G10L 15/02
Feature extraction for speech recognition
Official title: Feature extraction for speech recognition; Selection of recognition unit
G10L15/02 (Feature extraction for speech recognition) appears on 3,232 US grants and 3,597 published applications in this corpus.
Search patents in G10L- Granted patents
- 3,232
- Published applications
- 3,597
- Assignees
- 1,034
- Inventors
- 6,849
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 7 | 0 |
| 1989 | 7 | 0 |
| 1990 | 5 | 0 |
| 1991 | 8 | 0 |
| 1992 | 6 | 0 |
| 1993 | 9 | 0 |
| 1994 | 5 | 0 |
| 1995 | 7 | 0 |
| 1996 | 13 | 0 |
| 1997 | 24 | 0 |
| 1998 | 41 | 0 |
| 1999 | 27 | 0 |
| 2000 | 16 | 0 |
| 2001 | 31 | 10 |
| 2002 | 20 | 45 |
| 2003 | 22 | 35 |
| 2004 | 24 | 50 |
| 2005 | 19 | 50 |
| 2006 | 41 | 42 |
| 2007 | 32 | 41 |
| 2008 | 38 | 47 |
| 2009 | 27 | 62 |
| 2010 | 35 | 49 |
| 2011 | 42 | 43 |
| 2012 | 57 | 54 |
| 2013 | 57 | 57 |
| 2014 | 87 | 73 |
| 2015 | 47 | 121 |
| 2016 | 123 | 147 |
| 2017 | 154 | 212 |
| 2018 | 172 | 295 |
| 2019 | 251 | 281 |
| 2020 | 290 | 319 |
| 2021 | 272 | 355 |
| 2022 | 268 | 292 |
| 2023 | 273 | 283 |
| 2024 | 293 | 269 |
| 2025 | 216 | 191 |
| 2026 | 152 | 174 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods to identify products from verbal utterances29 Sep 2026US 12,749,477 B2Walmart Apollo, LLC
- Automatic speech recognition29 Sep 2026US 12,749,480 B2Amazon Technologies, Inc.
- System and method for automatic alignment of phonetic content for real-time accent conversion29 Sep 2026US 12,749,494 B2Sanas.Ai Inc.
- Voice detection by multiple devices22 Sep 2026US 12,744,035 B2Sonos, Inc.
- System and method for change point detection in multi-media multi-person interactions22 Sep 2026US 12,744,037 B2Xerox Corporation
- On-device multi-modal ai with synchronized face and full-body animation for 3d virtual assistants8 Oct 2026US 2026/0311411 A1Samsung Electronics Co., Ltd.
- Method for efficient transcription with selective transcription sequences8 Oct 2026US 2026/0311703 A1Mitel Networks Corporation
- Systems and methods for resolving speech ambiguity with visualization1 Oct 2026US 2026/0301739 A1
- Publish and subscribe call center architecture1 Oct 2026US 2026/0303701 A1Intrado Life & Safety, Inc.
- System24 Sep 2026US 2026/0285330 A1SoftBank Group Corp.
Most cited
By later US patents
- Dynamic speech sharpening463US 7,983,917 B2VoiceBox Technologies, Inc. · 2011
- Dynamic speech sharpening459US 8,069,046 B2VoiceBox Technologies, Inc. · 2011
- Automated directory assistance system using word recognition and phoneme processing method454US 5,638,425 ABell Atlantic Network Services, Inc. · 1997
- Audio content search engine441US 7,983,915 B2Sonic Foundry, Inc. · 2011
- Dynamic speech sharpening434US 7,634,409 B2VoiceBox Technologies, Inc. · 2009