公开(公告)号：US07778314B2

公开(公告)日：2010-08-17

申请号：US11381574

申请日：2006-05-04

申请人： Daniel Wajcer ,  Naftali Sommer ,  Itay Lusky

发明人： Daniel Wajcer ,  Naftali Sommer ,  Itay Lusky

IPC分类号： H04B1/38

CPC分类号： H04M3/34 ,  H04B3/487 ,  H04L25/03057 ,  H04M3/002

摘要： A novel and useful mechanism for the detection and estimation of far-end cross talk (FEXT) caused by transmissions over adjacent wire pairs or cables. The detection and estimation technique of the invention can be used to identify FET impairments in Ethernet and DSL systems. The detection and estimation scheme is performed utilizing an adaptive FEXT canceller filter for detection purposes during normal operation of the system. FEXT filter tap coefficients are determined one at a time using a mechanism shared amongst all taps. Once adapted, the filter coefficients can be used to estimate FEXT strength and to determine spectral measurements of the FEXT impairment noise.

摘要翻译： 一种用于检测和估计由相邻线对或电缆传输引起的远端串扰（FEXT）的新颖有用的机制。 本发明的检测和估计技术可用于识别以太网和DSL系统中的FET损伤。 在系统的正常操作期间，利用自适应FEXT消除器滤波器进行检测和估计方案用于检测目的。 使用在所有抽头之间共享的机制，一次确定FEXT滤波器抽头系数。 一旦适应，滤波器系数可用于估计FEXT强度并确定FEXT损伤噪声的频谱测量。

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。

公开(公告)号：US07257176B2

公开(公告)日：2007-08-14

申请号：US10438400

申请日：2003-05-15

申请人： Naftali Sommer ,  Itay Lusky ,  Lior Ophir

发明人： Naftali Sommer ,  Itay Lusky ,  Lior Ophir

IPC分类号： H04L27/06

CPC分类号： H04B1/7075 ,  H04L2027/0046 ,  H04L2027/0067 ,  H04L2027/0095

摘要： A method provides frequency and phase offset estimation in a SCDMA burst receiver (such as a DOCSIS 2.0 SCDMA burst receiver) by application of the known Least Square (LS) parameter estimation algorithm to a pre-known transmitted sequence, called preamble, in order to optimally characterize the phase and frequency offsets affecting the transmitted data. The LS parameter estimation algorithm is adapted to SCDMA burst receiver specifications by changing index calculations to fit according to SCDMA preamble locations. Improved estimation accuracy can be achieved by using weighted least squares that disregard symbols affected by impulse and burst noise. Weighted least squares can further impart more weight to last symbols to more accurately estimate contemporary impairments. The method is particularly useful for communication systems having large frequency and phase offsets as in the DOCSIS 2.0 SCDMA burst receiver.

摘要翻译： 一种方法通过将已知的最小二乘法（LS）参数估计算法应用于称为前导码的已知传输序列来提供SCDMA突发接收机（例如DOCSIS 2.0 SCDMA突发接收机）中的频率和相位偏移估计，以便 最佳地表征影响传输数据的相位和频率偏移。 LS参数估计算法通过改变索引计算来适应SCDMA突发接收机规范，以适应SCDMA前导码位置。 通过使用忽略受脉冲和突发噪声影响的符号的加权最小二乘法，可以提高估计精度。 加权最小二乘法可进一步赋予最后符号更多的权重以更准确地估计当代障碍。 该方法对于具有大的频率和相位偏移的通信系统特别有用，如DOCSIS 2.0 SCDMA突发接收机。

公开(公告)号：US20070258514A1

公开(公告)日：2007-11-08

申请号：US11381574

申请日：2006-05-04

申请人： Daniel Wajcer ,  Naftali Sommer ,  Itay Lusky

发明人： Daniel Wajcer ,  Naftali Sommer ,  Itay Lusky

IPC分类号： H04L5/16

CPC分类号： H04M3/34 ,  H04B3/487 ,  H04L25/03057 ,  H04M3/002

摘要： A novel and useful mechanism for the detection and estimation of far-end cross talk (FEXT) caused by transmissions over adjacent wire pairs or cables. The detection and estimation technique of the invention can be used to identify FET impairments in Ethernet and DSL systems. The detection and estimation scheme is performed utilizing an adaptive FEXT canceller filter for detection purposes during normal operation of the system. FEXT filter tap coefficients are determined one at a time using a mechanism shared amongst all taps. Once adapted, the filter coefficients can be used to estimate FEXT strength and to determine spectral measurements of the FEXT impairment noise.

摘要翻译： 一种用于检测和估计由相邻线对或电缆传输引起的远端串扰（FEXT）的新颖有用的机制。 本发明的检测和估计技术可用于识别以太网和DSL系统中的FET损伤。 在系统的正常操作期间，利用自适应FEXT消除器滤波器进行检测和估计方案用于检测目的。 使用在所有抽头之间共享的机制，一次确定FEXT滤波器抽头系数。 一旦适应，滤波器系数可用于估计FEXT强度并确定FEXT损伤噪声的频谱测量。

公开(公告)号：US20070230555A1

公开(公告)日：2007-10-04

申请号：US11694942

申请日：2007-03-31

申请人： Amir Peleg ,  Daniel Wajcer ,  Itay Lusky ,  Naftali Sommer ,  Nohik Semel

发明人： Amir Peleg ,  Daniel Wajcer ,  Itay Lusky ,  Naftali Sommer ,  Nohik Semel

IPC分类号： H03K5/159 ,  H03H7/40

CPC分类号： H04B3/48

摘要： A novel apparatus for and method of estimating the cable length of an active network link. The cable diagnostics mechanism of the invention is particularly suited for use in estimating the length of Ethernet network between two edges when the link is active, i.e. data is being transmitted in both directions simultaneously and the transmission of test pulses is not possible. The cable length estimation mechanism of the present invention is based on a well-known property of the spectrum of the insertion loss of the cable, namely, the linear relationship between the attenuation of the cable at a given frequency in decibels and the cable length. Information characterizing this relationship is extracted and used to determine the length of the cable.

