디지털 케이블 방송 시스템의 제한 수신 장치, 이를 이용한 수신 시스템 및 수신 방법
조용성, 정준영, 안치득, 권오형
- 7383562 (2008.06.03)
- 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.
- KSP 제안 키워드
- Broadcasting system, Out-of-band channel, Signal processor, in-band, out-of-band