H04N 19/122
Selection of transform size
Official title: Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
H04N19/122 (Selection of transform size) appears on 1,987 US grants and 2,336 published applications in this corpus.
Search patents in H04N- Granted patents
- 1,987
- Published applications
- 2,336
- Assignees
- 332
- Inventors
- 1,515
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
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| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 8 | 0 |
| 1998 | 8 | 0 |
| 1999 | 15 | 0 |
| 2000 | 9 | 0 |
| 2001 | 10 | 3 |
| 2002 | 11 | 15 |
| 2003 | 28 | 47 |
| 2004 | 14 | 31 |
| 2005 | 13 | 44 |
| 2006 | 30 | 47 |
| 2007 | 22 | 28 |
| 2008 | 21 | 49 |
| 2009 | 26 | 36 |
| 2010 | 20 | 20 |
| 2011 | 32 | 75 |
| 2012 | 46 | 91 |
| 2013 | 56 | 83 |
| 2014 | 99 | 119 |
| 2015 | 104 | 175 |
| 2016 | 128 | 109 |
| 2017 | 161 | 122 |
| 2018 | 111 | 121 |
| 2019 | 122 | 110 |
| 2020 | 110 | 131 |
| 2021 | 121 | 159 |
| 2022 | 121 | 190 |
| 2023 | 148 | 140 |
| 2024 | 164 | 138 |
| 2025 | 145 | 135 |
| 2026 | 70 | 118 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- System and method for transmitting a digital image over a communication network277US 6,314,452 B1RTImage, Ltd. · 2001
- Method and apparatus for embedding data, including watermarks, in human perceptible images265US 6,031,914 ARegents of the University of Minnesota · 2000
- Context-based adaptive variable length coding for adaptive block transforms227US 6,795,584 B2Nokia Corporation · 2004
- Reversible wavelet transform and embedded codestream manipulation194US 5,867,602 ARicoh Company, Ltd. · 1999
- Compression/decompression using reversible embedded wavelets164US 5,966,465 ARicoh Company, Ltd. · 1999