G11B 20/00514
Wherein the entire content is encrypted with the same key
Official title: {wherein the entire content is encrypted with the same key, e.g. disc key or master key}
G11B20/00514 (Wherein the entire content is encrypted with the same key) appears on 69 US grants and 64 published applications in this corpus.
Search patents in G11B- Granted patents
- 69
- Published applications
- 64
- Assignees
- 27
- Inventors
- 120
- Latest grant
- 1 Feb 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 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 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 3 |
| 2002 | 3 | 3 |
| 2003 | 6 | 16 |
| 2004 | 5 | 11 |
| 2005 | 3 | 10 |
| 2006 | 6 | 2 |
| 2007 | 9 | 7 |
| 2008 | 7 | 5 |
| 2009 | 6 | 1 |
| 2010 | 4 | 0 |
| 2011 | 3 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 1 | 1 |
| 2020 | 3 | 3 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
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
- 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 formats5 Mar 2019US 10,224,071 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
- Method of playing system stream files with different recording formats3 May 2018US 2018/0122420 A1Panasonic Intellectual Property Corporation of Ame Rica
Most cited
By later US patents
- Method and apparatus for selectively recording a broadcast306US 4,305,101 ACodart, Inc. · 1981
- Method and apparatus for copy protection258US 6,523,113 B1Apple Computer, Inc. · 2003
- Optical disk, optical recorder, optical reproducer, crytocommunication system and program license system125US 6,081,785 AMatsushita Electric Industrial Co., Ltd. · 2000
- Copy protection for recorded media102US 5,923,754 ACompaq Computer Corporation · 1999
- Apparatus and method for preventing unauthorized use of information recorded on an information recording medium98US 6,289,102 B1Matsushita Electric Industrial Co., Ltd. · 2001