发明名称 Metod och system för villkorad access
摘要 The present invention relates to a method and a system for granting access to a system ( 1 ), in which different services are distributed over a distribution network ( 4 ). A user terminal ( 3 ) is used for decoding these services and access is granted for said user terminal ( 3 ) by means of a virtual card. The virtual card is downloaded over the distribution network ( 4 ) by means of an extra data stream ( 18 ) from a system unit 17 and is received by said user terminal ( 3 ).
申请公布号 SE520674(C2) 申请公布日期 2003.08.12
申请号 SE20010004229 申请日期 2001.12.14
申请人 TELEVISION AND WIRELESS APPLICATIONS EUROPE AB 发明人 RAGNAR KAAHRE
分类号 G06F21/00;H04L9/32;H04N1/00;H04N7/16;(IPC1-7):H04N7/167 主分类号 G06F21/00
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