H04S 2400/07
Generation or adaptation of the low frequency effect [lfe] channel
Official title: Generation or adaptation of the Low Frequency Effect [LFE] channel, e.g. distribution or signal processing
H04S2400/07 (Generation or adaptation of the low frequency effect [lfe] channel) appears on 134 US grants and 158 published applications in this corpus.
Search patents in H04S- Granted patents
- 134
- Published applications
- 158
- Assignees
- 85
- Inventors
- 287
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 2 |
| 2006 | 0 | 3 |
| 2007 | 2 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 2 | 5 |
| 2011 | 2 | 1 |
| 2012 | 0 | 8 |
| 2013 | 4 | 4 |
| 2014 | 3 | 8 |
| 2015 | 10 | 12 |
| 2016 | 14 | 11 |
| 2017 | 13 | 17 |
| 2018 | 10 | 4 |
| 2019 | 8 | 13 |
| 2020 | 17 | 12 |
| 2021 | 8 | 9 |
| 2022 | 7 | 7 |
| 2023 | 8 | 12 |
| 2024 | 9 | 12 |
| 2025 | 6 | 10 |
| 2026 | 7 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for a personalized audio system11 Aug 2026US 12,707,223 B2Harman International Industries, Incorporated
- Method of processing audio for playback of immersive audio23 Jun 2026US 12,666,213 B2Dolby Laboratories Licensing Corporation
- Adaptive filterbanks using scale-dependent nonlinearity for psychoacoustic frequency range extension24 Mar 2026US 12,587,785 B2Boomcloud 360, Inc.
- Method for generating a conversion filter for converting a multidimensional output audio signal into a two-dimensional audio signal for listening17 Mar 2026US 12,581,259 B2atmoky GmbH
- Method and system for managing the low frequency content in a loudspeaker system10 Mar 2026US 12,574,678 B2Bang & Olufsen A/S
- Method of processing audio for playback of immersive audio17 Sep 2026US 2026/0281643 A1Dolby Laboratories Licensing Corporation
- Improving audio rendering by extracting a frequency band18 Jun 2026US 2026/0172774 A1Sagemcom Broadband SAS
- Audio System, Signal Processing Device, and Signal Processing Method8 Jan 2026US 2026/0012730 A1Yamaha Corporation
- Immersive audio fading20 Nov 2025US 2025/0358583 A1Dolby Laboratories Licensing Corporation
- Audio signal processing device14 Aug 2025US 2025/0260937 A1Alps Alpine Co., Ltd.
Most cited
By later US patents
- Orientation-responsive use of acoustic reflection403US 8,934,655 B2Bose Corporation · 2015
- Method and apparatus for automatically enabling subwoofer channel audio based on detection of subwoofer device364US 7,792,311 B1Sonos, Inc. · 2010
- Audio bass management methods and circuits and systems using the same157US 6,349,285 B1Cirrus Logic, Inc. · 2002
- Low-frequency effects haptic conversion system66US 9,354,704 B2Immersion Corporation · 2016
- Portable audio playback device with bass enhancement35US 7,295,809 B2Sony Ericsson Mobile Communications AB · 2007