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公开(公告)号:US11750223B2
公开(公告)日:2023-09-05
申请号:US16367538
申请日:2019-03-28
申请人: Maxlinear, Inc.
发明人: Youzhe Fan , Jining Duan
CPC分类号: H03M13/1545 , H03M13/1105 , H03M13/157 , H03M13/6561
摘要: A system comprises a forward error correction decoder comprising syndrome computation circuitry, key-equation solver circuitry, and search and evaluator circuitry. The syndrome computation circuitry may comprise a plurality of syndrome compute units connected in parallel. The syndrome computation circuitry may be dynamically configurable to vary a quantity of the syndrome compute units used for processing of a codeword based on conditions of a channel over which the codeword was received. The syndrome computation circuitry may be operable to use a first quantity of the syndrome compute units for processing of a first codeword received over the channel when the channel is characterized by a first bit error rate and a second quantity of the syndrome compute units for processing of a second codeword received over the channel when the channel is characterized by a second bit error rate.
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92.
公开(公告)号:US11740970B2
公开(公告)日:2023-08-29
申请号:US16807056
申请日:2020-03-02
CPC分类号: G06F11/1076 , G06N5/04 , G06N20/00 , G11C16/26 , H03M13/1102 , G11C16/0483
摘要: A memory sub-system configured to dynamically select an option to process encoded data retrieved from memory cells of a memory component, based on a prediction generated using signal and noise characteristics of memory cells storing the encoded data. For example, the memory component is enclosed in an integrated circuit and has a calibration circuit. The signal and noise characteristics are measured by the calibration circuit as a byproduct of executing a read command in the memory component to retrieve the encoded data. A data integrity classifier configured in the memory sub-system generates a prediction based on the signal and noise characteristics. Based on the prediction, the memory sub-system selects an option from a plurality of options configured in the memory sub-system to process the encoded data.
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93.
公开(公告)号:US11736121B1
公开(公告)日:2023-08-22
申请号:US17827029
申请日:2022-05-27
发明人: Ho-Yin Chen , Han-Hsien Wang , Han-Nung Yeh
CPC分类号: H03M13/098 , H03M13/1108 , H03M13/6597
摘要: An error correction method comprises: when a decoder determines that an input analog code is at a forbidden state, setting a digital binary code as a first predetermined code and inputting the digital binary code to an ECC engine; determining whether the digital binary code has no error or two errors; when the digital binary code has no error, outputting the digital binary code after ECC by the ECC engine; when the digital binary code has two errors, resetting the digital binary code as a second predetermined code and inputting the digital binary code to the ECC engine for ECC; and when the decoder determines that the input analog code is not at the forbidden state, decoding the input analog code into the digital binary code and inputting the digital binary code to the ECC engine for ECC.
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公开(公告)号:US20230253984A1
公开(公告)日:2023-08-10
申请号:US18299250
申请日:2023-04-12
发明人: Min JANG , Seho MYUNG , Hongsil JEONG , Yangsoo KWON , Jeongho YEO
IPC分类号: H03M13/11
CPC分类号: H03M13/1111 , H03M13/118
摘要: An apparatus and method for efficiently decoding a low-density parity-check (LDPC) code in a communication or broadcasting system are provided. The disclosure relates to performing decoding of an LDPC code by using layered scheduling or a method equivalent thereto, and provides an LDPC decoding apparatus and method for improving decoding performance without increasing decoding complexity by applying appropriate decoding scheduling according to structural or algebraic characteristics of an LDPC code.
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公开(公告)号:US11722155B2
公开(公告)日:2023-08-08
申请号:US17165614
申请日:2021-02-02
发明人: Sung-Ik Park , Sun-Hyoung Kwon , Bo-Mi Lim , Jae-Young Lee , Heung-Mook Kim , Nam-Ho Hur
CPC分类号: H03M13/2792 , G06F11/1076 , H03M13/1102 , H03M13/116 , H03M13/1148 , H03M13/1185 , H03M13/255 , H03M13/2778 , H03M13/616 , H03M13/6552 , H04L1/0041 , H04L1/0045 , H04L1/0058 , H04L1/0071
摘要: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 16200 and a code rate of 4/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for 16-symbol mapping.
