H04N 5/202
Gamma control
Official title: Gamma control (circuits for controlling camera response irrespective of the scene brightness H04N23/82)
H04N5/202 (Gamma control) appears on 195 US grants and 171 published applications in this corpus.
Search patents in H04N- Granted patents
- 195
- Published applications
- 171
- Assignees
- 135
- Inventors
- 414
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 7 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 2 |
| 2002 | 4 | 4 |
| 2003 | 6 | 8 |
| 2004 | 1 | 2 |
| 2005 | 2 | 7 |
| 2006 | 7 | 10 |
| 2007 | 2 | 13 |
| 2008 | 8 | 10 |
| 2009 | 9 | 14 |
| 2010 | 6 | 12 |
| 2011 | 7 | 6 |
| 2012 | 11 | 7 |
| 2013 | 8 | 7 |
| 2014 | 6 | 1 |
| 2015 | 2 | 4 |
| 2016 | 6 | 4 |
| 2017 | 3 | 5 |
| 2018 | 3 | 10 |
| 2019 | 11 | 6 |
| 2020 | 8 | 9 |
| 2021 | 4 | 1 |
| 2022 | 3 | 3 |
| 2023 | 6 | 10 |
| 2024 | 3 | 7 |
| 2025 | 6 | 4 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Image processing apparatus and method of operating the same16 Jun 2026US 12,657,675 B2Samsung Electronics Co., Ltd.
- Display and method of adjusting tone of display12 May 2026US 12,626,630 B2Hannstar Display Corp.
- Dynamic tone mapping21 Apr 2026US 12,608,783 B2Roku, Inc.
- Audiovisual system with shared image-processing procedure and method for processing video therein3 Mar 2026US 12,567,133 B2Realtek Semiconductor Corp.
- Transmission apparatus, method of transmitting image data in high dynamic range, reception apparatus, method of receiving image data in high dynamic range, and program3 Feb 2026US 12,542,863 B2Saturn Licensing LLC
- Dynamic tone mapping6 Aug 2026US 2026/0228870 A1Roku, Inc.
- Video processing method, display device, and storage medium16 Jul 2026US 2026/0203880 A1Honor Device Co., Ltd.
- Transmission apparatus, method of transmitting image data in high dynamic range, reception apparatus, method of receiving image data in high dynamic range, and program2 Jul 2026US 2026/0189672 A1Saturn Licensing LLC
- Image processing apparatus to generate composite image, control method, and recording medium19 Mar 2026US 2026/0082133 A1Canon Kabushiki Kaisha
- Systems and methods for image correction1 Jan 2026US 2026/0006343 A1Zhejiang Dahua Technology Co., Ltd.
Most cited
By later US patents
- Method and apparatus for gamma correction by mapping, transforming and demapping77US 5,408,267 AThe 3DO Company · 1995
- Image memory device and method of operating same60US 5,589,889 AFuji Photo Film Co., Ltd. · 1996
- Adjustable gamma controller50US 4,651,210 ARCA Corporation · 1987
- Digital gamma correction system for low, medium and high intensity video signals, with linear and non-linear correction44US 5,473,373 AIndustrial Technology Research Institute · 1995
- Video system having an adjustable digital gamma correction for contrast enhancement39US 4,394,688 AHamamatsu Systems, Inc. · 1983