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1. 发明授权

US08369141B2 Adaptive estimation of memory cell read thresholds 有权
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.

2. 发明申请

US20100091535A1 ADAPTIVE ESTIMATION OF MEMORY CELL READ THRESHOLDS 有权
标题翻译：记忆体读取阈值的自适应估计
公开(公告)号：US20100091535A1
公开(公告)日：2010-04-15
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： G11C27/00 , G11C7/00
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.
摘要翻译：一种用于操作包括多个模拟存储单元（32）的存储器（28）的方法包括：通过向单元写入第一存储值来将数据存储在存储器中。从单元读取第二存储值，并且估计第二存储值的累积分布函数（CDF）。处理估计的CDF以计算一个或多个阈值。使用一个或多个阈值对单元执行存储器存取操作。

3. 发明授权

US08234545B2 Data storage with incremental redundancy 有权
标题翻译：具有增量冗余的数据存储
公开(公告)号：US08234545B2
公开(公告)日：2012-07-31
申请号：US12119069
申请日：2008-05-12
申请人： Ofir Shalvi , Dotan Sokolov , Eyal Gurgi , Oren Golov , Naftali Sommer
发明人： Ofir Shalvi , Dotan Sokolov , Eyal Gurgi , Oren Golov , Naftali Sommer
IPC分类号： G06F11/00
CPC分类号： G06F11/1068 , G11C2029/0411
摘要： A method for operating a memory includes encoding input data with an Error Correction Code (ECC) to produce input encoded data including first and second sections, such that the ECC is decodable based on the first section at a first redundancy, and based on both the first and the second sections at a second redundancy that is higher than the first redundancy.Output encoded data is read and a condition is evaluated. The input data is reconstructed using a decoding level selected, responsively to the condition, from a first level, at which a first part of the output encoded data corresponding to the first section is processed to decode the ECC at the first redundancy, and a second level, at which the first part and a second part of the output encoded data corresponding to the second section are processed jointly to decode the ECC at the second redundancy.
摘要翻译：一种用于操作存储器的方法包括用错误校正码（ECC）对输入数据进行编码以产生包括第一和第二部分的输入编码数据，使得基于第一冗余部分的第一部分可以解码ECC，并且基于两者第一和第二部分具有高于第一冗余的第二冗余。读取输出编码数据并评估条件。输入数据使用从第一级别选择的解码级别来重构，在第一级别处理对应于第一部分的输出编码数据的第一部分被处理以在第一冗余处解码ECC，以及第二级级别，其中对应于第二部分的输出编码数据的第一部分和第二部分共同处理，以在第二冗余处对ECC进行解码。

4. 发明授权

US08060806B2 Estimation of non-linear distortion in memory devices 有权
标题翻译：存储器件非线性失真的估计
公开(公告)号：US08060806B2
公开(公告)日：2011-11-15
申请号：US11995813
申请日：2007-08-27
申请人： Ofir Shalvi , Naftali Sommer , Eyal Gurgi , Oren Golov , Dotan Sokolov
发明人： Ofir Shalvi , Naftali Sommer , Eyal Gurgi , Oren Golov , Dotan Sokolov
IPC分类号： G11C29/00
CPC分类号： G11C11/5621 , G11C16/3418 , G11C27/005
摘要： A method for operating a memory (24) includes storing data in analog memory cells (32) of the memory by writing respective analog values to the analog memory cells. A set of the analog memory cells is identified, including an interfered cell having a distortion that is statistically correlated with the respective analog values of the analog memory cells in the set. A mapping is determined between combinations of possible analog values of the analog memory cells in the set and statistical characteristics of composite distortion levels present in the interfered memory cell. The mapping is applied so as to compensate for the distortion in the interfered memory cell.
摘要翻译：一种用于操作存储器（24）的方法包括通过将相应的模拟值写入模拟存储器单元来将数据存储在存储器的模拟存储器单元（32）中。识别一组模拟存储器单元，包括具有与组中的模拟存储器单元的相应模拟值统计相关的失真的干扰单元。在存在于受干扰存储器单元中的复合失真级的集合和统计特性中的模拟存储器单元的可能模拟值的组合之间确定映射。应用映射以补偿受干扰的存储单元中的失真。

