Patent ID: 7447308
Filing Date: 2008-11-04
Classification: H04M,H04R

Abstract:
1. A low-noise transmitting receiving earset comprising: a housing, said housing having a front side, a rear side, a grille covered on said front side, said grille having a hub at the center thereof and a plurality of through holes spaced around said hub, said hub defining therein a receiving space and an axial center through hole in communication with said receiving space; a speaker mounted in said housing behind said grille and facing the back side of said housing; a first microphone mounted inside said receiving space of said hub of said grille in front of said speaker and facing the front side of said housing and aimed at the axial center through hole of said hub for picking up resonant sound waves from the external auditory canal of the user's ear; and a second microphone mounted inside said housing remote from said speaker for picking up voices from the user's mouth.