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公开(公告)号:US11711095B2
公开(公告)日:2023-07-25
申请号:US17729775
申请日:2022-04-26
CPC分类号: H03M13/1108 , H03M13/1177 , H03M13/1575 , H03M13/2948
摘要: A memory device having a Low-Density Parity-Check (LDPC) decoder that is energy efficient and has a low error floor. The decoder is configured to determine syndromes of bits in a codeword, select bits in the codeword based at least in part on the syndromes according to a first mode, and flip the selected bits in the codeword. The decoder can repeat the bit selection and flipping operations to iteratively improve the codeword and reduce parity violations. Further, the decoder can detect a pattern in parity violations of the codeword in its iterative bit flipping operations. In response, the decoder can change from the first mode to a second mode in bit selection for flipping. For example, the decoder can transmit from a dynamic syndrome mode to a static syndrome mode in response to the pattern of repeating a cycle of bit flipping iterations.
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公开(公告)号:US20230231573A1
公开(公告)日:2023-07-20
申请号:US17843171
申请日:2022-06-17
发明人: Marco SFORZIN , DI HSIEN NGU
IPC分类号: H03M13/09 , H03M13/11 , H03K19/173
CPC分类号: H03M13/098 , H03M13/1174 , H03M13/1171 , H03K19/1737
摘要: A system and method for detecting and correcting memory errors in CXL components is presented. The method includes receiving, into a decoder, a memory transfer block (MTB), wherein the MTB comprises data and parity information, wherein the MTB is arranged in a first dimension and a second dimension. An error checking and a correction function on the MTB is performed using a binary hamming code logic within the decoder in the first dimension. An error checking and a correction function on the MTB is performed using a non-binary hamming code logic within the decoder in the second dimension. Further, the binary hamming code logic and the non-binary hamming code logic perform the error checking on the MTB simultaneously.
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公开(公告)号:US11700018B2
公开(公告)日:2023-07-11
申请号:US17723765
申请日:2022-04-19
发明人: Hong-sil Jeong , Kyung-Joong Kim , Se-ho Myung
CPC分类号: H03M13/1111 , H03M13/1102 , H03M13/1165 , H03M13/255 , H03M13/271 , H03M13/2707 , H03M13/2778 , H03M13/2792 , H03M13/611 , H04L1/0041 , H04L1/0057 , H04L1/0058 , H04L1/0071 , H04L27/36
摘要: A signal receiving method include: demodulating a signal received from a transmitting apparatus to generate values based on 1024-quadrature amplitude modulation (QAM); splitting the values into a plurality of groups; deinterleaving the plurality of groups based on a preset interleaving order; and decoding values of the deinterleaved plurality of groups based on a low density parity check (LDPC) code, a code rate of the LDPC code being 6/15 and a code length of the LDPC code being 64800, wherein the plurality of groups are deinterleaved based on a predetermined equation.
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公开(公告)号:US11700015B2
公开(公告)日:2023-07-11
申请号:US17500848
申请日:2021-10-13
发明人: Sung-Ik Park , Sun-Hyoung Kwon , Bo-Mi Lim , Jae-Young Lee , Heung-Mook Kim , Nam-Ho Hur
CPC分类号: H03M13/1102 , G06F11/1076 , H03M13/116 , H03M13/1185 , H03M13/255 , H03M13/2778
摘要: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 16200 and a code rate of 3/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for 64-symbol mapping.
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公开(公告)号:US20230216522A1
公开(公告)日:2023-07-06
申请号:US18091605
申请日:2022-12-30
申请人: QUANTUM CORPORATION
发明人: Suayb S. Arslan , Turguy Goker
IPC分类号: H03M13/11
CPC分类号: H03M13/1105
摘要: A method for product decoding within a data storage system includes receiving data to be decoded within a first decoder; performing a plurality of decoding iterations to decode the data utilizing a first decoder and a second decoder; and outputting fully decoded data based on the performance of the plurality of decoding iterations. Each of the plurality of decoding iterations includes (i) decoding the data with the first decoder operating at a first decoder operational mode to generate once decoded data; (ii) sending the once decoded data from the first decoder to the second decoder; (iii) receiving error information from the first decoder with an artificial intelligence system; (iv) selecting a second decoder operational mode based at least in part on the error information that is received by the artificial intelligence system; and (v) decoding the once decoded data with the second decoder operating at the second decoder operational mode to generate twice decoded data; and outputting fully decoded data based on the performance of the plurality of decoding iterations.
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