Patent ID: 6285307
Filing Date: 2001-09-04
Classification: H03M

Abstract:
A method of sampling an analog signal, comprising the steps of:a) obtaining In-phase I and Quadrature-phase Q components of said analog signal,b) obtaining first sequences of discrete sample values of said I and Q components and second sequences of discrete sample values of said I and Q components, said first and second sequences being obtained with equal sampling rate and a mutual phase shift of 90.degree. relative to their sampling rate period;c) summing sample values of said I component of said first sequence and sample values of said Q component of said second sequence, forming a third sequence of sample values;d) effectively subtracting sample values of said I component of said second sequence from sample values of said Q component of said first sequence, forming a fourth sequence of sample values, ande) repeating steps c) and d) for each sampling rate period.