H04N 25/62
Detection or reduction of noise due to excess charges produced by the
Official title: Detection or reduction of noise due to excess charges produced by the exposure, e.g. smear, blooming, ghost image, crosstalk or leakage between pixels
H04N25/62 (Detection or reduction of noise due to excess charges produced by the) appears on 1,865 US grants and 1,748 published applications in this corpus.
Search patents in H04N- Granted patents
- 1,865
- Published applications
- 1,748
- Assignees
- 380
- Inventors
- 2,460
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 5 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 7 | 0 |
| 1985 | 12 | 0 |
| 1986 | 20 | 0 |
| 1987 | 12 | 0 |
| 1988 | 15 | 0 |
| 1989 | 21 | 0 |
| 1990 | 12 | 0 |
| 1991 | 15 | 0 |
| 1992 | 21 | 0 |
| 1993 | 8 | 0 |
| 1994 | 15 | 0 |
| 1995 | 21 | 0 |
| 1996 | 16 | 0 |
| 1997 | 10 | 0 |
| 1998 | 12 | 0 |
| 1999 | 16 | 0 |
| 2000 | 8 | 0 |
| 2001 | 12 | 10 |
| 2002 | 14 | 25 |
| 2003 | 19 | 27 |
| 2004 | 25 | 44 |
| 2005 | 26 | 53 |
| 2006 | 32 | 79 |
| 2007 | 33 | 63 |
| 2008 | 52 | 83 |
| 2009 | 65 | 82 |
| 2010 | 71 | 84 |
| 2011 | 79 | 68 |
| 2012 | 87 | 64 |
| 2013 | 74 | 64 |
| 2014 | 66 | 69 |
| 2015 | 82 | 78 |
| 2016 | 87 | 87 |
| 2017 | 90 | 85 |
| 2018 | 102 | 111 |
| 2019 | 100 | 103 |
| 2020 | 96 | 77 |
| 2021 | 79 | 70 |
| 2022 | 77 | 69 |
| 2023 | 66 | 74 |
| 2024 | 45 | 71 |
| 2025 | 72 | 74 |
| 2026 | 48 | 34 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04N 25/621For the control of blooming725
- H04N 25/626Reduction of noise due to residual charges remaining after image readout348
- H04N 25/625For the control of smear239
- H04N 25/627Detection or reduction of inverted contrast or eclipsing effects173
- H04N 25/628For reducing horizontal stripes caused by saturated regions of cmos sensors84
Recent patents
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Most cited
By later US patents
- Image sensor196US 6,690,000 B1NEC Corporation · 2004
- Unit pixel in CMOS image sensor with enhanced reset efficiency177US 6,900,485 B2Hynix Semiconductor Inc. · 2005
- Camera apparatus165US 4,623,930 AMatsushita Electric Industrial Co., Ltd. · 1986
- Solid state image pickup device driving method utilizing an electronic shutter operation148US 5,025,319 AFuji Photo Film Co., Ltd. · 1991
- Method and apparatus for providing offset for light detector145US 5,352,884 AGeneral Electric Company · 1994