METHOD FOR SHARING RIGHTS OBJECT IN DIGITAL RIGHTS MANAGEMENT AND DEVICE THEREOF

摘要

A Digital Rights Management (DRM), and particularly a method for sharing a Rights Object (RO) of a certain DRM content between devices, wherein a certain device requests a Rights Issuer (RI) to upgrade its existing RO, and moves or copies the upgraded RO by the request to at least one or more other devices via a wired/wireless medium, thereby sharing the RO with the other devices.