Fir filter based upon squaring

Details Fir filter based upon squaring Fir filter based upon squaring

1992-08-13

1996-10-01

Envall, Jr., Roy N.

Boots, shoes, and leggings

36472416, G06F 1710

Patent

active

055616160

ABSTRACT:
A FIR filter based upon squaring accumulates the sum of the squares of the samples of a digital input signal. The samples also are added to respective filter coefficients, squared and accumulated in a plurality of filter stages. The sum of the squares of the samples are subtracted, together with a constant that is the sum of the squares of the filter coefficients, from the output of the last filter stage to produce an output signal that is divided by two to produce the samples for a digital output signal.

REFERENCES:
patent: 4817025 (1989-03-01), Asai et al.
patent: 5031133 (1991-07-01), Sasaki
patent: 5204827 (1993-04-01), Fujita et al.

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