Method for activating a function of a vehicle by ultra high frequency with an item of portable user equipment and device for activating an associated function
US11760308B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2021 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Jun 14, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2209/63
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A UHF communication method for activating a motor vehicle function with a portable item of user equipment, based on the presence of the portable item of equipment in predetermined areas around the vehicle. The portable item transmitting a first signaling event at a predetermined period on at least one signaling channel. The first event including at least one signaling frame having a data block. The method including: a predetermined number of additional signaling events transmitted to the vehicle during the period; a request signal received from the vehicle, for each signaling frame of each event received by the vehicle; sending a response frame upon receipt of the request signal by the portable item; determining the presence of the portable item in one of the predetermined areas based on the strength values of the received signal; activating a vehicle function based on the determined presence of the portable item of equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.