CONTENT USAGE MANAGEMENT SYSTEM AND CONTENT USAGE MANAGEMENT METHOD

摘要

5 A content usage management system 1 that comprises a user terminal 200a using a content as a digital production and a server 100 managing usage of the content in the user terminal 200a over a communication network 300; wherein the sever 10010 includes a user right information DB 120 that memorizes right information regarding a usage right of the content entitled to a user who uses the terminal 200a and a content information generation unit 170 that generates LT which is right information indicating a part of usage right entitled to the user based upon a15 request from the user and that sends the LT to the sever terminal 200a; and the user terminal 200a includes a communication unit that receives the LT sent from the server 100 and a license information processing unit 260 that controls usage of the content according to the usage right indicated on the received LT.20 Figure 4