Standard deviation determining apparatus

Registers – Transfer mechanism – Traveling pawl

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Details

235183, 235193, 131 22R, G06G 748

Patent

active

039521850

ABSTRACT:
Standard deviation determining apparatus includes an integrator for integrating changes exhibited by a random variable, a circuit for selecting integrator output signals and a further circuit for averaging signals selected by the selecting circuit. The apparatus provides for periodic resetting of the integrator, for selecting integrator output signals occurring during predetermined time periods and for maintaining the integrator output constant in amplitude during the selecting of signals therefrom.

REFERENCES:
patent: 2965300 (1960-12-01), Radley et al.
patent: 3146344 (1964-08-01), Palmer
patent: 3560801 (1971-02-01), McArthur
patent: 3763361 (1973-10-01), Smart
patent: 3808411 (1974-04-01), Hoffmann

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