TDMB SIGNAL ELECTRICAL TRANSMISSION MODULE FOR VEHICLES

摘要

A TDMB(Terrestrial Digital Multimedia Broadcasting) signal transmission module for a vehicle is provided to prevent degradation of sensitivity due to interference between an analog TV signal and a TDMB signal by being separately operated from an existing analog TV signal transmission module. An input unit(110) receives a broadcast signal received by a vehicle antenna. A filter unit(130) extracts a particular frequency band corresponding to a TV broadcast signal among broadcast signals inputted to the input unit(110). A matching unit(140) performs impedance matching on a frequency of the particular frequency band extracted by the filter unit(130). An amplifying unit(150) amplifies the matched frequency to optimize a TDMB signal included in the particular frequency band and apply it to an AV system. A power source unit(160) applies power to the amplifying unit(150), the filter unit(130) and the matching unit(140). A circuit protecting unit(120) protects a circuit having the power source unit(160), the filter unit(130), the matching unit(140) and the amplifying unit(150) against an electrical noise.