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1. 发明授权

US09954558B1 Fast decoding of data stored in a flash memory 有权
公开(公告)号：US09954558B1
公开(公告)日：2018-04-24
申请号：US15059397
申请日：2016-03-03
申请人： Avago Technologies General IP (Singapore) Pte. Ltd.
发明人： Avi Steiner , Avigdor Segal , Hanan Weingarten
IPC分类号： H03M13/37 , G06F11/10 , H03M13/29 , G11C16/26
CPC分类号： H03M13/3784 , G06F11/1068 , G11C11/5642 , G11C16/26 , G11C29/00 , G11C29/52 , H03M13/2918
摘要： A method for fast decoding, the method may include (a) performing a hard read of a group of flash memory cells to provide hard read data; wherein the group of flash memory cells store a codeword that comprises component codes of multiple dimensions; (b) hard decoding the hard read data to provide a hard decoding result; wherein the hard decoding result comprises first suggested values of component codes of at least one dimension of the multiple dimensions; (c) performing at least one additional read attempt of the group of flash memory cells to provide additional data; (d) performing a partial extensiveness soft decoding the additional data, in response to the first suggested values, to provide a soft decoding result; and (e) wherein the soft decoding result comprises second suggested values of component codes of one or more dimensions of the multiple dimensions.

2. 发明授权

US09794026B2 Adaptive data interference cancellation 有权
公开(公告)号：US09794026B2
公开(公告)日：2017-10-17
申请号：US14245155
申请日：2014-04-04
申请人： QUALCOMM Incorporated
发明人： Alan Barbieri , Tao Luo
IPC分类号： H04L1/00 , H04B1/10 , H04L5/00 , H04W24/02 , H04J11/00 , H03M13/37 , H04W84/04
CPC分类号： H04L1/005 , H03M13/3746 , H03M13/3784 , H04J11/004 , H04J11/0043 , H04J11/005 , H04L1/0048 , H04L5/0032 , H04W24/02 , H04W84/045
摘要： Real-time selection of interference cancellation schemes based on transmission parameters and amount of resource overlap between the desired payload and the interfering payload. Codeword level interference cancellation may be performed where the signal quality of the interfering signal indicates that the interfering payload will be decoded correctly. When performed, codeword level interference cancellation may be monitored to determine if decoding the interfering payload is converging. Other interference cancellation schemes may be selected based on the signal quality of the interfering signal or non-converging decode of the interfering payload. The number of iterations for iterative decoding in codeword level interference cancellation may be dynamically selected. The decoder output (e.g., soft bits) may be used to perform interference cancellations before the decoder is fully converged. Iterative decoding may be performed in multiple passes and soft decision output form one pass may be used to initialize the decoder for a subsequent pass.

3. 发明授权

US09473266B1 Scheduling strategies for iterative decoders 有权
标题翻译：迭代解码器的调度策略
公开(公告)号：US09473266B1
公开(公告)日：2016-10-18
申请号：US12473728
申请日：2009-05-28
申请人： Ara Patapoutian , Bruce Buch , Rose Shao
发明人： Ara Patapoutian , Bruce Buch , Rose Shao
IPC分类号： G06F11/00 , H04L1/00
CPC分类号： H03M13/1111 , H03M13/1105 , H03M13/3738 , H03M13/3746 , H03M13/3784 , H03M13/616 , H03M13/6325 , H04L1/0057
摘要： An iterative decoder is controlled to iteratively decode a block by performing one or more decoding iterations for the block. The iterative decoder uses a parity-check matrix and can be configured to process that parity-check matrix for parallel, sequential or a combination of parallel and sequential (“hybrid”) parity constraint updates.
摘要翻译：控制迭代解码器以通过对该块执行一个或多个解码迭代来迭代地解码块。迭代解码器使用奇偶校验矩阵，并且可以被配置为处理用于并行，顺序或并行和顺序（“混合”）奇偶校验约束更新的组合的奇偶校验矩阵。

