G11B 20/00905
Multiple watermarks used in combination
Official title: {multiple watermarks used in combination}
G11B20/00905 (Multiple watermarks used in combination) appears on 14 US grants and 19 published applications in this corpus.
Search patents in G11B- Granted patents
- 14
- Published applications
- 19
- Assignees
- 13
- Inventors
- 38
- Latest grant
- 14 Jun 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 1 | 2 |
| 2003 | 0 | 4 |
| 2004 | 0 | 0 |
| 2005 | 1 | 2 |
| 2006 | 0 | 1 |
| 2007 | 4 | 2 |
| 2008 | 1 | 2 |
| 2009 | 1 | 1 |
| 2010 | 2 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 3 |
| 2018 | 2 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
By publication year.
Recent patents
- Watermarking of events of an ordered event stream14 Jun 2022US 11,360,992 B2EMC IP Holding Company LLC
- Motion detection for A/V recording and communication devices18 Jun 2019US 10,325,625 B2Amazon Technologies, Inc.
- Motion detection for A/V recording and communication devices4 Dec 2018US 10,147,456 B2Amazon Technologies, Inc.
- Motion detection for A/V recording and communication devices4 Sep 2018US 10,068,610 B2Amazon Technologies, Inc.
- Multiple watermarks for digital rights management (DRM) and content tracking21 Sep 2010US 7,802,306 B1Qurio Holdings, Inc.
- Watermarking of Events of an Ordered Event Stream30 Dec 2021US 2021/0406273 A1EMC IP Holding Company LLC
- Motion detection for a/v recording and communication devices8 Jun 2017US 2017/0160138 A1BOT Home Automation, Inc.
- Motion detection for a/v recording and communication devices8 Jun 2017US 2017/0160144 A1BOT Home Automation, Inc.
- Motion detection for a/v recording and communication devices8 Jun 2017US 2017/0162225 A1BOT Home Automation, Inc.
- Management server device, content reproduction device, and recording medium23 Jun 2011US 2011/0154504 A1
Most cited
By later US patents
- Formation and analysis of signals with common and transaction watermarks222US 6,430,301 B1Verance Corporation · 2002
- Digital content distribution system and method144US 7,162,642 B2Digital Video Express, L.P. · 2007
- Enhanced copy protection of proprietary material employing multiple watermarks72US 6,931,536 B2Macrovision Corporation · 2005
- Digital content distribution system and method31US 7,698,570 B2Dolby Laboratories Licensing Corporation · 2010
- Marking articles using a covert digitally watermarked image22US 7,529,385 B2Spectra Systems Corporation · 2009