System for detecting approach and/or contact of a user and ultra high frequency communication with a portable user apparatus
US11414901B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 5, 2019 |
| Grant date | Aug 16, 2022 |
| Priority date | — |
| Expiry date | May 5, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/96078
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Disclosed is a system for detecting approach and/or contact of a user and Ultra High Frequency communication with a portable user apparatus, intended to be embedded on board an automotive vehicle, the system including: a device for detecting approach and/or contact, including a sensor for detecting approach and/or contact and an electronic control unit; a conducting metal surface, suitable for the conduction of electric charges; and a communication device, including an Ultra High Frequency antenna emitting an electromagnetic field at an Ultra High Frequency wavelength, and a management unit for managing the emission and reception of data of the antenna. The conducting metal surface takes the form of a continuous path including a plurality of meanders spread over a length at least equal to: L=λ/6 wherein L is a total length of the meanders, and λ is a wavelength of the Ultra High Frequency antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.