发明名称 A METHOD AND A DEVICE FOR PERFORMING STATE CONTROL RELATING TO ACCESS TO CONTENT PROTECTED BY DRM SYSTEMS
摘要 This invention relates to a method and a device for performing state control relating to access to content protected by a Digital Right Management system, wherein the protected content is accessible from different DRM systems which have access to a common state object. The common state object identifies the state relating to previous access to said protected content. When accessing the common state object, the state relating to previous access to the content is identified, and based thereon the access to the protected content is determined.
申请公布号 WO2006134515(A3) 申请公布日期 2007.03.08
申请号 WO2006IB51801 申请日期 2006.06.06
申请人 KONINKLIJKE PHILIPS ELECTRONICS N.V.;KAMPERMAN, FRANCISCUS, L., A., J.;LENOIR, PETRUS, J. 发明人 KAMPERMAN, FRANCISCUS, L., A., J.;LENOIR, PETRUS, J.
分类号 G06F21/10 主分类号 G06F21/10
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