4. 发明授权

US09461863B2 Systems and methods for advanced iterative decoding and channel estimation of concatenated coding systems 有权
公开(公告)号：US09461863B2
公开(公告)日：2016-10-04
申请号：US14825557
申请日：2015-08-13
申请人： Digital PowerRadio, LLC
发明人： Branimir R Vojcic , Farnaz Shayegh
IPC分类号： H04L27/06 , H04L27/26 , G06F11/16 , H04L1/00 , H04L25/02 , H03M13/11 , H03M13/15 , H03M13/25 , H03M13/27 , H03M13/29 , H03M13/37 , H03M13/00 , H04B17/309 , H03M13/23 , H03M13/09
CPC分类号： H04L1/0045 , G06F11/1625 , H03M13/09 , H03M13/1108 , H03M13/1111 , H03M13/112 , H03M13/1131 , H03M13/1154 , H03M13/1191 , H03M13/1515 , H03M13/23 , H03M13/255 , H03M13/27 , H03M13/2792 , H03M13/2906 , H03M13/2933 , H03M13/2948 , H03M13/3707 , H03M13/373 , H03M13/3746 , H03M13/3784 , H03M13/3938 , H03M13/45 , H03M13/451 , H03M13/453 , H03M13/612 , H03M13/616 , H03M13/6325 , H03M13/6337 , H03M13/6362 , H03M13/6541 , H03M13/6552 , H03M13/658 , H04B17/309 , H04L1/004 , H04L1/005 , H04L1/0057 , H04L1/0059 , H04L1/0065 , H04L1/0071 , H04L25/022 , H04L25/0222 , H04L25/0224 , H04L25/0236 , H04L27/261 , H04L27/2649
摘要： Systems and methods for decoding block and concatenated codes are provided. These include advanced iterative decoding techniques based on belief propagation algorithms, with particular advantages when applied to codes having higher density parity check matrices. Improvements are also provided for performing channel state information estimation including the use of optimum filter lengths based on channel selectivity and adaptive decision-directed channel estimation. These improvements enhance the performance of various communication systems and consumer electronics. Particular improvements are also provided for decoding HD Radio signals, including enhanced decoding of reference subcarriers based on soft-diversity combining, joint enhanced channel state information estimation, as well as iterative soft-input soft-output and list decoding of convolutional codes and Reed-Solomon codes. These and other improvements enhance the decoding of different logical channels in HD Radio systems.

5. 发明申请

US20160269144A1 ADAPTIVE DATA INTERFERENCE CANCELLATION 审中-公开
标题翻译：自适应数据干扰消除
公开(公告)号：US20160269144A1
公开(公告)日：2016-09-15
申请号：US15158094
申请日：2016-05-18
申请人： QUALCOMM Incorporated
发明人： Alan Barbieri , Tao Luo
IPC分类号： H04L1/00 , H03M13/37 , H04J11/00
CPC分类号： H04L1/005 , H03M13/3746 , H03M13/3784 , H04J11/004 , H04J11/0043 , H04J11/005 , H04L1/0048 , H04L5/0032 , H04W24/02 , H04W84/045
摘要： Real-time selection of interference cancellation schemes based on transmission parameters and amount of resource overlap between the desired payload and the interfering payload. Codeword level interference cancellation may be performed where the signal quality of the interfering signal indicates that the interfering payload will be decoded correctly. When performed, codeword level interference cancellation may be monitored to determine if decoding the interfering payload is converging. Other interference cancellation schemes may be selected based on the signal quality of the interfering signal or non-converging decode of the interfering payload. The number of iterations for iterative decoding in codeword level interference cancellation may be dynamically selected. The decoder output (e.g., soft bits) may be used to perform interference cancellations before the decoder is fully converged. Iterative decoding may be performed in multiple passes and soft decision output form one pass may be used to initialize the decoder for a subsequent pass.
摘要翻译：基于传输参数和所需有效载荷与干扰有效载荷之间的资源重叠量的干扰消除方案的实时选择。可以在干扰信号的信号质量指示干扰有效负载将被正确解码的情况下执行码字级干扰消除。当执行时，可以监视码字电平干扰消除以确定对干扰有效载荷的解码是否正在收敛。可以基于干扰信号的信号质量或干扰有效负载的非收敛解码来选择其他干扰消除方案。可以动态地选择码字电平干扰消除中迭代解码的迭代次数。解码器输出（例如，软比特）可以在解码器完全收敛之前用于执行干扰消除。可以在多遍中执行迭代解码，并且可以使用一次通过的软判决输出来初始化用于后续通过的解码器。

