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Motor vehicle display device, motor vehicle electronic system, motor vehicle, method for displaying data and a computer program product

  • US 8,812,842 B2
  • Filed: 11/04/2009
  • Issued: 08/19/2014
  • Est. Priority Date: 11/18/2008
  • Status: Active Grant
First Claim
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1. A motor vehicle display apparatus having an electronic appliance configured for mounting in a motor vehicle, the electronic appliance comprising:

  • a first memory area for storing data, wherein the comprises motor vehicle information;

    a second memory area for storing at least one first certificate;

    a first interface for receiving a first signal and a signature for the first signal from a transmitter external to the motor vehicle;

    a validity checking module, the validity checking module capable of checking the validity of the signature of the first signal using the first certificate;

    a signal generation module, the signal generation module capable of accessing data from the first memory area in response to the first signal and generating a second signal carrying a representation of the accessed data;

    a display actuating module responsive to the second signal, the display actuating module capable of actuating a display to visually output the representation of the accessed data;

    a fourth memory area for storing a motor vehicle identifier; and

    a tag verification module;

    wherein the second signal is generated and/or output only if the signature is valid;

    wherein the motor vehicle identifier explicitly identifies a motor vehicle with which the motor vehicle display apparatus is associated;

    wherein the fourth memory area is a protected memory area;

    wherein the first interface is designed to receive a message;

    wherein the message contains at least the first signal, a tag and the signature of the first signal and/or of the tag;

    wherein the tag verification module is capable of checking whether the tag matches the motor vehicle identifier stored in the fourth memory area andwherein a prerequisite for the generation and/or output of the second signal is that the tag and the motor vehicle identifier match.

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