G11B 20/00478
Wherein contents are decrypted and re-encrypted with a different key when being
Official title: {wherein contents are decrypted and re-encrypted with a different key when being copied from/to a record carrier}
G11B20/00478 (Wherein contents are decrypted and re-encrypted with a different key when being) appears on 66 US grants and 69 published applications in this corpus.
Search patents in G11B- Granted patents
- 66
- Published applications
- 69
- Assignees
- 34
- Inventors
- 152
- Latest grant
- 7 Mar 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 5 |
| 2003 | 1 | 7 |
| 2004 | 2 | 12 |
| 2005 | 0 | 3 |
| 2006 | 8 | 8 |
| 2007 | 8 | 6 |
| 2008 | 7 | 5 |
| 2009 | 1 | 1 |
| 2010 | 4 | 3 |
| 2011 | 4 | 1 |
| 2012 | 4 | 8 |
| 2013 | 4 | 2 |
| 2014 | 5 | 2 |
| 2015 | 4 | 2 |
| 2016 | 1 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 1 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Establishing a secure communication session with an external security processor7 Mar 2023US 11,601,409 B2Comcast Cable Communications, LLC
- Electronic device capable of protecting confidential data15 Nov 2022US 11,502,832 B2PUFsecurity Corporation
- Physical digital media delivery17 Nov 2020US RE48,313 E1Cufer Asset Ltd. L.L.C.
- Key derivation for secure communications29 Jan 2019US 10,193,873 B2Comcast Cable Communications, LLC
- Video masking processing method and apparatus28 Aug 2018US 10,062,406 B2Korea Electronics Technology Institute
- Electronic device capable of protecting confidential data9 Dec 2021US 2021/0385072 A1PUFsecurity Corporation
- Key Derivation for Secure Communications22 Aug 2019US 2019/0260720 A1Comcast Cable Communications, LLC
- Video masking processing method and apparatus2 Jun 2016US 2016/0155465 A1Korea Electronics Technology Institute
- Storage device, storage system, and authentication method20 Aug 2015US 2015/0235020 A1Kabushiki Kaisha Toshiba
- Information processing device, information processing method, and program12 Feb 2015US 2015/0046719 A1Sony Corporation
Most cited
By later US patents
- Apparatus, method and computer program product for protecting copyright data within a computer system220US 6,236,727 B1International Business Machines Corporation · 2001
- Method and device for protecting digital data by double re-encryption162US 7,093,295 B12006
- Digital content distribution system and method144US 7,162,642 B2Digital Video Express, L.P. · 2007
- Controlled-access broadcast signal receiving system115US 5,796,828 ASony Corporation · 1998
- Data copyright management system61US 5,848,158 AMitsubishi Corporation · 1998