G11B 20/00333
The key being stored in header data
Official title: {the key being stored in header data, e.g. in sector headers}
G11B20/00333 (The key being stored in header data) appears on 55 US grants and 49 published applications in this corpus.
Search patents in G11B- Granted patents
- 55
- Published applications
- 49
- Assignees
- 19
- Inventors
- 121
- Latest grant
- 5 Jul 2016
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 1 |
| 2002 | 4 | 5 |
| 2003 | 2 | 12 |
| 2004 | 2 | 6 |
| 2005 | 3 | 8 |
| 2006 | 6 | 3 |
| 2007 | 5 | 4 |
| 2008 | 3 | 4 |
| 2009 | 7 | 1 |
| 2010 | 4 | 2 |
| 2011 | 4 | 0 |
| 2012 | 1 | 1 |
| 2013 | 2 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Efficient elimination of access to data on a writable storage media5 Jul 2016US 9,384,777 B2International Business Machines Corporation
- Content transmission device, content transmission method, and computer program used therewith9 Jun 2015US 9,055,353 B2Sony Corporation
- Use of indirect data keys for encrypted tape cartridges23 Jul 2013US 8,494,166 B2International Business Machines Corporation
- Content transmission device, content transmission method, and computer program used therewith29 Jan 2013US 8,363,258 B2Sony Corporation
- Content transmission device, content transmission method, and computer program used therewith17 Jan 2012US 8,098,388 B2Sony Corporation
- Content transmission device, content transmission method, and computer program used therewith4 Jun 2015US 2015/0154999 A1Sony Corporation
- Content transmission device, content transmission method, and computer program used therewith14 Mar 2013US 2013/0067223 A1Sony Corporation
- Content transmission device, content transmission method, and computer program used therewith19 Apr 2012US 2012/0096260 A1Sony Corporation
- Searching apparatus and searching method11 Feb 2010US 2010/0036841 A1Sony Corporation
- Block-based media content authentication4 Feb 2010US 2010/0031035 A1BroadOn Communications Corp.
Most cited
By later US patents
- Multi-media copy management system382US 5,963,909 ASolana Technology Development Corporation · 1999
- Copy security for portable music players345US 6,367,019 B1Liquid Audio, Inc. · 2002
- Multi-media copy management system333US 5,719,937 ASolana Technology Develpment Corporation · 1998
- Copy prevention method and apparatus of a digital magnetic recording/reproducing system165US 5,689,559 ALG Electronics Inc. · 1997
- Optical disk, optical disk recording and reproducing apparatus, method for recording, reproducing and deleting data on optical disk, and information processing system144US 6,938,162 B1Matsushita Electric Industrial Co., Ltd. · 2005