H04L 25/03203
Trellis search techniques
Official title: {Trellis search techniques}
H04L25/03203 (Trellis search techniques) appears on 511 US grants and 463 published applications in this corpus.
Search patents in H04L- Granted patents
- 511
- Published applications
- 463
- Assignees
- 215
- Inventors
- 831
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 4 | 0 |
| 1999 | 7 | 0 |
| 2000 | 9 | 0 |
| 2001 | 4 | 2 |
| 2002 | 9 | 9 |
| 2003 | 6 | 17 |
| 2004 | 14 | 21 |
| 2005 | 6 | 21 |
| 2006 | 12 | 18 |
| 2007 | 25 | 23 |
| 2008 | 17 | 40 |
| 2009 | 15 | 44 |
| 2010 | 33 | 44 |
| 2011 | 32 | 36 |
| 2012 | 49 | 30 |
| 2013 | 51 | 19 |
| 2014 | 45 | 21 |
| 2015 | 34 | 16 |
| 2016 | 20 | 17 |
| 2017 | 24 | 18 |
| 2018 | 8 | 13 |
| 2019 | 20 | 11 |
| 2020 | 11 | 9 |
| 2021 | 7 | 4 |
| 2022 | 7 | 7 |
| 2023 | 9 | 6 |
| 2024 | 9 | 7 |
| 2025 | 4 | 3 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Balanced coding scheme11 Aug 2026US 12,706,692 B2QUALCOMM Incorporated
- Sequence detection device using maximum likelihood sequence detection with programmable branch metric computation reduction and associated sequence detection method14 Jul 2026US 12,683,836 B2Airoha Technology Corp.
- Sequence detection device using maximum likelihood sequence detection with programmable branch metric computation reduction and associated sequence detection method26 May 2026US 12,640,966 B2Airoha Technology Corp.
- Soft information generation for concatenated forward error correction in digiral signal processing31 Mar 2026US 12,592,722 B2Avago Technologies International Sales Pte. Limited
- Decision feed forward equalization for partial response equalized signal including pre-cursor cancelation23 Sep 2025US 12,425,277 B2NVIDIA Corporation
- Soft information generation for concatenated forward error correction in digital signal processing23 Jul 2026US 2026/0213774 A1Avago Technologies International Sales Pte. Limited
- State reduction for sequence estimation18 Jun 2026US 2026/0172143 A1QUALCOMM Incorporated
- State reduction for sequence estimation based on signal quality18 Jun 2026US 2026/0172144 A1QUALCOMM Incorporated
- Sequence detection device using maximum likelihood sequence detection with programmable branch metric computation reduction and associated sequence detection method14 May 2026US 2026/0135738 A1Airoha Technology Corp.
- Sequence detection device using maximum likelihood sequence detection with programmable branch metric computation reduction and associated sequence detection method7 May 2026US 2026/0128930 A1Airoha Technology Corp.
Most cited
By later US patents
- Cellular/satellite communications system with improved frequency re-use360US 5,555,257 AEricsson GE Mobile Communications Inc. · 1996
- Cellular/satellite communications system with improved frequency re-use246US 5,848,060 AEricsson Inc. · 1998
- Cellular/satellite communications systems with improved frequency re-use212US 5,812,947 AEricsson Inc. · 1998
- Cellular/satellite communications system with improved frequency re-use176US 5,631,898 AEricsson Inc. · 1997
- Apparatus and method for beamforming in a changing-interference environment176US 6,141,567 AArrayComm, Inc. · 2000