H04N 5/165
To maintain the black level constant
Official title: {to maintain the black level constant}
H04N5/165 (To maintain the black level constant) appears on 50 US grants and 33 published applications in this corpus.
Search patents in H04N- Granted patents
- 50
- Published applications
- 33
- Assignees
- 38
- Inventors
- 104
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 1 |
| 2004 | 1 | 4 |
| 2005 | 0 | 2 |
| 2006 | 1 | 0 |
| 2007 | 5 | 3 |
| 2008 | 3 | 3 |
| 2009 | 0 | 3 |
| 2010 | 1 | 1 |
| 2011 | 1 | 3 |
| 2012 | 3 | 1 |
| 2013 | 1 | 1 |
| 2014 | 3 | 1 |
| 2015 | 0 | 2 |
| 2016 | 4 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 2 |
| 2022 | 0 | 0 |
| 2023 | 2 | 0 |
| 2024 | 0 | 3 |
| 2025 | 2 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Content-optimized ambient light HDR video adaptation4 Aug 2026US 12,700,213 B2Koninklijke Philips N. V.
- Method for black level correction, non-transitory computer-readable storage medium, and chip9 Sep 2025US 12,413,681 B2Beijing Xiaomi Mobile Software Co., Ltd.
- Image sensor having black level correction15 Jul 2025US 12,363,247 B2OmniVision Technologies, Inc.
- Image signal processor, electronic device including image signal processor, and associated methods31 Oct 2023US 11,805,332 B2Samsung Electronics Co., Ltd.
- Black level drift24 Oct 2023US 11,800,040 B2Axis AB
- Information processing system and non-transitory computer-readable storage medium20 Feb 2025US 2025/0063129 A1FUJIFILM Business Innovation Corp.
- Method for black level correction, non-transitory computer-readable storage medium, and chip5 Sep 2024US 2024/0297951 A1Beijing Xiaomi Mobile Software Co., Ltd.
- Image Sensor Having Black Level Correction15 Aug 2024US 2024/0275906 A1OmniVision Technologies, Inc.
- Content-optimized abient light hdr video adaptation18 Jul 2024US 2024/0242472 A1Koninklijke Philips N. V.
- Black level drift2 Dec 2021US 2021/0377425 A1Axis AB
Most cited
By later US patents
- Electronic endoscope system65US 7,728,867 B2Hoya Corporation · 2010
- Image reading unit with black level control33US 4,907,084 AAsahi Kogaku Kogyo Kabushiki Kaisha · 1990
- Video camera apparatus having solid state imager27US 5,283,655 ASony Corporation · 1994
- Analog signal processing apparatus for digital camera24US 6,587,144 B1Hynix Semiconductor Inc. · 2003
- Video signal processing circuit17US 4,369,466 ASony Corporation · 1983