H04S 2400/05
Generation or adaptation of centre channel in multi-channel audio systems
H04S2400/05 (Generation or adaptation of centre channel in multi-channel audio systems) appears on 232 US grants and 249 published applications in this corpus.
Search patents in H04S- Granted patents
- 232
- Published applications
- 249
- Assignees
- 114
- Inventors
- 412
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 5 |
| 2003 | 0 | 2 |
| 2004 | 1 | 2 |
| 2005 | 4 | 1 |
| 2006 | 1 | 2 |
| 2007 | 2 | 4 |
| 2008 | 4 | 8 |
| 2009 | 1 | 1 |
| 2010 | 1 | 12 |
| 2011 | 5 | 5 |
| 2012 | 8 | 5 |
| 2013 | 6 | 7 |
| 2014 | 6 | 11 |
| 2015 | 7 | 11 |
| 2016 | 13 | 11 |
| 2017 | 15 | 11 |
| 2018 | 21 | 19 |
| 2019 | 23 | 18 |
| 2020 | 19 | 23 |
| 2021 | 19 | 13 |
| 2022 | 12 | 17 |
| 2023 | 12 | 13 |
| 2024 | 10 | 16 |
| 2025 | 21 | 14 |
| 2026 | 7 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Colorless generation of elevation perceptual cues using all-pass filter networks6 Oct 2026US 12,756,986 B2Boomcloud 360, Inc.
- Audio signal processing method25 Aug 2026US 12,720,273 B2Areal BV
- Virtualizer for binaural audio26 May 2026US 12,641,388 B2Dolby Laboratories Licensing Corporation
- Deep learning based voice extraction and primary-ambience decomposition for stereo to surround upmixing with dialog-enhanced center channel17 Mar 2026US 12,581,266 B2Samsung Electronics Co., Ltd.
- Audio signal processing method and audio signal processing apparatus20 Jan 2026US 12,532,139 B2Xround Inc.
- Multi-Zone Setup And Configuration Of Multi-Player Playback Devices1 Oct 2026US 2026/0299878 A1Sonos, Inc.
- Audio output system of 3D sound by selectively controlling sound source17 Sep 2026US 2026/0281650 A1
- Information handling system modularized speaker10 Sep 2026US 2026/0270619 A1Dell Products L. P.
- Dialog Intelligibility Enhancement Method and System6 Aug 2026US 2026/0229243 A1DTS, Inc.
- Generating audio driving signals for the production of simultaneous stereo sound stages30 Jul 2026US 2026/0222753 A1Meridian Audio Ltd.
Most cited
By later US patents
- Spatial disassembly processor322US 7,630,500 B1Bose Corporation · 2009
- Center channel rendering302US 8,620,006 B2Bose Corporation · 2013
- Center channel derivation for stereophonic cinema sound99US 4,024,344 ADolby Laboratories, Inc. · 1977
- Multichannel active matrix encoder and decoder with maximum lateral separation91US 5,870,480 ALexicon Corporation · 1999
- Linear-matrix audio-imaging system and image analyzer56US 5,610,986 A1997