5. 发明申请

US20080282106A1 DATA STORAGE WITH INCREMENTAL REDUNDANCY 有权
标题翻译：数据存储与增量冗余
公开(公告)号：US20080282106A1
公开(公告)日：2008-11-13
申请号：US12119069
申请日：2008-05-12
申请人： Ofir Shalvi , Dotan Sokolov , Eyal Gurgi , Oren Golov , Naftali Sommer
发明人： Ofir Shalvi , Dotan Sokolov , Eyal Gurgi , Oren Golov , Naftali Sommer
IPC分类号： G06F11/16
CPC分类号： G06F11/1068 , G11C2029/0411
摘要： A method for operating a memory includes encoding input data with an Error Correction Code (ECC) to produce input encoded data including first and second sections, such that the ECC is decodable based on the first section at a first redundancy, and based on both the first and the second sections at a second redundancy that is higher than the first redundancy.Output encoded data is read and a condition is evaluated. The input data is reconstructed using a decoding level selected, responsively to the condition, from a first level, at which a first part of the output encoded data corresponding to the first section is processed to decode the ECC at the first redundancy, and a second level, at which the first part and a second part of the output encoded data corresponding to the second section are processed jointly to decode the ECC at the second redundancy.
摘要翻译：一种用于操作存储器的方法包括用错误校正码（ECC）编码输入数据以产生包括第一和第二部分的输入编码数据，使得基于第一冗余部分的第一部分可以解码ECC，并且基于两者第一和第二部分具有高于第一冗余的第二冗余。读取输出编码数据并评估条件。输入数据使用从第一级别选择的解码级别来重构，在第一级别处理对应于第一部分的输出编码数据的第一部分被处理以在第一冗余处解码ECC，以及第二级级别，其中对应于第二部分的输出编码数据的第一部分和第二部分共同处理，以在第二冗余处对ECC进行解码。

6. 发明申请

US20100131826A1 ESTIMATION OF NON-LINEAR DISTORTION IN MEMORY DEVICES 有权
标题翻译：记忆装置中非线性失真的估计
公开(公告)号：US20100131826A1
公开(公告)日：2010-05-27
申请号：US11995813
申请日：2007-08-27
申请人： Ofir Shalvi , Naftali Sommer , Eyal Gurgi , Oren Golov , Dotan Sokolov
发明人： Ofir Shalvi , Naftali Sommer , Eyal Gurgi , Oren Golov , Dotan Sokolov
IPC分类号： H03M13/05 , G06F12/06 , G06F12/00 , G06F11/10 , G06F11/07
CPC分类号： G11C11/5621 , G11C16/3418 , G11C27/005
摘要： A method for operating a memory (24) includes storing data in analog memory cells (32) of the memory by writing respective analog values to the analog memory cells. A set of the analog memory cells is identified, including an interfered cell having a distortion that is statistically correlated with the respective analog values of the analog memory cells in the set. A mapping is determined between combinations of possible analog values of the analog memory cells in the set and statistical characteristics of composite distortion levels present in the interfered memory cell. The mapping is applied so as to compensate for the distortion in the interfered memory cell.
摘要翻译：一种用于操作存储器（24）的方法包括通过将相应的模拟值写入模拟存储器单元来将数据存储在存储器的模拟存储器单元（32）中。识别一组模拟存储器单元，包括具有与组中的模拟存储器单元的相应模拟值统计相关的失真的干扰单元。在存在于受干扰存储器单元中的复合失真级的集合和统计特性中的模拟存储器单元的可能模拟值的组合之间确定映射。应用映射以补偿受干扰的存储单元中的失真。

7. 发明授权

US07924587B2 Programming of analog memory cells using a single programming pulse per state transition 有权
标题翻译：使用每个状态转换的单个编程脉冲对模拟存储器单元进行编程
公开(公告)号：US07924587B2
公开(公告)日：2011-04-12
申请号：US12388528
申请日：2009-02-19
申请人： Uri Perlmutter , Shai Winter , Ofir Shalvi , Eyal Gurgi , Naftali Sommer , Oren Golov
发明人： Uri Perlmutter , Shai Winter , Ofir Shalvi , Eyal Gurgi , Naftali Sommer , Oren Golov
IPC分类号： G11C27/00
CPC分类号： G11C11/5628 , G11C27/005 , G11C29/00
摘要： A method for data storage in analog memory cells includes defining multiple programming states for storing data in the analog memory cells. The programming states represent respective combinations of more than one bit and correspond to respective, different levels of a physical quantity stored in the memory cells. The data is stored in the memory cells by applying to the memory cells programming pulses that cause the levels of the physical quantity stored in the memory cells to transition between the programming states, such that a given transition is caused by only a single programming pulse.
摘要翻译：一种用于在模拟存储单元中进行数据存储的方法包括定义用于在模拟存储器单元中存储数据的多个编程状态。编程状态表示多于一个位的相应组合，并且对应于存储在存储器单元中的物理量的相应不同级别。通过向存储器单元施加编程脉冲将数据存储在存储器单元中，编程脉冲使存储单元中存储的物理量的电平在编程状态之间转变，使得给定的转换仅由单个编程脉冲引起。

