METHOD OF IMPARTING USAGE RIGHT TO DIGITAL CONTENTS, METHOD OF IMPLEMENTING USAGE RIGHT, AND ORIGINAL RECORDING MEDIUM FOR DIGITAL CONTENTS

摘要

PROBLEM TO BE SOLVED: To provide a method and system for digital copyrights management using an advanced copy with issue rights and managed copy tokens or the like.SOLUTION: A DRM agent which performs rights management operations on a digital content package determines whether to permit the rights management operations requested by right management instructions. Usage rights are associated with digital content packages, digital rights tokens are managed, digital content packages having predetermined broadcast dates are managed, usage rights are preserved when content is transferred between DRM environments, and content packages are distributed.