发明名称 DECOUPLING RIGHTS IN A DIGITAL CONTENT UNIT FROM DOWNLOAD
摘要 Systems and methods for enabling a user to obtain rights in a legitimate copy of a digital content unit without downloading the copy from a digital content store are provided. The systems and methods provide an encrypted copy of a digital content unit to a first user and transcript the encrypted copy to generate the legitimate copy to a second user. The encrypted copy is encrypted with a first encrypt key that may be associated with the first user and the legitimate copy is encrypted with a second encrypt key that may be associated with the second user.
申请公布号 EP2008474(A2) 申请公布日期 2008.12.31
申请号 EP20070811836 申请日期 2007.04.02
申请人 APPLE INC. 发明人 ZWEIG, JONATHAN M.;WOODYATT, JAMES H.
分类号 H04Q1/00 主分类号 H04Q1/00
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