Method for locating, via ultra high frequency, a mobile device for “hands-free” access to an automotive vehicle and associated locating device
US10104510B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 25, 2016 |
| Grant date | Oct 16, 2018 |
| Priority date | — |
| Expiry date | Aug 25, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R25/245
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for locating, via ultra high frequency, a mobile device (T) for “hands-free” access to a vehicle (V), via a locating device (D′) on board the vehicle (V), the locating device (D′) including an ultra high frequency transceiver (10′), an electrical power supply source (Vcc) and an antenna (A′), the locating method being noteworthy in that the transceiver (10′) is disconnected from the antenna (A′), and that the transceiver (10′) is connected to an attenuation module (M1, M2, M3) located at a predetermined distance (L1, L2, L3) from the transceiver (10′) and including an impedance (Z1, Z2, Z3) of predetermined value connected to ground, the predetermined distance (L1, L2, L3) between the transceiver (10′) and the attenuation module (M1, M2, M3) and the predetermined value of the impedance (Z1, Z2, Z3) defining an area (A1, A2, A3) for locating the mobile device (T) around the vehicle (V).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.