H04N 21/4398
Involving reformatting operations of audio signals
Official title: {involving reformatting operations of audio signals (details of audio signal transcoding G10L19/173)}
H04N21/4398 (Involving reformatting operations of audio signals) appears on 325 US grants and 387 published applications in this corpus.
Search patents in H04N- Granted patents
- 325
- Published applications
- 387
- Assignees
- 181
- Inventors
- 721
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 5 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 4 |
| 2003 | 2 | 2 |
| 2004 | 1 | 5 |
| 2005 | 2 | 7 |
| 2006 | 3 | 15 |
| 2007 | 4 | 10 |
| 2008 | 1 | 16 |
| 2009 | 6 | 13 |
| 2010 | 8 | 13 |
| 2011 | 11 | 15 |
| 2012 | 13 | 6 |
| 2013 | 12 | 17 |
| 2014 | 13 | 21 |
| 2015 | 14 | 15 |
| 2016 | 19 | 17 |
| 2017 | 18 | 22 |
| 2018 | 27 | 23 |
| 2019 | 19 | 13 |
| 2020 | 23 | 30 |
| 2021 | 22 | 31 |
| 2022 | 26 | 27 |
| 2023 | 26 | 26 |
| 2024 | 24 | 20 |
| 2025 | 19 | 13 |
| 2026 | 5 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for automated extraction of closed captions in real time or near real-time and tagging of streaming data for advertisements25 Aug 2026US 12,720,139 B2Crossbar Media Group, Inc
- Image display apparatus26 May 2026US 12,639,033 B2LG Electronics Inc.
- Electronic device for performing screen capture and method for capturing screen by electronic device31 Mar 2026US 12,591,356 B2Samsung Electronics Co., Ltd.
- Method for managing an audio stream using an image acquisition device and associated decoder equipment17 Mar 2026US 12,581,263 B2Sagemcom Broadband SAS
- Lyric video display method and device, electronic apparatus and computer-readable medium10 Feb 2026US 12,549,801 B2Beijing Zitiao Network Technology Co., Ltd.
- Electronic device for performing screen capture and method for capturing screen by electronic device23 Jul 2026US 2026/0211538 A1Samsung Electronics Co., Ltd.
- Display device, system including the same, and method thereof2 Jul 2026US 2026/0189751 A1LG Electronics Inc.
- Method and device for managing codec configuration of broadcast audio stream28 May 2026US 2026/0147527 A1Samsung Electronics Co., Ltd.
- Techniques for improving the power efficiency of a playback device14 May 2026US 2026/0135515 A1Sonos, Inc.
- Synchronizing Playback of Audio Information Received from Other Networks22 Jan 2026US 2026/0023523 A1Sonos, Inc.
Most cited
By later US patents
- Method for controlling real-time presentation of audio/visual data on a computer system353US 5,692,213 AXerox Corporation · 1997
- Systems and methods for multimedia time stretching300US 7,676,142 B1Corel Corporation · 2010
- Streaming media player varying a play speed from an original to a maximum allowable slowdown proportionally in accordance with a buffer state173US 6,665,751 B1International Business Machines Corporation · 2003
- Personal media broadcasting system with output buffer112US 7,707,614 B2Sling Media, Inc. · 2010
- Video/audio transmission systsem and method103US 5,045,940 AAvid Technology, Inc. · 1991