G11B 20/00246
Wherein the key is obtained from a local device
Official title: {wherein the key is obtained from a local device, e.g. device key initially stored by the player or by the recorder}
G11B20/00246 (Wherein the key is obtained from a local device) appears on 266 US grants and 339 published applications in this corpus.
Search patents in G11B- Granted patents
- 266
- Published applications
- 339
- Assignees
- 89
- Inventors
- 490
- Latest grant
- 15 Nov 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 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 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 7 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 3 |
| 2002 | 6 | 12 |
| 2003 | 5 | 34 |
| 2004 | 5 | 29 |
| 2005 | 5 | 37 |
| 2006 | 12 | 27 |
| 2007 | 18 | 47 |
| 2008 | 33 | 45 |
| 2009 | 19 | 31 |
| 2010 | 33 | 27 |
| 2011 | 22 | 9 |
| 2012 | 20 | 9 |
| 2013 | 20 | 7 |
| 2014 | 13 | 6 |
| 2015 | 11 | 3 |
| 2016 | 4 | 3 |
| 2017 | 1 | 3 |
| 2018 | 2 | 1 |
| 2019 | 2 | 2 |
| 2020 | 5 | 3 |
| 2021 | 0 | 1 |
| 2022 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Electronic device capable of protecting confidential data15 Nov 2022US 11,502,832 B2PUFsecurity Corporation
- 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
- Content individualization8 Sep 2020US 10,771,248 B2Sony Corporation
- Method of playing system stream files with different recording formats14 Jul 2020US 10,714,140 B2Panasonic Intellectual Property Corporation of America
- Electronic device capable of protecting confidential data9 Dec 2021US 2021/0385072 A1PUFsecurity Corporation
- 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
- Content individualization4 Jul 2019US 2019/0207761 A1Sony Corporation
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
- Method and apparatus for copy protection for various recording media255US 5,513,260 AMacrovision Corporation · 1996
- Self-protecting digital content240US 7,987,510 B2Rovi Solutions Corporation · 2011