Patent ID: 8194795

Claim:
A digital broadcast reception device comprising: a broadcast wave reception antenna for receiving a broadcast signal; a station selection demodulation unit for selecting and demodulating the broadcast signal received by the broadcast wave reception antenna as a plurality of demodulated signals, and distributing and outputting a signal for each hierarchy; a first decoder for decoding one signal of the plurality of demodulated signals output from the station selection demodulation unit; a second decoder for decoding another signal of the plurality of demodulated signals output from the station selection demodulation unit; an output switcher for switching and outputting the signals output from the first decoder and the second decoder; a position information detector for detecting position information and outputting a position information signal; a movement direction detector for detecting a movement direction of the digital broadcast reception device based on the position information signal output from the position information detector and outputting a movement direction information signal; a database holder for holding reception quality information in which the position information signal is related to reception quality at a corresponding position; and a switching point calculator for calculating a hierarchy switching point at which the hierarchy to be received is switched based on the position information signal output from the position information detector, the movement direction information signal output from the movement direction detector and the reception quality information stored in the database holder, and outputting a hierarchy switching request signal to the output switcher, wherein the switching point calculator controls the output switcher based on the reception quality information, the movement direction information signal and the position information signal, and calculates a movement speed of the digital broadcast reception device based on the position information signal, and allows the hierarchy switching point to be variable in accordance with the movement speed.