H04R 2227/001
Adaptation of signal processing in pa systems in dependence of presence of
Official title: Adaptation of signal processing in PA systems in dependence of presence of noise
H04R2227/001 (Adaptation of signal processing in pa systems in dependence of presence of) appears on 157 US grants and 199 published applications in this corpus.
Search patents in H04R- Granted patents
- 157
- Published applications
- 199
- Assignees
- 86
- Inventors
- 301
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 2 | 1 |
| 2011 | 0 | 3 |
| 2012 | 0 | 6 |
| 2013 | 2 | 4 |
| 2014 | 1 | 4 |
| 2015 | 3 | 8 |
| 2016 | 13 | 21 |
| 2017 | 13 | 12 |
| 2018 | 12 | 11 |
| 2019 | 12 | 16 |
| 2020 | 18 | 14 |
| 2021 | 10 | 15 |
| 2022 | 13 | 19 |
| 2023 | 20 | 24 |
| 2024 | 14 | 16 |
| 2025 | 16 | 14 |
| 2026 | 8 | 4 |
By publication year. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Optimization of network microphone devices using noise classification156US 10,602,268 B1Sonos, Inc. · 2020
- Voice detection optimization based on selected voice assistant service133US 10,573,321 B1Sonos, Inc. · 2020
- Playback device configuration based on proximity detection129US 9,743,208 B2Sonos, Inc. · 2017
- Playback device configuration based on proximity detection97US 9,264,839 B2Sonos, Inc. · 2016
- Playback device configuration55US 10,791,407 B2Sonon, Inc. · 2020