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1. 发明公开

US20240243760A1 CONCATENATED ERROR CORRECTING CODES 审中-公开
公开(公告)号：US20240243760A1
公开(公告)日：2024-07-18
申请号：US18617505
申请日：2024-03-26
申请人： Innogrit Technologies Co., Ltd.
发明人： Chenrong XIONG , Jie CHEN
IPC分类号： H03M13/00 , H03M13/11 , H03M13/15 , H03M13/31 , H03M13/43
CPC分类号： H03M13/6513 , H03M13/1128 , H03M13/1131 , H03M13/152 , H03M13/1575 , H03M13/31 , H03M13/43 , H03M13/6511
摘要： Systems and methods are provided for concatenated error-correcting coding. An apparatus may include a Low-Density Parity-Check (LDPC) decoder configured to perform an iterative LDPC decoding process on bits of an LDPC codeword, a Bose-Chaudhuri-Hocquenghem (BCH) decoder coupled to the LDPC decoder and a BCH scheduler coupled to the LDPC decoder and the BCH decoder. The LDPC codeword may be generated by LDPC encoding a Bose-Chaudhuri-Hocquenghem (BCH) codeword and the BCH codeword may be generated by BCH encoding a data unit. The BCH scheduler may be configured to determine whether a triggering condition for the BCH decoder is met after each iteration of the iterative LDPC decoding process and activate the BCH decoder to operate on an intermediate decoding result of the LDPC decoder if the triggering condition for the BCH decoder is met.

2. 发明公开

US20240146336A1 INTEGRATION OF COMPRESSION ALGORITHMS WITH ERROR CORRECTION CODES 审中-公开
公开(公告)号：US20240146336A1
公开(公告)日：2024-05-02
申请号：US18498832
申请日：2023-10-31
申请人： Rambus Inc.
发明人： Thomas Vogelsang , Michael Alexander Hamburg , John Eric Linstadt , Evan Lawrence Erickson
IPC分类号： H03M13/00 , H03M13/15 , H03M13/43
CPC分类号： H03M13/6312 , H03M13/159 , H03M13/43
摘要： Aspects and implementations include systems and techniques that detect and correct failure of data storage and communication operations, including obtaining a first plurality of values, selecting a first plurality of error correction values to generate a first codeword, wherein the first codeword is associated with a plurality of syndrome values that encode a second subset of the first plurality of values, and causing a first processing device or a second processing device to restore the first plurality of values based on the first codeword.

3. 发明公开

US20240022262A1 Scheduling of iterative decoding depending on soft inputs 审中-公开
公开(公告)号：US20240022262A1
公开(公告)日：2024-01-18
申请号：US17863425
申请日：2022-07-13
申请人： Apple Inc.
发明人： Roy Roth , Yonathan Tate
IPC分类号： H03M13/29 , H03M13/43 , H03M13/11
CPC分类号： H03M13/2948 , H03M13/43 , H03M13/1108
摘要： A decoder includes circuitry and multiple Variable-Node Circuits (VNCs). The VNCs individually hold one or more variables of an Error Correction Code (ECC) that is representable by a plurality of check equations defined over the variables. The circuitry is configured to receive a code word including variables having m-bit values that was encoded using the ECC, to further receive reliability levels assigned respectively to the variables, to decode the code word by applying to the code word a sequence of iterations, including deciding in a given iteration whether a given VNC is to be processed or skipped in that iteration, depending on the reliability levels assigned to the variables of the given VNC, and, when the given VNC is selected for processing, to make a decision whether or not to update one or more of the variables of the given VNC, and to apply the decision by the given VNC.

4. 发明公开

US20230231574A1 SYNDROME CHECK FUNCTIONALITY TO DIFFERENTIATE BETWEEN ERROR TYPES 审中-公开
公开(公告)号：US20230231574A1
公开(公告)日：2023-07-20
申请号：US18098995
申请日：2023-01-19
申请人： Micron Technology, Inc.
发明人： Scott E. Schaefer
IPC分类号： H03M13/11 , H03M13/43 , H03M13/00
CPC分类号： H03M13/1111 , H03M13/43 , H03M13/611
摘要： Methods, systems, and devices for syndrome check functionality to differentiate between error types are described. A host system, a memory system, or some combination of both may include syndrome check circuitry to provide enhanced error diagnostic capabilities for data communicated between the host system and the memory system. The syndrome check circuitry may receive a first signal from the memory system indicating whether the memory system detected and attempted to correct an error in the data and may receive a second signal from the host system indicating whether the host system detected an error in the received data. The syndrome check circuitry may compare the first signal and the second signal using a set of logic gates to differentiate between different combinations of errors detected at one or both of the memory system or the host system.

