H04B 3/234
Using double talk detection
Official title: {using double talk detection}
H04B3/234 (Using double talk detection) appears on 192 US grants and 103 published applications in this corpus.
Search patents in H04B- Granted patents
- 192
- Published applications
- 103
- Assignees
- 93
- Inventors
- 307
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 5 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 1 |
| 2002 | 7 | 5 |
| 2003 | 7 | 8 |
| 2004 | 8 | 6 |
| 2005 | 7 | 7 |
| 2006 | 11 | 5 |
| 2007 | 6 | 9 |
| 2008 | 6 | 7 |
| 2009 | 5 | 15 |
| 2010 | 12 | 4 |
| 2011 | 9 | 5 |
| 2012 | 15 | 2 |
| 2013 | 5 | 2 |
| 2014 | 6 | 7 |
| 2015 | 5 | 1 |
| 2016 | 8 | 5 |
| 2017 | 2 | 2 |
| 2018 | 3 | 3 |
| 2019 | 6 | 3 |
| 2020 | 2 | 2 |
| 2021 | 2 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 2 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Double talk detection using capture up-sampling9 Jun 2026US 12,652,076 B2Dolby Laboratories Licensing Corporation
- Double talk detectors1 Apr 2025US 12,267,463 B2Hewlett-Packard Development Company, L. P.
- Echo suppression device, echo suppression method, and echo suppression program21 May 2024US 11,990,149 B2Transtron Inc.
- Aggregating hardware loopback24 Jan 2023US 11,563,857 B2Microsoft Technology Licensing, LLC
- Estimating averaged noise component in a microphone signal4 May 2021US 10,999,418 B2Imagination Technologies Limited
- Echo suppressing device, echo suppressing method, and echo suppressing program23 May 2024US 2024/0171685 A1Transtron Inc.
- Double talk detectors1 Jun 2023US 2023/0171346 A1Hewlett-Packard Development Company, L. P.
- Double talk detection using capture up-sampling13 Apr 2023US 2023/0115316 A1Dolby Laboratories Licensing Corporation
- Echo suppression device, echo suppression method, and echo suppression program26 May 2022US 2022/0165286 A1Transtron Inc.
- Aggregating hardware loopback3 Dec 2020US 2020/0382648 A1Microsoft Technology Licensing, LLC
Most cited
By later US patents
- Gateway with voice281US 6,765,931 B1Broadcom Corporation · 2004
- Method and apparatus for improved control and time sharing of an echo canceller210US 4,712,235 AInternational Business Machines Corporation · 1987
- Network echo canceller184US 5,307,405 AQUALCOMM Incorporated · 1994
- Voice and data exchange over a packet based network with timing recovery134US 6,549,587 B1Broadcom Corporation · 2003
- Method for controlling echo canceling in an echo canceller115US 5,687,229 AQUALCOMM Incorporated · 1997