Sampling frequency converter
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United States of America Patent
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-
Sep 18, 1984
Grant Date -
N/A
app pub date -
Oct 13, 1981
filing date -
Oct 13, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sampling frequency converter for converting a first signal sampled at a first sampling frequency f1 into a second signal sampled at a second sampling frequency f2 comprising an interpolation device supplied with the first signal, for inserting L-1 zeros (L is an integer) for every sampling time, a filter circuit for attenuating a frequency component over a frequency f/2 (f is a frequency) within an output signal of said interpolation device, where the filter circuit has a series circuit consisting of a finite impulse response digital filter and an infinite impulse response digital filter, and the frequency f is equal to the first sampling frequency f1 when f1
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