8. 发明授权

US08000135B1 Estimation of memory cell read thresholds by sampling inside programming level distribution intervals 有权
标题翻译：通过在编程级别分配间隔内采样来估计存储单元读取阈值
公开(公告)号：US08000135B1
公开(公告)日：2011-08-16
申请号：US12558528
申请日：2009-09-13
申请人： Uri Perlmutter , Shai Winter , Eyal Gurgi , Oren Golov , Micha Anholt
发明人： Uri Perlmutter , Shai Winter , Eyal Gurgi , Oren Golov , Micha Anholt
IPC分类号： G11C16/04
CPC分类号： G11C11/5642 , G11C16/26 , G11C27/005 , G11C2211/5634
摘要： A method for data storage includes storing data in a group of analog memory cells by writing into the memory cells in the group respective storage values, which program each of the analog memory cells to a respective programming state selected from a predefined set of programming states. The programming states include at least first and second programming states, which are applied respectively to first and second subsets of the memory cells, whereby the storage values held in the memory cells in the first and second subsets are distributed in accordance with respective first and second distributions. Respective first and second medians of the first and second distributions are estimated, and a read threshold is calculated based on the first and second medians. The data is retrieved from the analog memory cells in the group by reading the storage values using the calculated read threshold.
摘要翻译：一种用于数据存储的方法包括：通过将组各自的存储值中的每个模拟存储器单元编程为从预定的一组编程状态中选择的各自的编程状态，将数据写入一组模拟存储器单元。编程状态包括至少第一和第二编程状态，其分别应用于存储器单元的第一和第二子集，由此保持在第一和第二子集中的存储单元中的存储值根据相应的第一和第二分布。估计第一和第二分布的相应的第一和第二中值，并且基于第一和第二中心计算读取阈值。通过使用计算的读取阈值读取存储值，从组中的模拟存储器单元检索数据。

9. 发明授权

US08482978B1 Estimation of memory cell read thresholds by sampling inside programming level distribution intervals 有权
标题翻译：通过在编程级别分配间隔内采样来估计存储单元读取阈值
公开(公告)号：US08482978B1
公开(公告)日：2013-07-09
申请号：US13170202
申请日：2011-06-28
申请人： Uri Perlmutter , Shai Winter , Eyal Gurgi , Oren Golov , Micha Anholt
发明人： Uri Perlmutter , Shai Winter , Eyal Gurgi , Oren Golov , Micha Anholt
IPC分类号： G11C11/34
CPC分类号： G11C11/5642 , G11C16/26 , G11C27/005 , G11C2211/5634
摘要： A method for data storage includes storing data in a group of analog memory cells by writing into the memory cells in the group respective storage values, which program each of the analog memory cells to a respective programming state selected from a predefined set of programming states, including at least first and second programming states, which are applied respectively to first and second subsets of the memory cells, whereby the storage values held in the memory cells in the first and second subsets are distributed in accordance with respective first and second distributions. A first median of the first distribution is estimated, and a read threshold, which differentiates between the first and second programming states, is calculated based on the estimated first median. The data is retrieved from the analog memory cells in the group by reading the storage values using the calculated read threshold.
摘要翻译：一种用于数据存储的方法包括：通过将各组存储单元中的每个模拟存储器单元编程为从预定义的编程状态集合中选择的相应编程状态，将组中各存储单元写入存储单元中，将数据存储在一组模拟存储单元中，包括至少第一和第二编程状态，其分别应用于存储器单元的第一和第二子集，由此保持在第一和第二子集中的存储单元中的存储值根据相应的第一和第二分布进行分配。估计第一分布的第一中值，并且基于估计的第一中值来计算区分第一和第二编程状态的读取阈值。通过使用计算的读取阈值读取存储值，从组中的模拟存储器单元检索数据。

10. 发明申请

US20120163080A1 Reducing Distortion Using Joint Storage 有权
标题翻译：使用联合存储减少失真
公开(公告)号：US20120163080A1
公开(公告)日：2012-06-28
申请号：US13412780
申请日：2012-03-06
申请人： Ofir Shalvi , Eyal Gurgi , Uri Perlmutter , Oren Golov
发明人： Ofir Shalvi , Eyal Gurgi , Uri Perlmutter , Oren Golov
IPC分类号： G11C16/04
CPC分类号： G11C11/5628 , G11C16/10 , G11C16/3418
摘要： A method for data storage includes predefining an order of programming a plurality of analog memory cells that are arranged in rows. The order specifies that for a given row having neighboring rows on first and second sides, the memory cells in the given row are programmed only while the memory cells in the neighboring rows on at least one of the sides are in an erased state, and that the memory cells in the given row are programmed to assume a highest programming level, which corresponds to a largest analog value among the programming levels of the cells, only after programming all the memory cells in the given row to assume the programming levels other than the highest level. Data is stored in the memory cells by programming the memory cells in accordance with the predefined order.
摘要翻译：一种用于数据存储的方法包括预先定义以行排列的多个模拟存储器单元的编程顺序。该顺序指定对于在第一和第二侧具有相邻行的给定行，只有当至少一个侧面上的相邻行中的存储器单元处于擦除状态时，给定行中的存储器单元被编程，并且该给定行中的存储器单元被编程为假设最高编程电平，其对应于单元的编程电平中的最大模拟值，只有在编程给定行中的所有存储器单元之后才采用除最高水平。根据预定义的顺序对存储器单元进行编程，将数据存储在存储器单元中。

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