H04S 5/00
Pseudo-stereo systems
Official title: Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation
H04S5/00 (Pseudo-stereo systems) appears on 1,079 US grants and 1,080 published applications in this corpus.
Search patents in H04S- Granted patents
- 1,079
- Published applications
- 1,080
- Assignees
- 355
- Inventors
- 1,432
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 13 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 7 | 0 |
| 1981 | 5 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 11 | 0 |
| 1990 | 5 | 0 |
| 1991 | 9 | 0 |
| 1992 | 12 | 0 |
| 1993 | 13 | 0 |
| 1994 | 8 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 11 | 0 |
| 1998 | 9 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 1 |
| 2002 | 3 | 9 |
| 2003 | 3 | 11 |
| 2004 | 5 | 6 |
| 2005 | 8 | 17 |
| 2006 | 3 | 14 |
| 2007 | 9 | 42 |
| 2008 | 7 | 44 |
| 2009 | 9 | 21 |
| 2010 | 25 | 14 |
| 2011 | 30 | 30 |
| 2012 | 35 | 39 |
| 2013 | 19 | 29 |
| 2014 | 29 | 66 |
| 2015 | 36 | 75 |
| 2016 | 57 | 78 |
| 2017 | 121 | 93 |
| 2018 | 88 | 86 |
| 2019 | 110 | 73 |
| 2020 | 69 | 59 |
| 2021 | 57 | 52 |
| 2022 | 42 | 42 |
| 2023 | 45 | 47 |
| 2024 | 45 | 49 |
| 2025 | 48 | 58 |
| 2026 | 15 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Upmixing systems and methods for extending stereo signals to multi-channel formats15 Sep 2026US 12,739,583 B2Zynaptiq GmbH
- Method to expedite playing of binaural sound to a listener15 Sep 2026US 12,739,586 B2
- Apparatus and method for generating a first control signal and a second control signal by using a linearization and/or a bandwidth extension25 Aug 2026US 12,720,254 B2Kaetel Systems GmbH
- Audio signal processing method25 Aug 2026US 12,720,273 B2Areal BV
- Audio rendering system and method and electronic device11 Aug 2026US 12,706,099 B2Beijing Zitiao Network Technology Co., Ltd.
- Machine learning methods for generating parametric stereo parameters from mono signals24 Sep 2026US 2026/0292425 A1Dolby International AB
- Audio output system of 3D sound by selectively controlling sound source17 Sep 2026US 2026/0281650 A1
- Display device and audio signal processing method thereof27 Aug 2026US 2026/0255126 A1LG Electronics Inc.
- Method for multichannel audio reconstruction and speaker system using the method20 Aug 2026US 2026/0247090 A1Harman International Industries, Incorporated
- Methods and apparatus for rendering audio objects20 Aug 2026US 2026/0247091 A1Dolby International AB
Most cited
By later US patents
- Sound stage controller for a near-field speaker-based audio system381US 9,215,545 B2Bose Corporation · 2015
- Spatial processing stereo system343US 8,126,172 B2Harman International Industries, Incorporated · 2012
- Audio signal processing318US 7,490,044 B2Bose Corporation · 2009
- Multi-dimensional reproduction system290US 5,272,757 ASonics Associates, Inc. · 1993
- Multi-dimensional processor and multi-dimensional audio processor system257US 6,931,134 B12005