-
1.
公开(公告)号:US20240322842A1
公开(公告)日:2024-09-26
申请号:US18735554
申请日:2024-06-06
发明人: Sung-Ik PARK , Sun-Hyoung KWON , Jae-Young LEE , Heung-Mook KIM
CPC分类号: H03M13/152 , H03M13/116 , H03M13/1162 , H03M13/1165 , H03M13/271 , H03M13/2778 , H03M13/618 , H03M13/6362 , H03M13/253 , H03M13/255 , H03M13/2906 , H03M13/6393 , H03M13/6552
摘要: A parity interleaving apparatus and method for variable length signaling information are disclosed. A parity interleaving apparatus according to an embodiment of the present invention includes a processor configured to generate a parity bit string for parity puncturing by segmenting parity bits of an LDPC codeword whose length is 16200 and whose code rate is 3/15, into a plurality of groups, and group-wise interleaving the groups using an order of group-wise interleaving; and memory configured to provide the parity bit string for parity puncturing to a parity puncturing unit.
-
公开(公告)号:US12050514B1
公开(公告)日:2024-07-30
申请号:US18184872
申请日:2023-03-16
申请人: Kioxia Corporation
发明人: Avi Steiner , Ofir Kanter
CPC分类号: G06F11/1068 , H03M13/152
摘要: Systems, methods, non-transitory computer-readable media to perform operations associated with the storage medium. One system includes a storage medium and an encoding/decoding (ED) system to perform operations associated with the storage medium, the ED system being configured to process a set of log-likelihood ratios (LLRs) and a syndrome vector to obtain a set of confidence values for each bit of a codeword, estimate an error vector based on selecting one or more bit locations with confidence values from the set of confidence values above threshold value and applying hard decision decoding to the selected one or more bit locations, calculate a sum LLR score for the estimated error vector, and output a decoded codeword based on the estimated error vector and the sum LLR score.
-
公开(公告)号:US12004240B2
公开(公告)日:2024-06-04
申请号:US17972176
申请日:2022-10-24
发明人: Pierre Humblet
IPC分类号: H04W76/10 , H03M13/11 , H03M13/15 , H03M13/29 , H04L1/00 , H04W28/20 , H04W72/044 , H04W72/0453 , H04W72/21 , H04W72/23
CPC分类号: H04W76/10 , H03M13/2921 , H04L1/00 , H04L1/0041 , H04L1/0071 , H04W28/20 , H04W72/23 , H03M13/1102 , H03M13/1515 , H03M13/152 , H04W72/044 , H04W72/0453 , H04W72/21
摘要: Techniques for performing forward error correction of data to be transmitted over an optical communications channel. The techniques include: receiving data bits; organizing the data bits into an arrangement having a plurality of blocks organized into rows and columns and into a plurality of strands including a first strand of blocks that includes a back portion comprising a first row of the plurality of blocks, and a front portion comprising blocks from at least two different columns in at least two different rows other than the first row of blocks; and encoding at least some of the data bits in the arrangement using a first error correcting code at least in part by generating first parity bits by applying the first error correcting code to first data bits in the front portion of the first strands and second data bits in the back portion of the first strand.
-
公开(公告)号:US11838124B2
公开(公告)日:2023-12-05
申请号:US17827883
申请日:2022-05-30
发明人: Se-Ho Myung , Kyung-Joong Kim , Hong-Sil Jeong
CPC分类号: H04L1/0057 , H03M13/1105 , H03M13/116 , H03M13/1165 , H03M13/255 , H03M13/2906 , H03M13/3776 , H03M13/616 , H03M13/6393 , H04L1/007 , H04L1/0045 , H04L1/0071 , H03M13/152 , H04L1/0065
摘要: A receiver is provided. The receiver includes: a first decoder configured to decode a superposition-coded signal by using a parity check matrix to generate Low Density Parity Check (LDPC) information word bits and first parity bits corresponding to a first layer signal; an encoder configured to encode the LDPC information word bits and the first parity bits to generate second parity bits, or encode the LDPC information word bits to generate the first parity bits and the second parity bits, by using the parity check matrix; and a second decoder configured to decode a signal which is generated by removing the first layer signal, corresponding to the LDPC information word bits, the first parity bits, and the second parity bits, from the superposition-coded signal, to reconstruct bits transmitted through the second layer signal.
-
公开(公告)号:US11789817B2
公开(公告)日:2023-10-17
申请号:US17240471
申请日:2021-04-26
发明人: Robert B. Eisenhuth
CPC分类号: G06F11/1076 , G06F3/0619 , G06F3/0659 , G06F3/0673 , H03M13/152 , H03M13/1515
摘要: Methods, systems, and devices for error correction for internal read operations are described. In some memory systems, a memory device may perform an internal read operation, in which the memory device reads data internal to the memory device (e.g., without sending the data to a memory system controller). To detect and correct errors during an internal read operation, the memory device may use an error control circuit on a memory die. The error control circuit on the memory die may operate on the same codeword, including the same data and same parity bits, as an error control circuit at the memory system controller, effectively reusing the stored parity bits for host read operations and internal read operations. To reduce the decoding overhead at the memory device, the error control circuit on the memory die may support detecting fewer errors than the error control circuit at the memory system controller.
