H04R 2400/01
Transducers used as a loudspeaker to generate sound aswell as a microphone
Official title: Transducers used as a loudspeaker to generate sound aswell as a microphone to detect sound
H04R2400/01 (Transducers used as a loudspeaker to generate sound aswell as a microphone) appears on 187 US grants and 253 published applications in this corpus.
Search patents in H04R- Granted patents
- 187
- Published applications
- 253
- Assignees
- 144
- Inventors
- 491
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 0 | 3 |
| 2003 | 0 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 4 |
| 2006 | 1 | 1 |
| 2007 | 0 | 4 |
| 2008 | 2 | 3 |
| 2009 | 0 | 1 |
| 2010 | 1 | 4 |
| 2011 | 3 | 5 |
| 2012 | 3 | 2 |
| 2013 | 3 | 7 |
| 2014 | 3 | 12 |
| 2015 | 5 | 7 |
| 2016 | 7 | 18 |
| 2017 | 16 | 19 |
| 2018 | 12 | 12 |
| 2019 | 16 | 16 |
| 2020 | 14 | 26 |
| 2021 | 22 | 24 |
| 2022 | 16 | 19 |
| 2023 | 22 | 19 |
| 2024 | 17 | 20 |
| 2025 | 10 | 11 |
| 2026 | 12 | 13 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- User identification with audio earbuds6 Oct 2026US 12,755,745 B2Intel Corporation
- Acoustic insert for earpiece4 Aug 2026US 12,701,354 B23M Innovative Properties Company
- Method of processing audio for playback of immersive audio23 Jun 2026US 12,666,213 B2Dolby Laboratories Licensing Corporation
- Audio speaker system using piezo diaphragm2 Jun 2026US 12,648,359 B2Diodes Incorporated
- Linear filtering for noise-suppressed speech detection12 May 2026US 12,626,717 B2Sonos, Inc.
- Method of processing audio for playback of immersive audio17 Sep 2026US 2026/0281643 A1Dolby Laboratories Licensing Corporation
- Electro-mechanical device comprising an electrically split array of moving elements, and methods of controlling thereof30 Jul 2026US 2026/0222732 A1
- Touch gesture control of an in-ear electrostatic acoustic device23 Jul 2026US 2026/0214368 A1Waves Audio Ltd.
- Planar-dynamic acoustic transducer9 Jul 2026US 2026/0197591 A1
- Mems element for moving a mass element of an acoustic transducer for generating and/or receiving acoustic signals, and acoustic transducer having such a mems element2 Jul 2026US 2026/0189857 A1
Most cited
By later US patents
- Loudspeaker position estimation330US 8,279,709 B2Bang & Olufsen A/S · 2012
- Cellular phone with high-quality sound reproduction capability198US 6,819,939 B2NEC Viewtechnology, Ltd. · 2004
- Method of performing measurements by means of an audio system comprising passive loudspeakers187US 8,270,620 B2The TC Group A/S · 2012
- Transducer system22US 9,820,055 B2Noveto Systems Ltd. · 2017
- Electronic earplug for providing communication and protection21US 9,198,800 B2Etymotic Research, Inc. · 2015