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41. 发明授权

US09160459B2 Equalization signal processor, optical receiver including the same, and method for equalization signal processing 有权
标题翻译：均衡信号处理器，包括相同的光接收机以及均衡信号处理方法
公开(公告)号：US09160459B2
公开(公告)日：2015-10-13
申请号：US14362784
申请日：2011-12-07
申请人： Manabu Arikawa , Daisaku Ogasahara , Emmanuel Le Taillandier De Gabory , Kiyoshi Fukuchi
发明人： Manabu Arikawa , Daisaku Ogasahara , Emmanuel Le Taillandier De Gabory , Kiyoshi Fukuchi
IPC分类号： H03H7/30 , H04B10/61 , H04B10/079
CPC分类号： H04B10/6162 , H04B10/0795 , H04B10/616
摘要： It becomes difficult to perform the optimum equalization signal processing in coherent receiving systems if a channel response in an optical fiber transmission line includes a factor without temporal centrosymmetry, therefore, an equalization signal processor according to an exemplary aspect of the invention includes an equalization filter means configured to receive digital signals by coherent receiving systems; a coefficient control means configured to control coefficients defining characteristics of the equalization filter means; a significant coefficient holding means configured to hold significant coefficients of significant values among initial values of the coefficients; a significant coefficient positioning means configured to determine a significant coefficient position, a position of the significant coefficients in the initial values, so that equalization characteristics of the equalization filter means may be optimized; and a significant coefficient setting means configured to allocate the significant coefficients to the significant coefficient position.
摘要翻译：如果光纤传输线路中的信道响应包含没有时间中心对称性的因素，则在相干接收系统中执行最佳均衡信号处理变得困难，因此，根据本发明示例性方面的均衡信号处理器包括均衡滤波器装置被配置为通过相干接收系统接收数字信号; 系数控制装置，被配置为控制限定所述均衡滤波器装置的特性的系数; 有效系数保持装置，被配置为在系数的初始值中保持有效值的有效系数; 确定有效系数位置的有效系数定位装置，初始值中有效系数的位置，使均衡滤波器装置的均衡特性可以被优化; 以及重要系数设定装置，被配置为将有效系数分配给有效系数位置。

42. 发明授权

US09143369B2 Adaptive backchannel equalization 有权
标题翻译：自适应反向信道均衡
公开(公告)号：US09143369B2
公开(公告)日：2015-09-22
申请号：US13897947
申请日：2013-05-20
申请人： INTEL CORPORATION
发明人： Yun He , Sanjib Sarkar
IPC分类号： H03H7/30 , H03H7/40 , H03K5/159 , H04L25/03
CPC分类号： H04L25/03878 , H04L25/03343
摘要： Techniques for adaptive backchannel equalization. A total equalization value is determined over a preselected training period. A total balance equalization value is determined over the preselected training period. A transmitter equalization coefficient is determined based on the total equalization value and the total balance equalization value. Data is transmitted over a serial link using the transmitter equalization coefficient.
摘要翻译：自适应反向信道均衡技术。在预选的训练期间确定总均衡值。在预选的训练期间确定总平衡均衡值。基于总均衡值和总平衡均衡值来确定发射机均衡系数。使用发射机均衡系数通过串行链路传输数据。

43. 发明授权

US09130810B2 OFDM communications methods and apparatus 有权
公开(公告)号：US09130810B2
公开(公告)日：2015-09-08
申请号：US09931469
申请日：2001-08-16
申请人： Rajiv Laroia , Junyi Li
发明人： Rajiv Laroia , Junyi Li
IPC分类号： H04J11/00 , H04J1/00 , H04B1/00 , H03H7/30 , H04W72/02 , H04L27/26 , H04L5/00 , H04L5/02
CPC分类号： H04L27/2626 , H04L5/0012 , H04L5/0039 , H04L5/0041 , H04L5/0048 , H04L5/023 , H04L27/2602 , H04L27/2605 , H04L27/2614 , H04L27/2643 , H04L27/2647
摘要： OFDM signal communication methods and apparatus are described. In accordance with the invention OFDM signals are generated in the time domain with symbols being mapped to specific points in time. Training symbols may be included in the transmitted OFDM signal to facilitate symbol recovery. An exemplary receiver of the invention receives the OFDM signal from the communications channel, converts it into the frequency domain, and then filters it in the frequency domain to eliminate tones corresponding to other users. The filtered signal free of MAC interference is then converted into the time domain where channel estimation and compensation operations are performed. After channel compensation symbol recovery is performed in the time domain.

