G10L 19/24
Variable rate codecs
Official title: Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
G10L19/24 (Variable rate codecs) appears on 1,113 US grants and 1,231 published applications in this corpus.
Search patents in G10L- Granted patents
- 1,113
- Published applications
- 1,231
- Assignees
- 245
- Inventors
- 1,177
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 8 | 0 |
| 2001 | 6 | 2 |
| 2002 | 5 | 6 |
| 2003 | 7 | 17 |
| 2004 | 7 | 26 |
| 2005 | 6 | 47 |
| 2006 | 8 | 38 |
| 2007 | 29 | 89 |
| 2008 | 30 | 59 |
| 2009 | 25 | 100 |
| 2010 | 40 | 68 |
| 2011 | 84 | 52 |
| 2012 | 89 | 56 |
| 2013 | 90 | 46 |
| 2014 | 50 | 47 |
| 2015 | 39 | 41 |
| 2016 | 52 | 46 |
| 2017 | 67 | 67 |
| 2018 | 42 | 60 |
| 2019 | 78 | 56 |
| 2020 | 57 | 48 |
| 2021 | 35 | 46 |
| 2022 | 45 | 50 |
| 2023 | 63 | 66 |
| 2024 | 52 | 42 |
| 2025 | 52 | 41 |
| 2026 | 18 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for restricting bit rate for enhanced voice services (EVS)22 Sep 2026US 12,744,850 B2Jio Platforms Limited
- System for maintaining reversible dynamic range control information associated with parametric audio coders15 Sep 2026US 12,738,288 B2Dolby International AB
- 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.
- Method, system, and computer program product for dynamically improving voice quality in mobile cellular communication network18 Aug 2026US 12,711,974 B2P. I. Works U.S., Inc.
- Signal processing apparatus and signal processing method18 Aug 2026US 12,713,086 B2Sony Group Corporation
- Higher Order Ambisonics Encoding And Decoding17 Sep 2026US 2026/0279367 A1Apple Inc.
- System and method for securely transmitting voice signals17 Sep 2026US 2026/0279371 A1Microsoft Technology Licensing, LLC
- Electronic device and method for outputting media by using configuration information about frame, and storage medium3 Sep 2026US 2026/0260661 A1Samsung Electronics Co., Ltd.
- Method and device for flexible combined format bit-rate adaptation in an audio codec30 Jul 2026US 2026/0221144 A1Voiceage Corporation
- Support for generation of comfort noise4 Jun 2026US 2026/0155151 A1Telefonaktiebolaget LM Ericsson (publ)
Most cited
By later US patents
- Variable rate vocoder458US 5,414,796 AQUALCOMM Incorporated · 1995
- Apparatus and method for encoding a multi-channel audio signal314US 8,577,045 B2Motorola Mobility LLC · 2013
- Scalable and embedded codec for speech and audio signals173US 7,272,556 B1Lucent Technologies Inc. · 2007
- Scalable audio coder and decoder169US 6,115,689 AMicrosoft Corporation · 2000
- System and method for masking quantization noise of audio signals155US 6,058,362 AMicrosoft Corporation · 2000