G11B 20/00507
Wherein consecutive physical data units of the record carrier are encrypted with
Official title: {wherein consecutive physical data units of the record carrier are encrypted with separate encryption keys, e.g. the key changes on a cluster or sector basis}
G11B20/00507 (Wherein consecutive physical data units of the record carrier are encrypted with) appears on 156 US grants and 171 published applications in this corpus.
Search patents in G11B- Granted patents
- 156
- Published applications
- 171
- Assignees
- 57
- Inventors
- 293
- Latest grant
- 7 Nov 2017
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 2 |
| 2002 | 4 | 16 |
| 2003 | 4 | 27 |
| 2004 | 6 | 14 |
| 2005 | 7 | 25 |
| 2006 | 15 | 13 |
| 2007 | 13 | 22 |
| 2008 | 10 | 18 |
| 2009 | 17 | 14 |
| 2010 | 18 | 8 |
| 2011 | 17 | 3 |
| 2012 | 11 | 5 |
| 2013 | 3 | 2 |
| 2014 | 8 | 1 |
| 2015 | 6 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Information processing device, information processing method, and program7 Nov 2017US 9,811,670 B2Sony Corporation
- Data conversion method on storage medium, apparatus and program3 May 2016US 9,330,712 B2Humming Heads Inc.
- Method and apparatus for assisting with content key changes27 Oct 2015US 9,171,569 B2Google Technology Holdings LLC
- Media storage, media reader and method for reading contents of the media storage in the media reader17 Mar 2015US 8,983,077 B2STMicroelectronics S,r.l.
- Information processing device, data processing method, and program3 Mar 2015US 8,972,301 B2Sony Corporation
- Information processing device, information processing method, and program12 Feb 2015US 2015/0046719 A1Sony Corporation
- Method and Apparatus for Writing and Reading Hard Disk Data8 May 2014US 2014/0129848 A1
- Media storage, media reader and method for reading contents of the media storage in the media reader12 Sep 2013US 2013/0236020 A1STMicroelectronics S,r.l.
- Information processing apparatus, information recording medium, information processing method, and computer program14 Feb 2013US 2013/0039490 A1Sony Corporation
- Information processing system, information processing device, information processing method and program6 Dec 2012US 2012/0311318 A1Sony Corporation
Most cited
By later US patents
- Multi-media copy management system382US 5,963,909 ASolana Technology Development Corporation · 1999
- Multi-media copy management system333US 5,719,937 ASolana Technology Develpment Corporation · 1998
- Apparatus, method and computer program product for protecting copyright data within a computer system220US 6,236,727 B1International Business Machines Corporation · 2001
- Method for installing a mailbox file associated with a disk storage medium135US 7,543,117 B1Western Digital Ventures, Inc. · 2009
- Digital content protection system123US 6,859,535 B1Matsushita Electric Industrial Co., Ltd. · 2005