H04N 1/32213
Modulating the least significant bits of pixels
Official title: {Modulating the least significant bits of pixels}
H04N1/32213 (Modulating the least significant bits of pixels) appears on 25 US grants and 27 published applications in this corpus.
Search patents in H04N- Granted patents
- 25
- Published applications
- 27
- Assignees
- 30
- Inventors
- 51
- Latest grant
- 8 Mar 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 2 | 2 |
| 2002 | 1 | 3 |
| 2003 | 1 | 2 |
| 2004 | 2 | 3 |
| 2005 | 2 | 1 |
| 2006 | 1 | 3 |
| 2007 | 3 | 2 |
| 2008 | 3 | 4 |
| 2009 | 3 | 3 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 2 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
By publication year.
Recent patents
- Systems and methods for embedding data in remote session displays8 Mar 2022US 11,270,007 B2Citrix Systems, Inc.
- Systems and methods for embedding data in remote session displays9 Jun 2020US 10,678,929 B2Citrix Systems, Inc.
- Digital watermarking using saturation patterns13 Oct 2015US 9,159,112 B2Hewlett-Packard Development Company, L. P.
- Method and apparatus for preventing data leakage faciliated by steganography5 Mar 2013US 8,391,543 B1Symantec Corporation
- System and method for paper independent copy detection pattern18 Dec 2012US 8,335,744 B2Pitney Bowes Inc.
- Systems and methods for embedding data in remote session displays13 Aug 2020US 2020/0257807 A1Citrix Systems, Inc.
- Systems and methods for embedding data in remote session displays12 Sep 2019US 2019/0278917 A1Citrix Systems, Inc.
- Digital watermarking25 Jul 2013US 2013/0188824 A1Hewlett-Packard Development Company, L. P.
- System and method for paper independent copy detection pattern1 Apr 2010US 2010/0080471 A1Pitney Bowes Inc.
- Method for encoding rendering hints into a bitmap image24 Sep 2009US 2009/0237681 A1Sharp Laboratories of America, Inc.
Most cited
By later US patents
- Digital authentication with analog documents394US 6,243,480 B12001
- Digital authentication with digital and analog documents191US 6,487,301 B1MediaSec Technologies GmbH · 2002
- Method and apparatus for digital watermarking of images67US 6,504,941 B2Hewlett-Packard Company · 2003
- Digital authentication with digital and analog documents65US 6,751,336 B2MediaSec Technologies GmbH · 2004
- Image forming apparatus and copy management system46US 6,738,491 B1Minolta Co., Ltd. · 2004