Digital interpolation circuitry
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United States of America Patent
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May 21, 1991
Grant Date -
N/A
app pub date -
Mar 13, 1990
filing date -
Mar 13, 1990
priority date (Note) -
Expired
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Abstract
A sampled data interpolator includes a linear interpolator coupled in parallel with a nonlinear compensation signal path. The nonlinearly processed signals and the linearly interpolated signals are summed to produce interpolated samples. The nonlinear compensation signal path includes a finite impulse response filter having tap weights conforming to a sinc function, and a weighting circuit for scaling filtered samples by a normalized sinc function.
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