DIGITAL RIGHTS MANAGEMENT (DRM) METHOD AND DEVICE FOR CONTENT COPYRIGHT PROTECTION

摘要

PPROBLEM TO BE SOLVED: To provide a Digital Rights Management (DRM) method and device for content copyright protection capable of protecting right information on DRM contents and efficiently managing the right information so as to protect content copyright. PSOLUTION: The DRM device for content copyright protection comprises a time security module for providing time change information along with arbitrary time change by a user, and a time security list management module for managing and providing the right information on content and the time change information. PCOPYRIGHT: (C)2005,JPO&NCIPI