Patent ID: 8245312
Filing Date: 2012-08-14
Classification: G06F,H04L,Y04S

Abstract:
1. A method of managing digital rights of a remote device, the method comprising: receiving a warrant including information indicating that use of a content is allowed, issued from a main device having a replay right for the content; transmitting the warrant to a service-providing device; determining that state information has been successfully updated by checking the response packet indicating that the state information has been updated; receiving the content from the service-providing device, if the state information has been updated properly, and receiving a list of contents that can be replayed using the warrant from the main device, wherein the content provided from the service-providing device is selected by the remote device from the list wherein the service providing device provides information of the content utilized by the remote device, to the main device, and requests the main device to update the state information based on the utilized content.