H04S 2420/03
Application of parametric coding in stereophonic audio systems
H04S2420/03 (Application of parametric coding in stereophonic audio systems) appears on 991 US grants and 1,161 published applications in this corpus.
Search patents in H04S- Granted patents
- 991
- Published applications
- 1,161
- Assignees
- 153
- Inventors
- 756
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 5 |
| 2004 | 3 | 1 |
| 2005 | 0 | 11 |
| 2006 | 3 | 20 |
| 2007 | 3 | 32 |
| 2008 | 5 | 47 |
| 2009 | 7 | 38 |
| 2010 | 22 | 31 |
| 2011 | 24 | 35 |
| 2012 | 49 | 35 |
| 2013 | 40 | 23 |
| 2014 | 37 | 37 |
| 2015 | 30 | 34 |
| 2016 | 34 | 73 |
| 2017 | 77 | 83 |
| 2018 | 86 | 72 |
| 2019 | 110 | 109 |
| 2020 | 82 | 79 |
| 2021 | 65 | 73 |
| 2022 | 68 | 75 |
| 2023 | 63 | 57 |
| 2024 | 73 | 90 |
| 2025 | 72 | 63 |
| 2026 | 27 | 37 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Determination of the significance of spatial audio parameters and associated encoding15 Sep 2026US 12,738,284 B2Nokia Technologies Oy
- Methods for parametric multi-channel encoding1 Sep 2026US 12,725,619 B2Dolby International AB
- Methods, apparatus and systems for controlling doppler effect modelling25 Aug 2026US 12,720,274 B2Dolby International AB
- Concepts for auralization using early reflection patterns18 Aug 2026US 12,713,198 B2Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e. V.
- Methods for parametric multi-channel encoding24 Sep 2026US 2026/0290357 A1Dolby International AB
- Spatial audio signal manipulation20 Aug 2026US 2026/0247094 A1Dolby International AB
- Audio signal decorrelator structure for rendering source extent13 Aug 2026US 2026/0238923 A1
- Binarual rendering13 Aug 2026US 2026/0238951 A1Dolby International AB
- Method and System for Multiverse Audio Experiences in Immersive Audio Formats6 Aug 2026US 2026/0227953 A1
Most cited
By later US patents
- Apparatus and method for encoding a multi-channel audio signal314US 8,577,045 B2Motorola Mobility LLC · 2013
- Virtual reality television system255US 5,714,997 A1998
- Method and apparatus for encoding and decoding multiple audio channels at low bit rates using adaptive selection of encoding method232US 5,890,125 ADolby Laboratories Licensing Corporation · 1999
- Apparatus and method for constructing a multi-channel output signal or for generating a downmix signal205US 7,394,903 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. · 2008
- Compatible multi-channel coding/decoding by weighting the downmix channel149US 7,447,317 B2Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e. V. · 2008