TDR-based system and method for hand detection on a steering wheel with elimination of aging and environmental effects

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United States of America Patent

PATENT NO 12071170
APP PUB NO 20230347964A1
SERIAL NO

17914747

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Abstract

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A method of detecting a hand positioning on a steering wheel using a sensing system having an electrically conducting signal line on a rim of the steering wheel with a priori knowledge about a relation between a distance of any portion of the signal line from a reference point and information on a position on the rim, and which further includes an electric impedance change of predefined magnitude that is permanently arranged at a predefined position along the signal line, a signal voltage source, and a control and evaluation unit. From a received measurement signal traveling along the signal line and having been reflected by the electric impedance change and by another portion or portions of the signal line, a reference travel time is determined. A position or positions on the rim of the other portion or portions of the signal line can then be determined.

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Patent Owner(s)

Patent OwnerAddress
IEE INTERNATIONAL ELECTRONICS & ENGINEERING S AZONE INDUSTRIELLE ECHTERNACH L-6468

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anti, Baptiste Hettange-Grande, FR 8 14
Faber, Thomas Schweich, DE 24 191
Fox, Andreas Freudenburg, DE 4 1
Lamesch, Laurent Reichlange, LU 71 514
Puetz, Michael Trier, DE 18 152
Stifter, Thomas Trier, DE 13 160

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