Apparatus and method for detecting motion with low power consumption in inertia sensor
US7652609B2 · kind B2 · utility
5Cited by
3References
31Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 12, 2006 |
| Grant date | Jan 26, 2010 |
| Priority date | — |
| Expiry date | Feb 23, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P15/18
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A motion detector and method with low power consumption in an inertia sensor. The motion detector is selectively supplied with power for operation of the inertia sensor according to a power control signal. While the inertia sensor is supplied with power, three-dimensional analog signals are sampled, A/D converted, and outputted via a controller. A pulse width of the power control signal is determined by reflecting the sampling and A/D conversion period and reflecting the operation preparing period of the inertia sensor from the A/D converted value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.