Integral navigation and audio/video system with function of preventing interruption of audio signal, and control method thereof

An integral navigation and A/V (audio/video) system with a function of preventing interruption of an audio signal, the system comprising:

• a navigation module having geographical information, and measuring a self position through a GPS (global positioning system), mapping the measured self position to the geographical information, setting a path to an inputted destination, mapping the set path to the geographical information, and outputting a position based guidance voice to perform road guidance along the path;
• an audio distributor for, under a predetermined control, receiving an audio signal and distributing the received audio signal as a first audio signal and a second audio signal and, upon receipt of the guidance voice, cutting off the second audio signal, and separating and outputting the guidance voice;
• a first audio processor for receiving and distributing the first audio signal to a corresponding channel, and outputting the distributed first audio signal through a speaker corresponding to the channel;
• a second audio processor for receiving and distributing the second audio signal or the guidance voice to a corresponding channel, and outputting the distributed second audio signal or guidance voice through a speaker corresponding to the channel;
• and
• a controller for controlling the audio distributor to distribute the audio signal and the guidance voice to the first and second audio processors.

A method for preventing interruption of an audio signal in an integral navigation and A/V (audio/video) system that is in course of outputting the audio signal and performs road guidance in a navigation mode, the method comprising the steps of:

• determining whether or not to receive a guidance voice depending on the road guidance;
• upon receipt of the guidance voice, distributing and outputting the audio signal and the guidance voice to channels;
• and
• upon completion of the outputting of the guidance voice, setting an audio signal-only mode, and allocating and outputting the audio signal to the channels.