H04N 1/4097
Removing errors due external factors
Official title: {Removing errors due external factors, e.g. dust, scratches}
H04N1/4097 (Removing errors due external factors) appears on 315 US grants and 307 published applications in this corpus.
Search patents in H04N- Granted patents
- 315
- Published applications
- 307
- Assignees
- 95
- Inventors
- 517
- Latest grant
- 4 Jun 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 9 | 4 |
| 2002 | 8 | 20 |
| 2003 | 5 | 19 |
| 2004 | 13 | 9 |
| 2005 | 8 | 26 |
| 2006 | 13 | 22 |
| 2007 | 13 | 18 |
| 2008 | 18 | 9 |
| 2009 | 15 | 11 |
| 2010 | 22 | 18 |
| 2011 | 12 | 11 |
| 2012 | 18 | 8 |
| 2013 | 6 | 12 |
| 2014 | 18 | 9 |
| 2015 | 17 | 14 |
| 2016 | 12 | 13 |
| 2017 | 11 | 16 |
| 2018 | 14 | 16 |
| 2019 | 20 | 12 |
| 2020 | 9 | 14 |
| 2021 | 8 | 9 |
| 2022 | 8 | 9 |
| 2023 | 7 | 3 |
| 2024 | 1 | 1 |
| 2025 | 0 | 3 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Image processing apparatus, control method, and non-transitory computer-readable medium4 Jun 2024US 12,003,685 B2Sharp Kabushiki Kaisha
- Image reading device, image reading method, non-transitory recording medium storing computer readable program, and image formation device5 Sep 2023US 11,745,497 B2Konica Minolta, Inc.
- Image reading apparatus with correction for streak images outside of areas having printed content5 Sep 2023US 11,750,761 B2Canon Kabushiki Kaisha
- Reading device and image forming apparatus with foreign-object detection by comparing image from reading background with image from reading background and recording medium22 Aug 2023US 11,736,626 B2Ricoh Company, Ltd.
- Multi-mode scanning device21 Mar 2023US 11,611,681 B2Avision Inc.
- Distance measuring method23 Jul 2026US 2026/0210698 A1Mitsubishi Electric Corporation
- Image forming apparatus, image forming system, inspection method, and non-transitory recording medium27 Mar 2025US 2025/0104218 A1Ricoh Company, Ltd.
- Image reading apparatus2 Jan 2025US 2025/0008043 A1FUJIFILM Business Innovation Corp.
- Image reading apparatus2 Jan 2025US 2025/0008045 A1FUJIFILM Business Innovation Corp.
- Image reading device and image reading method29 Aug 2024US 2024/0291929 A1Seiko Epson Corporation
Most cited
By later US patents
- Mapping defects or dirt dynamically affecting an image acquisition device150US 6,035,072 A2000
- System and method for image recovery144US 5,266,805 AInternational Business Machines Corporation · 1993
- Detection and removal of blemishes in digital images utilizing original images of defocused scenes135US 7,295,233 B2FotoNation Vision Limited · 2007
- Vertical black line removal implementation101US 6,873,728 B2Eastman Kodak Company · 2005
- Image input device with dust detector96US 6,792,161 B1Minolta Co., Ltd. · 2004