Linear ultrasound transducer array for an automotive occupancy sensor system
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United States of America Patent
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-
Aug 13, 2002
Grant Date -
Dec 6, 2001
app pub date -
Apr 15, 1999
filing date -
Apr 15, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An improved automotive occupancy sensor (AOS) system comprising a linear or spaced array of ultrasound (US) transducers mounted adjacent the headliner of a vehicle to direct an array of US beams to define a preselected occupancy zone adjacent a seat of the vehicle. The AOS electronics may be integrally packaged with the transducer array and flush mounted within the headliner. The array permits occupancy state to be determined by a AOS classification algorithm and method using only or US echo range data, thereby reducing the cost and complexity of the system, improving speed and simplifying calibration.
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