A vehicle (2) is prevented from being operated by a fraudulent action. A vehicle-mounted device (100) includes a control unit (110) that generates a request signal, a transmission unit (104) that sequentially transmits a request signal generated by the control unit (110) from a plurality of respective transmission antennas (102), (202), a reception unit (108) that receives a response signal to the request signal, and a storage unit (112) 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 (108), the control unit (110) determines whether or not a vehicle (2) 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 (112).
KEYLESS ENTRY SYSTEM AND VEHICLE-MOUNTED DEVICE
SCHLÜSSELLOSES ZUTRITTSSYSTEM UND FAHRZEUGMONTIERTE VORRICHTUNG
SYSTÈME D'ENTRÉE SANS CLÉ ET DISPOSITIF MONTÉ SUR VÉHICULE
2019-12-18
Patent
Electronic Resource
English
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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
|