G11B 20/1833
By adding special lists or symbols to the coded information
Official title: {by adding special lists or symbols to the coded information (G11B20/1806, G11B20/1866 take precedence)}
G11B20/1833 (By adding special lists or symbols to the coded information) appears on 2,104 US grants and 1,405 published applications in this corpus.
Search patents in G11B- Granted patents
- 2,104
- Published applications
- 1,405
- Assignees
- 369
- Inventors
- 2,460
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 8 | 0 |
| 1986 | 6 | 0 |
| 1987 | 7 | 0 |
| 1988 | 7 | 0 |
| 1989 | 15 | 0 |
| 1990 | 15 | 0 |
| 1991 | 11 | 0 |
| 1992 | 23 | 0 |
| 1993 | 43 | 0 |
| 1994 | 45 | 0 |
| 1995 | 61 | 0 |
| 1996 | 62 | 0 |
| 1997 | 71 | 0 |
| 1998 | 93 | 0 |
| 1999 | 79 | 0 |
| 2000 | 70 | 0 |
| 2001 | 62 | 27 |
| 2002 | 65 | 77 |
| 2003 | 66 | 78 |
| 2004 | 62 | 119 |
| 2005 | 53 | 93 |
| 2006 | 82 | 80 |
| 2007 | 105 | 160 |
| 2008 | 87 | 132 |
| 2009 | 105 | 79 |
| 2010 | 97 | 72 |
| 2011 | 77 | 50 |
| 2012 | 101 | 45 |
| 2013 | 71 | 65 |
| 2014 | 73 | 75 |
| 2015 | 81 | 57 |
| 2016 | 68 | 46 |
| 2017 | 45 | 34 |
| 2018 | 29 | 22 |
| 2019 | 39 | 33 |
| 2020 | 28 | 15 |
| 2021 | 23 | 7 |
| 2022 | 17 | 9 |
| 2023 | 11 | 8 |
| 2024 | 9 | 12 |
| 2025 | 10 | 2 |
| 2026 | 2 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G11B 2020/1836Using a reed solomon [rs] codeIndexing code212
- G11B 2020/185Using an low density parity check [ldpc] codeIndexing code178
- G11B 2020/1853Using a product code which has inner and outer parity symbolsIndexing code113
- G11B 2020/1843Using a cyclic redundancy check [crc]Indexing code110
- G11B 2020/1863Wherein the viterbi algorithm is used for decoding the error correcting codeIndexing code68
- G11B 2020/1846Using a picket code, i.e. a code in which a long distanceIndexing code35
- G11B 2020/1859Wherein a trellis is used for decoding the error correcting codeIndexing code27
- G11B 2020/1856Using a turbo codeIndexing code13
Recent patents
- Magnetic disk apparatus and method19 May 2026US 12,633,310 B2Kabushiki Kaisha Toshiba
- Magnetic disk device and DOL setting method28 Apr 2026US 12,614,566 B2Kabushiki Kaisha Toshiba
- Memory system with multiple striping of raid groups and method for performing the same21 Oct 2025US 12,449,997 B2Innovations In Memory LLC
- ML assisted dynamic decoding gear selection14 Oct 2025US 12,444,439 B2SanDisk Technologies LLC
- Memory controller, memory system, and memory control method5 Aug 2025US 12,381,580 B2Kioxia Corporation
- Data storage method, device, storage medium, and system20 Aug 2026US 2026/0244528 A1Cloud Intelligence Assets Holding (Singapore) Private Limited
- Magnetic disk device and dol setting method13 Aug 2026US 2026/0237405 A1Kabushiki Kaisha Toshiba
- Magnetic disk device11 Jun 2026US 2026/0162680 A1Kabushiki Kaisha Toshiba
- Two-dimensional interleaving of error correction code for burst and random error correction in tape storage28 May 2026US 2026/0147666 A1International Business Machines Corporation
- Memory system with multiple striping of raid groups and method for performing the same7 May 2026US 2026/0126925 A1Innovations In Memory LLC
Most cited
By later US patents
- Enhanced raid write hole protection and recovery1,578US 5,774,643 ADigital Equipment Corporation · 1998
- Scheme for information dispersal and reconstruction1,530US 5,485,474 APresident and Fellows of Harvard College · 1996
- Memory management system and method627US 8,200,887 B2Violin Memory, Inc. · 2012
- Memory system with multiple striping of raid groups and method for performing the same595US 9,632,870 B2Violin Memory, Inc. · 2017
- Memory management system and method590US 9,189,334 B2Violin Memory, Inc. · 2015