Recursive digital filter having means to prevent overflow oscill

Details Recursive digital filter having means to prevent overflow oscill Recursive digital filter having means to prevent overflow oscill

1978-05-24

1980-09-16

Malzahn, David H.

Boots, shoes, and leggings

364745, G06F 1534, G06F 738

Patent

active

042233895

ABSTRACT:
This invention has been made in order to prevent the malfunction due to an overflow, of a combinatorial type recursive digital filter whose feedback side is of the second or higher order. Means for detecting the overflow of the output of an arithmetic unit which executes an addition within the filter is additionally provided, and when the overflow has developed, the contents of shift registers for delay on, at least, the feedback side are reset by an output from the detecting means.

REFERENCES:
patent: 3676654 (1972-07-01), Melvin
patent: 3725687 (1973-04-01), Heightley
patent: 3749895 (1973-07-01), Kao
patent: 3777130 (1973-12-01), Croisier et al.
patent: 4034196 (1977-07-01), Butterweck et al.

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