Patent ID: 7535291

Claim:
A demodulator for an amplitude modulation receiver, which comprises: an input filter for filtering an input signal; a decimator and integrator demodulator for demodulating the filtered input signal; and an output filter for filtering the demodulated signal, wherein: the filtered input signal s(t) is segmented by a windowing function g(t−mT c ), where T c is a cycle time period; the segments of the filtered input signal s(t) are multiplied by the carrier frequency w k , which produces demodulated segments d(t); the demodulated segments d(t) are segmented by a windowing function g(t−lT c ), the segmented demodulated signals d(t) are integrated over the cycle period T c , every period; and the integrated demodulated segments are summed and filtered by the output filter, which produces the modulation function φ k [nT c ].