G10L 19/09
Long term prediction, i.e. removing periodical redundancies
Official title: Long term prediction, i.e. removing periodical redundancies, e.g. by using adaptive codebook or pitch predictor
G10L19/09 (Long term prediction, i.e. removing periodical redundancies) appears on 309 US grants and 257 published applications in this corpus.
Search patents in G10L- Granted patents
- 309
- Published applications
- 257
- Assignees
- 116
- Inventors
- 320
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 10 | 0 |
| 1999 | 11 | 0 |
| 2000 | 13 | 0 |
| 2001 | 13 | 4 |
| 2002 | 13 | 7 |
| 2003 | 7 | 7 |
| 2004 | 6 | 11 |
| 2005 | 3 | 10 |
| 2006 | 10 | 10 |
| 2007 | 7 | 10 |
| 2008 | 10 | 23 |
| 2009 | 5 | 14 |
| 2010 | 11 | 20 |
| 2011 | 12 | 8 |
| 2012 | 8 | 9 |
| 2013 | 17 | 13 |
| 2014 | 14 | 5 |
| 2015 | 12 | 6 |
| 2016 | 9 | 26 |
| 2017 | 17 | 6 |
| 2018 | 18 | 22 |
| 2019 | 16 | 8 |
| 2020 | 13 | 11 |
| 2021 | 7 | 8 |
| 2022 | 10 | 10 |
| 2023 | 6 | 3 |
| 2024 | 9 | 4 |
| 2025 | 5 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Processor for generating a prediction spectrum based on long-term prediction and/or harmonic post-filtering15 Sep 2026US 12,738,283 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Post filter for audio signals20 Jan 2026US 12,531,076 B2Dolby International AB
- Audio signal enhancement method and apparatus, computer device, storage medium and computer program product26 Aug 2025US 12,400,674 B2Tencent Technology (Shenzhen) Company Limited
- Very short pitch detection and coding12 Aug 2025US 12,387,737 B2Huawei Technologies Co., Ltd.
- Encoder, decoder, encoding method and decoding method for frequency domain long-term prediction of tonal signals for audio coding5 Aug 2025US 12,380,901 B2Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e. V.
- Post filter for audio signals9 Jul 2026US 2026/0196229 A1Dolby International AB
- Sample generation based on joint probability distribution6 Feb 2025US 2025/0046323 A1QUALCOMM Incorporated
- Apparatus and method for harmonicity-dependent tilt control of scale parameters in an audio encoder7 Nov 2024US 2024/0371382 A1Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Post filter for audio signals15 Aug 2024US 2024/0274145 A1Dolby International AB
- Very Short Pitch Detection and Coding4 Jul 2024US 2024/0221766 A1Huawei Technologies Co., Ltd.
Most cited
By later US patents
- CS-ACELP speech compression system with adaptive pitch prediction filter gain based on a measure of periodicity345US 5,664,055 ALucent Technologies Inc. · 1997
- Speech segment coding and pitch control methods for speech synthesis systems296US 5,617,507 AKorea Telecommunication Authority · 1997
- Low-complexity method for improving the performance of autocorrelation-based pitch detectors276US 5,127,053 AGeneral Electric Company · 1992
- Pitch-Preserved digital audio playback synchronized to asynchronous clock271US 6,526,325 B1Creative Technology Ltd · 2003
- Linear predictive speech encoding systems with efficient combination pitch coefficients computation225US 5,794,182 AApple Computer, Inc. · 1998