Patent ID: 8769300
Filing Date: 2014-07-01
Classification: G06F,G06Q

Abstract:
1. A method of creating content files for content items to be used by one or more content recipients, wherein the content files are to be grouped by means of a group identifier associated with a group rights object, the method performed by a computer processor of a content file manager and comprising: assigning, to a new group, a plurality of content items that are to be distributed to the one or more content recipients, wherein a group identifier of the new group is associated with a new group rights object; determining by the computer processor if any of the content items of the new group have been previously distributed to the one or more content recipients; for each previously-distributed content item, creating by the computer processor an update content file including the group identifier of the new group and excluding the previously-distributed content item itself; and outputting at least each update content file.