Noise reduction for occupant detection system and method
US8219286B2 · kind B2 · utility
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Key dates
| Filing date | Apr 28, 2010 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Jan 14, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2220/20
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An occupant detection system with noise reduction, a controller having noise reduction for an occupant detection system and a method for reducing noise in an occupant detection system. A high order digital filter is used to filter harmonics of a noise signal from an electrode signal used to determine an occupant presence or absence of the occupant. A way of sampling the electrode signal and the implementation of the high order digital filter cooperate such that the signal processing can be performed by a lower cost general purpose microprocessor as opposed to using a higher cost digital signal processor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.