G10L 19/12
The excitation function being a code excitation
Official title: the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
G10L19/12 (The excitation function being a code excitation) appears on 878 US grants and 732 published applications in this corpus.
Search patents in G10L- Granted patents
- 878
- Published applications
- 732
- Assignees
- 202
- Inventors
- 723
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 8 | 0 |
| 1991 | 2 | 0 |
| 1992 | 7 | 0 |
| 1993 | 12 | 0 |
| 1994 | 12 | 0 |
| 1995 | 10 | 0 |
| 1996 | 17 | 0 |
| 1997 | 28 | 0 |
| 1998 | 38 | 0 |
| 1999 | 17 | 0 |
| 2000 | 19 | 0 |
| 2001 | 19 | 15 |
| 2002 | 16 | 18 |
| 2003 | 14 | 17 |
| 2004 | 18 | 24 |
| 2005 | 6 | 23 |
| 2006 | 20 | 18 |
| 2007 | 16 | 37 |
| 2008 | 20 | 29 |
| 2009 | 19 | 44 |
| 2010 | 21 | 27 |
| 2011 | 29 | 23 |
| 2012 | 34 | 23 |
| 2013 | 39 | 51 |
| 2014 | 30 | 22 |
| 2015 | 36 | 32 |
| 2016 | 35 | 60 |
| 2017 | 57 | 47 |
| 2018 | 43 | 39 |
| 2019 | 67 | 48 |
| 2020 | 52 | 38 |
| 2021 | 25 | 20 |
| 2022 | 26 | 22 |
| 2023 | 20 | 13 |
| 2024 | 23 | 17 |
| 2025 | 13 | 16 |
| 2026 | 8 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 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 coding using machine learning based linear filters and non-linear neural sources4 Aug 2026US 12,700,415 B2QUALCOMM Incorporated
- Periodic-combined-envelope-sequence generation device, periodic-combined-envelope-sequence generation method, periodic-combined-envelope-sequence generation program and recording medium28 Jul 2026US 12,694,883 B2NTT, Inc.
- Encoding device and encoding method21 Jul 2026US 12,688,857 B2Panasonic Intellectual Property Corporation of America
- Audio coding using combination of machine learning based time-varying filter and linear predictive coding filter21 Jul 2026US 12,688,860 B2QUALCOMM Incorporated
- 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.
- 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.
- Audio compensation method and apparatus, electronic device, and storage medium20 Aug 2026US 2026/0245570 A1Beijing Zitiao Network Technology Co., Ltd.
- Post filter for audio signals9 Jul 2026US 2026/0196229 A1Dolby International AB
Most cited
By later US patents
- Variable rate vocoder458US 5,414,796 AQUALCOMM Incorporated · 1995
- 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
- Source dependent channel coding with error protection278US 5,091,945 AAT&T Bell Laboratories · 1992
- Method and system for CELP speech coding and codebook for use therewith276US 5,371,853 AUniversity of Maryland at College Park · 1994