Patent ID: 7215786
Filing Date: 2007-05-08
Classification: G10L

Abstract:
1. A robot auditory apparatus for a robot having a noise generating source in its interior, characterized in that it comprises: a sound insulating cladding with which at least a portion of the robot is covered; at least two outer microphones disposed outside of said cladding for primarily collecting an external sound; at least one inner microphone disposed inside of said cladding for primarily collecting noises from said noise generating source in the robot interior; a processing section responsive to signals from said outer and inner microphones for canceling from respective sound signals from said outer microphones, noises signal from said interior noise generating source while detecting burst noises owing to said noise generating source from a signal from said at least one inner microphone for canceling signal portions from said sound signals for bands containing said burst noises; and a directional information extracting section responsive to a left and a right sound signals from said processing section for determining a direction from which said external sound is emitted.