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1. 发明授权

US07492703B2 Noise analysis in a communication system 有权
标题翻译：通信系统中的噪声分析
公开(公告)号：US07492703B2
公开(公告)日：2009-02-17
申请号：US10273561
申请日：2002-10-18
申请人： Itay Lusky , Daniel Wajcer , Yosef Bendel , Yigal Bitran , Naftali Sommer , Ofir Shalvi , Zvi Reznic , Ariel Yagil , Ran Senderovitz , Eli Haim
发明人： Itay Lusky , Daniel Wajcer , Yosef Bendel , Yigal Bitran , Naftali Sommer , Ofir Shalvi , Zvi Reznic , Ariel Yagil , Ran Senderovitz , Eli Haim
IPC分类号： H04J11/00
CPC分类号： H04L1/20 , H04L1/0001 , H04L1/0003
摘要： A system is provided to automatically estimate performance of a receiver for receiving input signals, the input signals having a carrier frequency and a baud rate, from a channel in a communication system and the effect of highly correlated noise cancellation on performance of the receiver, while no active transmission is occurring on the channel, comprising: a digital front end in the receiver for receiving samples of the input signals; a predictor coupled to the digital front end for predicting highly correlated noise in a second sample of the input signal; and a subtraction unit coupled to the predictor for subtracting the predictor output from the second sample to determine residual noise in the second sample. Other systems and methods are disclosed.
摘要翻译：提供一种系统，用于自动估计用于从通信系统中的信道接收输入信号，输入信号具有载波频率和波特率的接收机的性能以及高度相关的噪声消除对接收机性能的影响，同时在频道上没有发生主动传输，包括：接收机中的数字前端，用于接收输入信号的采样; 耦合到所述数字前端的预测器，用于预测所述输入信号的第二样本中的高度相关噪声; 以及减法单元，耦合到所述预测器，用于从所述第二样本减去所述预测器输出，以确定所述第二样本中的残余噪声。公开了其它系统和方法。

2. 发明授权

US07197067B2 Parameter selection in a communication system 有权
标题翻译：通信系统中的参数选择
公开(公告)号：US07197067B2
公开(公告)日：2007-03-27
申请号：US10273563
申请日：2002-10-18
申请人： Itay Lusky , Daniel Wajcer , Yosef Bendel , Yigal Bitran , Naftali Sommer , Ofir Shalvi , Zvi Reznic , Ariel Yagil , Ran Senderovitz , Eli Haim
发明人： Itay Lusky , Daniel Wajcer , Yosef Bendel , Yigal Bitran , Naftali Sommer , Ofir Shalvi , Zvi Reznic , Ariel Yagil , Ran Senderovitz , Eli Haim
IPC分类号： H04B17/00
CPC分类号： H04L1/20 , H04L1/0001 , H04L1/0003 , H04L1/0017 , H04L1/0019
摘要： A method is provided for automatically optimizing parameter selection in a communication system having one or more channels for transmitting and receiving signals by the steps of: receiving a signal from a channel; characterizing impairments in the channel while gathering statistics using the received signal; analyzing the impairments to obtain recommendations for parameter modifications for improved performance; and modifying the parameters based on the recommendations. Other systems and methods are disclosed.
摘要翻译：提供一种用于通过以下步骤自动优化具有用于发送和接收信号的一个或多个信道的通信系统中的参数选择的方法：从信道接收信号; 在使用接收信号收集统计信息的同时表征信道中的损伤; 分析损伤以获得参数修改的建议，以提高性能; 并根据建议修改参数。公开了其它系统和方法。

