G11B 20/0042
The copy protection scheme being related to a specific access protection standard
Official title: {the copy protection scheme being related to a specific access protection standard}
G11B20/0042 (The copy protection scheme being related to a specific access protection standard) appears on 197 US grants and 272 published applications in this corpus.
Search patents in G11B- Granted patents
- 197
- Published applications
- 272
- Assignees
- 74
- Inventors
- 382
- Latest grant
- 1 Feb 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 3 | 0 |
| 2002 | 1 | 6 |
| 2003 | 4 | 14 |
| 2004 | 4 | 13 |
| 2005 | 3 | 9 |
| 2006 | 5 | 11 |
| 2007 | 6 | 30 |
| 2008 | 11 | 40 |
| 2009 | 16 | 49 |
| 2010 | 9 | 29 |
| 2011 | 27 | 22 |
| 2012 | 25 | 18 |
| 2013 | 17 | 10 |
| 2014 | 30 | 5 |
| 2015 | 13 | 1 |
| 2016 | 5 | 6 |
| 2017 | 5 | 1 |
| 2018 | 6 | 4 |
| 2019 | 2 | 1 |
| 2020 | 4 | 3 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
By publication year.
Subgroups
Granted patents
- G11B 20/00449Content scrambling system [css]94
- G11B 20/00427Advanced access content system [aacs]71
- G11B 20/00442Content protection for recordable media [cprm]14
- G11B 20/00463High-bandwidth digital content protection [hdcp]9
- G11B 20/00471Video content protection system [vcps]7
- G11B 20/00456Digital transmission content protection [dtcp]6
- G11B 20/00434Content protection for pre-recorded media [cppm]0
Recent patents
- Method of playing system stream files with different recording formats1 Feb 2022US 11,238,897 B2Panasonic Intellectual Property Corporation of America
- Method of playing system stream files with different recording formats13 Oct 2020US 10,803,901 B2Panasonic Intellectual Property Corporation of America
- Information processing device and information processing method14 Jul 2020US 10,713,336 B2Sony Corporation
- Method of playing system stream files with different recording formats14 Jul 2020US 10,714,140 B2Panasonic Intellectual Property Corporation of America
- Method of playing system stream files with different recording formats18 Feb 2020US 10,566,025 B2Panasonic Intellectual Property Corporation of America
- Method of playing system stream files with different recording formats31 Dec 2020US 2020/0411045 A1Panasonic Intellectual Property Corporation of America
- Method of playing system stream files with different recording formats7 May 2020US 2020/0143833 A1Panasonic Intellectual Property Corporation of America
- Method of playing system stream files with different recording formats7 May 2020US 2020/0143834 A1Panasonic Intellectual Property Corporation of America
- Method of playing system stream files with different recording formats9 May 2019US 2019/0139573 A1Panasonic Intellectual Property Corporation of America
- Avoiding link integrity failures on displayport during hcdp 2.2 by using sink side optimizations13 Dec 2018US 2018/0359090 A1QUALCOMM Incorporated
Most cited
By later US patents
- Reprogrammable security for controlling piracy and enabling interactive content298US 8,571,993 B2Irdeto USA, Inc. · 2013
- Self-protecting digital content262US 7,984,511 B2Rovi Solutions Corporation · 2011
- Method and apparatus for copy protection258US 6,523,113 B1Apple Computer, Inc. · 2003
- Self-protecting digital content240US 7,987,510 B2Rovi Solutions Corporation · 2011
- Apparatus, method and computer program product for protecting copyright data within a computer system220US 6,236,727 B1International Business Machines Corporation · 2001