Object detection device for an automotive vehicle
US8779782B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2008 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | Oct 18, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/960775
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A detection device for detecting an object by measuring the capacitance variation of the detection device includes at least a pair of sensor pads, each sensor pad being able to transmit or to receive an electric field. Each sensor pad can be used to measure the impedance variation of the pad, each sensor pad being driven by a driven rail impedance measuring system including an inverter, an oscillator, a power supply rail driver and switches, the measuring system being able to change the sensor pad function from electric field transmitter to electric field receiver or impedance measurer by turning on and off the oscillator to the input of the power supply rail driver of the inverter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.