Electrical computers: arithmetic processing and calculating – Electrical digital calculating computer – Particular function performed
Patent
1998-02-27
2000-02-15
Malzahn, David H.
Electrical computers: arithmetic processing and calculating
Electrical digital calculating computer
Particular function performed
708322, G06F 1710
Patent
active
060264195
ABSTRACT:
A signal detector for detecting a narrow-band signal of a desired frequency, using an adaptive type FIR filter having two filter coefficients, is disclosed. Using this filter, the input signal of a shift register which delays the signal, is estimated by referring to the output therefrom. A narrow-band signal of a desired frequency is detected by comparing each filter coefficient of this filter with a known filter coefficient corresponding to the frequency which is the object of detection.
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Malzahn David H.
NEC Corporation
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