H03G 7/007
Volume compression or expansion in amplifiers: of digital or coded signals
Official title: {of digital or coded signals}
H03G7/007 (Volume compression or expansion in amplifiers: of digital or coded signals) appears on 501 US grants and 475 published applications in this corpus.
Search patents in H03G- Granted patents
- 501
- Published applications
- 475
- Assignees
- 227
- Inventors
- 770
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 9 | 0 |
| 1997 | 3 | 0 |
| 1998 | 9 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 1 |
| 2002 | 3 | 16 |
| 2003 | 2 | 10 |
| 2004 | 9 | 10 |
| 2005 | 9 | 11 |
| 2006 | 5 | 9 |
| 2007 | 5 | 4 |
| 2008 | 7 | 10 |
| 2009 | 8 | 14 |
| 2010 | 7 | 24 |
| 2011 | 3 | 7 |
| 2012 | 17 | 20 |
| 2013 | 24 | 13 |
| 2014 | 14 | 20 |
| 2015 | 18 | 25 |
| 2016 | 25 | 32 |
| 2017 | 45 | 36 |
| 2018 | 39 | 35 |
| 2019 | 37 | 29 |
| 2020 | 26 | 27 |
| 2021 | 20 | 27 |
| 2022 | 30 | 26 |
| 2023 | 24 | 16 |
| 2024 | 28 | 27 |
| 2025 | 15 | 17 |
| 2026 | 3 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dynamic audio normalization process8 Sep 2026US 12,732,148 B2Comcast Cable Communications, LLC
- System and method for non-destructively normalizing loudness of audio signals within portable devices21 Jul 2026US 12,688,861 B2Dolby International AB
- Power-adaptive active noise reduction (ANR) headset6 Jan 2026US 12,518,731 B2Bose Corporation
- Rendering method of preventing object-based audio from clipping and apparatus for performing the same30 Dec 2025US 12,512,802 B2Electronics and Telecommunications Research Institute
- Frontend audio capture for video conferencing applications25 Nov 2025US 12,482,486 B2Zoom Communications, Inc.
- Adaptive dynamic range control13 Aug 2026US 2026/0238916 A1Marshall Group AB (Publ)
- Dialog Intelligibility Enhancement Method and System6 Aug 2026US 2026/0229243 A1DTS, Inc.
- System and method for audio peak limiting16 Jul 2026US 2026/0205084 A1Harman International Industries, Incorporated
- Automatic Classification of Audio Content as Either Primarily Speech or Primarily Non-Speech, to Facilitate Dynamic Application of Dialogue Enhancement11 Jun 2026US 2026/0162667 A1Roku, Inc.
- System for extending audio dynamic range using two-channel analog-to-digital converters28 May 2026US 2026/0149427 A1Harman International Industries, Incorporated
Most cited
By later US patents
- Method and system for selectively and variably attenuating audio data260US 6,498,855 B1International Business Machines Corporation · 2002
- Digital audio limiter231US 5,579,404 ADolby Laboratories Licensing Corporation · 1996
- Output level control apparatus224US 4,926,485 APioneer Electronic Corporation · 1990
- System output control method and apparatus202US 7,027,981 B22006
- Content aware audio ducking199US 9,536,541 B2Apple Inc. · 2017