H04N 19/625
Using discrete cosine transform [dct]
Official title: using discrete cosine transform [DCT]
H04N19/625 (Using discrete cosine transform [dct]) appears on 1,542 US grants and 1,986 published applications in this corpus.
Search patents in H04N- Granted patents
- 1,542
- Published applications
- 1,986
- Assignees
- 374
- Inventors
- 1,490
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 4 |
| 2002 | 1 | 8 |
| 2003 | 10 | 20 |
| 2004 | 10 | 31 |
| 2005 | 12 | 33 |
| 2006 | 16 | 34 |
| 2007 | 22 | 32 |
| 2008 | 15 | 22 |
| 2009 | 15 | 23 |
| 2010 | 47 | 37 |
| 2011 | 32 | 48 |
| 2012 | 39 | 45 |
| 2013 | 54 | 76 |
| 2014 | 55 | 77 |
| 2015 | 85 | 139 |
| 2016 | 97 | 96 |
| 2017 | 105 | 80 |
| 2018 | 75 | 88 |
| 2019 | 89 | 86 |
| 2020 | 92 | 121 |
| 2021 | 91 | 105 |
| 2022 | 113 | 128 |
| 2023 | 116 | 107 |
| 2024 | 122 | 184 |
| 2025 | 122 | 188 |
| 2026 | 101 | 174 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Arithmetic encoder for arithmetically encoding and arithmetic decoder for arithmetically decoding a sequence of information values, methods for arithmetically encoding and decoding a sequence of information values and computer program for implementing these methods6 Oct 2026US 12,756,405 B2Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e. V.
- Method and apparatus for reconstructing image using image partitioning with rotation information6 Oct 2026US 12,756,821 B2B1 Institute of Image Technology, Inc.
- Method and apparatus for encoding multi plane image based volumetric video6 Oct 2026US 12,756,865 B2Electronics and Telecommunications Research Institute
- Image data encoding/decoding method and apparatus6 Oct 2026US 12,756,935 B2B1 Insitute of Image Technology, Inc.
- Image data encoding/decoding method and apparatus29 Sep 2026US 12,750,473 B2B1 Institute of Image Technology, Inc.
- Image data encoding/decoding method and apparatus8 Oct 2026US 2026/0313083 A1B1 Institute of Image Technology, Inc.
- Image data encoding/decoding method and apparatus1 Oct 2026US 2026/0303808 A1B1 Institute of Image Technology, Inc.
- Implicit transform selection1 Oct 2026US 2026/0303850 A1Tencent America LLC
- Arithmetic encoder for arithmetically encoding and arithmetic decoder for arithmetically decoding a sequence of information values, methods for arithmetically encoding and decoding a sequence of information values and computer program for implementing these methods24 Sep 2026US 2026/0291518 A1
- Method and apparatus for reconstructing 360-degree image according to projection format24 Sep 2026US 2026/0292129 A1B1 Institute of Image Technology, Inc.
Most cited
By later US patents
- Context adaptive variable length decoding system and method262US 6,646,578 B1UB Video Inc. · 2003
- Point-to-multipoint digital radio frequency transport258US 6,704,545 B1ADC Telecommunications, Inc. · 2004
- Systems and methods for decoding light field image files233US 8,542,933 B2Pelican Imaging Corporation · 2013
- Systems and methods for decoding light field image files204US 8,831,367 B2Pelican Imaging Corporation · 2014
- Image sequence coding method and decoding method180US 6,295,376 B1Hitachi, Ltd. · 2001