H04N 1/409
Edge or detail enhancement
Official title: Edge or detail enhancement; Noise or error suppression
H04N1/409 (Edge or detail enhancement) appears on 2,006 US grants and 1,708 published applications in this corpus.
Search patents in H04N- Granted patents
- 2,006
- Published applications
- 1,708
- Assignees
- 423
- Inventors
- 2,873
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 5 | 0 |
| 1982 | 7 | 0 |
| 1983 | 3 | 0 |
| 1984 | 10 | 0 |
| 1985 | 8 | 0 |
| 1986 | 18 | 0 |
| 1987 | 18 | 0 |
| 1988 | 19 | 0 |
| 1989 | 20 | 0 |
| 1990 | 14 | 0 |
| 1991 | 20 | 0 |
| 1992 | 17 | 0 |
| 1993 | 21 | 0 |
| 1994 | 18 | 0 |
| 1995 | 16 | 0 |
| 1996 | 27 | 0 |
| 1997 | 32 | 0 |
| 1998 | 38 | 0 |
| 1999 | 33 | 0 |
| 2000 | 32 | 0 |
| 2001 | 30 | 19 |
| 2002 | 21 | 66 |
| 2003 | 33 | 77 |
| 2004 | 47 | 58 |
| 2005 | 31 | 92 |
| 2006 | 82 | 92 |
| 2007 | 69 | 82 |
| 2008 | 72 | 81 |
| 2009 | 62 | 92 |
| 2010 | 84 | 78 |
| 2011 | 80 | 96 |
| 2012 | 89 | 77 |
| 2013 | 107 | 83 |
| 2014 | 130 | 58 |
| 2015 | 77 | 94 |
| 2016 | 95 | 73 |
| 2017 | 72 | 87 |
| 2018 | 64 | 104 |
| 2019 | 116 | 65 |
| 2020 | 85 | 66 |
| 2021 | 46 | 52 |
| 2022 | 53 | 44 |
| 2023 | 37 | 24 |
| 2024 | 21 | 18 |
| 2025 | 9 | 20 |
| 2026 | 9 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Image processing apparatus and image processing method6 Oct 2026US 12,755,361 B2Sony Group Corporation
- Automated total nail care systems, devices and methods15 Sep 2026US 12,733,725 B210Beauty, Inc.
- 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
- Computer-implemented correlation between monitoring data and according inspection data in powder-bed additive manufacturing26 May 2026US 12,636,837 B2Siemens Energy Global GmbH & Co. KG
- Image processing device configured to perform resolution conversion, control method for the same, and storage medium21 Apr 2026US 12,608,756 B2Canon Kabushiki Kaisha
- Method for Making a Printing Plate13 Aug 2026US 2026/0233509 A1Eco3 BV
- Distance measuring method23 Jul 2026US 2026/0210698 A1Mitsubishi Electric Corporation
- Printing apparatus and control method for printing apparatus18 Jun 2026US 2026/0166893 A1Seiko Epson Corporation
- Printing control method, printing apparatus, and non-transitory computer-readable storage medium storing program18 Jun 2026US 2026/0172509 A1Seiko Epson Corporation
- Method of generating dot data and printing apparatus2 Apr 2026US 2026/0095538 A1Seiko Epson Corporation
Most cited
By later US patents
- Method and apparatus for processing a radiation image336US 4,315,318 AFuji Photo Film Co., Ltd. · 1982
- Method and apparatus for extending operating range of bar code scanner229US 6,547,139 B1Welch Allyn Data Collection, Inc. · 2003
- Apparatus and method for reducing imaging errors in imaging systems having an extended depth of field228US 6,097,856 AWelch Allyn, Inc. · 2000
- Digital camera with integrated accelerometers206US 6,747,690 B2Phase One A/S · 2004
- Method and apparatus for sharpening an image by scaling elements of a frequency-domain representation199US 6,421,468 B1Seiko Epson Corporation · 2002