H04M 9/085
Using digital techniques
Official title: {using digital techniques (H04M9/082 takes precedence)}
H04M9/085 (Using digital techniques) appears on 135 US grants and 102 published applications in this corpus.
Search patents in H04M- Granted patents
- 135
- Published applications
- 102
- Assignees
- 80
- Inventors
- 213
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 7 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 3 |
| 2008 | 0 | 1 |
| 2009 | 1 | 5 |
| 2010 | 1 | 4 |
| 2011 | 3 | 2 |
| 2012 | 5 | 3 |
| 2013 | 3 | 4 |
| 2014 | 5 | 2 |
| 2015 | 7 | 4 |
| 2016 | 7 | 11 |
| 2017 | 11 | 12 |
| 2018 | 9 | 7 |
| 2019 | 5 | 14 |
| 2020 | 19 | 8 |
| 2021 | 4 | 5 |
| 2022 | 0 | 1 |
| 2023 | 5 | 5 |
| 2024 | 2 | 3 |
| 2025 | 4 | 3 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Voice call control method and apparatus, computer-readable medium, and electronic device3 Mar 2026US 12,567,429 B2Tencent Technology (Shenzhen) Company Limited
- Distributed algorithm for automixing speech over wireless networks13 Jan 2026US 12,525,083 B2Shure Acquisition Holdings, Inc.
- Method and system for controlling echo cancellation23 Dec 2025US 12,506,836 B1Apple Inc.
- System and method for single channel distant speech processing14 Oct 2025US 12,444,423 B2Microsoft Technology Licensing, LLC
- Method and apparatus for switching main microphone, voice detection method and apparatus for microphone, microphone-loudspeaker integrated device, and readable storage medium16 Sep 2025US 12,418,747 B2Zhejiang Huachuang Vision Technology Co., Ltd.
- Voice authentication based on background audio3 Sep 2026US 2026/0261614 A1Wells Fargo Bank, N. A.
- Distributed algorithm for automixing speech over wireless networks23 Jul 2026US 2026/0212719 A1Shure Acquisition Holdings, Inc.
- System and method for audio limiting in call downlink algorithm17 Apr 2025US 2025/0124941 A1Harman International Industries, Incorporated
- Sound Localization for an Electronic Call17 Apr 2025US 2025/0126423 A1
- External noise-based microphone and sensor control method and electronic device9 Jan 2025US 2025/0016501 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Speakerphone using digitally compressed audio to control voice path gain86US 4,741,018 AMotorola, Inc. · 1988
- Post filter for spectral domain echo cancellers to handle non-linear echo components79US 8,620,232 B2Dialog Semiconductor GmbH · 2013
- Adaptive coupling equalization in beamforming-based communication systems59US 7,970,123 B2Mitel Networks Corporation · 2011
- Telephone with background volume control50US 4,829,565 A1989
- Speakerphone using digitally compressed audio to detect acoustic feedback49US 4,843,621 AMotorola, Inc. · 1989