Dynamic assignment of rights to content, such as in a closed distribution system. Noting state information generated by an item of current content, and modifying state or rights of new content in response. Preloading or dynamically sending new content to the owner of the current content, with rights...http://www.google.fr/patents/US7464058?utm_source=gb-gplus-shareBrevet US7464058 - System and method for generating new licenses
