H04N 9/7904
Using intermediate digital signal processing
Official title: {using intermediate digital signal processing}
H04N9/7904 (Using intermediate digital signal processing) appears on 142 US grants and 102 published applications in this corpus.
Search patents in H04N- Granted patents
- 142
- Published applications
- 102
- Assignees
- 25
- Inventors
- 129
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 6 | 0 |
| 1997 | 0 | 0 |
| 1998 | 11 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 1 |
| 2012 | 1 | 6 |
| 2013 | 1 | 18 |
| 2014 | 3 | 10 |
| 2015 | 16 | 9 |
| 2016 | 4 | 15 |
| 2017 | 20 | 2 |
| 2018 | 11 | 6 |
| 2019 | 16 | 16 |
| 2020 | 10 | 4 |
| 2021 | 12 | 3 |
| 2022 | 3 | 5 |
| 2023 | 4 | 2 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Synchronizing playback by media playback devices28 Oct 2025US 12,457,278 B2Sonos, Inc.
- Playback device19 Mar 2024US 11,934,739 B2Sonos, Inc.
- Image capturing apparatus and image capturing method5 Sep 2023US 11,750,937 B2Sony Group Corporation
- Synchronizing playback by media playback devices11 Apr 2023US 11,625,221 B2
- Synchronizing playback by media playback devices17 Jan 2023US 11,556,305 B2Sonos, Inc.
- Synchronizing Playback by Media Playback Devices14 Mar 2024US 2024/0086144 A1Sonos, Inc.
- Playback Device16 Nov 2023US 2023/0367541 A1Sonos, Inc.
- Image capturing apparatus and image capturing method2 Nov 2023US 2023/0353887 A1Sony Group Corporation
- Image capturing apparatus and image capturing method1 Sep 2022US 2022/0279154 A1Sony Group Corporation
- Synchronizing Playback by Media Playback Devices21 Jul 2022US 2022/0229631 A1Sonos, Inc.
Most cited
By later US patents
- System and method for synchronizing operations among a plurality of independently clocked digital data processing devices1,949US 8,234,395 B2Sonos, Inc. · 2012
- Systems and methods for synchronizing operations among a plurality of independently clocked digital data processing devices without a voltage controlled crystal oscillator262US 8,370,678 B2Sonos, Inc. · 2013
- Systems and methods for synchronizing operations among a plurality of independently clocked digital data processing devices without a voltage controlled crystal oscillator171US 8,020,023 B2Sonos, Inc. · 2011
- System and method for synchronizing operations among a plurality of independently clocked digital data processing devices156US 9,195,258 B2Sonos, Inc. · 2015
- Method and apparatus for switching between a directly connected and a networked audio source87US 10,157,033 B2Sonos, Inc. · 2018