| 发明名称 |
Broadcast and reception system, and conditional access system |
| 摘要 |
A conditional access system for a satellite television system includes an entitlement message generator 3004, 3002 and a message receiver 2020 to provide access to the programs output from the television transmitter. A communications server 3022 is connected directly to the entitlement message generator, the communication of the messages between the generator and the receivers being performed via the communications server. The entitlement messages are generated in response to a request for entitlement communicated to the generator from the receiver via the communications server on the modem back channel 4002. |
| 申请公布号 |
NZ500198(A) |
申请公布日期 |
2001.11.30 |
| 申请号 |
NZ19970500198 |
申请日期 |
1997.04.25 |
| 申请人 |
CANAL+ SOCIETE ANONYME |
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 |
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