Patent ID: 6735699
Filing Date: 2004-05-11
Classification: G06F

Abstract:
A method of monitoring use of digital works, comprising the steps of:(a) registering a digital work in a rights registration database according to an identification code of the digital work; (b) receiving an application of permission for a use of the digital work, together with the identification code of the digital work used by a user and an identification code of a user device; (c) collating the identification code of the digital work and the identification code of the user device with said rights registration database on the basis of the application of the permission for using the digital work and, if the permission for using the digital work is granted, issuing a license including the identification code of the user device; and (d) embedding the license in the digital work by means of a digital watermark so that the user can use the digital work with the license in the user device.