H04N 1/32251
In multilevel data
Official title: {in multilevel data, e.g. greyscale or continuous tone data}
H04N1/32251 (In multilevel data) appears on 447 US grants and 362 published applications in this corpus.
Search patents in H04N- Granted patents
- 447
- Published applications
- 362
- Assignees
- 90
- Inventors
- 352
- Latest grant
- 23 Apr 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 14 | 0 |
| 1999 | 6 | 0 |
| 2000 | 11 | 0 |
| 2001 | 20 | 11 |
| 2002 | 19 | 43 |
| 2003 | 39 | 31 |
| 2004 | 29 | 21 |
| 2005 | 14 | 27 |
| 2006 | 31 | 25 |
| 2007 | 17 | 28 |
| 2008 | 30 | 25 |
| 2009 | 25 | 31 |
| 2010 | 31 | 31 |
| 2011 | 36 | 22 |
| 2012 | 25 | 9 |
| 2013 | 19 | 7 |
| 2014 | 7 | 3 |
| 2015 | 12 | 6 |
| 2016 | 8 | 7 |
| 2017 | 6 | 9 |
| 2018 | 10 | 5 |
| 2019 | 7 | 7 |
| 2020 | 5 | 5 |
| 2021 | 4 | 4 |
| 2022 | 4 | 3 |
| 2023 | 3 | 1 |
| 2024 | 3 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Image processing apparatus and image processing method that obtain multiplexed images and output print data using multiplexed image23 Apr 2024US 11,968,343 B2Canon Kabushiki Kaisha
- Semi-transparent embedded watermarks23 Apr 2024US 11,968,344 B2Google Inc.
- Predicting detectability and grading prior to printing23 Jan 2024US 11,882,255 B2Digimarc Corporation
- Data hiding through optimization of color error and modulation error7 Nov 2023US 11,810,378 B2Digimarc Corporation
- 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
- Predicting detectability and grading prior to printing19 Sep 2024US 2024/0314252 A1Digimarc Corporation
- Image processing apparatus and image processing method14 Sep 2023US 2023/0291857 A1Canon Kabushiki Kaisha
- Printing image-independent print data based on pixel characteristics24 Nov 2022US 2022/0377199 A1Hewlett-Packard Development Company, L. P.
- Data hiding for spot colors on substrates20 Oct 2022US 2022/0335740 A1Digimarc Corporation
- Semi-Transparent Embedded Watermarks4 Aug 2022US 2022/0247884 A1Google Inc.
Most cited
By later US patents
- Methods for surveying dissemination of proprietary empirical data1,132US 5,862,260 ADigimarc Corporation · 1999
- Computer system linked by using information in data objects1,131US 6,122,403 ADigimarc Corporation · 2000
- Linking of computers based on optical sensing of digital data942US 6,311,214 B1Digimarc Corporation · 2001
- Watermark embedder and reader942US 6,614,914 B1Digimarc Corporation · 2003
- Connected audio and other media objects859US 6,505,160 B1Digimarc Corporation · 2003