Electric filter with blocking behavior for a predetermined rejection frequency
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United States of America Patent
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Issued Date -
Jan 30, 2003
app pub date -
Jun 28, 2002
filing date -
Jun 28, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An electric low-pass filter with blocking behavior for a predetermined rejection frequency, comprising a series connection including a FIR filter and an IIR filter, with the parameters of the FIR filter being matched in essence with respect to the blocking behavior at the rejection frequency and the parameters of the IIR filter being matched in essence with respect to the low-pass behavior. It is possible with such a filter to obtain good low-pass behavior with very high attenuation of the frequency to be rejected, with relatively low circuit expenditure and high stability with respect to oscillation tendency.
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