Patent ID: 7315589

Claim:
A beam selecting apparatus of a digital TV receiver, the digital TV receiver having a switched beamforming means and a channel equalizing means, the beam selecting apparatus comprising: a correlating means for calculating cross-correlation values with respect to previous known Field Sync signals and Field Sync signals of beams, the beams having energy larger than a predefined value among beams outputted from the switched beamforming means; a channel profile extracting means for extracting multi-path channel profiles of the beams by using the cross-correlation values; an effective signal path searching means for obtaining the number of effective signal paths having values larger than a predefined threshold based on the channel profiles; and a beam selecting means for selecting beams of a channel profile having the smallest number of the effective signal paths among the beams outputted from the switched beamforming means as an input beam of the channel equalizing means.