Patent ID: 6744835
Filing Date: 2004-06-01
Classification: H03H,H03M,H04L

Abstract:
A method of generating a control signal for use in adjusting a slicer clock in an analog-to-digital converter, comprising the steps of:determining a first series of coefficients aj for j=1 through M corresponding to M filter taps in an early interpolation filter; determining a second series of coefficients bj for j=1 through M corresponding to M filter taps in a late interpolation filter; successively sampling an analog data signal within sequential time windows; generating successive digital data values x(n) representative of the sampled data; applying the successive digital data values to an interpolation filter having M taps wherein each tap has an associated hybrid coefficient expressed as (ajâˆ’bj); computing, using said interpolation filter, an output signal which is a function of: i) said hybrid coefficients (ajâˆ’bj); and ii) said successive digital values; and generating said control signal as a function of said output signal.