公开(公告)号：US08429498B1

公开(公告)日：2013-04-23

申请号：US12728289

申请日：2010-03-22

申请人： Micha Anholt ,  Naftali Sommer ,  Ronen Dar ,  Uri Perlmutter ,  Tal Inbar

发明人： Micha Anholt ,  Naftali Sommer ,  Ronen Dar ,  Uri Perlmutter ,  Tal Inbar

IPC分类号： G11C29/00

CPC分类号： G06F11/1048 ,  G11C2029/0411

摘要： A decoding apparatus includes a decoder and a control unit. The decoder includes circuitry that is configured to decode an Error Correction Code (ECC) by operating in one of a first operational mode having a first power consumption, and a second operational mode, in which at least part of the circuitry that is active during the first operational mode is deactivated and which has a second power consumption that is lower than the first power consumption. The control unit is configured to evaluate a criterion with respect to an input code word, to select one of the first and second operational modes responsively to the criterion, and to invoke the decoder to decode the input code word using the selected operational mode.

摘要翻译： 解码装置包括解码器和控制单元。 解码器包括经配置以通过以具有第一功率消耗的第一操作模式和第二操作模式之一进行操作来解码错误校正码（ECC）的电路，其中在该期间内的有效电路的至少一部分 第一操作模式被禁用并且具有低于第一功率消耗的第二功率消耗。 控制单元被配置为评估关于输入代码字的标准，以响应于该标准选择第一和第二操作模式中的一个，并且使用所选择的操作模式调用解码器对输入的代码字进行解码。

公开(公告)号：US08484544B2

公开(公告)日：2013-07-09

申请号：US13590565

申请日：2012-08-21

申请人： Micha Anholt ,  Naftali Sommer ,  Gil Semo ,  Tal Inbar

发明人： Micha Anholt ,  Naftali Sommer ,  Gil Semo ,  Tal Inbar

IPC分类号： H03M13/00

CPC分类号： G06F11/1076 ,  H03M13/03 ,  H03M13/1525 ,  H03M13/45 ,  H03M13/617

摘要： Methods for Error Correction Code (ECC) decoding include producing syndromes from a set of bits, which represent data that has been encoded with the ECC. An Error Locator Polynomial (ELP) is generated based on the syndromes. At least some of the ELP roots are identified, and the errors indicated by these roots are corrected. Each syndrome may be produced by applying to the bits vector operations in a vector space. Each syndrome is produced by applying vector operations using a different basis of the vector space. The ELP may be evaluated on a given field element by operating on ELP coefficients using serial multipliers, wherein each serial multiplier performs a sequence of multiplication cycles and produces an interim result in each cycle. Responsively to detecting at least one interim result indicating that the given element is not an ELP root, the multiplication cycles are terminated before completion of the sequence.

公开(公告)号：US20120317457A1

公开(公告)日：2012-12-13

申请号：US13590565

申请日：2012-08-21

申请人： Micha Anholt ,  Naftali Sommer ,  Gil Semo ,  Tal Inbar

发明人： Micha Anholt ,  Naftali Sommer ,  Gil Semo ,  Tal Inbar

IPC分类号： H03M13/29 ,  G06F11/10

CPC分类号： G06F11/1076 ,  H03M13/03 ,  H03M13/1525 ,  H03M13/45 ,  H03M13/617

摘要： Methods for Error Correction Code (ECC) decoding include producing syndromes from a set of bits, which represent data that has been encoded with the ECC. An Error Locator Polynomial (ELP) is generated based on the syndromes. At least some of the ELP roots are identified, and the errors indicated by these roots are corrected. Each syndrome may be produced by applying to the bits vector operations in a vector space. Each syndrome is produced by applying vector operations using a different basis of the vector space. The ELP may be evaluated on a given field element by operating on ELP coefficients using serial multipliers, wherein each serial multiplier performs a sequence of multiplication cycles and produces an interim result in each cycle. Responsively to detecting at least one interim result indicating that the given element is not an ELP root, the multiplication cycles are terminated before completion of the sequence.

