发明名称 |
BROADCAST AND RECEPTION SYSTEM, AND CONDITIONAL ACCESS SYSTEM THEREFOR |
摘要 |
A digital satellite television system has a plurality of set-top-boxes associated with a plurality of end users' television receivers, a modem and a decoder housed in each STB, a Subscriber Authorization System (SAS) incorporating or having associated therewith a plurality of communication servers, means included in the SAS for generating Electronic Managements Messages (EMM), a back channel interconnecting each of the STBs individually with the SAS, means included in the SAS and each STB so that the necessary information required to inject a relevant EMM into the system is supplied directly to the relevant communication server included in or associated with the SAS to authorise the release of the said EMM and/or means to connect the modem to the back channel and means whereby an EMM is transmissible to the decoder directly from a relevant communication server included in or associated with the SAS. Further important features are also disclosed. |
申请公布号 |
WO9843426(A1) |
申请公布日期 |
1998.10.01 |
申请号 |
WO1997EP02108 |
申请日期 |
1997.04.25 |
申请人 |
CANAL+ SOCIETE ANONYME;BAYASSI, MULHAM;DE LA TULLAYE, PIERRE;JEZEQUEL, JEAN-FRANCOIS |
发明人 |
BAYASSI, MULHAM;DE LA TULLAYE, PIERRE;JEZEQUEL, JEAN-FRANCOIS |
分类号 |
G06F9/445;G06F9/06;G06F9/46;G06F9/48;G06F11/00;G06F11/08;G06F11/10;G06F11/14;G06F11/26;G06F11/28;G06F12/00;G06F12/02;G06F13/00;G06F13/10;G06F15/16;G06F21/24;G06K17/00;G06K19/00;G06K19/07;G06Q20/00;G06T9/00;G07F7/00;G07F7/10;G09C1/00;G11C8/06;G11C16/02;G11C16/10;H04B1/713;H04H20/02;H04H40/00;H04L1/00;H04L9/10;H04L9/32;H04L12/16;H04L12/56;H04L13/08;H04L29/06;H04L29/10;H04N;H04N5/00;H04N5/222;H04N5/44;H04N5/455;H04N7/14;H04N7/16;H04N7/167;H04N7/173;H04N7/26;H04N7/52;H04N7/66;H04N17/00;H04N17/04;H04N21/2347;H04N21/235;H04N21/236;H04N21/254;H04N21/2543;H04N21/258;H04N21/266;H04N21/426;H04N21/434;H04N21/435;H04N21/4367;H04N21/4405;H04N21/442;H04N21/443;H04N21/462;H04N21/4623;H04N21/472;H04N21/478;H04N21/4782;H04N21/61;H04N21/6332;H04N21/6334;H04N21/6377;H04N21/658;H04N21/81;H04Q11/00 |
主分类号 |
G06F9/445 |
代理机构 |
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