发明名称 |
SIMULTANEOUS DIGITAL TELEVISION STREAMS WITH CONDITIONAL ACCESS |
摘要 |
System and method for compressing and interleaving I scrambled digital signal streams (I 2) into a master stream and de-interleaving the master stream to provide one or more output signals streams that provide composite video and audio images as part of a program to be transported across an isochronous bus for processing by a security module and by a signal demixer. The program is returned, optionally using the same isochronous bus, to a standard digital television processing module that includes demultiplexing, decoding, storing and/or networking operations. Selective descrambling of the master stream packets is based on a signal user's access rights. Packets from two or more signal streams may be combined and/or interleaved in any ratio. |
申请公布号 |
EP1393563(A1) |
申请公布日期 |
2004.03.03 |
申请号 |
EP20020754565 |
申请日期 |
2002.05.14 |
申请人 |
SCM MICROSYSTEMS GMBH |
发明人 |
VANTALON, LUC;GAUTIER, GILLES;BOURSIER, ARNAUD |
分类号 |
H04N21/418;H04N5/00;H04N7/167;(IPC1-7):H04N7/167;H04N7/16 |
主分类号 |
H04N21/418 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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