Patent ID: 6904272

Claim:
A digital broadcast receiver for receiving broadcast waves comprising multiplexed broadcast signals of a plurality of channels including a main channel for broadcasting a main program and a subchannel for broadcasting an independent program of relatively short period of time, the receiver being adapted to select one of the channels selected by the user based on header data contained in the broadcast signal of each channel, the digital broadcast receiver being characterized in that the receiver comprises: demodulator means for demodulating received data of the selected channel and outputting the resulting data, a memory having a capacity to store received data as to the program transmitted on the subchannel in an amount of one program, memory writing control means for writing the received data as to the program transmitted on the subchannel to the memory while updating the received data at all times, and memory reading control means for reading the received data stored in the memory from the head of the program and feeding the read data to the demodulator means in response to a manipulation for changing over the main channel to the subchannel.