H04R 3/10
Of variable resistance microphones
Official title: of variable resistance microphones
H04R3/10 (Of variable resistance microphones) appears on 9 US grants and 9 published applications in this corpus.
Search patents in H04R- Granted patents
- 9
- Published applications
- 9
- Assignees
- 7
- Inventors
- 26
- Latest grant
- 24 May 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 2 | 0 |
| 2016 | 0 | 0 |
| 2017 | 2 | 1 |
| 2018 | 0 | 3 |
| 2019 | 1 | 0 |
| 2020 | 1 | 2 |
| 2021 | 1 | 2 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Microphone assembly24 May 2022US 11,338,324 B2Knowles Electronics, LLC
- Artificial cochlea22 Jun 2021US 11,042,346 B2International Business Machines Corporation
- Real-time feedback during audio recording, and related devices and systems26 May 2020US 10,665,250 B2Apple Inc.
- Digital microphone and control method therefor2 Apr 2019US 10,250,980 B2Fortemedia, Inc.
- Amplification circuit and method of compensating for voltage offset of inputs7 Nov 2017US 9,813,034 B2Marvell World Trade Ltd.
- Microphone assembly4 Mar 2021US 2021/0060608 A1Knowles Electronics, LLC
- Artificial cochlea4 Feb 2021US 2021/0034320 A1International Business Machines Corporation
- Ultra-low distortion microphone buffer25 Jun 2020US 2020/0204926 A1
- Real-time feedback during audio recording, and related devices and systems2 Apr 2020US 2020/0105291 A1Apple Inc.
- Adaptive-snr ultra-low-power ultra-low-noise microphone27 Dec 2018US 2018/0375482 A1
Most cited
By later US patents
- Active phantom-powered ribbon microphone with switchable proximity effect response filtering for voice and music applications4US 9,210,508 B12015
- Carbon microphone linearization technique2US 4,476,348 AAnderson Jacobson, Inc. · 1984
- Digital microphone and control method therefor1US 10,250,980 B2Fortemedia, Inc. · 2019
- Amplification circuit and method of compensating for voltage offset of inputs1US 9,813,034 B2Marvell World Trade Ltd. · 2017
- Active phantom-powered ribbon microphone with switchable proximity effect response filtering for voice and music applications1US 9,813,791 B12017