H03G 5/00
Tone control or bandwidth control in amplifiers
H03G5/00 (Tone control or bandwidth control in amplifiers) appears on 1,882 US grants and 1,493 published applications in this corpus.
Search patents in H03G- Granted patents
- 1,882
- Published applications
- 1,493
- Assignees
- 666
- Inventors
- 2,933
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 23 | 0 |
| 1977 | 18 | 0 |
| 1978 | 20 | 0 |
| 1979 | 9 | 0 |
| 1980 | 13 | 0 |
| 1981 | 20 | 0 |
| 1982 | 20 | 0 |
| 1983 | 24 | 0 |
| 1984 | 22 | 0 |
| 1985 | 20 | 0 |
| 1986 | 22 | 0 |
| 1987 | 21 | 0 |
| 1988 | 21 | 0 |
| 1989 | 30 | 0 |
| 1990 | 21 | 0 |
| 1991 | 23 | 0 |
| 1992 | 13 | 0 |
| 1993 | 24 | 0 |
| 1994 | 22 | 0 |
| 1995 | 19 | 0 |
| 1996 | 30 | 0 |
| 1997 | 17 | 0 |
| 1998 | 31 | 0 |
| 1999 | 14 | 0 |
| 2000 | 12 | 0 |
| 2001 | 9 | 4 |
| 2002 | 8 | 17 |
| 2003 | 12 | 20 |
| 2004 | 14 | 42 |
| 2005 | 15 | 35 |
| 2006 | 33 | 21 |
| 2007 | 15 | 24 |
| 2008 | 17 | 52 |
| 2009 | 12 | 23 |
| 2010 | 25 | 27 |
| 2011 | 22 | 35 |
| 2012 | 41 | 32 |
| 2013 | 29 | 56 |
| 2014 | 30 | 68 |
| 2015 | 59 | 69 |
| 2016 | 88 | 93 |
| 2017 | 119 | 101 |
| 2018 | 124 | 133 |
| 2019 | 149 | 117 |
| 2020 | 128 | 116 |
| 2021 | 87 | 100 |
| 2022 | 103 | 81 |
| 2023 | 77 | 82 |
| 2024 | 68 | 69 |
| 2025 | 57 | 44 |
| 2026 | 32 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Methods and apparatus for audio equalization based on variant selection6 Oct 2026US 12,755,153 B2Gracenote, Inc.
- Automatic volume leveling6 Oct 2026US 12,756,370 B2Bose Corporation
- Playback device pairing22 Sep 2026US 12,745,041 B2Sonos, Inc.
- Post-processor, pre-processor, audio encoder, audio decoder and related methods for enhancing transient processing15 Sep 2026US 12,738,286 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Acoustic processing device and acoustic processing method8 Sep 2026US 12,732,147 B2Faurecia Clarion Electronics Co., Ltd.
- Signal transmission circuit for high frequency transmission10 Sep 2026US 2026/0269799 A1ASMedia Technology Inc.
- Context aware audio capture and rendering20 Aug 2026US 2026/0247093 A1Dolby Laboratories Licensing Corporation
- Techniques for automatic equalization of audio23 Jul 2026US 2026/0213720 A1Harman Becker Automotive Systems GmbH
- Hearing-assist systems and methods for audio quality enhancements in performance venues23 Jul 2026US 2026/0214385 A1The Epstein Hear Us Now Foundation
- Signal processing system and electric device16 Jul 2026US 2026/0205085 A1AAC Technologies PTE.Ltd.
Most cited
By later US patents
- Shaping sound responsive to speaker orientation476US 9,042,556 B2Sonos, Inc. · 2015
- Automatic multichannel equalization control system for a multimedia computer404US 6,704,421 B1ATI Technologies, Inc. · 2004
- Method and apparatus for automatically normalizing a perceived volume level in a digitally encoded file389US 7,072,477 B1Apple Computer, Inc. · 2006
- Speaker equalization for mobile devices370US 9,300,266 B2QUALCOMM Incorporated · 2016
- In-room acoustic magnitude response smoothing via summation of correction signals327US 8,194,874 B2Polk Audio, LLC · 2012