Recursive digital filter

Details Recursive digital filter Recursive digital filter

1974-06-28

1976-12-14

Dildine, Jr., R. Stephen

Registers

Transfer mechanism

Traveling pawl

235156, G06F 1520

Patent

active

039977706

ABSTRACT:
Recursive digital filter comprising at least two digital delay devices, a multiplying device having two inputs which are coupled to one another in a common branch point, a summing device from which a sum signal is derived the magnitude of which is at least equal to the sum of the output signal of the multiplying device, and a feedback circuit connected between the output of the summing device and the distribution point. The feedback circuit is provided with a discarding device which acts on numbers given in sign-and-magnitude representation and which by means of magnitude truncation restricts the number of bits of the numbers applied to the branch point.

REFERENCES:
patent: 3506813 (1970-04-01), Trimble
patent: 3619586 (1971-11-01), Hoff et al.
patent: 3749895 (1973-07-01), Kao
patent: 3780279 (1973-12-01), Stover
Parker, S. R. et al., Limit-Cycle Oscillations in Digital Filters", In IEEE Trans. Circuit Theory CT-18(6) pp. 687-697, Nov. 1971.

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