发明名称 |
Restricted reception device for digital cable broadcasting system, and reception system and method using the same |
摘要 |
A restricted reception device enabling a subscriber receiver to selectively receive broadcasting data transferred via a digital cable broadcasting network, includes: a demultiplexer for receiving broadcasting data and an ECM including a CW from the subscriber receiver, and demultiplexing them, the broadcasting data and the ECM being transferred through an in-band channel; an out-of-band channel signal processor for receiving an EMM from the subscriber receiver, and processing the EMM, the EMM being transferred through an out-of-band channel; a restricted reception processor for descrambling the scrambled broadcasting data using the ECM and the EMM received from the out-of-band channel signal processor; and a remultiplexer for multiplexing the descrambled broadcasting data received from the restricted reception processor, and sending the multiplexed broadcasting data to the subscriber receiver.
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申请公布号 |
US2004123330(A1) |
申请公布日期 |
2004.06.24 |
申请号 |
US20030439818 |
申请日期 |
2003.05.16 |
申请人 |
CHO YONG-SEONG;JUNG JOON-YOUNG;KWON O-HYUNG;AHN CHIETEUK |
发明人 |
CHO YONG-SEONG;JUNG JOON-YOUNG;KWON O-HYUNG;AHN CHIETEUK |
分类号 |
H04N7/16;H04N7/167;H04N7/173;(IPC1-7):H04N7/16 |
主分类号 |
H04N7/16 |
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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