METHOD AND DEVICE FOR PROGRAMMING A PLURALITY OF KEYS TO AN AUTHORISATION DEVICE OF A VEHICLE
A method and apparatus teach a plurality of keys to an authorization device in a vehicle. The keys that are in a reception range of a transmission unit of the authorization device receive a test signal from the authorization device. The respective key ascertains a key-specific time window from at le...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | A method and apparatus teach a plurality of keys to an authorization device in a vehicle. The keys that are in a reception range of a transmission unit of the authorization device receive a test signal from the authorization device. The respective key ascertains a key-specific time window from at least one signal parameter of the test signal that is dependent on the physical location of the key, during which the respective key transmits a response signal that can be received by the transmission unit and recorded by the authorization device. |
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