44. 发明授权

US09049069B2 Sparse equalizer system 有权
标题翻译：稀疏均衡系统
公开(公告)号：US09049069B2
公开(公告)日：2015-06-02
申请号：US13848169
申请日：2013-03-21
申请人： BROADCOM CORPORATION
发明人： Thomas J. Kolze , Richard Stephen Prodan
IPC分类号： H03H7/30 , H04L25/03
CPC分类号： H04L25/03885 , H04L25/03343 , H04L25/03987 , H04L2025/03426 , H04L2025/03471 , H04L2025/03566
摘要： A sparse equalizer system is disclosed. One or more multiple tapped delay lines (e.g., equalizers and/or pre-equalizers) are implemented to service one or more respective channels with which a communication device operates to support communications with at least one other communication device. Adaptive selection of which subsets of taps of the one or more multiple tapped delay lines is made to control those particular taps of which contribute to one or more subsequent slicer inputs. Those taps which are not currently operating to contribute to the slicer input may undergo processing, updating, etc. in parallel with or simultaneously with the processing of a signal to generate the outputs to be provided to the one or more subsequent slicers.
摘要翻译：公开了稀疏均衡器系统。实现一个或多个多个抽头延迟线（例如，均衡器和/或预均衡器）来服务一个或多个相应的通道，通信设备利用这些通道运行以支持与至少一个其他通信设备的通信。对一个或多个多个抽头延迟线的抽头子集进行自适应选择，以控制这些特定抽头有助于一个或多个后续限幅器输入。那些当前不工作以对切片机输入贡献的抽头可以与信号的处理并行或同时处理，更新等，以产生要提供给一个或多个后续限幅器的输出。

45. 发明授权

US09049068B1 Multipath continuous time linear equalizer with allpass filter 有权
标题翻译：多路径连续时间线性均衡器，带全通滤波器
公开(公告)号：US09049068B1
公开(公告)日：2015-06-02
申请号：US13966809
申请日：2013-08-14
申请人： Marvell International Ltd.
发明人： Sasan Cyrusian
IPC分类号： H03H7/30 , H04L25/03
CPC分类号： H04L25/0272 , H04L25/0292 , H04L25/03878
摘要： An equalizer includes a first module and a second module. The first module is configured to receive a differential input signal, perform low pass filtering on the differential input signal to generate a low pass differential input signal, and perform high pass filtering on the differential input signal to generate a high pass differential input signal. The second module is configured to receive the low pass differential input signal and the high pass differential input signal and generate a differential output signal based on a combination of the low pass differential input signal and the high pass differential input signal.
摘要翻译：均衡器包括第一模块和第二模块。第一模块被配置为接收差分输入信号，对差分输入信号执行低通滤波以产生低通差分输入信号，并对差分输入信号执行高通滤波以产生高通差分输入信号。第二模块被配置为接收低通差分输入信号和高通差分输入信号，并且基于低通差分输入信号和高通差分输入信号的组合产生差分输出信号。

46. 发明授权

US09031124B1 Scheme for generating hypothesis and estimating a carrier frequency offset in a receiver 有权
标题翻译：用于产生假设并估计接收机中的载波频率偏移的方案
公开(公告)号：US09031124B1
公开(公告)日：2015-05-12
申请号：US14185933
申请日：2014-02-21
申请人： Saankhya Labs Private Limited
发明人： Shrinivas Bhat , Niranjan Mylarappa Gowda
IPC分类号： H03H7/30 , H04L27/01 , H04L25/03
CPC分类号： H04L27/0014 , H04L2027/0034 , H04L2027/0095
摘要： A method of generating a hypothesis and estimating a CFO includes receiving a signal including a set of radio frames, dividing each received radio frame of the set into a set of received sub-sequences, dividing, each of reference radio frames from a reference signal stored in the receiver into a set of reference sub-sequences, correlating the set of received sub-sequences with the set of reference sub-sequences to obtain a set of correlation values, generating, a first value set and a second value set of hypothesis based on the correlation values, generating a first and a second hypothesis based on the first value and the second value set, and averaging the first and the second hypothesis to obtain an averaged hypothesis, performing a DFT on the averaged hypothesis to obtain a DFT sequence, determining a peak position of the DFT sequence, and estimating the CFO based on the peak position.
摘要翻译：产生假设并估计CFO的方法包括：接收包括一组无线电帧的信号，将所述集合的每个接收的无线电帧划分为一组接收的子序列，将参考无线电帧中的每一个与存储的参考信号进行分割在所述接收机中将所述参考子序列集合到所述一组参考子序列中，将所述一组接收的子序列与所述一组参考子序列相关联以获得一组相关值，生成基于假设的第一值集合和第二值集合根据所述相关值，基于所述第一值和所述第二值集合生成第一假设和第二假设，并且对所述第一和第二假设进行平均以获得平均假设，对所述平均假设执行DFT以获得DFT序列，确定DFT序列的峰值位置，以及基于峰值位置估计CFO。

