Patent ID: 6092422
Filing Date: 2000-07-25
Classification: G01H

Abstract:
Mechanical signal processing system, comprising:a first micromechanical member (60.1) being sensitive to a first frequency (f.sub.1),a second micromechanical member (60.2) being sensitive to a second frequency (f.sub.2), anda third micromechanical member (62), provided with an oscillation detector (65), said first and second micromechanical members (60.1, 60.2) being couple via linear coupling means (64) arranged such that said linear coupling means (64) is stimulated so as to oscillate with a superposition of said frequencies (f.sub.1, f.sub.2) if said first micromechanical member (60.1) is acted upon by a force or acoustic signal of said first frequency (f.sub.1) and said second micromechanical member (60.2) is acted upon by a force or acoustic signal of said second frequency (f.sub.2), said third micromechanical member (62) being coupled via non-linear coupling means (66) to said linear coupling means (64) such that said third micromechanical member (62) is stimulated in a non-linear manner and oscillates if a particular oscillation component corresponding thereto is present in said superposition, said particular oscillation component being detectable by said oscillation detector (65).