H04R 2430/20
Processing of the output signals of the acoustic transducers of an array
Official title: Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic (H04R2203/12 takes precedence)
H04R2430/20 (Processing of the output signals of the acoustic transducers of an array) appears on 1,901 US grants and 2,123 published applications in this corpus.
Search patents in H04R- Granted patents
- 1,901
- Published applications
- 2,123
- Assignees
- 631
- Inventors
- 3,286
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 1 | 0 |
| 2000 | 6 | 0 |
| 2001 | 3 | 2 |
| 2002 | 1 | 9 |
| 2003 | 3 | 7 |
| 2004 | 3 | 10 |
| 2005 | 4 | 19 |
| 2006 | 10 | 24 |
| 2007 | 9 | 36 |
| 2008 | 6 | 28 |
| 2009 | 8 | 36 |
| 2010 | 21 | 39 |
| 2011 | 34 | 43 |
| 2012 | 42 | 49 |
| 2013 | 44 | 62 |
| 2014 | 44 | 54 |
| 2015 | 62 | 65 |
| 2016 | 86 | 94 |
| 2017 | 122 | 143 |
| 2018 | 135 | 137 |
| 2019 | 171 | 166 |
| 2020 | 152 | 167 |
| 2021 | 171 | 240 |
| 2022 | 201 | 188 |
| 2023 | 185 | 188 |
| 2024 | 162 | 136 |
| 2025 | 138 | 103 |
| 2026 | 60 | 78 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Local and cloud speech recognition8 Sep 2026US 12,731,589 B2Roku, Inc.
- Audio play optimization method, device and readable storage medium8 Sep 2026US 12,732,747 B2Goertek Technology Co., Ltd.
- Speaker control method and device, terminal equipment and computer-readable storage medium1 Sep 2026US 12,726,758 B2AAC Technologies (Nanjing) Co., Ltd.
- In-ear functional near-infrared spectroscopy for cognitive load estimation25 Aug 2026US 12,714,342 B2Meta Platforms Technologies, LLC
- Systems and methods for voice reception and detection25 Aug 2026US 12,718,829 B2Polaris Industries Inc.
- Electronic apparatus and control method thereof1 Oct 2026US 2026/0299123 A1Samsung Electronics Co., Ltd.
- Separation method and apparatus for separating far-field and near-field voice and wearable device17 Sep 2026US 2026/0279377 A1AAC Acoustic Technologies (Shanghai) Co., Ltd.
- Ambisonic microphone10 Sep 2026US 2026/0270612 A1Shure Acquisition Holdings, Inc.
- Concentric circular microphone arrays with 3d steerable beamformers10 Sep 2026US 2026/0270614 A1Northwestern Polytechnical University
- Methods and systems for smart acoustic multimodal interfaces27 Aug 2026US 2026/0252197 A1University of Rochester
Most cited
By later US patents
- Sound source localization using multiple microphone arrays414US 9,489,948 B1Amazon Technologies, Inc. · 2016
- Locating an audio source355US 6,593,956 B1Polycom, Inc. · 2003
- Transformation inversion to reduce the effect of room acoustics350US 9,615,171 B1Amazon Technologies, Inc. · 2017
- Systems, methods, and apparatus for enhanced acoustic imaging347US 8,965,546 B2QUALCOMM Incorporated · 2015
- Electronic apparatus for generating beamformed audio signals with steerable nulls326US 8,433,076 B2Motorola Mobility LLC · 2013