Method for calculating the rate of frequency of random events
US4837705A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 1987 |
| Grant date | Jun 6, 1989 |
| Priority date | — |
| Expiry date | Feb 25, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R23/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.