3. 发明授权

US07315573B2 Channel monitoring for improved parameter selection in a communication system 有权
标题翻译：通道监控，用于改进通信系统中的参数选择
公开(公告)号：US07315573B2
公开(公告)日：2008-01-01
申请号：US10273556
申请日：2002-10-18
申请人： Itay Lusky , Daniel Wajcer , Yosef Bendel , Yigal Bitran , Naftali Sommer , Ofir Shalvi , Zvi Reznic , Ariel Yagil , Eli Haim
发明人： Itay Lusky , Daniel Wajcer , Yosef Bendel , Yigal Bitran , Naftali Sommer , Ofir Shalvi , Zvi Reznic , Ariel Yagil , Eli Haim
IPC分类号： H04B3/46 , H04B17/00 , H04Q1/20
CPC分类号： H04L1/0001 , H04L1/0003 , H04L1/0017 , H04L1/0019 , H04L1/20 , Y02D50/10
摘要： A method is provided for automatically improving throughput of an active channel in a communication system comprising: receiving input from one or more modules that identify and characterize impairments in the active channel; monitoring the input to track changes in the impairments; and changing channel parameters to improve throughput on the channel based on the changes in the impairments. Other systems and methods are disclosed.
摘要翻译：提供了一种用于自动提高通信系统中的有效信道的吞吐量的方法，包括：从识别并描述有效信道中的损伤的一个或多个模块接收输入; 监测输入以跟踪损伤的变化; 并改变通道参数，以根据损伤的变化改善通道的吞吐量。公开了其它系统和方法。

4. 发明申请

US20080062888A1 Channel Monitoring for Improved Parameter Selection in a Communication System 审中-公开
标题翻译：通道监控用于改进通信系统中的参数选择
公开(公告)号：US20080062888A1
公开(公告)日：2008-03-13
申请号：US11938870
申请日：2007-11-13
申请人： Itay Lusky , Daniel Wajcer , Yosef Bendel , Yigal Bitran , Naftali Sommer , Ofir Shalvi , Zvi Reznic , Ariel Yagil , Eli Haim
发明人： Itay Lusky , Daniel Wajcer , Yosef Bendel , Yigal Bitran , Naftali Sommer , Ofir Shalvi , Zvi Reznic , Ariel Yagil , Eli Haim
IPC分类号： G06F11/00
CPC分类号： H04L1/0001 , H04L1/0003 , H04L1/0017 , H04L1/0019 , H04L1/20 , Y02D50/10
摘要： A method is provided for automatically improving throughput of an active channel in a communication system comprising: receiving input from one or more modules that identify and characterize impairments in the active channel; monitoring the input to track changes in the impairments; and changing channel parameters to improve throughput on the channel based on the changes in the impairments. Other systems and methods are disclosed.
摘要翻译：提供了一种用于自动提高通信系统中的有效信道的吞吐量的方法，包括：从识别并描述有效信道中的损伤的一个或多个模块接收输入; 监测输入以跟踪损伤的变化; 并改变通道参数，以根据损伤的变化改善通道的吞吐量。公开了其它系统和方法。

5. 发明授权

US07032159B2 Error correction code parameter selection in a communication system 有权
标题翻译：通信系统中的纠错码参数选择
公开(公告)号：US07032159B2
公开(公告)日：2006-04-18
申请号：US10273562
申请日：2002-10-18
申请人： Itay Lusky , Daniel Wajcer , Yosef Bendel , Yigal Bitran , Naftali Sommer , Ofir Shalvi , Zvi Reznic , Ariel Yagil , Eli Haim
发明人： Itay Lusky , Daniel Wajcer , Yosef Bendel , Yigal Bitran , Naftali Sommer , Ofir Shalvi , Zvi Reznic , Ariel Yagil , Eli Haim
IPC分类号： H03M13/00
CPC分类号： H04L1/20 , H04L1/0001 , H04L1/0003 , H04L1/0017 , H04L1/0019 , Y02D50/10
摘要： A method is disclosed for providing data for automatically estimating channel performance if different parameters of a Reed-Solomon (RS) code are used in a communication system while transmission is occurring in the communication system without changing the current Reed-Solomon (RS) code parameters.
摘要翻译：公开了一种用于提供数据以自动估计信道性能的方法，如果在通信系统中使用里德 - 所罗门（RS）码的不同参数，而在通信系统中发生传输，而不改变当前的里德 - 所罗门（RS）码参数。

