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71. 发明授权

US09780809B2 Tracking and use of tracked bit values for encoding and decoding data in unreliable memory 有权
公开(公告)号：US09780809B2
公开(公告)日：2017-10-03
申请号：US14701130
申请日：2015-04-30
申请人： SanDisk Technologies Inc.
发明人： Daniel Tuers , Abhijeet Manohar , Sujeeth Joseph
IPC分类号： H03M13/45 , G06F11/10 , G06F3/06 , H03M13/29 , H03M13/37 , G11C29/52 , G11C5/04 , G11C29/04 , G11C29/44
CPC分类号： H03M13/45 , G06F3/0679 , G06F11/1048 , G06F11/1068 , G11C5/04 , G11C29/52 , G11C2029/0409 , G11C2029/4402 , H03M13/2909 , H03M13/2927 , H03M13/293 , H03M13/3715
摘要： A non-volatile memory system may include a tracking module that tracks logic values of bits to be stored in memory elements identified as unreliable. A record of the logic values may be generated. During decoding of the data, a log likelihood ratio module may use the record to assign log likelihood ratio values for the decoding.

72. 发明申请

US20170264312A1 READ THRESHOLD CALIBRATION FOR LDPC 有权
公开(公告)号：US20170264312A1
公开(公告)日：2017-09-14
申请号：US15604757
申请日：2017-05-25
申请人： Micron Technology, Inc.
发明人： Chandra C. Varanasi , Gerald L. Cadloni
IPC分类号： H03M13/11 , G06F11/07 , G06F11/10 , G11C11/56 , G11C16/34 , G11C29/00 , H03M13/00 , H03M13/09 , H03M13/37 , H03M13/45
CPC分类号： H03M13/1102 , G06F11/073 , G06F11/076 , G06F11/079 , G06F11/1012 , G06F11/1068 , G06F11/1072 , G06F11/1076 , G11C11/5621 , G11C16/3454 , G11C29/00 , H03M13/09 , H03M13/1105 , H03M13/1111 , H03M13/1128 , H03M13/1131 , H03M13/3723 , H03M13/3738 , H03M13/45 , H03M13/611 , H03M13/6325
摘要： Apparatuses and methods for soft read threshold location calibration are provided. One example method can include selecting read threshold sets (RTSs), and determining log-likelihood-ratios (LLRs) based on a number of decisions that correspond to each bin associated with the selected RTSs. Low-density parity-check (LDPC) codewords are decoded using the determined LLRs, and a RTS of the RTSs yielding a least number of failed codewords decoded using the determined LLRs is identified.

73. 发明授权

US09692449B2 Read threshold calibration for LDPC 有权
公开(公告)号：US09692449B2
公开(公告)日：2017-06-27
申请号：US15068984
申请日：2016-03-14
申请人： Micron Technology, Inc.
发明人： Chandra C. Varanasi , Gerald L. Cadloni
IPC分类号： H03M13/11 , G06F11/10 , H03M13/00 , G11C11/56 , G11C16/34 , G06F11/07 , G11C29/00 , H03M13/37 , H03M13/09 , H03M13/45
CPC分类号： H03M13/1102 , G06F11/073 , G06F11/076 , G06F11/079 , G06F11/1012 , G06F11/1068 , G06F11/1072 , G06F11/1076 , G11C11/5621 , G11C16/3454 , G11C29/00 , H03M13/09 , H03M13/1105 , H03M13/1111 , H03M13/1128 , H03M13/1131 , H03M13/3723 , H03M13/3738 , H03M13/45 , H03M13/611 , H03M13/6325
摘要： Apparatuses and methods for soft read threshold location calibration are provided. One example method can include selecting read threshold sets (RTSs), and determining log-likelihood-ratios (LLRs) based on a number of decisions that correspond to each bin associated with the selected RTSs. Low-density parity-check (LDPC) codewords are decoded using the determined LLRs, and a RTS of the RTSs yielding a least number of failed codewords decoded using the determined LLRs is identified.

74. 发明申请

US20170117925A1 ADAPTIVE SCHEDULER FOR DECODING 审中-公开
公开(公告)号：US20170117925A1
公开(公告)日：2017-04-27
申请号：US14924627
申请日：2015-10-27
申请人： SANDISK TECHNOLOGIES INC.
发明人： Stella Achtenberg , Eran Sharon , Ran Zamir
IPC分类号： H03M13/37 , G11C29/52 , H03M13/45 , G06F11/10
CPC分类号： H03M13/3746 , G06F11/10 , G06F11/1072 , G11C29/52 , H03M13/1108 , H03M13/1137 , H03M13/114 , H03M13/116 , H03M13/1171 , H03M13/1191 , H03M13/1515 , H03M13/152 , H03M13/2957 , H03M13/3707 , H03M13/45
摘要： A decoder includes a processor and a scheduler coupled to the processor. The processor is configured to process a set of nodes related to a representation of a codeword during a first decode iteration. The nodes are processed in a first order. The scheduler is configured to generate a schedule that indicates a second order of the set of nodes. The second order is different from the first order.

