H04N 21/4402
Involving reformatting operations of video signals for household redistribution, storage or real-time
Official title: involving reformatting operations of video signals for household redistribution, storage or real-time display {(details of conversion of video standards at pixel level H04N7/01; video transcoding H04N19/40; adapting incoming signals to the display format of the display terminal G09G5/005; media handling at the source in data packet switching networks H04L65/764)}
H04N21/4402 (Involving reformatting operations of video signals for household redistribution, storage or real-time) appears on 5,048 US grants and 6,620 published applications in this corpus.
Search patents in H04N- Granted patents
- 5,048
- Published applications
- 6,620
- Assignees
- 1,316
- Inventors
- 9,759
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 7 | 0 |
| 1997 | 17 | 0 |
| 1998 | 28 | 0 |
| 1999 | 26 | 0 |
| 2000 | 38 | 0 |
| 2001 | 43 | 30 |
| 2002 | 51 | 128 |
| 2003 | 48 | 209 |
| 2004 | 77 | 228 |
| 2005 | 61 | 252 |
| 2006 | 109 | 327 |
| 2007 | 92 | 350 |
| 2008 | 109 | 331 |
| 2009 | 145 | 291 |
| 2010 | 172 | 306 |
| 2011 | 177 | 260 |
| 2012 | 242 | 235 |
| 2013 | 264 | 287 |
| 2014 | 311 | 297 |
| 2015 | 280 | 305 |
| 2016 | 255 | 266 |
| 2017 | 282 | 288 |
| 2018 | 238 | 283 |
| 2019 | 272 | 260 |
| 2020 | 283 | 302 |
| 2021 | 279 | 307 |
| 2022 | 274 | 282 |
| 2023 | 268 | 265 |
| 2024 | 233 | 224 |
| 2025 | 222 | 193 |
| 2026 | 126 | 114 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04N 21/440263By altering the spatial resolution1,317
- H04N 21/440218By transcoding between formats or standards721
- H04N 21/440281By altering the temporal resolution696
- H04N 21/440236By media transcoding396
- H04N 21/44029For generating different versions384
- H04N 21/440245The reformatting operation being performed only on part of the stream319
- H04N 21/440227By decomposing into layers253
- H04N 21/440254By altering signal-to-noise parameters96
All 9 subgroupsShow fewer
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By later US patents
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- Method and system for providing targeted advertisements877US 6,718,551 B1BellSouth Intellectual Property Corporation · 2004
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