MULTI-OUT BROADCASTING RECEIVER SYSTEM USING CAS OF SINGLE SET-TOP BOX

摘要

The present invention relates to a multi-out broadcasting receiver system using CAS of a single set-top box which enables, under connection between a set-top box and multiple of TV receivers each positioned in distant locations through a pre-installed network (RF line) in a house or other specific location, the coexistence of remocon IR data and TV RF A/V signal in the RF line by adopting filter technology and the descrambling of more than two channels respectively scrambled using a single certificate card, so that a user may indepently watch multiple TV's in each of distant locations using a single set-top box and may remotely control the set-top box from a distant location where the set-top box is not positioned using a remocon. According to the invention, the multi-out broadcasting receiver system using CAS of a single set-top box is advantageous in that a user may independently watch multiple TV's in distant locations using only signal set-top box, in that only one certificate card is required, and in that cable engineering in each of distant location or expensive RF (UHF) remocon transmitter/receiver is not required.