H04R 2430/25
Array processing for suppression of unwanted side-lobes in directivity characteristics
Official title: Array processing for suppression of unwanted side-lobes in directivity characteristics, e.g. a blocking matrix
H04R2430/25 (Array processing for suppression of unwanted side-lobes in directivity characteristics) appears on 216 US grants and 234 published applications in this corpus.
Search patents in H04R- Granted patents
- 216
- Published applications
- 234
- Assignees
- 108
- Inventors
- 419
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 3 |
| 2006 | 1 | 2 |
| 2007 | 0 | 10 |
| 2008 | 2 | 3 |
| 2009 | 1 | 3 |
| 2010 | 3 | 2 |
| 2011 | 6 | 5 |
| 2012 | 5 | 9 |
| 2013 | 2 | 5 |
| 2014 | 6 | 8 |
| 2015 | 10 | 5 |
| 2016 | 10 | 10 |
| 2017 | 16 | 18 |
| 2018 | 11 | 13 |
| 2019 | 24 | 16 |
| 2020 | 12 | 13 |
| 2021 | 23 | 40 |
| 2022 | 24 | 23 |
| 2023 | 22 | 14 |
| 2024 | 20 | 10 |
| 2025 | 11 | 11 |
| 2026 | 6 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Audio enhancement method and apparatus, and computer storage medium25 Aug 2026US 12,718,831 B2Orka Health Co., Ltd.
- Acoustic configuration based on radio frequency sensing31 Mar 2026US 12,593,191 B2QUALCOMM Incorporated
- Method for operating a hearing system and hearing system24 Mar 2026US 12,587,797 B2Sivantos Pte.Ltd
- Audio processing10 Feb 2026US 12,549,896 B2Neatframe Limited
- Speakerphone with beamformer-based conference characterization and related methods3 Feb 2026US 12,543,003 B2Gn Audio A/S
- 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.
- Echo eliminating device without reference loop and method thereof23 Jul 2026US 2026/0212878 A1
- Hearing device comprising a transmitter11 Jun 2026US 2026/0164196 A1Oticon A/S
- Array Pickup Method and Apparatus Capable of Steplessly Adjusting Pickup Direction28 May 2026US 2026/0149920 A1Shenzhen Bajin Technology Co., Ltd.
- Anti-Feedback Audio Device With Dipole Speaker And Neural Network(S)30 Apr 2026US 2026/0122423 A1Sony Interactive Entertainment Inc.
Most cited
By later US patents
- Multichannel acoustic echo cancellation213US 9,659,555 B1Amazon Technologies, Inc. · 2017
- Separation of target acoustic signals in a multi-transducer arrangement199US 7,099,821 B2SoftMax, Inc. · 2006
- Signal quality beam selection173US 9,973,849 B1Amazon Technologies, Inc. · 2018
- Trigger word based beam selection135US 10,304,475 B1Amazon Technologies, Inc. · 2019
- Headset for separation of speech signals in a noisy environment99US 7,983,907 B2SoftMax, Inc. · 2011