H04N 2201/04744
By detecting the scanned beam or a reference beam
Official title: by detecting the scanned beam or a reference beam
H04N2201/04744 (By detecting the scanned beam or a reference beam) appears on 665 US grants and 229 published applications in this corpus.
Search patents in H04N- Granted patents
- 665
- Published applications
- 229
- Assignees
- 134
- Inventors
- 882
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 6 | 0 |
| 1980 | 9 | 0 |
| 1981 | 10 | 0 |
| 1982 | 8 | 0 |
| 1983 | 10 | 0 |
| 1984 | 12 | 0 |
| 1985 | 6 | 0 |
| 1986 | 14 | 0 |
| 1987 | 16 | 0 |
| 1988 | 13 | 0 |
| 1989 | 32 | 0 |
| 1990 | 31 | 0 |
| 1991 | 16 | 0 |
| 1992 | 31 | 0 |
| 1993 | 20 | 0 |
| 1994 | 31 | 0 |
| 1995 | 19 | 0 |
| 1996 | 18 | 0 |
| 1997 | 14 | 0 |
| 1998 | 21 | 0 |
| 1999 | 28 | 0 |
| 2000 | 27 | 0 |
| 2001 | 28 | 12 |
| 2002 | 30 | 25 |
| 2003 | 13 | 18 |
| 2004 | 27 | 22 |
| 2005 | 12 | 20 |
| 2006 | 17 | 24 |
| 2007 | 14 | 18 |
| 2008 | 25 | 25 |
| 2009 | 22 | 20 |
| 2010 | 17 | 13 |
| 2011 | 13 | 12 |
| 2012 | 17 | 7 |
| 2013 | 13 | 3 |
| 2014 | 8 | 3 |
| 2015 | 4 | 3 |
| 2016 | 3 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Image forming apparatus performing halftone processing shifting scan line start position in main-scan direction when scan lines are shifted in sub-scan direction relative to target21 Jul 2026US 12,689,697 B2Canon Kabushiki Kaisha
- Light scanning device and image forming apparatus with the same18 Jun 2019US 10,325,188 B2Sharp Kabushiki Kaisha
- Light scanning device and image forming apparatus with the same28 Aug 2018US 10,062,016 B2Sharp Kabushiki Kaisha
- Device and method for reading out X-ray information stored in a fluorescent storage layer24 Jan 2017US 9,551,797 B2Agfa Healthcare NV
- Single-facet spindle implementation for a laser scanner system26 Jul 2016US 9,402,011 B2Hewlett-Packard Development Company, L. P.
- Image forming apparatus performing halftone processing10 Oct 2024US 2024/0338542 A1Canon Kabushiki Kaisha
- Image formation apparatus30 Apr 2020US 2020/0137258 A1Oki Data Corporation
- Light scanning device and image forming apparatus with the same11 Oct 2018US 2018/0293470 A1Sharp Kabushiki Kaisha
- Light scanning device and image forming apparatus with the same21 Apr 2016US 2016/0110634 A1Sharp Kabushiki Kaisha
- Single-facet spindle implementation for a laser scanner system12 Nov 2015US 2015/0326746 A1Hewlett-Packard Development Company, L. P.
Most cited
By later US patents
- Resonant scanner control system74US 5,121,138 AGeneral Scanning, Inc. · 1992
- Self-resonant scanner biasing system69US 4,686,363 APrintware, Inc. · 1987
- Synchronizing signal generator62US 4,139,257 ACanon Kabushiki Kaisha · 1979
- Optical scanning apparatus and image forming apparatus having defective light source detection61US 6,376,837 B1Ricoh Company, Ltd. · 2002
- Scanning confocal microscope using fluorescence detection57US 5,296,703 AThe Regents of the University of California · 1994