Patent ID: 8427588

Claim:
A television receiver comprising: a tuner unit which receives program data; and a monitor unit which displays images of the program, the tuner unit and the monitor unit being separated from each other, the tuner unit being configured to transmit the program data to the monitor unit via wireless transmission; wherein the tuner unit comprises: a recorder/player which records the received program to a recording medium and plays it back therefrom; a wireless transmitter which is configured to transmit data of the received program or the program played back by the recorder/player to the monitor unit via wireless transmission, using either one of a first channel sharing with a commercial radar wave or a second channel not sharing with the commercial radar wave; a wireless receiver which searches for an unused channel from the first channel and the second channel for wireless transmission of the program data and detects the arrival of the commercial radar wave; and a controller which controls the recorder/player and controls the wireless transmitter in order to transmit the program data using either one of the first channel or the second channel searched for as the unused channel by the wireless receiver; wherein when the wireless receiver detects the arrival of the commercial radar wave while the wireless transmitter performs the wireless transmission of the program data using the first channel, the controller controls the wireless transmitter to stop the wireless transmission of the program data and to resume the wireless transmission by changing the channel from the first channel to the second channel, and wherein, after the resumption of the wireless transmission, the controller controls the recorder/player in order to play back on a time-shift basis the program recorded on the recording medium from the position where the wireless transmission is stopped and controls the wireless transmitter in order to perform the wireless transmission of the program data which is played back using the changed second channel.