47. 发明授权

US09025892B1 Data record compression with progressive and/or selective decomposition 有权
标题翻译：使用渐进和/或选择性分解的数据记录压缩
公开(公告)号：US09025892B1
公开(公告)日：2015-05-05
申请号：US14557900
申请日：2014-12-02
申请人： QBASE, LLC
发明人： Scott Lightner , Franz Weckesser , Bryan Zimmerman
IPC分类号： G06K9/36 , G06F7/00 , G06F17/30 , G06T9/00 , H03H7/30
CPC分类号： G06F17/30153 , G06F17/30 , G06F17/30067 , G06F17/30292 , G06F17/30339 , G06F17/30424 , G06F17/30501 , G06F17/30864 , G06T9/00 , H03H7/30 , H03M7/30 , H03M7/3077 , H03M7/6088
摘要： Disclosed herein are systems and methods for compressing structured or semi-structured data in a horizontal manner achieving compression ratios similar to vertical compression. Collections include structured or semi-structured data include a number of fields and are described using a schema. Fields include information having semantic similarity and are compressed using methods suitable for compressing the type of data. Data of a collection is compressed after fragmentation or may be normalized prior to compression. Data with semantic similarity is compressed using token tables and/or n-gram tables, where higher weighted, consisting of the product of frequency and length, occurring values may be stored in the lower numbered indices of the data table. Records include record descriptor bytes, field descriptor bytes, zero or more array descriptor bytes, zero or more object descriptor bytes, or bytes representing the data associated with the record. Data is indexed or compressed by a suitable module.
摘要翻译：本文公开了用于以水平方式压缩结构化或半结构化数据的系统和方法，其实现类似于垂直压缩的压缩比。集合包括结构化或半结构化数据包括多个字段，并使用模式进行描述。字段包括具有语义相似性的信息，并使用适合于压缩数据类型的方法进行压缩。集合的数据在分段之后被压缩，或者可以在压缩之前被归一化。使用令牌表和/或n-gram表压缩具有语义相似性的数据，其中由频率和长度的乘积组成的较高加权可以存储在数据表的较低编号的索引中。记录包括记录描述符字节，字段描述符字节，零个或多个数组描述符字节，零个或多个对象描述符字节或表示与记录相关联的数据的字节。数据由合适的模块索引或压缩。

48. 发明授权

US09008165B2 Digital phase equalizer for serial link receiver and method thereof 有权
标题翻译：串行接收机数字相位均衡器及其方法
公开(公告)号：US09008165B2
公开(公告)日：2015-04-14
申请号：US13347888
申请日：2012-01-11
申请人： Chi-Liang Lin
发明人： Chi-Liang Lin
IPC分类号： H03H7/30 , H04L25/03
CPC分类号： H04L25/03012
摘要： An apparatus of automatic power control for burst mode laser transmitter and method are provided. In one implementation a method includes: pushing a first multi-bit data into a data memory; modifying the data memory to remove a condition of frequent transition in the data memory, if the condition of frequent transition is found; establishing a list of indices pointing to data transition of the data memory; and sequentially examining a respective run length of the data indexed by each entry in the list, modifying the associated data to lengthen the respective run length if the respective run length is too short, modifying the associated data to shorten the respective run length if the respective run length is too long, and outputting a second multi-bit data by taking data from the data memory.
摘要翻译：提供了一种用于突发模式激光发射机的自动功率控制装置和方法。在一个实现中，一种方法包括：将第一多位数据推送到数据存储器中; 如果找到频繁转换的条件，修改数据存储器以消除数据存储器中频繁转换的情况; 建立指向数据存储器的数据转换的索引列表; 并依次检查由列表中的每个条目索引的数据的相应游程长度，如果相应的游程长度太短，则修改相关数据以延长相应的游程长度，如果相应的游程长度相对较短，则修改相关联的数据以缩短相应的游程长度运行长度太长，并且通过从数据存储器获取数据来输出第二多位数据。

