H04N 2005/91328
The copy protection signal being a copy management signal
Official title: {the copy protection signal being a copy management signal, e.g. a copy generation management signal [CGMS]}
H04N2005/91328 (The copy protection signal being a copy management signal) appears on 414 US grants and 394 published applications in this corpus.
Search patents in H04N- Granted patents
- 414
- Published applications
- 394
- Assignees
- 93
- Inventors
- 582
- Latest grant
- 6 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 9 | 0 |
| 1999 | 18 | 0 |
| 2000 | 15 | 0 |
| 2001 | 23 | 15 |
| 2002 | 40 | 32 |
| 2003 | 22 | 38 |
| 2004 | 25 | 29 |
| 2005 | 21 | 52 |
| 2006 | 21 | 42 |
| 2007 | 31 | 61 |
| 2008 | 23 | 32 |
| 2009 | 18 | 23 |
| 2010 | 30 | 14 |
| 2011 | 28 | 13 |
| 2012 | 26 | 13 |
| 2013 | 18 | 9 |
| 2014 | 10 | 6 |
| 2015 | 7 | 3 |
| 2016 | 4 | 1 |
| 2017 | 2 | 1 |
| 2018 | 1 | 1 |
| 2019 | 2 | 2 |
| 2020 | 2 | 1 |
| 2021 | 2 | 3 |
| 2022 | 1 | 1 |
| 2023 | 2 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
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- Broadcast receiving apparatus24 Jul 2025US 2025/0240487 A1Maxell, Ltd.
- Broadcast receiving apparatus15 Feb 2024US 2024/0056639 A1Maxell, Ltd.
- Broadcast receiving apparatus29 Sep 2022US 2022/0312076 A1Maxell, Ltd.
- Systems and methods for managing local storage of on-demand content25 Nov 2021US 2021/0368229 A1Rovi Guides, Inc.
- Broadcast receiving apparatus7 Oct 2021US 2021/0314666 A1Maxell, Ltd.
Most cited
By later US patents
- Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels1,021US 5,943,422 AIntertrust Technologies Corporation · 1999
- Ergonomic man-machine interface incorporating adaptive pattern recognition based control system507US 6,418,424 B12002
- Ergonomic man-machine interface incorporating adaptive pattern recognition based control system414US 5,901,246 A1999
- Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels387US 6,240,185 B1Intertrust Technologies Corporation · 2001
- Multi-media copy management system382US 5,963,909 ASolana Technology Development Corporation · 1999