6. 发明授权

US07274735B2 Constellation selection in a communication system 有权
标题翻译：通讯系统中的星座选择
公开(公告)号：US07274735B2
公开(公告)日：2007-09-25
申请号：US10273558
申请日：2002-10-18
申请人： Itay Lusky , Daniel Wajcer , Yosef Bendel , Yigal Bitran , Naftali Sommer , Ofir Shalvi , Zvi Reznic , Ariel Yagil , Eli Haim
发明人： Itay Lusky , Daniel Wajcer , Yosef Bendel , Yigal Bitran , Naftali Sommer , Ofir Shalvi , Zvi Reznic , Ariel Yagil , Eli Haim
IPC分类号： H04B3/46
CPC分类号： H04L1/20 , H04L1/0001 , H04L1/0003 , H04L1/0017 , H04L1/0019
摘要： A method is provided to provide data to automatically estimate channel performance in a communication system if a different order constellation is used comprising the steps of: receiving an input signal from the channel; passing the input signal to a slicer having an output signal; determining signal noise by taking the difference between the input signal and output signal; identifying a beginning of a noise event when the signal noise is greater than a predefined first threshold; identifying an end of a noise event when the signal noise is less than a predefined second threshold; and providing for output the beginning of the noise event and the end of the noise event. Other systems and methods are disclosed.
摘要翻译：提供一种提供数据以自动估计通信系统中的信道性能的方法，如果使用不同的订单星座包括以下步骤：从信道接收输入信号; 将输入信号传递到具有输出信号的限幅器; 通过取输入信号和输出信号之差来确定信号噪声; 当信号噪声大于预定义的第一阈值时，识别噪声事件的开始; 当信号噪声小于预定义的第二阈值时，识别噪声事件的结束; 并提供输出噪声事件的开始和噪声事件的结束。公开了其它系统和方法。

7. 发明授权

US07152025B2 Noise identification in a communication system 有权
公开(公告)号：US07152025B2
公开(公告)日：2006-12-19
申请号：US10273555
申请日：2002-10-18
申请人： Itay Lusky , Daniel Wajcer , Yosef Bendel , Yigal Bitran , Naftali Sommer , Ofir Shalvi , Zvi Reznic , Ariel Yagil , Eli Haim
发明人： Itay Lusky , Daniel Wajcer , Yosef Bendel , Yigal Bitran , Naftali Sommer , Ofir Shalvi , Zvi Reznic , Ariel Yagil , Eli Haim
IPC分类号： G06F17/50 , H04L12/43
CPC分类号： H04L1/0001 , H04L1/0003 , H04L1/0017 , H04L1/0019 , H04L1/20
摘要： A method is provided to automatically identify noise events in a channel of a communication system comprising the steps of: receiving an input signal from the channel; determining the mean energy of the input signal; determining the recent energy of the input signal; identifying a beginning of the noise event when the recent energy is greater than the product of the mean energy and a predefined first threshold; identifying an end of a noise event when the recent energy is less that the product of the mean energy and a predefined second threshold; and providing for output the beginning of the noise event and the end of the noise event. Other systems and methods are disclosed.

8. 发明授权

US06751269B1 Bit-interleaved coded modulation for CATV upstream channels 有权
标题翻译： CATV上行通道的位交织编码调制
公开(公告)号：US06751269B1
公开(公告)日：2004-06-15
申请号：US09480418
申请日：2000-01-11
申请人： Ofir Shalvi , Itay Lusky , Zvi Reznic , Daniel Wajcer , Ariel Yagil
发明人： Ofir Shalvi , Itay Lusky , Zvi Reznic , Daniel Wajcer , Ariel Yagil
IPC分类号： H04L2736
CPC分类号： H04L1/0059 , H04L1/0041 , H04L1/0069 , H04L1/0071 , H04L27/36
摘要： A bit-interleaved encoder for a CATV upstream channel is provided having a convolutional encoder for receiving data values, a bit-interleaver interconnected with said encoder, and a symbol mapper interconnected with said bit-interleaver.
摘要翻译：提供了一种用于CATV上行信道的位交织编码器，其具有用于接收数据值的卷积编码器，与所述编码器互连的位交织器和与所述位交织器互连的符号映射器。

