Secure device for sharing copy protection identification information, a rendering device for executing copy protected content based on the identification information, and corresponding methods
US7712144B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2005 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | Feb 10, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/00086
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a secure device for copy protection comprising an ID database (3) for storing identification numbers IDs for decrypting copy protected encrypted content, a transceiving means (5,2) for transmitting and/or receiving IDs to and/or from an external device via a short range transmission system and an ID handler (4) for controlling the transmission and reception of the IDs in accordance with predefined transmission and/or reception rights.The present invention further relates to a rendering device for executing copy protected content comprising a data source (18,19,20) for providing copy protected encrypted content, a receiving means (5,2) for receiving IDs for decrypting the encrypted content from a secure device (1) via a short range transmission system and a controller (11) for assigning to every copy protected encrypted content the respective ID for decrypting said content in order to execute the decrypted content.The present invention in addition relates to a method for copy protection and to a method for executing copy protected content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.