49. 发明授权

US08995519B2 Adaptive equaliser with asynchronous detection and inhibit signal generator 有权
标题翻译：具有异步检测和禁止信号发生器的自适应均衡器
公开(公告)号：US08995519B2
公开(公告)日：2015-03-31
申请号：US13876821
申请日：2010-10-15
申请人： Tommaso Foggi , Giulio Colavolpe
发明人： Tommaso Foggi , Giulio Colavolpe
IPC分类号： H03H7/30 , H04L27/01 , H04L25/03
CPC分类号： H04L27/01 , H04L25/0305 , H04L2025/03694
摘要： Generating updated coefficients for an adaptive equalizer involves generating phase tracking information using asynchronous detection strategy (ADS) based on resolved data, and equalized signals, and estimating a phase corrected error based on the equalized signals, the phase tracking information and the resolved data. An inhibit signal is generated to inhibit updating of the equalization coefficients, the inhibit signal representing a likelihood of the phase corrected error being accurate, determined according to the phase corrected error, and the equalized signals. The equalization coefficients for the equalizer are adapted based on the received signals, and on the phase corrected error, and the adapting is inhibited according to the inhibit signal. Compared to conventional ADS, the new combination with the inhibit signal can enable improved convergence of coefficient adaptation. This is particularly useful for coherent receivers for optical systems.
摘要翻译：生成用于自适应均衡器的更新系数涉及使用基于解析数据和均衡信号的异步检测策略（ADS）产生相位跟踪信息，并且基于均衡信号，相位跟踪信息和解析数据来估计相位校正误差。产生禁止信号以禁止均衡系数的更新，根据相位校正误差确定相位校正误差准确的可能性的禁止信号和均衡信号。均衡器的均衡系数基于接收信号和相位校正误差进行调整，根据禁止信号抑制适配。与常规ADS相比，具有抑制信号的新组合可以改善系数适应的收敛性。这对于光学系统的相干接收机特别有用。

50. 发明授权

US08976852B2 Inter symbol interference reduction by applying turbo equalization mode 有权
标题翻译：通过应用turbo均衡模式来进行码间干扰减少
公开(公告)号：US08976852B2
公开(公告)日：2015-03-10
申请号：US14118127
申请日：2011-05-19
申请人： Jinliang Huang , Tore Mikael André
发明人： Jinliang Huang , Tore Mikael André
IPC分类号： H03H7/30 , H03H7/40 , H03K5/159 , H04L25/03 , H03M13/29 , H03M13/37 , H03M13/00 , H04L1/00 , H04L1/20 , H04L27/38 , H03M13/09
CPC分类号： H04L25/03057 , H03M13/09 , H03M13/2957 , H03M13/2975 , H03M13/3715 , H03M13/612 , H03M13/6331 , H03M13/6525 , H04L1/0036 , H04L1/005 , H04L1/206 , H04L25/03006 , H04L25/03171 , H04L25/03955 , H04L27/38 , H04L2025/03547
摘要： The present disclosure relates to a receiving node, and to a related method for determining when to apply a turbo equalization mode to compensate for Inter-Symbol Interference in a radio signal received over a radio channel from a transmitting node. The method comprises decoding the received radio signal into a decoded signal, determining a current error level in the decoded signal, predicting a turbo equalization gain based on instantaneous channel information of the radio channel and deciding whether to apply the turbo equalization mode depending on the predicted turbo equalization gain and the determined current error level in the decoded signal.
摘要翻译：本公开涉及接收节点，以及一种用于确定何时应用turbo均衡模式以补偿通过无线电信道从发射节点接收的无线电信号中的符号间干扰的相关方法。该方法包括将接收到的无线电信号解码为解码信号，确定解码信号中的当前误差电平，基于无线电信道的瞬时信道信息预测turbo均衡增益，并根据预测值决定是否应用turbo均衡模式 turbo均衡增益和解码信号中确定的电流误差电平。

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