H03M 13/256
With trellis coding
Official title: {with trellis coding, e.g. with convolutional codes and TCM}
H03M13/256 (With trellis coding) appears on 497 US grants and 386 published applications in this corpus.
Search patents in H03M- Granted patents
- 497
- Published applications
- 386
- Assignees
- 155
- Inventors
- 588
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 9 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 14 | 0 |
| 1999 | 14 | 0 |
| 2000 | 17 | 0 |
| 2001 | 21 | 11 |
| 2002 | 17 | 20 |
| 2003 | 18 | 20 |
| 2004 | 14 | 24 |
| 2005 | 13 | 24 |
| 2006 | 27 | 14 |
| 2007 | 16 | 31 |
| 2008 | 17 | 16 |
| 2009 | 20 | 38 |
| 2010 | 24 | 23 |
| 2011 | 20 | 10 |
| 2012 | 38 | 17 |
| 2013 | 21 | 13 |
| 2014 | 29 | 14 |
| 2015 | 22 | 21 |
| 2016 | 14 | 15 |
| 2017 | 16 | 9 |
| 2018 | 14 | 12 |
| 2019 | 13 | 9 |
| 2020 | 12 | 11 |
| 2021 | 10 | 10 |
| 2022 | 13 | 8 |
| 2023 | 3 | 1 |
| 2024 | 6 | 6 |
| 2025 | 2 | 3 |
| 2026 | 3 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- State reduction for sequence estimation based on signal quality29 Sep 2026US 12,750,162 B2QUALCOMM Incorporated
- Transmitter and method for transmitting data block in wireless communication system23 Jun 2026US 12,665,711 B2Electronics and Telecommunications Research Institute
- Information processing method and communication apparatus for improving channel encoding between devices3 Feb 2026US 12,542,621 B2Huawei Technologies Co., Ltd.
- Forward error correction encoding with reliability differentiation30 Sep 2025US 12,432,011 B2QUALCOMM Incorporated
- Codes to detect insertion and deletion errors in a dense storage medium5 Aug 2025US 12,380,338 B2Microsoft Technology Licensing, LLC
- Transmitter and method for transmitting data block in wireless communication system8 Oct 2026US 2026/0312754 A1Electronics and Telecommunications Research Institute
- 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
- Kalman filter based phase-locked loop with re-encoding based phase detector16 Apr 2026US 2026/0106782 A1Silicon Laboratories Inc.
- Forward error correction encoding and modulation with reliability differentiation19 Mar 2026US 2026/0081721 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
- Apparatus and method for equalization in distributed digital data transmission systems321US 6,665,308 B1Terayon Communication Systems, Inc. · 2003
- Serial-concatenated turbo codes223US 6,473,878 B1Lucent Technologies Inc. · 2002