H04N 19/18
The unit being a set of transform coefficients
Official title: the unit being a set of transform coefficients
H04N19/18 (The unit being a set of transform coefficients) appears on 3,249 US grants and 3,703 published applications in this corpus.
Search patents in H04N- Granted patents
- 3,249
- Published applications
- 3,703
- Assignees
- 519
- Inventors
- 2,579
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 6 | 0 |
| 1991 | 9 | 0 |
| 1992 | 12 | 0 |
| 1993 | 12 | 0 |
| 1994 | 24 | 0 |
| 1995 | 14 | 0 |
| 1996 | 25 | 0 |
| 1997 | 21 | 0 |
| 1998 | 40 | 0 |
| 1999 | 27 | 0 |
| 2000 | 26 | 0 |
| 2001 | 28 | 15 |
| 2002 | 30 | 50 |
| 2003 | 50 | 68 |
| 2004 | 36 | 48 |
| 2005 | 38 | 90 |
| 2006 | 58 | 90 |
| 2007 | 48 | 92 |
| 2008 | 62 | 83 |
| 2009 | 46 | 82 |
| 2010 | 88 | 85 |
| 2011 | 79 | 88 |
| 2012 | 87 | 94 |
| 2013 | 92 | 151 |
| 2014 | 91 | 113 |
| 2015 | 129 | 185 |
| 2016 | 155 | 141 |
| 2017 | 150 | 108 |
| 2018 | 133 | 139 |
| 2019 | 156 | 153 |
| 2020 | 156 | 178 |
| 2021 | 142 | 206 |
| 2022 | 185 | 341 |
| 2023 | 227 | 259 |
| 2024 | 287 | 311 |
| 2025 | 286 | 311 |
| 2026 | 189 | 222 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for applying deblocking filters to reconstructed video data6 Oct 2026US 12,756,823 B2Sharp Kabushiki Kaisha
- Transform-based image coding method, and apparatus therefor6 Oct 2026US 12,756,845 B2LG Electronics Inc.
- Transform-based image decoding/encoding apparatus and apparatus for transmitting therefor29 Sep 2026US 12,750,524 B2LG Electronics Inc.
- Method for coding image on basis of secondary transform and device therefor29 Sep 2026US 12,750,525 B2LG Electronics Inc.
- Decoding method, encoding method, and storage medium29 Sep 2026US 12,750,526 B2Guangdong Oppo Mobile Telecommunications Corp., Ltd.
- Entropy Coding Using Pre-Defined, Fixed CDFS8 Oct 2026US 2026/0313125 A1Google Inc.
- Transform based image coding method and apparatus therefor8 Oct 2026US 2026/0313126 A1Lx Semicon Co., Ltd.
- Operation range extension for versatile video coding8 Oct 2026US 2026/0313135 A1Guangdong Oppo Mobile Telecommunications Corp., Ltd.
- Adaptive intra block copy filtering1 Oct 2026US 2026/0303794 A1Tencent Technology (Shenzhen) Company Limited
- Operation range extension for versatile video coding1 Oct 2026US 2026/0303826 A1Guangdong Oppo Mobile Telecommunications Corp., Ltd.
Most cited
By later US patents
- Electronic still camera providing multi-format storage of full and reduced resolution images544US 5,164,831 AEastman Kodak Company · 1992
- Motion video compression system with adaptive bit allocation and quantization401US 5,231,484 AInternational Business Machines Corporation · 1993
- An HDTV compression system289US 5,122,875 AGeneral Electric Company · 1992
- Digital video compression system utilizing vector adaptive transform278US 5,367,629 AShareVision Technology, Inc. · 1994
- Filmless digital camera with selective image compression268US 5,249,053 ADycam Inc. · 1993