6. 发明授权

US09337873B2 Miscorrection detection for error correcting codes using bit reliabilities 有权
标题翻译：误码检测用于使用位可靠性进行纠错码
公开(公告)号：US09337873B2
公开(公告)日：2016-05-10
申请号：US14265249
申请日：2014-04-29
申请人： SK Hynix Inc.
发明人： Marcus Marrow , Jason Bellorado , Zheng Wu , Naveen Kumar
IPC分类号： H04L1/00 , H03M13/45 , H03M13/15 , H03M13/37 , G06F11/10 , H03M13/29
CPC分类号： H03M13/453 , G06F11/1012 , H03M13/152 , H03M13/2963 , H03M13/2975 , H03M13/3738 , H03M13/3784
摘要： Miscorrection detection for error correction codes using bit reliabilities includes receiving a plurality of reliabilities corresponding to respective ones of a plurality of read values, receiving one or more proposed corrections corresponding to one or more of the plurality of read values, and determining a miscorrection metric based at least in part on one or more of the plurality of reliabilities corresponding to the one or more of the plurality of read values.
摘要翻译：使用位可靠性的误差校正码的误差检测包括：接收与多个读取值中的相应的读取值对应的多个可靠性，接收对应于多个读取值中的一个或多个的一个或多个所提出的校正，以及基于错误校正度量至少部分地基于对应于所述多个读取值中的一个或多个的多个可靠性中的一个或多个。

7. 发明申请

US20150326253A1 FORWARD ERROR CORRECTION WITH TURBO/NON-TURBO SWITCHING 有权
标题翻译：带涡轮/非涡轮开关的前向错误校正
公开(公告)号：US20150326253A1
公开(公告)日：2015-11-12
申请号：US14704385
申请日：2015-05-05
申请人： Cisco Technology, Inc.
发明人： Andreas Bisplinghoff , Stefan Langenbach , Norbert Beck
IPC分类号： H03M13/37 , H03M13/45 , H03M13/25 , H03M13/11 , H03M13/00
CPC分类号： H03M13/3746 , H03M13/1102 , H03M13/1111 , H03M13/258 , H03M13/2957 , H03M13/336 , H03M13/3715 , H03M13/3784 , H03M13/45 , H03M13/458 , H03M13/616 , H03M13/6325 , H03M13/6337 , H04L1/0045
摘要： A forward error correction and differentially encoded signal obtained via a communication channel is supplied to a soft-input soft-output (SISO) differential decoder that is bi-directionally coupled to a SISO forward error correction decoder. Over a first portion of a plurality of decoding iterations of the differentially encoded signal, the SISO differential decoder and the SISO forward error correction decoder are operated in a turbo decoding mode in which decoded messages generated by the SISO differential decoder are supplied to the SISO forward error correction decoder and forward error correction messages are supplied to the differential decoder. Over a second portion of the plurality of decoding iterations of the differentially encoded signal, the SISO forward error correction decoder is operated in a non-turbo decoding mode without any messages passing to and from the SISO differential decoder. Decoder output is obtained from the SISO forward error correction decoder.
摘要翻译：经由通信信道获得的前向纠错和差分编码信号被提供给双向耦合到SISO前向纠错解码器的软输入软输出（SISO）差分解码器。在差分编码信号的多个解码迭代的第一部分中，SISO差分解码器和SISO前向纠错解码器以turbo解码模式操作，其中由SISO差分解码器产生的解码信息被提供给SISO前向纠错解码器和前向纠错消息被提供给差分解码器。在差分编码信号的多个解码迭代的第二部分上，SISO前向纠错解码器以非turbo解码模式操作，而没有任何消息传送到SISO差分解码器。解码器输出从SISO前向纠错解码器获得。

