H04N 21/2368
Multiplexing of audio and video streams
H04N21/2368 (Multiplexing of audio and video streams) appears on 1,250 US grants and 1,289 published applications in this corpus.
Search patents in H04N- Granted patents
- 1,250
- Published applications
- 1,289
- Assignees
- 460
- Inventors
- 2,229
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 15 | 0 |
| 1997 | 17 | 0 |
| 1998 | 22 | 0 |
| 1999 | 30 | 0 |
| 2000 | 22 | 0 |
| 2001 | 32 | 26 |
| 2002 | 25 | 40 |
| 2003 | 20 | 54 |
| 2004 | 27 | 41 |
| 2005 | 39 | 52 |
| 2006 | 45 | 90 |
| 2007 | 27 | 106 |
| 2008 | 30 | 80 |
| 2009 | 51 | 100 |
| 2010 | 62 | 77 |
| 2011 | 63 | 51 |
| 2012 | 94 | 52 |
| 2013 | 62 | 66 |
| 2014 | 105 | 60 |
| 2015 | 87 | 84 |
| 2016 | 61 | 37 |
| 2017 | 37 | 32 |
| 2018 | 35 | 40 |
| 2019 | 37 | 35 |
| 2020 | 41 | 31 |
| 2021 | 28 | 33 |
| 2022 | 27 | 31 |
| 2023 | 30 | 28 |
| 2024 | 29 | 21 |
| 2025 | 21 | 15 |
| 2026 | 11 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Attention based audio experience in streaming of live events25 Aug 2026US 12,720,130 B2Adeia Guides Inc.
- Audio processing18 Aug 2026US 12,711,982 B2Nokia Technologies Oy
- System and method for encoding image data and other data types into one data format and decoding of same4 Aug 2026US 12,701,278 B2C-Hear, Inc.
- Multimedia data processing method and apparatus, device and medium21 Jul 2026US 12,689,811 B2Beijing Zitiao Network Technology Co., Ltd.
- Streaming digital rights management protected media content via WebRTC16 Jun 2026US 12,659,532 B1EZDRM, Inc.
- Realtime wireless synchronization of live event audio stream with a video recording8 Oct 2026US 2026/0314022 A1Bygge Technologies Inc.
- Media content posting method and apparatus, and device and storage medium1 Oct 2026US 2026/0303885 A1Beijing Zitiao Network Technology Co., Ltd.
- User-defined content streaming24 Sep 2026US 2026/0292280 A1Comcast Cable Communications, LLC
- Location Based Playback System Control3 Sep 2026US 2026/0261727 A1Sonos, Inc.
- Server-generated mosaic video stream for live-stream media items2 Jul 2026US 2026/0189738 A1Google Inc.
Most cited
By later US patents
- Audio and video transmission and receiving system941US 5,132,992 A1992
- Method and apparatus for multiplexing separately-authored metadata for insertion into a video data stream689US 6,357,042 B22002
- Audio and video transmission and receiving system533US 5,253,275 A1993
- Audio and video transmission and receiving system508US 6,002,720 AH. Lee Browne, D/B/A Greenwich Information Technologies LLC · 1999
- Home entertainment system combining complex processor capability with a high quality display451US 5,675,390 AGateway 2000, Inc. · 1997