Anomaly detection in a signal
US9471544B1 · kind B1 · utility
5Cited by
15References
18Claims
0Family size
Assignee
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Key dates
| Filing date | May 24, 2012 |
| Grant date | Oct 18, 2016 |
| Priority date | — |
| Expiry date | Jan 25, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2218/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods are disclosed herein for detecting an anomaly in a discrete signal, where a long-term trend of the discrete signal is identified. Samples in the signal correspond to a number of data packets arriving at a location in a network within a time interval. The long-term trend is subtracted from the discrete signal to obtain a detrended signal. A cyclic pattern is identified in the detrended signal and is subtracted from the detrended signal to obtain a residual signal. Anomaly detection is performed on the residual signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.