H04M 9/082
Using echo cancellers
Official title: {using echo cancellers (echo cancellers per se H04B3/23)}
H04M9/082 (Using echo cancellers) appears on 1,437 US grants and 1,261 published applications in this corpus.
Search patents in H04M- Granted patents
- 1,437
- Published applications
- 1,261
- Assignees
- 478
- Inventors
- 2,259
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 5 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 12 | 0 |
| 1995 | 20 | 0 |
| 1996 | 11 | 0 |
| 1997 | 28 | 0 |
| 1998 | 24 | 0 |
| 1999 | 21 | 0 |
| 2000 | 20 | 0 |
| 2001 | 23 | 4 |
| 2002 | 17 | 23 |
| 2003 | 35 | 35 |
| 2004 | 38 | 38 |
| 2005 | 37 | 43 |
| 2006 | 50 | 55 |
| 2007 | 25 | 57 |
| 2008 | 28 | 70 |
| 2009 | 20 | 58 |
| 2010 | 42 | 68 |
| 2011 | 50 | 46 |
| 2012 | 91 | 48 |
| 2013 | 77 | 71 |
| 2014 | 73 | 72 |
| 2015 | 84 | 73 |
| 2016 | 93 | 53 |
| 2017 | 85 | 48 |
| 2018 | 58 | 45 |
| 2019 | 56 | 54 |
| 2020 | 61 | 60 |
| 2021 | 39 | 45 |
| 2022 | 64 | 44 |
| 2023 | 25 | 55 |
| 2024 | 37 | 44 |
| 2025 | 42 | 32 |
| 2026 | 24 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Wearable device with blocked sensor detection6 Oct 2026US 12,756,983 B2Bose Corporation
- Tone and echo cancellation using two acoustic sound cancellers1 Sep 2026US 12,725,614 B2Sonos, Inc.
- Wearable device with speech enhancement25 Aug 2026US 12,718,830 B2Bose Corporation
- Spatially based adaptive filter for a double talk recovery method21 Jul 2026US 12,689,693 B2GM Global Technology Operations LLC
- Robust foreground/background filtering control for acoustic echo cancellation30 Jun 2026US 12,671,767 B2Dolby Laboratories Licensing Corporation
- Wideband doubletalk detection for optimization of acoustic echo cancellation1 Oct 2026US 2026/0303727 A1Shure Acquisition Holdings, Inc.
- Echo suppressor for use in two-way voice communication3 Sep 2026US 2026/0261617 A1GN Hearing A/S
- Systems and methods for integrated conferencing platform30 Jul 2026US 2026/0222494 A1Shure Acquisition Holdings, Inc.
- Hybrid digital signal processing-artificial intelligence acoustic echo cancellation for virtual conferences30 Jul 2026US 2026/0222495 A1Zoom Communications, Inc.
- Echo eliminating device without reference loop and method thereof23 Jul 2026US 2026/0212878 A1
Most cited
By later US patents
- Small array microphone for acoustic echo cancellation and noise suppression373US 7,003,099 B1Fortmedia, Inc. · 2006
- Multichannel acoustic echo reduction295US 8,385,557 B2Microsoft Corporation · 2013
- Detection of the speech activity of a source249US 6,707,910 B1Nokia Mobile Phones Ltd. · 2004
- Automatic volume attenuation for speech enabled devices218US 9,324,322 B1Amazon Technologies, Inc. · 2016
- Multichannel acoustic echo cancellation213US 9,659,555 B1Amazon Technologies, Inc. · 2017