Vehicle-in-blind-spot detecting apparatus and method thereof

A vehicle-in-blind-spot detecting apparatus mounted on a vehicle which detects another vehicle positioned in a blind spot, the vehicle-in-blind-spot detecting apparatus comprising:

• a presenting unit configured to present information;
• at least one microphone which detects a sound;
• a vehicle sound extracting unit configured to extract a vehicle sound of the other vehicle from the sound detected by the microphone;
• a sound source direction detecting unit configured to detect a sound source direction of the vehicle sound extracted by the vehicle sound extracting unit;
• and
• a vehicle-in-blind-spot determining unit configured to cause the presenting unit to present the information, the information indicating that a the other vehicle is found in a blind spot based on the sound source direction of the vehicle sound detected by the sound source direction detecting unit, which is a first direction representing a direction above the vehicle with the vehicle-in-blind-spot detecting apparatus with respect to ground level,
• wherein the first direction has an elevation angle with respect to the vehicle with the vehicle-in-blind-spot detecting apparatus that is greater than 0 degrees.