H04S 2420/01
Enhancing the perception of the sound image or of the spatial distribution
Official title: Enhancing the perception of the sound image or of the spatial distribution using head related transfer functions [HRTF's] or equivalents thereof, e.g. interaural time difference [ITD] or interaural level difference [ILD]
H04S2420/01 (Enhancing the perception of the sound image or of the spatial distribution) appears on 2,561 US grants and 2,983 published applications in this corpus.
Search patents in H04S- Granted patents
- 2,561
- Published applications
- 2,983
- Assignees
- 593
- Inventors
- 3,109
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 13 | 0 |
| 1999 | 8 | 0 |
| 2000 | 6 | 0 |
| 2001 | 9 | 2 |
| 2002 | 5 | 3 |
| 2003 | 6 | 12 |
| 2004 | 12 | 17 |
| 2005 | 6 | 30 |
| 2006 | 12 | 24 |
| 2007 | 8 | 40 |
| 2008 | 7 | 52 |
| 2009 | 15 | 53 |
| 2010 | 24 | 28 |
| 2011 | 28 | 35 |
| 2012 | 50 | 61 |
| 2013 | 44 | 59 |
| 2014 | 52 | 80 |
| 2015 | 71 | 88 |
| 2016 | 93 | 166 |
| 2017 | 160 | 140 |
| 2018 | 193 | 218 |
| 2019 | 244 | 252 |
| 2020 | 267 | 236 |
| 2021 | 225 | 268 |
| 2022 | 218 | 242 |
| 2023 | 238 | 247 |
| 2024 | 203 | 247 |
| 2025 | 218 | 224 |
| 2026 | 106 | 159 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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.
- Virtual audio augmentation using computer vision29 Sep 2026US 12,750,629 B2NVIDIA Corporation
- Efficient rendering of virtual soundfields22 Sep 2026US 12,745,053 B2Magic Leap, Inc.
- Performing common audio convolutions using iso-trajectories in three dimensional (3d) space8 Oct 2026US 2026/0313308 A1Google Inc.
- Spatial Audio Representation and Rendering8 Oct 2026US 2026/0313312 A1Nokia Technologies Oy
- Electronic device for generating binaural impulse response and operation method of the same1 Oct 2026US 2026/0304061 A1Electronics and Telecommunications Research Institute
- Loudspeaker Control in a Plurality of Frequency Bands1 Oct 2026US 2026/0304063 A1Audioscenic Limited
- Creating a large scale head-related filter database24 Sep 2026US 2026/0288862 A1Telefonaktiebolaget LM Ericsson (publ)
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
- 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
- Virtual reality television system255US 5,714,997 A1998