H04N 1/56
Processing of colour picture signals
Official title: Processing of colour picture signals (H04N1/52 takes precedence)
H04N1/56 (Processing of colour picture signals) appears on 10,883 US grants and 10,184 published applications in this corpus.
Search patents in H04N- Granted patents
- 10,883
- Published applications
- 10,184
- Assignees
- 1,491
- Inventors
- 12,089
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 8 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 6 | 0 |
| 1981 | 10 | 0 |
| 1982 | 10 | 0 |
| 1983 | 15 | 0 |
| 1984 | 21 | 0 |
| 1985 | 17 | 0 |
| 1986 | 22 | 0 |
| 1987 | 51 | 0 |
| 1988 | 41 | 0 |
| 1989 | 59 | 0 |
| 1990 | 79 | 0 |
| 1991 | 62 | 0 |
| 1992 | 93 | 0 |
| 1993 | 95 | 0 |
| 1994 | 132 | 0 |
| 1995 | 112 | 0 |
| 1996 | 133 | 0 |
| 1997 | 102 | 0 |
| 1998 | 194 | 0 |
| 1999 | 178 | 0 |
| 2000 | 185 | 0 |
| 2001 | 189 | 84 |
| 2002 | 180 | 305 |
| 2003 | 221 | 367 |
| 2004 | 237 | 490 |
| 2005 | 264 | 612 |
| 2006 | 379 | 499 |
| 2007 | 364 | 565 |
| 2008 | 413 | 512 |
| 2009 | 390 | 564 |
| 2010 | 457 | 488 |
| 2011 | 489 | 438 |
| 2012 | 509 | 435 |
| 2013 | 585 | 370 |
| 2014 | 572 | 346 |
| 2015 | 474 | 413 |
| 2016 | 369 | 411 |
| 2017 | 399 | 511 |
| 2018 | 395 | 450 |
| 2019 | 490 | 413 |
| 2020 | 421 | 354 |
| 2021 | 308 | 316 |
| 2022 | 323 | 316 |
| 2023 | 272 | 273 |
| 2024 | 251 | 267 |
| 2025 | 171 | 226 |
| 2026 | 126 | 159 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Printing apparatus, printing method, and program6 Oct 2026US 12,752,547 B2Canon Kabushiki Kaisha
- Color correction matrix calibration for high dynamic range sensors6 Oct 2026US 12,756,789 B2NVIDIA Corporation
- Information processing apparatus, method for the same, and storage medium6 Oct 2026US 12,756,790 B2Canon Kabushiki Kaisha
- Image reading apparatus with image sensors and color measurer6 Oct 2026US 12,756,791 B2Konica Minolta, Inc.
- Method and image device to obtain image of water shooting scene using color temperature data, and performing white balance process6 Oct 2026US 12,756,808 B2Sz Dji Technology Co., Ltd.
- Inkjet print planning method8 Oct 2026US 2026/0313057 A1Kateeva, Inc.
- Smoothing of passthrough frame sequences in video see-through (vst) extended reality (xr) or other applications8 Oct 2026US 2026/0313065 A1Samsung Electronics Co., Ltd.
- Image processing apparatus, image processing method, and non-transitory computer-readable medium8 Oct 2026US 2026/0313066 A1Sharp Kabushiki Kaisha
- Image processing apparatus, image processing method, and non-transitory computer-readable medium8 Oct 2026US 2026/0313067 A1Sharp Kabushiki Kaisha
- Image processing apparatus, image processing method, and storage medium8 Oct 2026US 2026/0313068 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Methods for differential image quality enhancement for a multiple detector system, systems and use thereof1,019US 9,471,969 B2ExxonMobil Upstream Research Company · 2016
- Image processing method and apparatus, computer program, and computer-readable storage medium815US 8,483,509 B2Canon Kabushiki Kaisha · 2013
- Graphical user interface for controlling color gamut clipping448US 5,416,890 AXerox Corporation · 1995
- Color reproduction system404US 4,500,919 AMassachusetts Institute of Technology · 1985
- Red-eye filter method and apparatus395US 6,407,777 B12002