A radio key (2) for an access system of a motor vehicle, having a reception circuit (10) having at least three LF reception coils for low-frequency signal reception that are oriented in different spatial directions. The reception circuit (10) has a central control circuit (11) coupled to it, wherein the control circuit can use a microcontroller to adopt different operating states, at least one operating state of which is an idle state and one operating state of which is an active operating state. The reception circuit (10) is designed to wake the control circuit (11) from the reduced-power idle state when a signal is received via the LF reception coils. The central control circuit (11) having the microcontroller is designed to actuate the reception circuit, after being woken from the idle state, for forwarding the undecoded data stream, wherein the microcontroller decodes the undecoded data stream by executing a program externally to the reception circuit.


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    Title :

    FAHRZEUGSCHLÜSSEL FÜR PASSIVE ZUGANGSSYSTEME UND ZUGEHÖRIGES VERFAHREN


    Additional title:

    VEHICLE KEY FOR PASSIVE ENTRY SYSTEMS AND METHOD THEREOF
    CLÉ DE VÉHICULE POUR SYSTÈME D'ACCÈS PASSIF ET PROCÉDÉ CORRESPONDANT


    Contributors:

    Publication date :

    2020-09-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    German


    Classification :

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



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    ZILLER BORIS / SKALETZ THOMAS | European Patent Office | 2017

    Free access

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    Free access

    FAHRZEUGSCHLÜSSEL FÜR PASSIVE ZUGANGSSYSTEME UND ZUGEHÖRIGES VERFAHREN

    ZILLER BORIS / SKALETZ THOMAS | European Patent Office | 2017

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