H04N 1/32304
Embedding different sets of additional information
Official title: {Embedding different sets of additional information}
H04N1/32304 (Embedding different sets of additional information) appears on 219 US grants and 208 published applications in this corpus.
Search patents in H04N- Granted patents
- 219
- Published applications
- 208
- Assignees
- 68
- Inventors
- 250
- Latest grant
- 6 Dec 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 6 | 4 |
| 2002 | 8 | 23 |
| 2003 | 6 | 23 |
| 2004 | 19 | 12 |
| 2005 | 8 | 21 |
| 2006 | 17 | 11 |
| 2007 | 12 | 15 |
| 2008 | 11 | 14 |
| 2009 | 13 | 12 |
| 2010 | 18 | 23 |
| 2011 | 16 | 8 |
| 2012 | 26 | 6 |
| 2013 | 8 | 5 |
| 2014 | 8 | 2 |
| 2015 | 4 | 6 |
| 2016 | 6 | 5 |
| 2017 | 4 | 6 |
| 2018 | 8 | 2 |
| 2019 | 5 | 3 |
| 2020 | 5 | 5 |
| 2021 | 2 | 2 |
| 2022 | 3 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Embedding user specific information into user specific information input area of document6 Dec 2022US 11,523,024 B2Hewlett-Packard Development Company, L. P.
- Computer method and system for generating images with encoded information, images obtained by this method and image reading method and system12 Jul 2022US 11,388,310 B2Imprensa Nacional Casa da Moeda, SA
- Detection of encoded signals and icons22 Feb 2022US 11,257,198 B1Digimarc Corporation
- Image processing apparatus and method for control to smooth a character region of a binary image and perform character recognition3 Aug 2021US 11,082,581 B2Canon Kabushiki Kaisha
- Pixelation density increment for embedding information27 Jul 2021US 11,076,069 B2Idemia Identity & Security USA LLC
- Embedding user specific information into user specific information input area of document2 Dec 2021US 2021/0377420 A1Hewlett-Packard Development Company, L. P.
- Powers of lasers to print colors of security pixels11 Nov 2021US 2021/0352189 A1Hewlett-Packard Development Company, L. P.
- Information processing apparatus, information processing system, and non-transitory computer readable medium storing information processing program for verifying an electronic signature17 Sep 2020US 2020/0296253 A1Fuji Xerox Co., Ltd.
- Computer method and system for generating images with encoded information, images obtained by this method and image reading method and system3 Sep 2020US 2020/0279346 A1Imprensa Nacional Casa da Moeda, SA
- Image forming apparatus, image forming system, image forming method, and recording medium28 May 2020US 2020/0167454 A1
Most cited
By later US patents
- Digital watermarking618US 5,915,027 ANEC Corporation · 1999
- Watermarking process resilient to collusion attacks512US 5,664,018 A1997
- Digital watermarks and methods for security documents503US 6,345,104 B12002
- Methods and systems for encoding and protecting data using digital signature and watermarking techniques486US 6,785,815 B1Intertrust Technologies Corporation · 2004
- Method for protecting content using watermarking392US 5,949,885 A1999