Patent ID: 7383562

Claim:
A subscriber receiver for selectively receiving broadcasting data transferred via a digital cable broadcasting network comprising: a restricted reception device including: a demultiplexer for receiving broadcasting data and an ECM (Entitlement Control Message) including a CW (Control Word) 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 (Entitlement Management Message) from the subscriber receiver, and processing the received 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.