Patent ID: 7801228
Filing Date: 2010-09-21
Classification: G06G,H04L

Abstract:
1. An analog multiplier based I-Q channelizing filter, comprising: a bank of sample-and-hold (S/H) circuits, constructed and arranged to each receive an externally generated input signal, sample and hold N consecutive analog sample pairs, N>3, of the input signal, each sample pair being a sample of an in-phase baseband signal IS and a sample of a quadrature baseband signal QS, and concurrently output the N consecutive analog samples as N held analog sample pairs; a clock circuit generating a master clock ck and N phase-shifted divide-by-N clocks ck an analog-multiplier based Fourier Transform circuit, constructed and arranged to receive said N held analog samples and output a corresponding N analog transform signals representing an N-point discrete Fourier transform of said N held analog samples, wherein said Fourier Transform circuit includes a plurality of analog multipliers and analog summers.