摘要翻译： 用于纠错码（ECC）解码的方法包括从表示已经用ECC编码的数据的一组位产生综合征。 错误定位器多项式（ELP）是基于综合征产生的。 识别至少一些ELP根，并校正由这些根指示的错误。 可以通过应用向量空间中的比特向量操作来产生每个综合征。 通过使用向量空间的不同基础应用向量运算来产生每个综合征。 可以通过使用串行乘法器对ELP系数进行操作，在给定的场元件上评估ELP，其中每个串行乘法器执行乘法周期序列，并在每个周期中产生中间结果。 响应于检测至少一个中期结果，指示给定的元素不是ELP根，在完成序列之前终止乘法循环。

公开(公告)号：US08327242B1

公开(公告)日：2012-12-04

申请号：US12419304

申请日：2009-04-07

申请人： Micha Anholt ,  Naftali Sommer ,  Gil Semo ,  Tal Inbar

发明人： Micha Anholt ,  Naftali Sommer ,  Gil Semo ,  Tal Inbar

IPC分类号： H03M13/00

CPC分类号： G06F11/1076 ,  H03M13/03 ,  H03M13/1525 ,  H03M13/45 ,  H03M13/617

摘要： Methods for Error Correction Code (ECC) decoding include producing syndromes from a set of bits, which represent data that has been encoded with the ECC. An Error Locator Polynomial (ELP) is generated based on the syndromes. At least some of the ELP roots are identified, and the errors indicated by these roots are corrected. Each syndrome may be produced by applying to the bits vector operations in a vector space. Each syndrome is produced by applying vector operations using a different basis of the vector space. The ELP may be evaluated on a given field element by operating on ELP coefficients using serial multipliers, wherein each serial multiplier performs a sequence of multiplication cycles and produces an interim result in each cycle. Responsively to detecting at least one interim result indicating that the given element is not an ELP root, the multiplication cycles are terminated before completion of the sequence.

摘要翻译： 用于纠错码（ECC）解码的方法包括从表示已经用ECC编码的数据的一组位产生综合征。 错误定位器多项式（ELP）是基于综合征产生的。 识别至少一些ELP根，并校正由这些根指示的错误。 可以通过应用向量空间中的比特向量操作来产生每个综合征。 通过使用向量空间的不同基础应用向量运算来产生每个综合征。 可以通过使用串行乘法器对ELP系数进行操作，在给定的场元件上评估ELP，其中每个串行乘法器执行乘法周期序列，并在每个周期中产生中间结果。 响应于检测至少一个中期结果，指示给定的元素不是ELP根，在完成序列之前终止乘法循环。

公开(公告)号：US08601352B1

公开(公告)日：2013-12-03

申请号：US12843029

申请日：2010-07-25

申请人： Micha Anholt ,  Naftali Sommer ,  Tal Inbar

发明人： Micha Anholt ,  Naftali Sommer ,  Tal Inbar

IPC分类号： G06F11/00

CPC分类号： G06F11/10 ,  H03M13/1105 ,  H03M13/1111 ,  H03M13/1114 ,  H03M13/1137 ,  H03M13/114 ,  H03M13/116 ,  H03M13/3723 ,  H03M13/618 ,  H03M13/6362 ,  H03M13/6393

摘要： A method includes accepting a definition of a mother Error Correction Code (ECC) that is represented by a set of parity check equations and includes first code words, and a definition of a punctured ECC that includes second code words and is derived from the mother ECC by removal of one or more of the parity check equations and removal of one or more punctured check symbols selected from among check symbols of the first code words. A mother decoder, which is designed to decode the mother ECC by exchanging messages between symbol nodes and check nodes in accordance with a predefined interconnection scheme that represents the mother ECC, is provided. An input code word of the punctured ECC is decoded using the mother decoder by initializing one or more of the symbol nodes and controlling one or more of the messages, and while retaining the interconnection scheme.

公开(公告)号：US08578243B2

公开(公告)日：2013-11-05

申请号：US13565122

申请日：2012-08-02

申请人： Naftali Sommer ,  Micha Anholt ,  Oren Golov ,  Uri Perlmutter ,  Shai Winter

发明人： Naftali Sommer ,  Micha Anholt ,  Oren Golov ,  Uri Perlmutter ,  Shai Winter

IPC分类号： G06F11/00

CPC分类号： G06F11/1048

摘要： A method for data storage includes defining a set of scrambling sequences, each sequence including bits in respective bit positions having bit values, such that a distribution of the bit values in any give bit position satisfies a predefined statistical criterion. Each data word is scrambled using a respective scrambling sequence selected from the set. The scrambled data words are stored in the memory device.

