Device for automatic detection of states of motion and rest, and portable electronic apparatus incorporating it
US7409291B2 · kind B2 · utility
10Cited by
9References
28Claims
0Family size
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Key dates
| Filing date | Feb 26, 2004 |
| Grant date | Aug 5, 2008 |
| Priority date | — |
| Expiry date | Mar 1, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for automatic detection of states of motion and rest includes at least one inertial sensor, having at least one preferential detection axis, and a converter, which is coupled to the inertial sensor and supplies a first signal correlated to forces acting on the first inertial sensor according to the preferential detection axis; the device further includes at least one processing stage for processing the first signal, which supplies a second signal correlated to a dynamic component of the first signal, and at least one threshold comparator, which supplies a pulse when the second signal exceeds a pre-determined threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.