A vehicle-mounted device includes a control unit that generates a request signal, a transmission unit that sequentially transmits a request signal generated by the control unit from a plurality of respective transmission antennas, a reception unit that receives a response signal to the request signal, and a storage unit that stores a history of information included in a response signal received by the reception unit, and, in a case where the response signal is newly received by the reception unit, the control unit determines whether or not a vehicle is caused to perform a predetermined operation on the basis of the information included in the response signal and the history of the information included in the response signal stored in the storage unit.
KEYLESS ENTRY SYSTEM AND VEHICLE-MOUNTED DEVICE
2017-10-12
Patent
Electronic Resource
English
Keyless entry control system, keyless entry method and keyless entry device for vehicle
European Patent Office | 2023
|VEHICLE-MOUNTED INSTRUMENT, PORTABLE DEVICE, AND KEYLESS ENTRY SYSTEM
European Patent Office | 2018
|European Patent Office | 2016
|