-
公开(公告)号:US20230308117A1
公开(公告)日:2023-09-28
申请号:US18176217
申请日:2023-02-28
发明人: Huazi Zhang , Xianbin Wang , Jiajie Tong , Shengchen Dai , Rong Li , Jun Wang
CPC分类号: H03M13/152 , H03M13/616 , H03M13/6362
摘要: An encoding method and apparatus are provided, to propose a construction and encoding scheme of a BCH code. A code length and a code rate of an obtained BCH code are flexible, to satisfy a requirement of flexible channel encoding in wireless communication. The method includes determining a first encoding parameter based on a first BCH code, where the first BCH code is a to-be-coded BCH code, the first encoding parameter is a first code or a generator matrix of a first code, the first code has a code length of n and an information bit length of k, n is greater than o, and k is greater than o, and performing BCH encoding based on the first encoding parameter.
-
公开(公告)号:US11757568B2
公开(公告)日:2023-09-12
申请号:US17882217
申请日:2022-08-05
发明人: Se-ho Myung , Hong-sil Jeong , Kyung-joong Kim
IPC分类号: H04L1/00 , H03M13/11 , H03M13/25 , H03M13/27 , H03M13/29 , G06F11/10 , G06F17/11 , H03M13/15
CPC分类号: H04L1/0041 , G06F11/1096 , G06F17/11 , H03M13/1165 , H03M13/255 , H03M13/271 , H03M13/2732 , H03M13/2778 , H03M13/2906 , H04L1/0045 , H04L1/0057 , H04L1/0071 , H03M13/152
摘要: A transmitting apparatus is provided. The transmitting apparatus includes: an encoder configured to generate a low-density parity check (LDPC) codeword by LDPC encoding based on a parity check matrix; an interleaver configured to interleave the LDPC codeword; and a modulator configured to map the interleaved LDPC codeword onto a modulation symbol, wherein the modulator is further configured to map a bit included in a predetermined bit group from among a plurality of bit groups constituting the LDPC codeword onto a predetermined bit of the modulation symbol.
-
公开(公告)号:US11671199B2
公开(公告)日:2023-06-06
申请号:US17556256
申请日:2021-12-20
发明人: Mikihiro Ouchi
IPC分类号: H04L1/00 , H04L27/34 , H03M13/25 , H04L27/26 , H04L27/36 , H03M13/29 , H03M13/11 , H03M13/15 , H03M13/00
CPC分类号: H04L1/0041 , H03M13/255 , H04L1/0045 , H04L1/0057 , H04L27/2602 , H04L27/2627 , H04L27/3411 , H04L27/3488 , H03M13/1102 , H03M13/152 , H03M13/2906 , H03M13/6552 , H04L27/2649 , H04L27/362
摘要: An FEC coder in a transmission device according to an exemplary embodiment of the present disclosure performs BCH coding and LDPC coding based on whether a code length of the LDPC coding is a 16k mode or a 64k mode. A mapper performs mapping in an I-Q coordinate to perform conversion into an FEC block, and outputs pieces of mapping data (cells). The mapper defines different non-uniform mapping patterns with respect to different code lengths even an identical coding rate is used by the FEC coder. This configuration improves a shaping gain for different error correction code lengths in a transmission technology in which modulation of the non-uniform mapping pattern is used.
-
公开(公告)号:US11658683B2
公开(公告)日:2023-05-23
申请号:US17661981
申请日:2022-05-04
申请人: Saturn Licensing LLC
发明人: Ryoji Ikegaya , Makiko Yamamoto , Yuji Shinohara
IPC分类号: H03M13/11 , H03M13/03 , H03M13/25 , H03M13/27 , H03M13/29 , H03M13/35 , H04L1/00 , G06F11/10 , H03M13/00 , H03M13/15
CPC分类号: H03M13/1148 , G06F11/10 , H03M13/036 , H03M13/1137 , H03M13/1165 , H03M13/255 , H03M13/271 , H03M13/2757 , H03M13/2778 , H03M13/2792 , H03M13/2906 , H03M13/356 , H03M13/616 , H04L1/00 , H04L1/0041 , H04L1/0057 , H04L1/0058 , H04L1/0071 , H03M13/152
摘要: The present technology relates to a data processing device and a data processing method, which are capable of securing excellent communication quality in data transmission using an LDPC code. In group-wise interleave, an LDPC code in which a code length N is 16200 bits and an encoding rate r is 6/15, 8/15, or 10/15 is interleaved in units of bit groups of 360 bits. In group-wise deinterleave, a sequence of the LDPC code that has undergone the group-wise interleave is restored to an original sequence. For example, the present technology can be applied to a technique of performing data transmission using an LDPC code.
-
公开(公告)号:US20230155723A1
公开(公告)日:2023-05-18
申请号:US18155645
申请日:2023-01-17
发明人: Hong-sil Jeong , Kyung-Joong Kim , Se-ho Myung
CPC分类号: H04L1/0041 , H03M13/1165 , H03M13/255 , H03M13/2707 , H03M13/2778 , H03M13/3761 , H03M13/3769 , H03M13/6356 , H03M13/6362 , H04L1/0045 , H04L1/0057 , H04L1/0065 , H04L1/0067 , H04L1/0071 , H03M13/152
摘要: A transmitter is provided. The transmitter includes: a Low Density Parity Check (LDPC) encoder configured to encode input bits to generate an LDPC codeword including the input bits and parity bits to be transmitted in a current frame; a parity permutator configured to perform by group-wise interleaving a plurality of bit groups configuring the parity bits based on a group-wise interleaving pattern comprising a first pattern and a second pattern; a puncturer configured to puncture some of the parity-permutated parity bits; and an additional parity generator configured to select at least some of the punctured parity bits to generate additional parity bits to be transmitted in a previous frame of the current frame, based on the first pattern and the second pattern.
-
-
-
-
-
-
-
-
-