Presence detection method and device with multiple detection areas for a motor vehicle
US11333784B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 18, 2019 |
| Grant date | May 17, 2022 |
| Priority date | — |
| Expiry date | Jan 18, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/960745
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A presence detection device including a sensor connected to a microcontroller, the sensor including a first detection capacitor arranged in a first detection area, and a second detection capacitor arranged in a second detection area. The microcontroller is configured to recurrently repeat a phase of measuring a measurement signal by charging/discharging the first detection capacitor from/into the second detection capacitor, and to detect a presence of a user in the first detection area and/or the second detection area according to the measurement signal. Also disclosed are a motor vehicle including a detection device and a detection method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.