H04N 1/4052
By error diffusion, i.e. transferring the binarising error to neighbouring dot decisions
Official title: {by error diffusion, i.e. transferring the binarising error to neighbouring dot decisions}
H04N1/4052 (By error diffusion, i.e. transferring the binarising error to neighbouring dot decisions) appears on 674 US grants and 436 published applications in this corpus.
Search patents in H04N- Granted patents
- 674
- Published applications
- 436
- Assignees
- 152
- Inventors
- 739
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 9 | 0 |
| 1991 | 11 | 0 |
| 1992 | 13 | 0 |
| 1993 | 13 | 0 |
| 1994 | 28 | 0 |
| 1995 | 18 | 0 |
| 1996 | 22 | 0 |
| 1997 | 19 | 0 |
| 1998 | 24 | 0 |
| 1999 | 21 | 0 |
| 2000 | 25 | 0 |
| 2001 | 21 | 6 |
| 2002 | 14 | 25 |
| 2003 | 17 | 17 |
| 2004 | 16 | 20 |
| 2005 | 16 | 35 |
| 2006 | 19 | 39 |
| 2007 | 25 | 24 |
| 2008 | 33 | 23 |
| 2009 | 24 | 27 |
| 2010 | 18 | 26 |
| 2011 | 21 | 21 |
| 2012 | 34 | 27 |
| 2013 | 32 | 16 |
| 2014 | 36 | 16 |
| 2015 | 23 | 13 |
| 2016 | 11 | 11 |
| 2017 | 16 | 26 |
| 2018 | 20 | 16 |
| 2019 | 16 | 12 |
| 2020 | 16 | 9 |
| 2021 | 6 | 7 |
| 2022 | 9 | 8 |
| 2023 | 6 | 4 |
| 2024 | 6 | 4 |
| 2025 | 5 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of generating multiplexed image for printing based on color values gamut-mapped to inside maximum volume hyperrectangle8 Sep 2026US 12,732,586 B2Centre National De La Recherche Scientifique
- Image processing apparatus, printing apparatus, and image processing method for converting image data into dot data19 Aug 2025US 12,395,600 B2Seiko Epson Corporation
- Mobile terminal having a light source and an application to extract embedded information from an illuminated printed image and method8 Jul 2025US 12,356,085 B2Canon Kabushiki Kaisha
- Method and system for presenting digital art images on digital art frames with electronic paper displays27 May 2025US 12,315,416 B2INKcoming
- Image processing apparatus to improve dot dispersibility with N-gradation multi-valued data, image processing method, and storage medium13 May 2025US 12,301,773 B2Canon Kabushiki Kaisha
- Reading apparatus, reading method, and storage medium8 Oct 2026US 2026/0313062 A1Canon Kabushiki Kaisha
- Image processing apparatus and image processing method15 Jan 2026US 2026/0017802 A1Seiko Epson Corporation
- Method of generating a multiplexed image for printing17 Apr 2025US 2025/0126219 A1Centre National De La Recherche Scientifique
- Control method that makes it possible to use halftone processing, information processing apparatus, and storage medium27 Feb 2025US 2025/0071227 A1Canon Kabushiki Kaisha
- Information processing apparatus, information processing system, information processing method, and storage medium13 Jun 2024US 2024/0196106 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Method for edge enhanced error diffusion103US 5,045,952 AXerox Corporation · 1991
- Measuring digital watermark strength using error correction coding metrics99US 6,993,154 B2Digimarc Corporation · 2006
- Adaptive error diffusion with improved edge and sharpness perception93US 6,671,068 B1Sharp Laboratories of America, Inc. · 2003
- Halftoning with changeable error diffusion weights92US 6,172,768 B2Canon Kabushiki Kaisha · 2001
- System for reproducing multi-level digital images on a bi-level printer of fixed dot size90US 4,654,721 AInternational Business Machines Corporation · 1987