摘要 |
<p>A method, system and device for transferring rights adapted to be associated with items from a rights supplier to a rights consumer, including obtaining a set of rights associated with an item, the set of rights including meta-rights specifying derivable rights that can be derived from the meta-; determining whether the rights consumer is entitled to the derivable rights specified by the meta-rights; and deriving at least one right from the derivable rights, if the rights consumer is entitled to the derivable rights specified by the meta-rights, wherein the derived right includes at least one state variable based on the set of rights and used for determining a state of the derived right.</p> |
申请人 |
CONTENTGUARD HOLDINGS, INC.;NGUYEN, MAI;WANG, XIN;TA, THANH;LAO, GUILLERMO;CHEN, EDDIE, J. |
发明人 |
NGUYEN, MAI;WANG, XIN;TA, THANH;LAO, GUILLERMO;CHEN, EDDIE, J. |