of equalizer coefficients corresponding to the residual frequency response of the equalizer and/or device in which the equalizer is implemented.
摘要翻译： 使用判决反馈均衡器系数的线性失真和干扰估计。 可以对不同的各组均衡器系数进行处理，以确定实现均衡器的均衡器和/或设备的残余频率响应。 这种均衡器可以在包括在卫星，无线，有线，光纤和/或移动通信系统内的各种通信设备中的任何一个内的任何一个中实现。 均衡器系数的第一组对应于实现均衡器的均衡器和/或器件的某些滤波特性。 实现均衡器来处理信号以产生第二组均衡器系数。 第一组均衡器系数和第二组均衡器系数的处理和/或分析将产生对应于实现均衡器的均衡器和/或器件的残余频率响应的第三组均衡器系数。
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6.发明授权公开(公告)号：US08891699B2
公开(公告)日：2014-11-18
申请号：US13428698
申请日：2012-03-23
IPC分类号： H03D1/04
CPC分类号： H04L25/03159 , H04L25/03878
摘要： Characterization and assessment of communication channel average group delay variation. A signal having repeated signal components therein is received by a communication device, and that signal undergoes appropriate processing to determine respective amplitude and phase of a number of frequency bins. The phase difference from bin to bin (including respecting unwrapping, and proper normalization) is used to determine the group delay of a communication channel, or portion thereof, as a function of frequency. Multiple respective group delay measurements may be averaged to generate a wideband group delay of the communication channel as a function of frequency. Overlap between different respective band-edge portions of the communication channel may assist in generating a seamless continuous wideband spectrum estimation for use in determining the wideband group delay of the communication channel.
摘要翻译： 通信信道平均群延迟变化的特征和评估。 其中具有重复信号分量的信号由通信设备接收，并且该信号经过适当的处理以确定多个频率仓的相应振幅和相位。 使用从bin到bin的相位差（包括关于展开和适当的归一化）来确定作为频率的函数的通信信道或其部分的组延迟。 多个相应的组延迟测量可以被平均以产生作为频率的函数的通信信道的宽带组延迟。 通信信道的不同相应带边部分之间的重叠可以有助于产生用于确定通信信道的宽带群延迟的无缝连续宽带频谱估计。
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公开(公告)号：US20120243527A1
公开(公告)日：2012-09-27
申请号：US13428357
申请日：2012-03-23
CPC分类号： H04L1/004 , H04L1/20 , H04L2001/0096
摘要： Upstream burst noise measurement and characterization. One or more communication devices is implemented to detect and measure burst noise event(s) within channel(s) associated with communication link(s) within communication system(s) or network(s). Detection and measurement of a burst noise event may be made during active communications on one or more other channels, and may be made during active communications on two channels respectively adjacent to the channel on which the burst noise event is being detected and measured. The channel on which the burst noise event is detected and measured may be an unused channel. The detection and measurement of the burst noise event may be made during a quiet time slot within one of the channels. Correlation (e.g., with respect time) may be determined with respect to different respective layers within a communication device (e.g., with respect to MAC and PHY layers).
摘要翻译： 上游突发噪声测量和表征。 实现一个或多个通信设备以检测和测量与通信系统或网络内的通信链路相关联的信道内的突发噪声事件。 突发噪声事件的检测和测量可以在一个或多个其它信道上的有效通信期间进行，并且可以在与在其上检测和测量突发噪声事件的信道相邻的两个信道上的有效通信期间进行。 检测和测量突发噪声事件的信道可以是未使用的信道。 突发噪声事件的检测和测量可以在一个信道内的安静时隙内进行。 相关性（例如，相对于时间）可以针对通信设备内的不同相应层（例如，相对于MAC层和PHY层）来确定。
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8.发明申请公开(公告)号：US20120230385A1
公开(公告)日：2012-09-13
申请号：US13406877
申请日：2012-02-28
申请人： Bruce J. Currivan , Thomas J. Kolze , Roger Fish , Victor T. Hou
发明人： Bruce J. Currivan , Thomas J. Kolze , Roger Fish , Victor T. Hou
IPC分类号： H04L27/01
CPC分类号： H04L25/03057 , H04L25/022
摘要： Narrowband ingress estimation and characterization using equalizer taps. A equalizer including a feed forward equalizer (FFE) and a decision feedback equalizer (DFE) is implemented to process an input signal thereby generating an output signal. Analysis of the frequency response of the equalizer including the FFE and the DFE of the equalizer allows for the determination of whether or not narrowband ingress exists within the signal received by the equalizer. For example, analysis of the signal output from the equalizer provides for determination of the overall frequency response of the equalizer. In addition, analysis of the respective equalizer coefficients within one or both of the FFE and the DFE of the equalizer may be used to determine the overall frequency response of the equalizer. Narrowband ingress may be identified when the combination of the FFE (having a notch therein) and the DFE provides for an overall flat frequency response.
