H04R 25/407
Circuits for combining signals of a plurality of transducers
Official title: {Circuits for combining signals of a plurality of transducers}
H04R25/407 (Circuits for combining signals of a plurality of transducers) appears on 1,013 US grants and 1,157 published applications in this corpus.
Search patents in H04R- Granted patents
- 1,013
- Published applications
- 1,157
- Assignees
- 282
- Inventors
- 1,374
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 7 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 8 | 6 |
| 2002 | 8 | 19 |
| 2003 | 12 | 19 |
| 2004 | 10 | 26 |
| 2005 | 13 | 30 |
| 2006 | 26 | 15 |
| 2007 | 20 | 32 |
| 2008 | 19 | 27 |
| 2009 | 14 | 38 |
| 2010 | 16 | 38 |
| 2011 | 17 | 27 |
| 2012 | 41 | 33 |
| 2013 | 38 | 40 |
| 2014 | 37 | 50 |
| 2015 | 48 | 44 |
| 2016 | 56 | 57 |
| 2017 | 61 | 56 |
| 2018 | 60 | 72 |
| 2019 | 70 | 55 |
| 2020 | 60 | 55 |
| 2021 | 60 | 82 |
| 2022 | 58 | 75 |
| 2023 | 69 | 69 |
| 2024 | 46 | 67 |
| 2025 | 68 | 67 |
| 2026 | 47 | 58 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ear-worn device with neural network-based noise modification and/or spatial focusing29 Sep 2026US 12,750,623 B2Fortell Research Inc.
- Hearing device with foveated bearforming and related method22 Sep 2026US 12,745,047 B2GN Hearing A/S
- Microphone assembly and method for providing hearing assistance with optimized directivity22 Sep 2026US 12,745,048 B2Sonova AG
- Audio playback management of multiple concurrent connections15 Sep 2026US 12,738,966 B2Sonos, Inc.
- Magnified binaural cues in a binaural hearing system15 Sep 2026US 12,739,573 B2Cochlear Limited
- Feedback Canceller in a Hearing Assistance System8 Oct 2026US 2026/0313299 A1Legato Audio, Inc.
- Method and system for use of hearing prosthesis for linguistic evaluation1 Oct 2026US 2026/0295254 A1Cochlear Limited
- Hearing aid or hearing aid system comprising a sound source localization estimator24 Sep 2026US 2026/0292409 A1Oticon A/S
- Implantable microphone management17 Sep 2026US 2026/0281613 A1Cochlear Limited
- Ultra-low latency nfmi communication protocol17 Sep 2026US 2026/0281629 A1Semiconductor Components Industries, LLC
Most cited
By later US patents
- Hearing aid having plural microphones and a microphone switching system227US 5,524,056 AEtymotic Research, Inc. · 1996
- Filterbank structure and method for filtering and separating an information signal into different bands, particularly for audio signal in hearing aids227US 6,236,731 B1dspfactory Ltd. · 2001
- Apparatus for and method of filtering in an digital hearing aid, including an application specific integrated circuit and a programmable digital signal processor212US 6,240,192 B1dspfactory Ltd. · 2001
- Determining speaker direction using a spherical microphone array204US 9,560,441 B1Amazon Technologies, Inc. · 2017
- Directional acoustic signal processor and method therefor195US 6,002,776 AInterval Research Corporation · 1999