G10L 25/78
Detection of presence or absence of voice signals
Official title: Detection of presence or absence of voice signals (switching of direction of transmission by voice frequency in two-way loud-speaking telephone systems H04M9/10)
G10L25/78 (Detection of presence or absence of voice signals) appears on 4,320 US grants and 4,799 published applications in this corpus.
Search patents in G10L- Granted patents
- 4,320
- Published applications
- 4,799
- Assignees
- 1,250
- Inventors
- 8,494
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 8 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 7 | 0 |
| 1983 | 5 | 0 |
| 1984 | 5 | 0 |
| 1985 | 12 | 0 |
| 1986 | 5 | 0 |
| 1987 | 11 | 0 |
| 1988 | 5 | 0 |
| 1989 | 9 | 0 |
| 1990 | 11 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 11 | 0 |
| 1994 | 19 | 0 |
| 1995 | 8 | 0 |
| 1996 | 16 | 0 |
| 1997 | 25 | 0 |
| 1998 | 37 | 0 |
| 1999 | 23 | 0 |
| 2000 | 24 | 0 |
| 2001 | 24 | 9 |
| 2002 | 27 | 47 |
| 2003 | 24 | 69 |
| 2004 | 30 | 47 |
| 2005 | 22 | 49 |
| 2006 | 36 | 44 |
| 2007 | 40 | 60 |
| 2008 | 30 | 72 |
| 2009 | 33 | 56 |
| 2010 | 44 | 53 |
| 2011 | 47 | 84 |
| 2012 | 73 | 111 |
| 2013 | 74 | 105 |
| 2014 | 93 | 115 |
| 2015 | 124 | 202 |
| 2016 | 190 | 193 |
| 2017 | 212 | 275 |
| 2018 | 249 | 302 |
| 2019 | 321 | 376 |
| 2020 | 340 | 404 |
| 2021 | 346 | 422 |
| 2022 | 381 | 438 |
| 2023 | 383 | 428 |
| 2024 | 379 | 381 |
| 2025 | 352 | 247 |
| 2026 | 185 | 210 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Wearable assistive device6 Oct 2026US 12,755,533 B2
- Technology and systems to develop reading fluency through an interactive, multi-sensory reading experience6 Oct 2026US 12,755,645 B2
- Audio signal processing device and operating method therefor6 Oct 2026US 12,755,750 B2Samsung Electronics Co., Ltd.
- Multi-sensor devices and systems for evaluating vehicle conditions29 Sep 2026US 12,749,500 B2ACV Auctions Inc.
- Methods and systems for sleep management22 Sep 2026US 12,741,117 B2ResMed Sensor Technologies Limited
- Visual state indication during real-time timevoice interaction with a generative response engine8 Oct 2026US 2026/0311676 A1OpenAI OpCo, LLC
- Method for determining speech dataset, electronic device and storge medium8 Oct 2026US 2026/0311679 A1Baidu International Technology (Shenzhen) Co., Ltd.
- Real time voice mode generative response engine with interruption detection8 Oct 2026US 2026/0311693 A1OpenAI OpCo, LLC
- Method for efficient transcription with selective transcription sequences8 Oct 2026US 2026/0311703 A1Mitel Networks Corporation
- Real time voice mode generative response engine with turn detection8 Oct 2026US 2026/0311720 A1OpenAI OpCo, LLC
Most cited
By later US patents
- Variable rate vocoder458US 5,414,796 AQUALCOMM Incorporated · 1995
- Natural language interface control system448US 7,447,635 B1Sony Corporation · 2008
- Sound source localization using multiple microphone arrays414US 9,489,948 B1Amazon Technologies, Inc. · 2016
- Pre-wakeword speech processing379US 10,192,546 B1Amazon Technologies, Inc. · 2019
- Enhanced endpoint detection for speech recognition329US 9,437,186 B1Amazon Technologies, Inc. · 2016