Patent ID: 7984508

Claim:
A contents using device which uses a content with a license including a usage rule, said contents using device comprising: a license processing unit operable to judge, on the basis of the usage rule of the license, whether or not the content is available; a content using unit operable to use the content judged by said license processing unit to be available; a restriction unit operable to restrict a usage of the license corresponding to the content used by said content using unit; an event detection unit operable to detect a predetermined event that occurs between a start and a normal end of the content usage and that forcefully aborts the content usage; a restriction-relaxation necessity judgment unit operable to judge whether or not to relax a restriction on the license usage; a restriction relaxation unit operable to relax the restriction on the license usage when said restriction-relaxation necessity judgment unit judges that the restriction is to be relaxed; and a number-of-event-occurrences storage unit operable to store the number of occurrences of the predetermined event detected by said event detection unit, wherein said restriction-relaxation necessity judgment unit is operable to judge whether or not to relax the restriction, on the basis of the number of the event occurrences stored in said number-of-event-occurrences storage unit.