发明名称 METHOD AND SYSTEM FOR PROVIDING CONDITIONAL ACCESS AUTHORIZATIONS TO A MOBILE RECEIVING DEVICE
摘要 A system and method for providing conditional access authorizations in a satellite- receiving system includes generating a conditional access signal at a head-end 20, receiving the conditional access signal at a fixed satellite receiver 54. The conditional access signal is communicated from the fixed satellite receiver 54 to a mobile satellite receiver 28. Conditional access is stored in the mobile satellite receiver 28 and enables the use of the signals by the mobile satellite receiver in response to the conditional access signal.
申请公布号 WO2008057532(A3) 申请公布日期 2008.07.03
申请号 WO2007US23361 申请日期 2007.11.06
申请人 THE DIRECTV GROUP, INC.;NORIN, JOHN;CASAVANT, SCOTT;GUZMAN, JORGE;LEE, SEAN, S.;JUPIN, BRIAN 发明人 NORIN, JOHN;CASAVANT, SCOTT;GUZMAN, JORGE;LEE, SEAN, S.;JUPIN, BRIAN
分类号 H04N7/16 主分类号 H04N7/16
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