G10L 19/26
Pre-filtering or post-filtering
G10L19/26 (Pre-filtering or post-filtering) appears on 1,053 US grants and 1,114 published applications in this corpus.
Search patents in G10L- Granted patents
- 1,053
- Published applications
- 1,114
- Assignees
- 226
- Inventors
- 976
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 8 | 0 |
| 1998 | 7 | 0 |
| 1999 | 9 | 0 |
| 2000 | 9 | 0 |
| 2001 | 7 | 3 |
| 2002 | 7 | 11 |
| 2003 | 10 | 12 |
| 2004 | 8 | 13 |
| 2005 | 7 | 15 |
| 2006 | 10 | 16 |
| 2007 | 6 | 23 |
| 2008 | 13 | 21 |
| 2009 | 16 | 32 |
| 2010 | 12 | 30 |
| 2011 | 24 | 33 |
| 2012 | 30 | 26 |
| 2013 | 39 | 48 |
| 2014 | 39 | 50 |
| 2015 | 30 | 66 |
| 2016 | 82 | 83 |
| 2017 | 119 | 129 |
| 2018 | 88 | 77 |
| 2019 | 93 | 68 |
| 2020 | 70 | 74 |
| 2021 | 39 | 47 |
| 2022 | 56 | 54 |
| 2023 | 66 | 72 |
| 2024 | 68 | 57 |
| 2025 | 48 | 36 |
| 2026 | 22 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Oversampling in a combined transposer filterbank6 Oct 2026US 12,753,444 B2Dolby International AB
- Colorless generation of elevation perceptual cues using all-pass filter networks6 Oct 2026US 12,756,986 B2Boomcloud 360, Inc.
- Apparatus and method for encoding or decoding directional audio coding parameters using different time/frequency resolutions22 Sep 2026US 12,744,046 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Adaptive enhancement of coded speech22 Sep 2026US 12,744,047 B1Amazon Technologies, Inc.
- Post-processor, pre-processor, audio encoder, audio decoder and related methods for enhancing transient processing15 Sep 2026US 12,738,286 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Audio signal coding method and apparatus, and audio signal decoding method and apparatus17 Sep 2026US 2026/0279366 A1Douyin Vision Co., Ltd.
- Audio processor for extended the audio bandwidth of band-limited audio signal17 Sep 2026US 2026/0279368 A1Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Method and apparatus for processing of audio using a neural network27 Aug 2026US 2026/0253594 A1Dolby Laboratories Licensing Corporation
- Display device and audio signal processing method thereof27 Aug 2026US 2026/0255126 A1LG Electronics Inc.
- Audio signal coding method, and device for carrying out same6 Aug 2026US 2026/0229239 A1Electronics and Telecommunications Research Institute
Most cited
By later US patents
- Mode-specific method and apparatus for encoding signals containing speech339US 5,596,676 AHughes Electronics Corporation · 1997
- Enhancing perceptual performance of sbr and related hfr coding methods by adaptive noise-floor addition and noise substitution limiting211US 6,708,145 B1Coding Technologies Sweden AB · 2004
- Vector adaptive predictive coder for speech and audio171US 4,969,192 AVoicecraft, Inc. · 1990
- Method and apparatus of postfiltering using a first spectrum parameter of an encoded sound signal and a second spectrum parameter of a lesser degree than the first spectrum parameter128US 5,774,835 ANEC Corporation · 1998
- Pitch determination using speech classification and prior pitch estimation120US 6,507,814 B1Conexant Systems, Inc. · 2003