Sampled data subsampling apparatus
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United States of America Patent
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Apr 4, 1989
Grant Date -
N/A
app pub date -
Feb 16, 1988
filing date -
Feb 16, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An antialias filtering and subsampling system incorporates a compound accumulator including three cascade connected accumulator circuits conditioned to integrate and dump the integrated values of n input samples. The integrated values from the three integrators are scaled, delayed and combined to produce substampled values of a signal which has been filtered according to the transfer function [sin(n.pi.ft)/nsin(.pi.ft)].sup.3.
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