发明名称 A SYSTEM AND METHOD FOR SECURE AND CONVENIENT MANAGEMENT OF DIGITAL ELECTRONIC CONTENT
摘要 <p>A domain-based digital rights management (DRM) method and system. A domain has one or more communication devices, such as user devices that share a common cryptographic key of the domain. There may be a plurality of domains in a digital rights management environment and the domains may additionally be overlapping. A domain authority, in combination with a digital rights management module of a communication device, operates to selectively register and unregister the communication device to the one or more domains and to control access to encrypted digital content information.</p>
申请公布号 EP1390851(A1) 申请公布日期 2004.02.25
申请号 EP20020723394 申请日期 2002.03.12
申请人 MOTOROLA INC., A CORPORATION OF THE STATE OF DELAWARE 发明人 MESSERGES, THOMAS S.;DABBISH, EZZAT A.;PUHL, LARRY;VOGLER, DEAN
分类号 G06F21/10;G06F21/24;G06F1/00;G06F11/30;G06F21/00;H04L9/08;H04L29/06;H04N21/254;H04N21/258;H04N21/426;H04N21/4627;H04N21/6334;H04N21/6377;H04N21/835;H04N21/8355 主分类号 G06F21/10
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