Patent ID: 6317065
Filing Date: 2001-11-13
Classification: H03M

Abstract:
A system for converting an analog signal to digital samples, said system comprising:a first A to D converter receiving said analog signal and converting said analog signal to a first series of digital samples;a second A to D converter receiving said analog signal and converting said analog signal to a second series of digital samples wherein said analog signal as received by said first A to D converter is attenuated compared to said analog signal as received by said second A to D converter;a selector that selects from said first series of digital samples and said second series of digital samples an output series of digital samples so as to maintain said output series of digital samples within a desired magnitude range of a currently selected converter;an FFT block that converts successive bursts of said output series of digital samples to a frequency domain representation; anda power measurement system that measures average power of successive bursts within said first series of digital samples and said second series of digital samples and provides average power measurements to said selector.