5. 发明授权

US09928853B2 Reliable data reading with data set screening by error injection 有权
公开(公告)号：US09928853B2
公开(公告)日：2018-03-27
申请号：US15405216
申请日：2017-01-12
申请人： International Business Machines Corporation
发明人： Nhan X. Bui , Setsuko Masuda , Keisuke Tanaka , Kazuhiro Tsuruta
IPC分类号： G11B5/00 , G11B5/008 , G11B20/18 , G11B5/592 , G11B20/10 , H03M13/43 , H03M13/15 , G06F3/06
CPC分类号： G11B5/008 , G06F3/0671 , G06F13/16 , G06F2003/0698 , G11B5/5926 , G11B20/10388 , G11B20/1833 , H03M13/15 , H03M13/19 , H03M13/373 , H03M13/43
摘要： According to one embodiment, a system for processing data includes a controller configured to determine whether a position error signal (PES) is invalid while reading data from a magnetic medium using at least one data channel. The controller is also configured to determine whether a PES value is above a first predetermined threshold in response to a determination that the PES is valid. Moreover, the controller is configured to inject error bits into a data stream in place of corresponding bits of decoded data in response to a determination that the PES is invalid and in response to a determination that the PES value is above the first predetermined threshold. Other systems and methods for processing data are described in accordance with more embodiments.

6. 发明申请

US20170104556A1 Data Unit Retransmission 审中-公开
公开(公告)号：US20170104556A1
公开(公告)日：2017-04-13
申请号：US15285028
申请日：2016-10-04
申请人： Broadcom Corporation
发明人： Michael Eugene Locke
IPC分类号： H04L1/08 , H03M13/00 , H03M13/43
CPC分类号： H04M11/062 , H03M13/43 , H03M13/611 , H04L1/1893
摘要： A source node may send a first data unit to a destination node. To send the first data unit, the source node may transmit a modulation pattern over a transmission medium. In some cases, particular data units may correspond to modulation patterns with features that cause errors in transmission. The source node may receive an indication of an error from the destination node. To avoid repeated errors the retransmission, coding circuitry at the source node may alter data within the first data unit to generate a retransmission data unit. The alteration may result in the retransmission data unit corresponding to a modulation pattern different from that of the first data unit. The new modulation pattern may lack the error causing features and reduce the chance of repeated errors.

7. 发明申请

US20170026057A1 METHOD AND DECODER FOR DETERMINING AN ERROR VECTOR FOR A DATA WORD ACCORDING TO A REED-MULLER CODE 审中-公开
标题翻译：用于确定根据重新编码的数据字的错误矢量的方法和解码器
公开(公告)号：US20170026057A1
公开(公告)日：2017-01-26
申请号：US15214480
申请日：2016-07-20
申请人： Infineon Technologies AG
发明人： Rainer GOETTFERT
IPC分类号： H03M13/15 , H03M13/43 , H03M13/13
CPC分类号： H03M13/43 , H03M13/136 , H03M13/1515 , H03M13/152 , H03M13/155 , H03M13/1575
摘要： A method for determining an error vector for a data word according to a Reed-Muller Code includes determining the syndrome of the error vector according to the Reed-Muller Code, expanding the syndrome with zeroes to 1 bit length less than the length of the Reed-Muller Code, determining a code word of a Simplex Code of 1 bit length less than the length of the Reed-Muller Code whose difference to the expanded syndrome has a weight below a first threshold or equal to or above a second threshold, expanding the difference between the determined code word and the expanded syndrome by a zero, and outputting the expanded difference as error vector if its weight is below the first threshold or outputting the inverted expanded difference as error vector if the weight of the expanded difference is equal to or above the second threshold.
摘要翻译：用于根据Reed-Muller码确定数据字的误差向量的方法包括根据Reed-Muller码确定误差向量的综合征，将校正子扩展至零至长度小于Reed的长度的1比特长度 - 打印机代码，确定1比特长度的单词码的码字小于里氏 - 穆勒码的长度，其与扩展的综合征的差异具有低于第一阈值或等于或高于第二阈值的权重，扩展所确定的代码字和扩展的校正子之间的差值为零，并且如果扩展差异的权重低于第一阈值则将扩展差作为误差向量输出，或者如果扩展差的权重等于或者输出，则将反相扩展差作为误差向量输出高于第二个阈值。

