Method for authenticating a spare key for using a vehicle

Details Method for authenticating a spare key for using a vehicle Method for authenticating a spare key for using a vehicle

2006-02-21

2006-02-21

Horabik, Michael (Department: 2635)

Communications: electrical

Selective

Intelligence comparison for controlling

C340S005810, C340S005820, C340S005830, C340S005840, C340S005850, C340S005230, C380S262000

Reexamination Certificate

active

07002450

ABSTRACT:
In a method for authenticating a spare key for use with a vehicle in the absence of the regular key, the spare key is provided with an identification number that is transmitted to, and checked by, a central station. The spare key is authenticated by an authorization signal sent from the central station to the vehicle.

REFERENCES:
patent: 5838251 (1998-11-01), Brinkmeyer et al.
patent: 6329901 (2001-12-01), Brinkmeyer et al.
patent: 6337912 (2002-01-01), Buhr et al.
patent: 6374354 (2002-04-01), Walmsley et al.
patent: 6847286 (2005-01-01), Bartz

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