摘要翻译： 一种用于数据存储的方法包括定义一组加扰序列，每个序列包括具有比特值的相应比特位置中的比特，使得任何给定比特位置中的比特值的分布满足预定义的统计标准。 使用从集合中选择的相应加扰序列对每个数据字进行加扰。 加扰的数据字被存储在存储器件中。

公开(公告)号：US08369141B2

公开(公告)日：2013-02-05

申请号：US12522175

申请日：2008-03-11

申请人： Naftali Sommer ,  Ofir Shalvi ,  Uri Perlmutter ,  Oren Golov ,  Eyal Gurgi ,  Micha Anholt ,  Dotan Sokolov

发明人： Naftali Sommer ,  Ofir Shalvi ,  Uri Perlmutter ,  Oren Golov ,  Eyal Gurgi ,  Micha Anholt ,  Dotan Sokolov

IPC分类号： G11C11/34 ,  G11C16/04

CPC分类号： G11C16/04 ,  G11C8/20 ,  G11C11/5642 ,  G11C16/20 ,  G11C16/28 ,  G11C2211/5634

摘要： A method for operating a memory (28) that includes a plurality of analog memory cells (32) includes storing data in the memory by writing first storage values to the cells. Second storage values are read from the cells, and a Cumulative Distribution Function (CDF) of the second storage values is estimated. The estimated CDF is processed so as to compute one or more thresholds. A memory access operation is performed on the cells using the one or more thresholds.

公开(公告)号：US08713330B1

公开(公告)日：2014-04-29

申请号：US12607078

申请日：2009-10-28

申请人： Naftali Sommer ,  Micha Anholt ,  Oren Golov ,  Uri Perlmutter ,  Shai Winter

发明人： Naftali Sommer ,  Micha Anholt ,  Oren Golov ,  Uri Perlmutter ,  Shai Winter

IPC分类号： H04L9/00 ,  G06F15/16

CPC分类号： G06F11/1048

摘要： A method for data storage includes scrambling data for storage in a memory device using a given scrambling seed. A statistical distribution of the scrambled data is assessed, and a measure of randomness of the statistical distribution is computed. A scrambling configuration of the data is modified responsively to the measure of randomness, and the data having the modified scrambling configuration is stored in the memory device.

摘要翻译： 一种用于数据存储的方法包括使用给定的加扰种子对存储在存储设备中的数据进行加扰。 评估加扰数据的统计分布，并计算统计分布的随机性度量。 响应于随机性的度量修改数据的加扰配置，并且具有修改的加扰配置的数据被存储在存储器件中。

公开(公告)号：US08261159B1

公开(公告)日：2012-09-04

申请号：US12607085

申请日：2009-10-28

申请人： Naftali Sommer ,  Micha Anholt ,  Oren Golov ,  Uri Perlmutter ,  Shai Winter ,  Gil Semo

发明人： Naftali Sommer ,  Micha Anholt ,  Oren Golov ,  Uri Perlmutter ,  Shai Winter ,  Gil Semo

IPC分类号： G06F11/00

CPC分类号： G06F11/1048

摘要： A method for data storage includes defining a set of scrambling sequences, each sequence including bits in respective bit positions having bit values, such that a distribution of the bit values in any give bit position satisfies a predefined statistical criterion. Each data word is scrambled using a respective scrambling sequence selected from the set. The scrambled data words are stored in the memory device.

摘要翻译： 一种用于数据存储的方法包括定义一组加扰序列，每个序列包括具有比特值的相应比特位置中的比特，使得任何给定比特位置中的比特值的分布满足预定义的统计标准。 使用从集合中选择的相应加扰序列对每个数据字进行加扰。 加扰的数据字被存储在存储器件中。

公开(公告)号：US20120297271A1

公开(公告)日：2012-11-22

申请号：US13565122

申请日：2012-08-02

申请人： Naftali Sommer ,  Micha Anholt ,  Oren Golov ,  Uri Perlmutter ,  Shai Winter

发明人： Naftali Sommer ,  Micha Anholt ,  Oren Golov ,  Uri Perlmutter ,  Shai Winter

IPC分类号： G06F12/14 ,  G06F11/08

CPC分类号： G06F11/1048

摘要： A method for data storage includes defining a set of scrambling sequences, each sequence including bits in respective bit positions having bit values, such that a distribution of the bit values in any give bit position satisfies a predefined statistical criterion. Each data word is scrambled using a respective scrambling sequence selected from the set. The scrambled data words are stored in the memory device.

摘要翻译： 一种用于数据存储的方法包括定义一组加扰序列，每个序列包括具有比特值的相应比特位置中的比特，使得任何给定比特位置中的比特值的分布满足预定义的统计标准。 使用从集合中选择的相应加扰序列对每个数据字进行加扰。 加扰的数据字被存储在存储器件中。