Invention Grant
US08743670B2 Data medium of the compact disc type, in particular fitted with protection against copying, and corresponding method 有权
光盘类型的数据介质,特别适合防复制,以及相应的方法

Data medium of the compact disc type, in particular fitted with protection against copying, and corresponding method
Abstract:
A data medium of the compact disc type may include medium areas of different types configured to define digital content, and a controllable element having two different states corresponding respectively to the two different types of areas. The controllable element may be configured to take selectively one of its states in response to a command, so as to modify in a controllable manner the content of the data medium.
Information query
Patent Agency Ranking
0/0