摘要翻译： 一种用于估计有源网络链路的电缆长度的新型装置和方法。 本发明的电缆诊断机构特别适用于当链路处于活动状态时估计两个边缘之间的以太网网络的长度，即同时在两个方向上发送数据，并且测试脉冲的传输是不可能的。 本发明的电缆长度估计机构是基于电缆的插入损耗频谱的众所周知的特性，即以给定频率以分贝计的电缆的衰减与电缆长度之间的线性关系。 提取表征该关系的信息，并用于确定电缆的长度。

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。

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.

公开(公告)号：US08694854B1

公开(公告)日：2014-04-08

申请号：US13195852

申请日：2011-08-02

申请人： Ronen Dar ,  Eyal Gurgi ,  Micha Anholt ,  Naftali Sommer

发明人： Ronen Dar ,  Eyal Gurgi ,  Micha Anholt ,  Naftali Sommer

IPC分类号： G11C29/00

CPC分类号： G11C29/52 ,  G11C11/5642 ,  G11C11/5685 ,  G11C29/021 ,  G11C29/028

摘要： A method for data storage includes storing data in analog memory cells by programming the memory cells with respective analog input values. After storing the data, respective analog output values are read from the memory cells using multiple read thresholds, which define multiple ranges of the analog output values. Respective numbers of read errors in the data, corresponding to the analog output values falling in the ranges, are assessed. The stored data is recovered based on respective numbers of the read errors assessed in the ranges.

摘要翻译： 一种用于数据存储的方法包括通过用相应的模拟输入值对存储器单元进行编程来将数据存储在模拟存储器单元中。 在存储数据之后，使用多个读取阈值从存储器单元中读取相应的模拟输出值，该阈值定义了模拟输出值的多个范围。 对与数据范围内的模拟输出值相对应的数据中读取错误的数量进行了评估。 基于在范围内评估的读取错误的相应数量来恢复所存储的数据。

公开(公告)号：US20140059403A1

公开(公告)日：2014-02-27

申请号：US13595669

申请日：2012-08-27

申请人： Naftali Sommer ,  Micha Anholt

发明人： Naftali Sommer ,  Micha Anholt

IPC分类号： H03M13/03 ,  G06F11/10

CPC分类号： G06F11/1012 ,  H03M13/1174 ,  H03M13/1515 ,  H03M13/152 ,  H03M13/19 ,  H03M13/23 ,  H03M13/2909 ,  H03M13/2957 ,  H03M13/6337

摘要： In some embodiments, a method includes accepting a code word of a composite Error Correction Code (ECC), which was produced by encoding data with multiple component ECCs, and which was received with one or more reception parameters. One or more of the component ECCs are decoded, but without fully decoding the code word. The one or more reception parameters are estimated based on the decoded component ECCs. In other embodiments, a method includes accepting a code word of an ECC, which encodes data and which was received with one or more reception parameters. An Error Locator Polynomial (ELP), having one or more roots that indicate respective locations of one or more errors in the code word, is derived from the accepted code word. The one or more reception parameters are estimated based on the ELP.

摘要翻译： 在一些实施例中，一种方法包括接受通过用多个组件ECC编码数据并且被一个或多个接收参数接收的复合错误校正码（ECC）的码字。 一个或多个组件ECC被解码，但没有完全解码码字。 基于解码的组件ECC来估计一个或多个接收参数。 在其他实施例中，一种方法包括接受ECC的代码字，该代码字对数据进行编码并且用一个或多个接收参数接收。 错误定位器多项式（ELP）从识别的代码字导出，具有指示码字中的一个或多个错误的相应位置的一个或多个根。 基于ELP估计一个或多个接收参数。

公开(公告)号：US08645794B1

公开(公告)日：2014-02-04

申请号：US13192495

申请日：2011-07-28

申请人： Avraham Meir ,  Micha Anholt ,  Naftali Sommer ,  Eyal Gurgi

发明人： Avraham Meir ,  Micha Anholt ,  Naftali Sommer ,  Eyal Gurgi

IPC分类号： H03M13/00

CPC分类号： G11C27/005 ,  G06F11/1048 ,  G11C11/5628 ,  G11C16/0483 ,  G11C16/10 ,  G11C2211/5647 ,  G11C2211/5648

摘要： A method for data storage includes, in a first programming phase, storing first data in a group of analog memory cells by programming the memory cells in the group to a set of initial programming levels. In a second programming phase that is subsequent to the first programming phase, second data is stored in the group by: identifying the memory cells in the group that were programmed in the first programming phase to respective levels in a predefined partial subset of the initial programming levels; and programming only the identified memory cells with the second data, so as to set at least some of the identified memory cells to one or more additional programming levels that are different from the initial programming levels.