A secure vehicle access system comprises a vehicle and a key associated with the vehicle. The key comprises: a radio frequency, RF, key transceiver configured to: broadcast at least one signal; and listen for an acknowledgement message from the vehicle. The vehicle comprises: a radio frequency, RF, vehicle transceiver configured to: listen for the at least one broadcast signal from the key; and in response thereto, transmit an acknowledgement message back to the key to establish a communication link between the vehicle and the key. The key further comprises a ranging circuit configured to perform a distance determination between the vehicle and the key, following the establishment of the communication link, to determine whether to allow access to the vehicle.


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    Title :

    Secure vehicle access system, key, vehicle and method therefor


    Contributors:

    Publication date :

    2019-03-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H04M TELEPHONIC COMMUNICATION , Fernsprechverkehr / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G07C TIME OR ATTENDANCE REGISTERS , Zeit- oder Anwesenheitskontrollgeräte / H04B TRANSMISSION , Übertragung



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