Patent ID: 8305494
Filing Date: 2012-11-06
Classification: H04N

Abstract:
1. A broadcast receiving device comprising: a first receiving unit configured to receive a first television broadcast; a second receiving unit configured to receive a second television broadcast; a display control unit configured to display a first image corresponding to the first television broadcast received by the first receiving unit on a main screen in a monitor, and display a second image corresponding to the second television broadcast received by the second receiving unit on a subscreen in the monitor; an audio output unit configured to selectively output one of a first audio corresponding to the first television broadcast received by the first receiving unit and a second audio corresponding to the second television broadcast received by the second receiving unit; a switching determination unit configured to compare the first audio with the second audio, and determine whether or not the second audio is to be outputted instead of the first audio; a switching execution unit configured to execute audio switching processing on the audio output unit based on a determination result of the switching determination unit so that the second audio is outputted instead of the first audio; and an amplitude calculation unit configured to subject the first and second audios to spectrum analysis for first and second predetermined time periods, respectively, and calculate a first amplitude value and a second amplitude value that are total values of amplitudes corresponding to a frequency within a specific range, the switching determination unit being further configured to determine whether or not the second audio is to be outputted instead of the first audio based on the first amplitude value and the second amplitude value.