Patent ID: 7982672

Claim:
A reception device comprising: a receiver configured to receive a plurality of broadcast signals sent from a plurality of transmission towers, respectively; a direction detector configured to detect reception directions of the broadcast signals that are received by the receiver; a location information acquisition component configured to acquire location information indicating locations where the transmission towers are installed, respectively; a location calculator configured to select at least three of the transmission towers, estimate at least two estimated areas in which the reception device is located with each of the at least two of the estimated areas being estimated based on the reception directions of the broadcast signals of two of the at least three of the transmission towers and the location information of the two of the at least three of the transmission towers, and calculate a location of the reception device based on the at least two of the estimated areas; a memory configured to store a zone table indicative of positions of zones; and a zone determiner configured to determine a zone of the reception device based on the zone table and the location of the reception device that is calculated by the location calculator.