| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a system for copy protection and for executing copy-protected content that avoids large-scale copyright infringements while not imposing an excessive restriction on a consumer and allowing the consumer freely to make some private copies. <P>SOLUTION: A secure device for copy protection comprises an ID database 3 for storing identification information for decrypting copy-protected encrypted content, a transmitting/receiving means 5, 2 for transmitting and/or receiving identification information 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 identification information in accordance with predefined transmission and/or reception rights. A rendering device for executing copy-protected content comprises a data source 18, 19, 20 for providing copy-protected encrypted content, a receiving means 5, 2 for receiving identification information for decrypting the encrypted content from the secure device 1 via the short range transmission system, and a controller 11 for assigning to every copy-protected encrypted content the respective identification information for decrypting the encrypted content in order to execute the decrypted content. In addition, a method for copy protection and a method for executing copy-protected content are provided. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
