Patent ID: 6930625

Claim:
A method for digitizing an analog input signal comprising: sampling the analog signal to produce a first sequence of analog samples representing successive magnitudes of the analog signal, de-interleaving the first sequence into a set of j second sequences, where j is an integer greater than 1, processing the set of j second sequences to produce a set of j third sequences of digital data elements, interleaving digital data elements of the set of j third sequences to generate a fourth sequence of digital data elements, and digitally filtering and decimating the fourth sequence to produce a fifth sequence of digital data elements representing successive magnitudes of the analog input signal wherein the step of processing the set of j second sequences to produce the set of j third sequences of digital data elements comprises the steps of: processing an element of at least one of the j second sequences to produce a plurality of alternative element values, selecting one alternative element value from among the alternative element values in response to a value of a last produced digital data element of one of the third sequences, producing a next digital data element of another of the third sequences as a function of the selected one alternative element value.