Appeal No. 1999-0479
Application No. 08/417,613
protecting a motor vehicle against use by third parties. The
device senses facial features of a person sitting in the
driver’s seat of the vehicle and compares these features with
stored image information. When correspondence is detected
between the facial features and the stored image information,
the device generates a driver authorization signal that
changes at least one vehicle component from a disabled state
in which starting of the vehicle is disabled to an enabled
state in which it is possible to start the vehicle. In the
device, the sensing of facial features is also carried out at
time intervals when the vehicle is being driven. The stored
image information is stored in coded form in an end-user key
unit. For a prescribed plurality of subsequent vehicle
starts, at least one component of the device can be kept in an
enabled state after the above-noted correspondence operation.
Claim 3 is illustrative of the claimed invention, and it
reads as follows:
3. Device for protecting a motor vehicle against use by
third parties comprising:
at least one vehicle component whose operation is
necessary to drive said vehicle, which vehicle component can
be adjusted by means of a driving authorization signal, from a
disabled state in which the starting of the vehicle is
2
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