75. 发明授权

US09575832B2 Systems and methods for soft data utilization in a solid state memory system 有权
标题翻译：在固态存储器系统中软数据利用的系统和方法
公开(公告)号：US09575832B2
公开(公告)日：2017-02-21
申请号：US14956162
申请日：2015-12-01
申请人： SEAGATE TECHNOLOGY LLC
发明人： Yunxiang Wu , Yu Cai , Erich F. Haratsch
IPC分类号： H03M13/00 , G06F11/10 , H03M13/45
CPC分类号： H03M13/1111 , G06F11/1008 , G06F11/1012 , G06F11/1068 , H03M13/45 , H03M13/611
摘要： Systems and methods relating generally to solid state memory, and more particularly to systems and methods for recovering data from a solid state memory. An example data processing system includes a first circuit operable to yield a modified soft data set from a data set accessed from a solid state memory device, and a second circuit operable to apply a data decoding algorithm to the modified soft data to yield a decoded output.
摘要翻译：一般涉及固态存储器的系统和方法，更具体地涉及用于从固态存储器恢复数据的系统和方法。示例数据处理系统包括第一电路，其可操作以从从固态存储器件访问的数据集产生修改的软数据集，以及第二电路，可操作以将数据解码算法应用于修改的软数据，以产生解码输出。

76. 发明申请

US20170024279A1 FLASH CHANNEL CALIBRATION WITH MULTIPLE LOOKUP TABLES 审中-公开
标题翻译：具有多个查询表的闪烁通道校准
公开(公告)号：US20170024279A1
公开(公告)日：2017-01-26
申请号：US15230075
申请日：2016-08-05
申请人： NXGN DATA, INC.
发明人： Guangming Lu
IPC分类号： G06F11/10 , H03M13/45 , G11C29/52 , H03M13/05
CPC分类号： G06F11/1068 , G06F11/1012 , G11C11/5642 , G11C16/26 , G11C29/021 , G11C29/028 , G11C29/42 , G11C29/52 , H03M13/05 , H03M13/45
摘要： A system and method for generating lookup tables for use in an adaptive multiple-read system for reading flash memory. Successive different attempts are made to decode previously stored data using error correction codes, the attempts differing, for example, with respect to the combination of raw data words used for each attempt, each raw data word having been obtained by reading a code word of data using a different word line voltage. When a decoding attempt succeeds, log likelihood ratios are calculated from counts of flipped bits, i.e., bits in the raw data read from the memory having a different value than the corresponding bits in the decoded data.
摘要翻译：一种用于产生用于读取闪存的自适应多读系统中的查找表的系统和方法。使用错误校正码对先前存储的数据进行不同的尝试，例如，相对于每次尝试使用的原始数据字的组合，尝试是不同的，每个原始数据字通过读取数据的代码字而获得使用不同的字线电压。当解码尝试成功时，通过翻转比特的计数，即从存储器中读取的原始数据中与比较解码数据中的相应比特值不同的比特来计算对数似然比。

77. 发明授权

US09535788B2 High-performance ECC decoder 有权
标题翻译：高性能ECC解码器
公开(公告)号：US09535788B2
公开(公告)日：2017-01-03
申请号：US14821124
申请日：2015-08-07
申请人： Apple Inc.
发明人： Micha Anholt , Naftali Sommer , Gil Semo , Tal Inbar
IPC分类号： G06F11/10 , H03M13/45 , H03M13/00 , H03M13/15 , H03M13/03
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。

