G10L 19/08
Determination or coding of the excitation function
Official title: Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
G10L19/08 (Determination or coding of the excitation function) appears on 1,763 US grants and 1,444 published applications in this corpus.
Search patents in G10L- Granted patents
- 1,763
- Published applications
- 1,444
- Assignees
- 377
- Inventors
- 1,481
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 6 | 0 |
| 1988 | 8 | 0 |
| 1989 | 9 | 0 |
| 1990 | 24 | 0 |
| 1991 | 11 | 0 |
| 1992 | 20 | 0 |
| 1993 | 28 | 0 |
| 1994 | 18 | 0 |
| 1995 | 12 | 0 |
| 1996 | 31 | 0 |
| 1997 | 42 | 0 |
| 1998 | 71 | 0 |
| 1999 | 51 | 0 |
| 2000 | 49 | 0 |
| 2001 | 46 | 22 |
| 2002 | 45 | 47 |
| 2003 | 30 | 50 |
| 2004 | 43 | 55 |
| 2005 | 23 | 55 |
| 2006 | 55 | 49 |
| 2007 | 42 | 71 |
| 2008 | 38 | 74 |
| 2009 | 38 | 97 |
| 2010 | 45 | 65 |
| 2011 | 62 | 50 |
| 2012 | 63 | 52 |
| 2013 | 81 | 82 |
| 2014 | 72 | 41 |
| 2015 | 63 | 61 |
| 2016 | 63 | 87 |
| 2017 | 104 | 82 |
| 2018 | 76 | 75 |
| 2019 | 103 | 73 |
| 2020 | 76 | 62 |
| 2021 | 37 | 38 |
| 2022 | 47 | 41 |
| 2023 | 31 | 28 |
| 2024 | 40 | 38 |
| 2025 | 31 | 29 |
| 2026 | 25 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G10L 19/12The excitation function being a code excitation878
- G10L 19/10The excitation function being a multipulse excitation362
- G10L 19/09Long term prediction, i.e. removing periodical redundancies309
- G10L 19/083The excitation function being an excitation gain220
- G10L 19/087Using mixed excitation models103
- G10L 19/093Using sinusoidal excitation models88
- G10L 19/097Using prototype waveform decomposition or prototype waveform interpolative [pwi] coders45
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.
- LPC residual signal encoding/decoding apparatus of modified discrete cosine transform (MDCT)-based unified voice/audio encoding device8 Sep 2026US 12,731,594 B2Electronics and Telecommunications Research Institute
- Audio encoder and decoder using a frequency domain processor, a time domain processor, and a cross processing for continuous initialization1 Sep 2026US 12,725,620 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Time-domain superwideband bandwidth expansion for cross-talk scenarios25 Aug 2026US 12,718,827 B2Voiceage Corporation
- Method and apparatus for calculating downmixed signal and residual signal18 Aug 2026US 12,711,967 B2Huawei Technologies Co., Ltd.
- Periodic-combined-envelope-sequence generation device, periodic-combined-envelope-sequence generation method, periodic-combined-envelope-sequence generation program and recording medium8 Oct 2026US 2026/0311714 A1NTT, Inc.
- Spatial Audio Representation and Rendering8 Oct 2026US 2026/0313312 A1Nokia Technologies Oy
- Audio processor with a steered audio bandwidth extension17 Sep 2026US 2026/0279369 A1Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Decoder and encoder for energy in bandwidth extension17 Sep 2026US 2026/0279370 A1Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Apparatus for encoding a speech signal employing acelp in the autocorrelation domain27 Aug 2026US 2026/0253595 A1
Most cited
By later US patents
- Variable rate vocoder458US 5,414,796 AQUALCOMM Incorporated · 1995
- CS-ACELP speech compression system with adaptive pitch prediction filter gain based on a measure of periodicity345US 5,664,055 ALucent Technologies Inc. · 1997
- Mode-specific method and apparatus for encoding signals containing speech339US 5,596,676 AHughes Electronics Corporation · 1997
- Apparatus and method for encoding a multi-channel audio signal314US 8,577,045 B2Motorola Mobility LLC · 2013
- Speech segment coding and pitch control methods for speech synthesis systems296US 5,617,507 AKorea Telecommunication Authority · 1997