| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a portable information storage medium, an additional use value imparting system, a program of the portable information storage medium, and an additional use value imparting method that can improve user's convenience and power to appeal. <P>SOLUTION: A content protection system is realized by a content receiving terminal 10 equipped with a storage section 12 which stores contents and attribute information the remaining readable frequency of the contents and a readable period of the contents and an input/output management section 135 which decides whether conditions of the attribute information stored in the storage section 12 are met in response to an instruction to read the contents out of the storage section 12 from an application program and reads the contents out when affirmative result is obtained. <P>COPYRIGHT: (C)2007,JPO&INPIT |