8. 发明申请

US20160013807A1 RELIABLE DATA READING WITH DATA SET SCREENING BY ERROR INJECTION 有权
标题翻译：可靠数据读取与错误注入的数据设置屏幕
公开(公告)号：US20160013807A1
公开(公告)日：2016-01-14
申请号：US14331184
申请日：2014-07-14
申请人： International Business Machines Corporation
发明人： Nhan X. Bui , Setsuko Masuda , Keisuke Tanaka , Kazuhiro Tsuruta
IPC分类号： H03M13/11 , H03M13/00
CPC分类号： G11B5/008 , G06F3/0671 , G06F13/16 , G06F2003/0698 , G11B5/5926 , G11B20/10388 , G11B20/1833 , H03M13/15 , H03M13/19 , H03M13/373 , H03M13/43
摘要： According to one embodiment, a method for processing data includes determining whether a PES is invalid while reading data from a magnetic medium using at least one data channel, determining whether a PES value is above a first predetermined threshold when the PES is valid, injecting error bits into a data stream in place of corresponding bits of decoded data when the PES is invalid and/or the PES value is above the first predetermined threshold, decoding the data using a run-length limited (RLL) decoder to produce the decoded data based on the data from the magnetic medium, and outputting the data stream. Other methods, systems, and tape drives for processing data using error injection are described in more embodiments.
摘要翻译：根据一个实施例，一种用于处理数据的方法包括：当使用至少一个数据信道从磁介质读取数据时，确定PES是否无效，当PES有效时，确定PES值是否高于第一预定阈值，注入错误当PES无效和/或PES值高于第一预定阈值时，将位转换成数据流代替解码数据的对应位，使用游程长度限制（RLL）解码器对数据进行解码，以产生基于解码数据对来自磁介质的数据进行输出，并输出数据流。在更多实施例中描述了使用错误注入来处理数据的其它方法，系统和磁带驱动器。

9. 发明申请

US20150372697A1 ON-DIE ERROR DETECTION AND CORRECTION DURING MULTI-STEP PROGRAMMING 有权
标题翻译：在多步编程过程中的模拟错误检测和校正
公开(公告)号：US20150372697A1
公开(公告)日：2015-12-24
申请号：US14308911
申请日：2014-06-19
申请人： LSI Corporation
发明人： AbdelHakim S. Alhussien , Jeremy Werner , Erich F. Haratsch , Earl T. Cohen
IPC分类号： H03M13/29 , G06F11/10
CPC分类号： G06F11/1076 , G06F11/1012 , G06F11/108 , H03M13/1102 , H03M13/1108 , H03M13/152 , H03M13/19 , H03M13/23 , H03M13/2909 , H03M13/3746 , H03M13/43
摘要： An apparatus having a memory and a controller is disclosed. The memory is configured to (i) program a protected lower unit in a lower page of a location, (ii) generate a corrected lower unit by correcting the protected lower unit using a first error correction code and (iii) program a protected upper unit in an upper page of the location based on the corrected lower unit. The controller is configured to generate the protected upper unit by encoding an upper write data item using a second error correction code. The controller is on a separate die as the memory.
摘要翻译：公开了一种具有存储器和控制器的装置。存储器被配置为（i）在位置的下部页面对受保护的下位单元进行编程，（ii）通过使用第一纠错码校正受保护的下位单元来生成修正的下位单元，以及（iii）对被保护的上位单元进行编程在基于校正的下位单元的位置的上页中。控制器被配置为通过使用第二纠错码对高写入数据项进行编码来生成受保护的上位单元。控制器作为存储器在一个单独的芯片上。

10. 发明授权

US08495462B1 Absorb decode algorithm for 10gbase-t LDPC decoder 有权
标题翻译：用于10gbase-t LDPC解码器的吸收解码算法
公开(公告)号：US08495462B1
公开(公告)日：2013-07-23
申请号：US13738325
申请日：2013-01-10
申请人： Marvell International Ltd.
发明人： Zhenyu Liu
IPC分类号： H03M13/11
CPC分类号： H03M13/1117 , H03M13/3707 , H03M13/3738 , H03M13/43 , H03M13/451
摘要： Systems and methods are provided for correcting absorb sets and near absorb sets in the (2048, 1723) LDPC code used in 10 GBase-T transmission systems. Absorb sets and near absorb sets correspond to error patterns that, due to the structure and imperfections of the LDPC code, cannot easily be corrected using standard correction methods. To correct these error patterns, a set of failed syndrome checks associated with the error pattern can be identified, and the 4, 8, 12, or 16 error patterns associated with the failed syndrome checks can be determined. The codeword may then be corrected based on the error pattern that most likely occurred.
摘要翻译：提供了用于校正10 GBASE-T传输系统中使用的（2048,1723）LDPC码中的吸收组和近吸收组的系统和方法。吸收组和近吸收组对应于由于LDPC码的结构和缺陷而不能使用标准校正方法容易地校正的误差模式。为了纠正这些错误模式，可以识别与错误模式相关联的一组故障综合征检查，并且可以确定与故障综合征检查相关联的4,8,12或16个错误模式。然后可以基于最可能发生的错误模式来校正码字。

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