A vehicle system includes a vehicle-mounted device mounted to a vehicle and a portable device portable by a user, and performs a control to the vehicle corresponding to a collation result performed based on a wireless communication established between the vehicle-mounted device and the portable device. The vehicle-mounted device includes a vehicle-mounted transmission unit which simultaneously transmits radio waves having a predetermined phase difference using at least two transmission antennas disposed orthogonal to each other. The portable device includes a triaxial reception antenna receiving the at least two radio waves, and a magnetic field strength detection unit detecting a magnetic field strength on each of three axes of the triaxial reception antenna. One of the vehicle-mounted device or the portable device includes an illicitness determination unit determining, based on the detected magnetic field strength, whether the wireless communication is established through an illicit repeater.


    Access

    Download


    Export, share and cite



    Title :

    Vehicle system, portable device, and vehicle-mounted device


    Contributors:

    Publication date :

    2017-03-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G08C Übertragungssysteme für Messwerte, Regel-, Steuer- oder ähnliche Signale , TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS



    VEHICLE-MOUNTED COMMUNICATION SYSTEM, VEHICLE-MOUNTED DEVICE AND PORTABLE APPARATUS

    MIYAWAKI DAISUKE | European Patent Office | 2018

    Free access

    VEHICLE SYSTEM, PORTABLE MACHINE, AND VEHICLE-MOUNTED DEVICE

    KUSUMOTO TETSUYA / SAITOU TAKASHI / SAKAMOTO KOJI | European Patent Office | 2018

    Free access

    VEHICLE COMMUNICATION SYSTEM, VEHICLE-MOUNTED DEVICE, PORTABLE DEVICE, AND COMPUTER PROGRAM

    HAMADA YOSHIHIRO / MATSUOKA KENJI / KURATA HIROYUKI | European Patent Office | 2015

    Free access

    VEHICLE-MOUNTED COMMUNICATION SYSTEM AND PORTABLE DEVICE

    WATANABE AKIYO / OGAWA ATSUSHI | European Patent Office | 2016

    Free access

    Portable vehicle-mounted storage device

    JIANG HAO | European Patent Office | 2021

    Free access