Patent ID: 7643092

Claim:
A broadcast receiving system, formed of a main television unit provided with a receiving part for receiving broadcast wave, a signal processing part for generating at least a video signal based on the received broadcast wave, a display for displaying a video based on the video signal, and a section for generating at least a transmission radio wave of a video based on the received broadcast wave; a sub-television unit provided with a receiving part for receiving the transmission radio wave, a signal processing part for generating at least a video signal based on the received transmission radio wave, and a display for displaying a video based on the video signal; and a controller provided independently of the sub-television unit to control the main television unit without controlling the sub-television unit, wherein the sub-television unit is provided with a section for transmitting information indicating an TV on-state of the sub-television unit by wireless, on the other hand, the main television unit is provided with a section for receiving the information indicating the TV on-state of the sub-television unit by wireless, and the main television unit performs control based on first information from the controller and second information from the sub-television unit, and stops displaying the video on the display thereof, but continues a broadcast reception process, a transmission radio wave generation process, and a reception process of sub-television information when receiving the information indicating a TV off-state of the main television unit as the first information at the time of receiving the information indicating the TV on-state as the second information.