Patent ID: 8583442

Claim:
A method for mimicking the auditory system's response to rhythm of an input signal having a time varying structure comprising the steps of: providing a network of m nonlinear oscillators, each oscillator of the m nonlinear oscillators having a different natural frequency of oscillation and obeying a dynamical equation of the form: r . = r ⁡ ( α + β 1 ⁢  z  2 + ε ⁢ β 2 ⁢  z  4 1 - ε ⁢  z  2 ) + c ⁢ ⁢ x ⁡ ( t ) ⁢ cos ⁢ ⁢ ϕ - r ⁢ ε ε ⁢ ⁢ r 2 - 2 ⁢ ε ⁢ r ⁢ ⁢ cos ⁢ ⁢ ϕ + 1 ϕ . = ω + δ 1 ⁢ r 2 + ε ⁢ δ 2 ⁢ r 4 1 - ε ⁢ ⁢ r 2 - c ⁢ ⁢ x ⁡ ( t ) ⁢ sin ⁡ ( ϕ ) ε ⁢ ⁢ r 2 - 2 ⁢ ε ⁢ r ⁢ ⁢ cos ⁡ ( ϕ ) + 1 ⁢ ⁢ ω . = - k ⁢ ⁢ x ⁡ ( t ) ⁢ sin ⁢ ⁢ ϕ ε ⁢ ⁢ r 2 - 2 ⁢ ε ⁢ r ⁢ ⁢ cos ⁢ ⁢ ϕ + 1 wherein ω represents the response frequency, r is the amplitude of the oscillator and φ is the phase of the oscillator; inputting a time varying input signal x(t) to the network of m nonlinear oscillators; and generating at least one frequency output from said network useful for describing said varying structure.