Patent ID: 8610782

Claim:
A broadcast receiving device comprising: a receiving component configured to receive broadcast waves and extract a video signal from the broadcast waves; a comparison component configured to calculate a value indicating quality of the video signal as a ratio of a number of synchronization signals detected with a first threshold to a number of synchronization signals included in the video signal, the comparison component being further configured to compare the value indicating quality of the video signal with first and second levels, the second level indicating a lower quality than the first level; and a drive signal generating component configured to generate a drive signal for displaying video on a display based on the video signal such that at least one of brightness and contrast of the video is reduced by a certain amount while the value indicating the quality of the video signal is within a first range that is lower than the first level and higher than the second level, the drive signal generating component being further configured to halt the generation of the drive signals based on the video signal while the value indicating the quality of the video signal is within a second range that is lower than the second level.