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:
Nov. 26, 2013
Filed:
Sep. 18, 2006
Wouter Baks, Eindhoven, NL;
Franciscus Lucas Antonius Johannes Kamperman, Eindhoven, NL;
Petrus Johannes Lenoir, Eindhoven, NL;
Lukasz Szostek, Eindhoven, NL;
Wouter Baks, Eindhoven, NL;
Franciscus Lucas Antonius Johannes Kamperman, Eindhoven, NL;
Petrus Johannes Lenoir, Eindhoven, NL;
Lukasz Szostek, Eindhoven, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
A method of and system for digital rights management, in which access to a piece of content is granted in accordance with a license owned by a license owner to a client who is a member of a domain. This requires successfully verifying that a membership relation exists between the client and the domain as reflected in a first state variable, and that an association relation exists between the license owner and the domain as reflected in a second state variable. Both relationships are revoked by executing an online protocol between the parties in the relationship after which both remove the corresponding state variable. The domain controller propagates the state administration relating to the domain is propagated to the client so that the client can update its state administration.