9. 发明授权

US08194801B1 Efficient decoding of spatially-multiplexed signals 有权
标题翻译：空间复用信号的有效解码
公开(公告)号：US08194801B1
公开(公告)日：2012-06-05
申请号：US13237942
申请日：2011-09-21
申请人： Yigal Bitran , Itay Lusky , Ariel Yagil
发明人： Yigal Bitran , Itay Lusky , Ariel Yagil
IPC分类号： H04L27/06
CPC分类号： H04L5/0023 , H04L27/22
摘要： A method for communication includes receiving a spatially-multiplexed signal using multiple receivers to produce multiple respective received signals. The spatially-multiplexed signal includes multiple simultaneously-transmitted symbols, which are selected from respective sets of constellation symbols, each constellation symbol representing a respective set of values of a group of data bits.Combinations of the constellation symbols are traversed iteratively. Each combination includes one constellation symbol from each of the sets of the constellation symbols and represents N data bits. The traversed combinations are searched for a combination that matches the received signals.During traversal of the combinations, at least 2N measures of likelihood regarding the values of the data bits represented by each traversed combination are accumulated. The accumulated measures of likelihood are processed to produce soft bit metrics. The values of the data bits carried by the multiple transmitted symbols are reconstructed responsively to the soft bit metrics.
摘要翻译：一种通信方法包括使用多个接收机接收空间复用信号以产生多个相应的接收信号。空间复用信号包括从相应组的星座符号中选择的多个同时发送的符号，每个星座符号表示一组数据比特的相应的一组值。星座符号的组合被迭代地遍历。每个组合包括来自星座符号集合中的每一组的一个星座符号，并且表示N个数据比特。搜索所遍历的组合以获得与接收到的信号相匹配的组合。在组合遍历期间，累积关于由每个遍历组合表示的数据位的值的至少2N次可能性测量。处理可能性的累积度量以产生软比特度量。响应于软比特度量重建由多个发送的符号携带的数据比特的值。

10. 发明授权

US08045652B1 Efficient decoding of spatially-multiplexed signals 有权
标题翻译：空间复用信号的有效解码
公开(公告)号：US08045652B1
公开(公告)日：2011-10-25
申请号：US12029142
申请日：2008-02-11
申请人： Yigal Bitran , Itay Lusky , Ariel Yagil
发明人： Yigal Bitran , Itay Lusky , Ariel Yagil
IPC分类号： H04L27/06
CPC分类号： H04L5/0023 , H04L27/22
摘要： A method for communication includes receiving a spatially-multiplexed signal using multiple receivers to produce multiple respective received signals. The spatially-multiplexed signal includes multiple simultaneously-transmitted symbols, which are selected from respective sets of constellation symbols, each constellation symbol representing a respective set of values of a group of data bits. Combinations of the constellation symbols are traversed iteratively. Each combination includes one constellation symbol from each of the sets of the constellation symbols and represents N data bits. The traversed combinations are searched for a combination that matches the received signals. During traversal of the combinations, at least 2N measures of likelihood regarding the values of the data bits represented by each traversed combination are accumulated. The accumulated measures of likelihood are processed to produce soft bit metrics. The values of the data bits carried by the multiple transmitted symbols are reconstructed responsively to the soft bit metrics.
摘要翻译：一种通信方法包括使用多个接收机接收空间复用信号以产生多个相应的接收信号。空间复用信号包括从相应组的星座符号中选择的多个同时发送的符号，每个星座符号表示一组数据比特的相应的一组值。星座符号的组合被迭代地遍历。每个组合包括来自星座符号集合中的每一组的一个星座符号，并且表示N个数据比特。搜索所遍历的组合以获得与接收到的信号相匹配的组合。在组合遍历期间，累积关于由每个遍历组合表示的数据位的值的至少2N次可能性测量。处理可能性的累积度量以产生软比特度量。响应于软比特度量重建由多个发送的符号携带的数据比特的值。

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