Method for calculating the rate of frequency of random events

Details Method for calculating the rate of frequency of random events Method for calculating the rate of frequency of random events

1987-02-25

1989-06-06

Arnold, Bruce Y.

Boots, shoes, and leggings

364486, 324 78Q, 377 10, 377 49, G01R 2310, G01R 2315

Patent

active

048377058

ABSTRACT:
A method of determining the rate of change of frequency of a plurality of randomly occurring events begins by counting the number of random events which occur within a plurality of predetermined sampling intervals to obtain a plurality of count values, each corresponding to one of the sampling intervals. These count values are stored in a memory table and the count values which correspond to the most recent set of N of the sampling intervals is summed to obtain a first accumulated count. A second accumulated count is obtained by summing the count values which correspond to a second set of N of the sampling intervals, preceding the most recent set. The rate of change of event frequency is then calculated by dividing the logarithm of (S.sub.1 /S.sub.2) by the number N. The value of the number N is dynamically adjusted for subsequent calculations based on the incoming frequency of random events.

REFERENCES:
patent: 2754056 (1956-07-01), Friedman
patent: 2828468 (1958-03-01), Ball et al.
patent: 2951202 (1960-08-01), Gordon
patent: 3909599 (1975-09-01), Trott, Jr. et al.
patent: 4349878 (1982-09-01), Grimm
patent: 4420809 (1983-12-01), Pierce
patent: 4609990 (1986-09-01), Sember et al.
patent: 4723216 (1988-02-01), Premerlani

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