H04M 3/2236
Quality of speech transmission monitoring
Official title: {Quality of speech transmission monitoring}
H04M3/2236 (Quality of speech transmission monitoring) appears on 395 US grants and 399 published applications in this corpus.
Search patents in H04M- Granted patents
- 395
- Published applications
- 399
- Assignees
- 223
- Inventors
- 846
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 0 |
| 2002 | 3 | 12 |
| 2003 | 1 | 13 |
| 2004 | 8 | 17 |
| 2005 | 4 | 14 |
| 2006 | 12 | 17 |
| 2007 | 15 | 14 |
| 2008 | 14 | 23 |
| 2009 | 12 | 10 |
| 2010 | 23 | 12 |
| 2011 | 15 | 10 |
| 2012 | 13 | 15 |
| 2013 | 21 | 17 |
| 2014 | 21 | 24 |
| 2015 | 22 | 21 |
| 2016 | 25 | 26 |
| 2017 | 16 | 21 |
| 2018 | 28 | 19 |
| 2019 | 30 | 19 |
| 2020 | 20 | 14 |
| 2021 | 14 | 11 |
| 2022 | 16 | 22 |
| 2023 | 16 | 14 |
| 2024 | 12 | 12 |
| 2025 | 7 | 12 |
| 2026 | 9 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method, system, and computer program product for dynamically improving voice quality in mobile cellular communication network18 Aug 2026US 12,711,974 B2P. I. Works U.S., Inc.
- Apparatus, system and method for emergency communications18 Aug 2026US 12,712,962 B2Essence Security International (E.S.I.) Ltd.
- Real-time call quality monitoring and mitigation via webhooks4 Aug 2026US 12,701,183 B1Voxology Integrations, Inc.
- Adaptive audio processing during video conferencing2 Jun 2026US 12,645,422 B2Zoom Communications, Inc.
- Call processing method and call processing apparatus7 Apr 2026US 12,598,221 B2Vivo Mobile Communication Co., Ltd.
- Device, system, and method for obtaining and encoding information into a communication session13 Aug 2026US 2026/0237399 A1Motorola Solutions, Inc.
- Ip multimedia subsystem (ims) call experience improvement based on user feedback6 Aug 2026US 2026/0230515 A1Motorola Mobility LLC
- Proximity-based audio conferencing30 Jul 2026US 2026/0219830 A1Koninklijke KPN N. V.
- Transport media quality testing remote from testing site16 Jul 2026US 2026/0205539 A1Spirent Communications, Inc.
- Predicting user traffic metrics in computer networks9 Jul 2026US 2026/0195642 A1Telefonaktiebolaget LM Ericsson (publ)
Most cited
By later US patents
- Method and apparatus for providing expanded telecommunications service264US 6,477,246 B1Callwave, Inc. · 2002
- Network traffic generation and monitoring systems and methods for their use in testing frameworks for determining suitability of a network for target applications180US 7,633,942 B2Avaya Inc. · 2009
- Method and apparatus for providing expanded telecommunications service173US 6,898,275 B2Callwave, Inc. · 2005
- Signal quality beam selection173US 9,973,849 B1Amazon Technologies, Inc. · 2018
- Method and apparatus for facilitating tiered collaboration172US 6,310,941 B1ITXC, Inc. · 2001