Patent ID: 6603812
Filing Date: 2003-08-05
Classification: H03H

Abstract:
An apparatus for generating a plurality of coefficients h(n) for a r-th order finite impulse response digital filter, the digital filter having a z-domain transfer function comprising the product of a first polynomial, a second polynomial and r-1 third polynomials, the first polynomial comprising the z-transform of a predetermined discrete-time sequence g(n), the second polynomial and the r-1 third polynomials each comprising a z-domain transfer function of a discrete-time integrator, the apparatus comprising:input circuitry for generating a discrete-time sequence x(n), the sequence x(n) comprising the discrete-time integral of the sequence g(n); and a cascade of r-1 discrete-time integrators, the cascade comprising an input and an output, the input coupled to receive the sequence x(n), and the output providing the plurality of coefficients h(n).