The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 01, 2014
Filed:
Sep. 18, 2008
Daniel Catrein, Herzogenrath, DE;
Frank Hartung, Herzogenrath, DE;
Johannes Willig, Herzogenrath, DE;
Daniel Catrein, Herzogenrath, DE;
Frank Hartung, Herzogenrath, DE;
Johannes Willig, Herzogenrath, DE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A technique for content management using group rights is described. The technique facilitates a flexible management for a group of content files mainly by effecting a change of group memberships for subsets of the group and a partial update of the content files. As one aspect, a content file manager () is provided to create content files associated with group rights. A device () is also provided to process such content files. One method aspect comprises assigning a plurality of content items to a new group whose identifier is associated with a new group rights object; determining if any of the content items has been previously distributed; and for each previously-distributed content item, creating an update content file including the group identifier of the new group and excluding the previously-distributed content item itself.