H04N 21/440281
By altering the temporal resolution
Official title: {by altering the temporal resolution, e.g. by frame skipping (television signal recording using magnetic recording on tape for reproducing at a rate different from the recording rate H04N5/783)}
H04N21/440281 (By altering the temporal resolution) appears on 696 US grants and 929 published applications in this corpus.
Search patents in H04N- Granted patents
- 696
- Published applications
- 929
- Assignees
- 338
- Inventors
- 1,606
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 9 | 4 |
| 2002 | 7 | 25 |
| 2003 | 11 | 66 |
| 2004 | 13 | 61 |
| 2005 | 11 | 59 |
| 2006 | 28 | 51 |
| 2007 | 22 | 59 |
| 2008 | 29 | 48 |
| 2009 | 35 | 59 |
| 2010 | 40 | 51 |
| 2011 | 20 | 17 |
| 2012 | 38 | 35 |
| 2013 | 51 | 36 |
| 2014 | 52 | 36 |
| 2015 | 41 | 26 |
| 2016 | 26 | 21 |
| 2017 | 19 | 40 |
| 2018 | 28 | 33 |
| 2019 | 26 | 12 |
| 2020 | 30 | 26 |
| 2021 | 27 | 36 |
| 2022 | 25 | 26 |
| 2023 | 23 | 38 |
| 2024 | 25 | 27 |
| 2025 | 26 | 22 |
| 2026 | 14 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Multimedia time warping system1,079US 6,233,389 B1TiVo Inc. · 2001
- Audio and video transmission and receiving system941US 5,132,992 A1992
- 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
- Moving image compression quality enhancement using displacement filters with negative lobes497US 6,728,317 B1Dolby Laboratories Licensing Corporation · 2004