8. 发明申请

US20140153625A1 Systems and Methods for Advanced Iterative Decoding and Channel Estimation of Concatenated Coding Systems 有权
标题翻译：用于连续编码系统的高级迭代解码和信道估计的系统和方法
公开(公告)号：US20140153625A1
公开(公告)日：2014-06-05
申请号：US13693023
申请日：2012-12-03
申请人： DIGITAL POWERRADIO, LLC
发明人： Branimir R. Vojcic , Farnaz Shayegh , Hakan Dogan , Wookwon Lee
IPC分类号： G06F11/16
CPC分类号： H04L1/0045 , G06F11/1625 , H03M13/09 , H03M13/1108 , H03M13/1111 , H03M13/112 , H03M13/1131 , H03M13/1154 , H03M13/1191 , H03M13/1515 , H03M13/23 , H03M13/255 , H03M13/27 , H03M13/2792 , H03M13/2906 , H03M13/2933 , H03M13/2948 , H03M13/3707 , H03M13/373 , H03M13/3746 , H03M13/3784 , H03M13/3938 , H03M13/45 , H03M13/451 , H03M13/453 , H03M13/612 , H03M13/616 , H03M13/6325 , H03M13/6337 , H03M13/6362 , H03M13/6541 , H03M13/6552 , H03M13/658 , H04B17/309 , H04L1/004 , H04L1/005 , H04L1/0057 , H04L1/0059 , H04L1/0065 , H04L1/0071 , H04L25/022 , H04L25/0222 , H04L25/0224 , H04L25/0236 , H04L27/261 , H04L27/2649
摘要： Systems and methods for decoding block and concatenated codes are provided. These include advanced iterative decoding techniques based on belief propagation algorithms, with particular advantages when applied to codes having higher density parity check matrices. Improvements are also provided for performing channel state information estimation including the use of optimum filter lengths based on channel selectivity and adaptive decision-directed channel estimation. These improvements enhance the performance of various communication systems and consumer electronics. Particular improvements are also provided for decoding HD Radio signals, including enhanced decoding of reference subcarriers based on soft-diversity combining, joint enhanced channel state information estimation, as well as iterative soft-input soft-output and list decoding of convolutional codes and Reed-Solomon codes. These and other improvements enhance the decoding of different logical channels in HD Radio systems.
摘要翻译：提供了用于解码块和级联代码的系统和方法。这些包括基于置信传播算法的高级迭代解码技术，当应用于具有较高密度奇偶校验矩阵的代码时具有特别的优点。还提供了用于执行信道状态信息估计的改进，包括基于信道选择性和自适应决策信道估计使用最佳滤波器长度。这些改进提高了各种通信系统和消费电子产品的性能。还提供了对HD无线电信号进行解码的特别改进，包括基于软分集组合的增强解码参考子载波，联合增强信道状态信息估计，以及卷积码的迭代软输入软输出和列表解码以及Reed- 所罗门码。这些和其他改进增强了HD无线电系统中不同逻辑信道的解码。

