RELAY FOR RETRANSMITTING OF FM/DMB BROADCAST IN UNDERGROUND SPACE AND METHOD FOR TRANSMITTING
A repeater for retransmitting FM/DMB broadcasting in an underground space according to the present invention comprises: a power separation and signal removal module receiving an FM and DMB broadcasting signal from a public office facility in a building to separate AC power and the FM and DMB broadca...
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| Format: | Patent |
| Sprache: | eng ; kor |
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| Zusammenfassung: | A repeater for retransmitting FM/DMB broadcasting in an underground space according to the present invention comprises: a power separation and signal removal module receiving an FM and DMB broadcasting signal from a public office facility in a building to separate AC power and the FM and DMB broadcasting signal; a noise factor improvement module ameliorating a noise factor by separating the FM/DMB broadcasting signal from which the AC power is separated into an FM broadcasting signal and a DMB broadcasting signal; and a transmission signal size control module controlling the size of the FM/DMB broadcasting signal having the ameliorated noise factor so that the FM/DMB broadcasting signal corresponding to the size of an underground space can be transmitted.
본 발명에 따른 지하 공간 내 FM/DMB 방송의 재전송 중계기는 건물의 공청 시설로부터 FM·DMB 방송신호를 수신하여, AC 전원과 FM·DMB 방송신호를 분리하는 전원분리·신호제거 모듈; AC 전원이 분리된 FM·DMB 방송신호를 FM 방송신호와 DMB 방송신호로 각각 분리하여 잡음지수를 개선하는 잡음지수 개선모듈; 및 지하공간의 크기에 대응되게 FM·DMB 방송신호가 송출될 수 있도록 잡음지수가 개선된 FM·DMB 방송신호의 크기를 제어하는 송출신호 크기 제어모듈;를 포함하여, 설치 및 유지관리가 편해지며 안정적인 서비스를 제공할 수 있는 효과가 있다. |
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