发明名称 DIGITAL RIGHTS MANAGEMENT BASED ON DEVICE PROXIMITY
摘要 The present invention discloses a digital rights management (DRM) system and method based on device proximity for controlling what devices can utilize DRM protected content. DRM data and DRM protected content are copied from a first device to a second device 420 such that the DRM protected content on the first device becomes locked out 440 and the copied DRM protected content is not locked out on the second device 430. The first device periodically performs a proximity check 460 between the first and second devices such that if the first and second devices are determined to be within a short range of one another the DRM lockout of the first device is disabled 480.
申请公布号 WO2007061453(A2) 申请公布日期 2007.05.31
申请号 WO2006US26527 申请日期 2006.07.10
申请人 SONY ERICSSON MOBILE COMMUNICATIONS AB;CAMP, JR., WILLIAM O. 发明人 CAMP, JR., WILLIAM O.
分类号 G06F21/00 主分类号 G06F21/00
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