Device and method for managing content usage right

摘要

A license information table 421a in a license DB 42a of a license management center terminal device 4a memorizes license information that includes an expiration date and identifies details of a license per content of each user. A license information examination unit 47 calculates remaining time up to the expiration date per license information of each user based on the expiration date and the date and hour at that moment. A notice information preparation unit 46a generates notice information indicating that the expiration date is close at hand when the remaining time calculated by the license information examination unit 47 becomes a predetermined threshold value or less.