9. 发明授权

US08423873B2 Decoding techniques for correcting errors using soft information 有权
标题翻译：使用软信息纠正错误的解码技术
公开(公告)号：US08423873B2
公开(公告)日：2013-04-16
申请号：US12787120
申请日：2010-05-25
申请人： Shaohua Yang , Richard Leo Galbraith , Ksenija Lakovic , Yuan Xing Lee , Travis Oenning , Jongseung Park , Hideki Sawaguchi , Bruce A. Wilson
发明人： Shaohua Yang , Richard Leo Galbraith , Ksenija Lakovic , Yuan Xing Lee , Travis Oenning , Jongseung Park , Hideki Sawaguchi , Bruce A. Wilson
IPC分类号： H03M13/00
CPC分类号： H03M13/45 , G11B20/1833 , G11B2020/1863 , G11B2220/2516 , H03M13/098 , H03M13/1102 , H03M13/1515 , H03M13/152 , H03M13/256 , H03M13/2906 , H03M13/2909 , H03M13/2945 , H03M13/2957 , H03M13/3784 , H03M13/4146 , H03M13/6343
摘要： Two levels of error correction decoding are performed using first and second level decoders. A composite code formed by combining an inner component code and an outer component code can be used to decode the data and correct any errors. Performing two level decoding using a composite code allows the size of the inner parity block to be reduced to a single Reed-Solomon symbol while keeping a good code rate. The first level decoder generates soft information. The soft information can indicate a most likely error event for each possible syndrome value of the inner component code. The soft information can also include error metric values for each of the most likely error events. The second level decoder generates corrected syndrome values based on the soft information using the outer component code. The most likely trellis path that corresponds to the corrected syndrome values is then selected.
摘要翻译：使用第一和第二级解码器执行两级纠错解码。可以使用通过组合内部组件代码和外部组件代码形成的组合代码来解码数据并纠正任何错误。使用复合代码执行两级解码允许内部奇偶校验块的大小减少到单个Reed-Solomon符号，同时保持良好的代码率。第一级解码器产生软信息。软信息可以指示内部组件代码的每个可能的综合征值的最可能的错误事件。软信息还可以包括每个最可能的错误事件的误差度量值。第二级解码器使用外部分量代码基于软信息生成校正的校正子值。然后选择对应于校正的综合征值的最可能的网格路径。

10. 发明申请

US20120076247A1 SISO decoder for a block code 有权
标题翻译： SISO解码器用于块代码
公开(公告)号：US20120076247A1
公开(公告)日：2012-03-29
申请号：US12929434
申请日：2011-01-25
申请人： Chun-Chieh Tseng
发明人： Chun-Chieh Tseng
IPC分类号： H03D1/00
CPC分类号： H03M13/3784 , H03M13/1102 , H03M13/21 , H03M13/2906 , H03M13/451
摘要： A soft-in-soft-out (SISO) decoder for a general block code includes a source bit generator which generates k guessed source bits; a channel encoder which maps the k guessed source bits to an n-bit channel codeword; a QAM symbol mapper which generates a locally generated symbol sequence comprising m consecutive QAM symbols based on the n-bit channel codeword; a correlator which receives a symbol sequence, a channel state information sequence, and the locally generated symbol sequence to calculate a correlation associated with the received symbol sequence based on the received symbol sequence, the channel state information sequence, and the locally generated symbol sequence; and a log-likelihood ratio calculator which is connected to the source bit generator and the correlator to thereby calculate the required log-likelihood ratios associated with all coded bits corresponding to the received symbol sequence.
摘要翻译：用于通用块码的软进软（SISO）解码器包括产生k个猜测源比特的源比特发生器; 将k个猜测的源比特映射到n比特信道码字的信道编码器; QAM符号映射器，其基于所述n位信道码字生成包括m个连续QAM符号的本地生成的符号序列; 相关器，其接收符号序列，信道状态信息序列和本地生成的符号序列，以基于接收的符号序列，信道状态信息序列和本地产生的符号序列来计算与接收到的符号序列相关联的相关性; 以及对数似然比计算器，其连接到源比特发生器和相关器，从而计算与对应于所接收的符号序列的所有编码比特相关联的所需对数似然比。

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