Method and device for detecting anomalous events for an...

Details Method and device for detecting anomalous events for an... Method and device for detecting anomalous events for an...

2011-07-12

2011-07-12

Teixeira Moffat, Jonathan C (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system

Accelerometer

C360S075000

Reexamination Certificate

active

07979235

ABSTRACT:
Detection of an anomalous event in an electronic apparatus includes detecting accelerations acting on the electronic apparatus, establishing a normal-mode range of accelerations that corresponds to normal operation of the apparatus, and detecting the anomalous event when a level of acceleration of the electronic apparatus exits the normal-mode range and remains outside the normal mode range for more than a defined duration. The method includes displacing the normal-mode range toward a current level of acceleration of the electronic apparatus while the level of acceleration remains outside the normal-mode range. Additionally, the normal-mode range is increased toward a maximum size while the level of acceleration remains outside the normal-mode range, and is decreased toward a minimum size while the level of acceleration is within the normal-mode range.

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Grieco et al., “A Low-g 3 Axis Accelerometer for Emerging Automotive Applications”, article, AMAA 2004 proceedings book, p. 211.

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