发明名称 SYSTEM FOR PROVIDING ALTERNATIVE SERVICES
摘要 The present invention provides a system for providing alternative services in a television system. In one implementation, a subscriber is provided an alternative service upon attempting to access an unauthorized service, thereby providing a framework for efficient control of conditional access and enhanced services. In addition, in one implementation, user device limitations or variations are handled conveniently through the same multi-purpose system for providing alternative services.
申请公布号 WO0176245(A3) 申请公布日期 2002.03.21
申请号 WO2001US10874 申请日期 2001.04.02
申请人 SCIENTIFIC-ATLANTA, INC. 发明人 JERDING, DEAN, F.;RODRIGUEZ, ARTURO, A.
分类号 H04N7/16;(IPC1-7):H04N7/16 主分类号 H04N7/16
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