Method and apparatus for access and/or starting verification
First Claim
1. A method for access or starting verification for a vehicle using a mobile identification encoder and at least two antennas located in or on the vehicle at different locations, comprising:
- the antennas emitting electromagnetic signals at alterable times, wherein the electromagnetic signals are emitted in transmission blocks having alterable specific properties and wherein a plurality of transmission blocks are strung together to form a communication message in which each transmission block adopts an alterable position in time,the identification encoder receiving the electromagnetic signals emitted by the antennas and processing them to generate a response signal, andaltering at least one of the times at which the individual antennas are actuated, the specific properties of the individual transmission blocks, and the position of the individual transmission blocks in time in the communication message in accordance with a cryptographical method.
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Abstract
A method for access or starting verification for a vehicle using a mobile identification encoder and at least two antennas located in or on the vehicle at different locations includes: the antennas emitting electromagnetic signals at alterable times, wherein the electromagnetic signals are emitted in transmission blocks having alterable specific properties and wherein a plurality of transmission blocks are strung together to form a communication message in which each transmission block adopts an alterable position in time, the identification encoder receiving the electromagnetic signals emitted by the antennas and processing them to generate a response signal, and altering at least one of the times at which the individual antennas are actuated, the specific properties of the individual transmission blocks, and the position of the individual transmission blocks in time in the communication message in accordance with a cryptographical method.
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Citations
13 Claims
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1. A method for access or starting verification for a vehicle using a mobile identification encoder and at least two antennas located in or on the vehicle at different locations, comprising:
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the antennas emitting electromagnetic signals at alterable times, wherein the electromagnetic signals are emitted in transmission blocks having alterable specific properties and wherein a plurality of transmission blocks are strung together to form a communication message in which each transmission block adopts an alterable position in time, the identification encoder receiving the electromagnetic signals emitted by the antennas and processing them to generate a response signal, and altering at least one of the times at which the individual antennas are actuated, the specific properties of the individual transmission blocks, and the position of the individual transmission blocks in time in the communication message in accordance with a cryptographical method. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for access and/or starting verification for a vehicle, comprising:
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at least two antennas located in or on the vehicle at different locations and configured to emit electromagnetic signals in transmission blocks having alterable specific properties, wherein a plurality of transmission blocks are strung together to form a communication message in which each transmission block adopts an alterable position in time, a mobile identification encoder configured to receive and process the electromagnetic signals emitted by the antennas, wherein the processing includes the generation of a response signal, and transmission and evaluation unit configured to alter at least one of the times at which the individual antennas are actuated, the specific properties of the individual transmission blocks, and the position of the individual transmission blocks in time in the communication message in accordance with a cryptographical method. - View Dependent Claims (10, 11, 12, 13)
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Specification