H04R 25/356
Amplitude
Official title: {Amplitude, e.g. amplitude shift or compression}
H04R25/356 (Amplitude) appears on 439 US grants and 408 published applications in this corpus.
Search patents in H04R- Granted patents
- 439
- Published applications
- 408
- Assignees
- 187
- Inventors
- 696
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 6 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 11 | 0 |
| 1990 | 7 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 6 | 0 |
| 1997 | 4 | 0 |
| 1998 | 7 | 0 |
| 1999 | 2 | 0 |
| 2000 | 8 | 0 |
| 2001 | 4 | 1 |
| 2002 | 6 | 16 |
| 2003 | 5 | 17 |
| 2004 | 8 | 11 |
| 2005 | 6 | 9 |
| 2006 | 8 | 9 |
| 2007 | 12 | 11 |
| 2008 | 5 | 7 |
| 2009 | 7 | 10 |
| 2010 | 4 | 5 |
| 2011 | 11 | 13 |
| 2012 | 15 | 10 |
| 2013 | 12 | 18 |
| 2014 | 12 | 13 |
| 2015 | 17 | 20 |
| 2016 | 23 | 27 |
| 2017 | 19 | 35 |
| 2018 | 28 | 20 |
| 2019 | 28 | 19 |
| 2020 | 20 | 24 |
| 2021 | 21 | 20 |
| 2022 | 22 | 19 |
| 2023 | 14 | 22 |
| 2024 | 19 | 14 |
| 2025 | 15 | 23 |
| 2026 | 7 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of fitting a hearing device and fitting device for fitting the hearing device11 Aug 2026US 12,702,330 B2Sivantos Pte.Ltd
- Wearable hearing assist device with sound pressure level shifting26 May 2026US 12,641,378 B2Bose Corporation
- Method for customizing a hearing apparatus, hearing apparatus and computer program product19 May 2026US 12,634,639 B2Sivantod Pte. Ltd.
- Real-time Multirate Multiband Amplification for hearing aids12 May 2026US 12,627,936 B2The Regents of the University of California
- Side-by-side comparison of hearing device output based on physical coupling to device under simulation7 Apr 2026US 12,598,432 B2Earlens Corporation
- Wearable hearing assist device with sound pressure level shifting10 Sep 2026US 2026/0270626 A1Bose Corporation
- Method of fitting a hearing device to a user, and fitting system10 Sep 2026US 2026/0270633 A1Sonova AG
- Method for audio processing in a hearing device to provide for a gain adjustment3 Sep 2026US 2026/0261807 A1Sonova AG
- Switching a Hearing Device Between Two Sets of Actuator Strengths20 Aug 2026US 2026/0247084 A1Sonova AG
- Hearing-assist systems and methods for audio quality enhancements in performance venues23 Jul 2026US 2026/0214385 A1The Epstein Hear Us Now Foundation
Most cited
By later US patents
- Wired open ear canal earpiece384US 6,181,801 B2Resound Corporation · 2001
- Adaptive, programmable signal processing hearing aid266US 4,887,299 ANicolet Instrument Corporation · 1989
- Filterbank structure and method for filtering and separating an information signal into different bands, particularly for audio signal in hearing aids227US 6,236,731 B1dspfactory Ltd. · 2001
- Apparatus for and method of filtering in an digital hearing aid, including an application specific integrated circuit and a programmable digital signal processor212US 6,240,192 B1dspfactory Ltd. · 2001
- System output control method and apparatus202US 7,027,981 B22006