摘要翻译： 使用均衡器抽头的窄带入口估计和表征。 实现包括前馈均衡器（FFE）和判决反馈均衡器（DFE）的均衡器来处理输入信号从而产生输出信号。 对包括均衡器的FFE和DFE的均衡器的频率响应的分析允许确定在均衡器接收到的信号内是否存在窄带入口。 例如，从均衡器输出的信号的分析提供了均衡器的总频率响应的确定。 此外，可以使用均衡器的FFE和DFE中的一个或两个内的相应均衡器系数的分析来确定均衡器的总体频率响应。 当FFE（其中有凹口）和DFE的组合提供整体平坦的频率响应时，可以识别窄带入口。
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公开(公告)号：US08948316B2
公开(公告)日：2015-02-03
申请号：US13428309
申请日：2012-03-23
CPC分类号： H04L25/022 , H04L25/03 , H04L25/03006
摘要： Upstream frequency response measurement and characterization. Signaling is provided between respective communication devices within a communication system. Based upon at least one of these signals, one of the communication devices captures a number of sample sets corresponding thereto at different respective frequencies (e.g., a different respective center frequencies, frequency bands, etc.). Then, spectral analysis is performed with respect to each of the sample sets to generate a respective and corresponding channel response estimate there from. After this number of channel response estimates is determined, they are combined or splice together to generate a full channel response estimate. In implementations including an equalizer, different respective sample sets may correspond to those that have undergone equalization processing and those that have not.
摘要翻译： 上行频率响应测量和表征。 在通信系统内的各个通信设备之间提供信令。 基于这些信号中的至少一个，通信设备之一以不同的相应频率（例如，不同的相应中心频率，频带等）捕获与其对应的多个采样集。 然后，相对于每个样本集执行频谱分析，以从其中产生相应和相应的信道响应估计。 在确定了这个数量的信道响应估计之后，将它们组合或拼接在一起以产生全信道响应估计。 在包括均衡器的实现中，不同的相应样本集可以对应于已经经历均衡处理的那些样本集合，以及未经均衡处理的那些。
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10.发明授权公开(公告)号：US08724689B2
公开(公告)日：2014-05-13
申请号：US13406877
申请日：2012-02-28
申请人： Bruce J. Currivan , Thomas J. Kolze , Roger Fish , Victor T. Hou
发明人： Bruce J. Currivan , Thomas J. Kolze , Roger Fish , Victor T. Hou
IPC分类号： H04L27/01
CPC分类号： H04L25/03057 , H04L25/022
摘要： Narrowband ingress estimation and characterization using equalizer taps. A equalizer including a feed forward equalizer (FFE) and a decision feedback equalizer (DFE) is implemented to process an input signal thereby generating an output signal. Analysis of the frequency response of the equalizer including the FFE and the DFE of the equalizer allows for the determination of whether or not narrowband ingress exists within the signal received by the equalizer. For example, analysis of the signal output from the equalizer provides for determination of the overall frequency response of the equalizer. In addition, analysis of the respective equalizer coefficients within one or both of the FFE and the DFE of the equalizer may be used to determine the overall frequency response of the equalizer. Narrowband ingress may be identified when the combination of the FFE (having a notch therein) and the DFE provides for an overall flat frequency response.
摘要翻译： 使用均衡器抽头的窄带入口估计和表征。 实现包括前馈均衡器（FFE）和判决反馈均衡器（DFE）的均衡器来处理输入信号从而产生输出信号。 对包括均衡器的FFE和DFE的均衡器的频率响应的分析允许确定在均衡器接收到的信号内是否存在窄带入口。 例如，从均衡器输出的信号的分析提供了均衡器的总频率响应的确定。 此外，可以使用均衡器的FFE和DFE中的一个或两个内的相应均衡器系数的分析来确定均衡器的总体频率响应。 当FFE（其中有凹口）和DFE的组合提供整体平坦的频率响应时，可以识别窄带入口。
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