H04S 2420/00
Techniques used stereophonic systems covered by h04s but not provided for in
Official title: Techniques used stereophonic systems covered by H04S but not provided for in its groups
H04S2420/00 (Techniques used stereophonic systems covered by h04s but not provided for in) appears on 4,154 US grants and 4,882 published applications in this corpus.
Search patents in H04S- Granted patents
- 4,154
- Published applications
- 4,882
- Assignees
- 800
- Inventors
- 4,152
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 8 | 0 |
| 1998 | 14 | 0 |
| 1999 | 13 | 0 |
| 2000 | 9 | 0 |
| 2001 | 11 | 3 |
| 2002 | 6 | 5 |
| 2003 | 10 | 19 |
| 2004 | 16 | 25 |
| 2005 | 8 | 50 |
| 2006 | 18 | 64 |
| 2007 | 14 | 100 |
| 2008 | 16 | 103 |
| 2009 | 27 | 90 |
| 2010 | 69 | 74 |
| 2011 | 59 | 87 |
| 2012 | 117 | 112 |
| 2013 | 91 | 103 |
| 2014 | 97 | 130 |
| 2015 | 122 | 167 |
| 2016 | 167 | 286 |
| 2017 | 295 | 292 |
| 2018 | 321 | 322 |
| 2019 | 410 | 420 |
| 2020 | 407 | 369 |
| 2021 | 320 | 385 |
| 2022 | 338 | 370 |
| 2023 | 328 | 350 |
| 2024 | 315 | 387 |
| 2025 | 331 | 331 |
| 2026 | 171 | 238 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04S 2420/01Enhancing the perception of the sound image or of the spatial distributionIndexing code2,561
- H04S 2420/03Application of parametric coding in stereophonic audio systemsIndexing code991
- H04S 2420/11Application of ambisonics in stereophonic audio systemsIndexing code757
- H04S 2420/07Synergistic effects of band splitting and sub-band processingIndexing code523
- H04S 2420/13Application of wave-field synthesis in stereophonic audio systemsIndexing code183
- H04S 2420/05Application of the precedence or haas effect, i.e. the effect of firstIndexing code62
Recent patents
- Signaling for rendering tools6 Oct 2026US 12,755,744 B2QUALCOMM Incorporated
- Method and apparatus for estimating spatial content of soundfield at desired location6 Oct 2026US 12,756,978 B2
- Apparatus, method or computer program for synthesizing a spatially extended sound source using variance or covariance data29 Sep 2026US 12,750,625 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Detection of the change of position of a set-top box by image analysis29 Sep 2026US 12,750,627 B2Sagemcom Broadband SAS
- Virtual audio augmentation using computer vision29 Sep 2026US 12,750,629 B2NVIDIA Corporation
- Method and device for decoding an audio soundfield representation8 Oct 2026US 2026/0311709 A1Dolby Laboratories Licensing Corporation
- Performing common audio convolutions using iso-trajectories in three dimensional (3d) space8 Oct 2026US 2026/0313308 A1Google Inc.
- Virtual sound sources and rendering techniques8 Oct 2026US 2026/0313309 A1Dolby International AB
- Spatial Audio Representation and Rendering8 Oct 2026US 2026/0313312 A1Nokia Technologies Oy
- Multi-channel audio decoder, multi-channel audio encoder, methods and computer program using a residual-signal-based adjustment of a contribution of a decorrelated signal1 Oct 2026US 2026/0301751 A1Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e. V.
Most cited
By later US patents
- Sound stage controller for a near-field speaker-based audio system381US 9,215,545 B2Bose Corporation · 2015
- Characterizing environment using ultrasound pilot tones371US 9,319,816 B1Amazon Technologies, Inc. · 2016
- Apparatus and method for encoding a multi-channel audio signal314US 8,577,045 B2Motorola Mobility LLC · 2013
- Electroacoustical transducing with low frequency augmenting devices304US 8,238,578 B2Bose Corporation · 2012
- Sound reproducing apparatus and sound reproducing method303US 8,160,281 B2Samsung Electronics Co., Ltd. · 2012