H03M 13/39
Sequence estimation, i.e. using statistical methods for the reconstruction of the original
Official title: Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
H03M13/39 (Sequence estimation, i.e. using statistical methods for the reconstruction of the original) appears on 2,330 US grants and 1,736 published applications in this corpus.
Search patents in H03M- Granted patents
- 2,330
- Published applications
- 1,736
- Assignees
- 585
- Inventors
- 3,210
- 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 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 10 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 16 | 0 |
| 1993 | 18 | 0 |
| 1994 | 22 | 0 |
| 1995 | 39 | 0 |
| 1996 | 37 | 0 |
| 1997 | 25 | 0 |
| 1998 | 52 | 0 |
| 1999 | 65 | 0 |
| 2000 | 68 | 0 |
| 2001 | 79 | 41 |
| 2002 | 80 | 109 |
| 2003 | 82 | 121 |
| 2004 | 91 | 117 |
| 2005 | 83 | 101 |
| 2006 | 117 | 98 |
| 2007 | 107 | 106 |
| 2008 | 83 | 93 |
| 2009 | 89 | 106 |
| 2010 | 106 | 93 |
| 2011 | 110 | 77 |
| 2012 | 147 | 68 |
| 2013 | 120 | 95 |
| 2014 | 132 | 75 |
| 2015 | 94 | 47 |
| 2016 | 63 | 33 |
| 2017 | 28 | 39 |
| 2018 | 37 | 51 |
| 2019 | 64 | 56 |
| 2020 | 63 | 48 |
| 2021 | 50 | 38 |
| 2022 | 41 | 33 |
| 2023 | 28 | 18 |
| 2024 | 21 | 23 |
| 2025 | 16 | 28 |
| 2026 | 17 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H03M 13/41Using the viterbi algorithm or viterbi processors1,594
- H03M 13/3905Maximum a posteriori probability [map] decoding or approximations thereof based on trellis531
- H03M 13/3961Arrangements of methods for branch or transition metric calculation308
- H03M 13/3972Using sliding window techniques or parallel windows217
- H03M 13/395Using a collapsed trellis72
- H03M 13/3994Using state pinning or decision forcing, i.e. the decoded sequence is forced66
- H03M 13/3988For rate k/n convolutional codes, with k>1, obtained by convolutional encoders with49
- H03M 13/3944For block codes, especially trellis or lattice decoding thereof44
Recent patents
- Ultra-wideband method and apparatus6 Oct 2026US 12,756,423 B2DecaWave, Ltd.
- Apparatus for transmitting and receiving signal29 Sep 2026US 12,750,161 B2Samsung Electronics Co., Ltd.
- State reduction for sequence estimation based on signal quality29 Sep 2026US 12,750,162 B2QUALCOMM Incorporated
- Data compression and channel coding techniques for variable length payloads29 Sep 2026US 12,750,729 B2QUALCOMM Incorporated
- Receiver for adjusting log likelihood ratio and method of operating the same8 Sep 2026US 12,732,212 B2Samsung Electronics Co., Ltd.
- Efficient dual sphere soft demapping for multi antenna communication systems1 Oct 2026US 2026/0303122 A1Avago Technologies International Sales Pte. Limited
- Integrated kalman filter-based phase-locked loop and viterbi equalizer27 Aug 2026US 2026/0254607 A1Silicon Laboratories Inc.
- Hard error correction based on selective error counts in low-density parity check codes in memory devices23 Jul 2026US 2026/0213773 A1
- Soft information generation for concatenated forward error correction in digital signal processing23 Jul 2026US 2026/0213774 A1Avago Technologies International Sales Pte. Limited
- Decoding based on data reliability18 Jun 2026US 2026/0172055 A1QUALCOMM Incorporated
Most cited
By later US patents
- Lower overhead method for data transmission using ATM and SCDMA over hybrid fiber coax cable plant683US 5,991,308 ATerayon Communication Systems, Inc. · 1999
- Hybrid concatenated codes and iterative decoding483US 6,023,783 ACalifornia Institute of Technology · 2000
- Apparatus and method for digital data transmission using orthogonal codes473US 6,356,555 B1Terayon Communications Systems, Inc. · 2002
- System and method for error correcting a received data stream in a concatenated system326US 6,029,264 AThe Trustees of Princeton University · 2000
- Apparatus and method for equalization in distributed digital data transmission systems321US 6,665,308 B1Terayon Communication Systems, Inc. · 2003