78. 发明授权

US09515682B2 Device for correcting two errors with a code of hamming distance three or four 有权
标题翻译：用汉明距离三或四来纠正两个错误的装置
公开(公告)号：US09515682B2
公开(公告)日：2016-12-06
申请号：US14411081
申请日：2013-06-26
申请人： COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
发明人： Samuel Evain , Valentin Gherman
IPC分类号： H03M13/00 , H03M13/29 , G06F11/10 , H03M13/15 , H03M13/45
CPC分类号： H03M13/2906 , G06F11/10 , H03M13/159 , H03M13/453
摘要： A device for correcting an initial binary word affected by an error in 1 or 2 bits and arising from a corrector code endowed with a minimum Hamming distance of 3 or 4, comprises first means for correcting an error of 1 bit and for detecting an error of more than 1 bit in the initial word and second means for correcting an error of 1 bit in a word arising from an inversion module, able to receive a datum indicative of a binary level of confidence, low or high, assigned to each of the bits of at least one part of the initial word, said inversion module being configured to invert the bits of the initial word which suffer the low confidence level, and a multiplexer with at least two inputs which is driven by the means for detecting an error of more than 1 bit in the initial word, said multiplexer being fed on a first input by the output of the first correction means and on a second input by the output of the second correction means.
摘要翻译：用于校正受1或2位误差影响并由具有3或4的最小汉明距离的校正码产生的初始二进制字的装置包括用于校正1位误差的第一装置和用于检测在初始字中超过1位，并且用于校正由反转模块产生的字中的1位的误差的第二装置，其能够接收指示分配给每个位的低或低的二进制置信水平的数据所述反转模块被配置为反转处于低置信度水平的初始字的位，以及具有至少两个输入的多路复用器，所述至少两个输入由用于检测更多的错误的装置驱动在初始字中比1比特，所述多路复用器由第一校正装置的输出在第一输入端上馈送，在第二输入端由第二校正装置的输出馈送。

79. 发明授权

US09503126B2 ECC polar coding and list decoding methods and codecs 有权
标题翻译： ECC极性编码和列表解码方法和编解码器
公开(公告)号：US09503126B2
公开(公告)日：2016-11-22
申请号：US13938609
申请日：2013-07-10
申请人： The Regents of the University of California
发明人： Alexander Vardy , Ido Tal
IPC分类号： H03M13/00 , H03M13/13 , H03M13/45 , H03M13/09
CPC分类号： H03M13/13 , H03M13/09 , H03M13/451
摘要： A method of decoding data encoded with a polar code and devices that encode data with a polar code. A received word of polar encoded data is decoded following several distinct decoding paths to generate a list of codeword candidates. The decoding paths are successively duplicated and selectively pruned to generate a list of potential decoding paths. A single decoding path among the list of potential decoding paths is selected as the output and a single candidate codeword is thereby identified. In another preferred embodiment, the polar encoded data includes redundancy values in its unfrozen bits. The redundancy values aid the selection of the single decoding path. A preferred device of the invention is a cellular network device, (e.g., a handset) that conducts decoding in accordance with the methods of the invention.
摘要翻译：一种对利用极性码进行编码的数据进行解码的方法以及使用极性码编码数据的装置。接收到的极性编码数据的字在几个不同的解码路径之后解码，以生成码字候选列表。解码路径被连续复制并选择性地修剪以产生潜在解码路径的列表。选择潜在解码路径列表中的单个解码路径作为输出，从而识别单个候选码字。在另一优选实施例中，极性编码数据包括其未冻结位中的冗余值。冗余值有助于选择单个解码路径。本发明的优选设备是根据本发明的方法进行解码的蜂窝网络设备（例如手机）。

80. 发明申请

US20160322990A1 TRACKING AND USE OF TRACKED BIT VALUES FOR ENCODING AND DECODING DATA IN UNRELIABLE MEMORY 有权
标题翻译：跟踪和使用跟踪的比特值在不可靠的内存中编码和解码数据
公开(公告)号：US20160322990A1
公开(公告)日：2016-11-03
申请号：US14701130
申请日：2015-04-30
申请人： SanDisk Technologies Inc.
发明人： Daniel Tuers , Abhijeet Manohar , Sujeeth Joseph
IPC分类号： H03M13/35 , G11C29/52 , H03M13/45 , G06F11/10
CPC分类号： H03M13/45 , G06F3/0679 , G06F11/1048 , G06F11/1068 , G11C5/04 , G11C29/52 , G11C2029/0409 , G11C2029/4402 , H03M13/2909 , H03M13/2927 , H03M13/293 , H03M13/3715
摘要： A non-volatile memory system may include a tracking module that tracks logic values of bits to be stored in memory elements identified as unreliable. A record of the logic values may be generated. During decoding of the data, a log likelihood ratio module may use the record to assign log likelihood ratio values for the decoding.
摘要翻译：非易失性存储器系统可以包括跟踪模块，其跟踪要存储在被识别为不可靠的存储器元件中的位的逻辑值。可以生成逻辑值的记录。在解码数据期间，对数似然比模块可以使用记录来分配用于解码的对数似然比值。

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