H04M 9/10
With switching of direction of transmission by voice frequency
Official title: with switching of direction of transmission by voice frequency
H04M9/10 (With switching of direction of transmission by voice frequency) appears on 73 US grants and 7 published applications in this corpus.
Search patents in H04M- Granted patents
- 73
- Published applications
- 7
- Assignees
- 46
- Inventors
- 110
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 5 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 5 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and electronic device for removing echo flowing in due to external device14 Apr 2026US 12,603,959 B2Samsung Electronics Co., Ltd.
- Receive-path signal gain operations14 Jun 2022US 11,363,147 B2Sorenson IP Holdings, LLC
- Echo time delay detection method, echo elimination chip, and terminal equipment21 Jan 2020US 10,542,152 B2Tencent Technology (Shenzhen) Company Limited
- Echo time delay detection method, echo elimination chip, and terminal equipment16 Jul 2019US 10,356,249 B2Tencent Technology (Shenzhen) Company Limited
- High quality audio conferencing with adaptive beamforming4 Mar 2014US 8,666,047 B2Broadcom Corporation
- Method and electronic device for removing echo flowing in due to external device2 Nov 2023US 2023/0353684 A1Samsung Electronics Co., Ltd.
- Receive-path signal gain operations26 Mar 2020US 2020/0099793 A1Sorenson IP Holdings, LLC
- Echo time delay detection method, echo elimination chip, and terminal equipment12 Sep 2019US 2019/0281162 A1Tencent Technology (Shenzhen) Company Limited
- Echo time delay detection method, echo elimination chip, and terminal equipment6 Dec 2018US 2018/0352095 A1Tencent Technology (Shenzhen) Company Limited
- High Quality Audio Conferencing With Adaptive Beamforming5 Jul 2007US 2007/0154001 A1Broadcom Corporation
Most cited
By later US patents
- Adaptive noise reduction technique for multi-point communication system70US 6,175,634 B1Intel Corporation · 2001
- Microphone selection process for use in a multiple microphone voice actuated switching system65US 5,625,697 ALucent Technologies Inc. · 1997
- Voice actuated switching system50US 5,561,737 ALucent Technologies Inc. · 1996
- Voice activity detection system and method45US 5,867,574 ALucent Technologies Inc. · 1999
- Voice-switching device and method for multiple receivers42US 6,535,604 B1Nortel Networks Limited · 2003