H03M 13/1148
Structural properties of the code parity-check or generator matrix
Official title: {Structural properties of the code parity-check or generator matrix}
H03M13/1148 (Structural properties of the code parity-check or generator matrix) appears on 2,501 US grants and 2,668 published applications in this corpus.
Search patents in H03M- Granted patents
- 2,501
- Published applications
- 2,668
- Assignees
- 458
- Inventors
- 2,151
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 4 |
| 2003 | 3 | 6 |
| 2004 | 4 | 24 |
| 2005 | 6 | 51 |
| 2006 | 10 | 47 |
| 2007 | 30 | 64 |
| 2008 | 33 | 72 |
| 2009 | 44 | 81 |
| 2010 | 51 | 91 |
| 2011 | 71 | 95 |
| 2012 | 133 | 67 |
| 2013 | 149 | 103 |
| 2014 | 129 | 128 |
| 2015 | 118 | 153 |
| 2016 | 127 | 230 |
| 2017 | 172 | 164 |
| 2018 | 114 | 147 |
| 2019 | 248 | 282 |
| 2020 | 206 | 214 |
| 2021 | 244 | 162 |
| 2022 | 193 | 134 |
| 2023 | 160 | 102 |
| 2024 | 127 | 100 |
| 2025 | 84 | 89 |
| 2026 | 42 | 58 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H03M 13/116Quasi-cyclic ldpc [qc-ldpc] codes, i.e. the parity-check matrix being composed of permutation1,855
- H03M 13/118Parity check matrix structured for simplifying encoding664
- H03M 13/1177Regular ldpc codes with parity-check matrices wherein all rows and columns have213
- H03M 13/1171Parity-check or generator matrices with non-binary elements184
- H03M 13/1174Parity-check or generator matrices built from sub-matrices representing known block codes such149
- H03M 13/1154Low-density parity-check convolutional codes [ldpc-cc]138
- H03M 13/1157Low-density generator matrices [ldgm]87
- H03M 13/1151Algebraically constructed ldpc codes54
Recent patents
- Low-complexity decoder and operation method thereof6 Oct 2026US 12,756,406 B2Samsung Electronics Co., Ltd.
- Apparatus and method for power reduction in a bit flipping decoder29 Sep 2026US 12,750,068 B2SK hynix Inc.
- LDPC encoding and decoding method and related apparatus29 Sep 2026US 12,750,069 B2Huawei Technologies Co., Ltd.
- Transmission method, reception method, transmitter, and receiver29 Sep 2026US 12,750,159 B2Panasonic Intellectual Property Corporation of America
- Communication techniques involving pairwise orthogonality of adjacent rows in LPDC code22 Sep 2026US RE51,040 E1QUALCOMM Incorporated
- Method for performing quantum error correction1 Oct 2026US 2026/0300796 A1
- System and method for low density parity check (ldpc) code with 5/6 code rate1 Oct 2026US 2026/0303123 A1Avago Technologies International Sales Pte. Limited
- Optimising belief propagation decoding for qec codes24 Sep 2026US 2026/0289379 A1Photonic Inc.
- Low density parity check decoder24 Sep 2026US 2026/0291519 A1The Texas A&M University System
- Permutations for a low-density parity check code17 Sep 2026US 2026/0280587 A1QUALCOMM Incorporated
Most cited
By later US patents
- Methods and apparatus for decoding LDPC codes319US 6,633,856 B2Flarion Technologies, Inc. · 2003
- Apparatus and methods for administering treatment within a bodily duct of a patient236US 9,692,557 B22017
- Method and apparatus for low density parity check encoding of data217US 6,895,547 B2International Business Machines Corporation · 2005
- Incremental media size extension for grid encoded data storage systems215US 9,904,589 B1Amazon Technologies, Inc. · 2018
- Method and system for providing low density parity check (LDPC) encoding211US 7,191,378 B2The DIRECTV Group, Inc. · 2007