Patent ID: 7468755

Claim:
A video signal receiving device comprising: an HDMI connector configured to be connected to a digital transmission bus that conforms to HDMI standard; an HDMI receiver configured to separate video components and audio components from digital signals received via the HDMI connector; signal processing units configured to execute a decoding process on video signals and audio signals separated by the HDMI receiver, respectively, to restore analog video signals and audio signals; a first detecting unit configured to detect a change in a receiving state based on the digital signals received via the HDMI connector and to output a first detection signal; a second detecting unit configured to detect whether the HDMI connector has been disconnected, based on a connection recognition signal received via the HDMI connector,, and to output a second detection signal; and a mute control unit configured to execute a mute process for the signal processing units not to output the audio signals, at occurrence of the first detection signal or the second detection signal.