Method of processing electrical signals by means of Fourier transformations
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United States of America Patent
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Nov 18, 1986
Issued Date -
N/A
app pub date -
Mar 8, 1985
filing date -
May 9, 1981
priority date (Note) -
Expired
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Abstract
In order to upgrade input signals for further processing, one or more of the input signals is split up by a decimating technique into spectral component signals which are processed according to the desired purpose and recombined by means of an interpolation technique into an output signal. In this manner a digital filtering device can be selectively employed for achieving an arbitrary combination of simultaneous filtering, signal improvement, echo or feedback compensation, or signal masking of the input signals.
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