H04R 2430/23
Direction finding using a sum-delay beam-former
H04R2430/23 (Direction finding using a sum-delay beam-former) appears on 548 US grants and 591 published applications in this corpus.
Search patents in H04R- Granted patents
- 548
- Published applications
- 591
- Assignees
- 236
- Inventors
- 1,034
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 5 |
| 2003 | 0 | 1 |
| 2004 | 2 | 3 |
| 2005 | 1 | 6 |
| 2006 | 5 | 8 |
| 2007 | 2 | 5 |
| 2008 | 0 | 3 |
| 2009 | 1 | 6 |
| 2010 | 8 | 6 |
| 2011 | 6 | 4 |
| 2012 | 5 | 7 |
| 2013 | 6 | 16 |
| 2014 | 9 | 18 |
| 2015 | 15 | 22 |
| 2016 | 29 | 36 |
| 2017 | 31 | 31 |
| 2018 | 34 | 38 |
| 2019 | 59 | 50 |
| 2020 | 45 | 54 |
| 2021 | 56 | 66 |
| 2022 | 64 | 59 |
| 2023 | 58 | 57 |
| 2024 | 52 | 42 |
| 2025 | 39 | 28 |
| 2026 | 16 | 20 |
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 output device and components thereof4 Aug 2026US 12,701,349 B2Shenzhen Shokz Co., Ltd.
- Spatial audio communication between devices with speaker array and/or microphone array5 May 2026US 12,621,625 B2Google Inc.
- Detecting active speakers using head detection14 Apr 2026US 12,604,125 B2Cisco Technology, Inc.
- Systems and methods of user localization31 Mar 2026US 12,593,167 B2Sonos, Inc.
- Tunable acoustic zone detection27 Aug 2026US 2026/0255102 A1
- Beam-forming function implementation method and system2 Jul 2026US 2026/0189849 A1Goertek Inc.
- Hearable device focus on a moving sound source25 Jun 2026US 2026/0181317 A1Sony Group Corporation
- Acoustic tracking system25 Jun 2026US 2026/0181320 A19374-0587 Quebec Inc.
- Hearing device comprising a directional system configured to adaptively optimize sound from multiple target positions18 Jun 2026US 2026/0172760 A1Oticon A/S
Most cited
By later US patents
- Virtual reality television system255US 5,714,997 A1998
- Noise suppression for a wireless communication device153US 7,206,418 B2Fortemedia, Inc. · 2007
- Audio gait detection and identification136US 10,170,135 B1Intel Corporation · 2019
- Trigger word based beam selection135US 10,304,475 B1Amazon Technologies, Inc. · 2019
- Mobile radio set comprising a speech processing arrangement125US 5,602,962 AU. S. Philips Corporation · 1997