H04N 1/0087
With hidden additional data
Official title: {with hidden additional data, e.g. data invisible to the human eye}
H04N1/0087 (With hidden additional data) appears on 166 US grants and 135 published applications in this corpus.
Search patents in H04N- Granted patents
- 166
- Published applications
- 135
- Assignees
- 41
- Inventors
- 259
- Latest grant
- 26 Mar 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 6 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 3 |
| 2002 | 10 | 9 |
| 2003 | 5 | 7 |
| 2004 | 9 | 2 |
| 2005 | 2 | 3 |
| 2006 | 4 | 2 |
| 2007 | 2 | 12 |
| 2008 | 4 | 10 |
| 2009 | 5 | 11 |
| 2010 | 6 | 16 |
| 2011 | 11 | 8 |
| 2012 | 4 | 4 |
| 2013 | 15 | 8 |
| 2014 | 17 | 8 |
| 2015 | 6 | 1 |
| 2016 | 5 | 4 |
| 2017 | 4 | 2 |
| 2018 | 5 | 4 |
| 2019 | 6 | 2 |
| 2020 | 3 | 8 |
| 2021 | 7 | 4 |
| 2022 | 2 | 2 |
| 2023 | 4 | 2 |
| 2024 | 1 | 1 |
| 2025 | 0 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and systems for automatically identifying IR security marks based on known halftone frequency and color information26 Mar 2024US 11,941,937 B2Xerox Corporation
- Image processing apparatus and method for determining image data from reading printed document with or without applying light to extract embedded information14 Nov 2023US 11,818,310 B2Canon Kabushiki Kaisha
- Image processing apparatus, method and product that reinforces a portion of a predetermined pattern detected from a scanned image at which intensity has become low10 Oct 2023US 11,785,164 B2Canon Kabushiki Kaisha
- Method for producing security elements in an image which are not visible to the human eye and cannot be copied, and printed image1 Aug 2023US 11,715,309 B2authentic.network GmbH
- Method for reading a code stored in a halftone image and comparison with a retrievable value21 Feb 2023US 11,587,339 B2Industry 365 UG (Haftungsbeschränkt)
- Information processing system and method and non-transitory computer readable medium10 Sep 2026US 2026/0270359 A1FUJIFILM Business Innovation Corp.
- Image processing device, image reading device, image forming apparatus, biological imaging apparatus, and image processing method5 Feb 2026US 2026/0039759 A1Ricoh Company, Ltd.
- Process of signing documents14 Nov 2024US 2024/0380856 A1Freshape SA
- Image processing apparatus and image processing method4 May 2023US 2023/0136221 A1Canon Kabushiki Kaisha
- Methods and systems for automatically identifying ir security marks based on known halftone frequency and color information2 Feb 2023US 2023/0030524 A1Xerox Corporation
Most cited
By later US patents
- Digital watermarks and methods for security documents503US 6,345,104 B12002
- Methods and systems for watermark processing of line art images266US 6,449,377 B1Digimarc Corporation · 2002
- Digital watermarks and methods for security documents266US 6,750,985 B2Digimarc Corporation · 2004
- Methods and devices for recognizing banknotes and responding accordingly220US 6,427,020 B1Digimarc Corporation · 2002
- Image processing with anti-forgery function191US 5,481,377 ACanon Kabushiki Kaisha · 1996