Multistage vehicle security system
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United States of America Patent
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-
May 10, 2005
Grant Date -
Nov 4, 2004
app pub date -
Apr 29, 2003
filing date -
Apr 29, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A multistage vehicle security system includes a transceiver that receives a first signal sent from a transponder and a controller that processes the first signal. The controller activates low level operational features of the vehicle if the signal is associated with an authorized transponder. The system also includes an entry sensor that detects the physical presence of a user. The transponder sends a second signal to the transceiver when the presence of the user is detected. The controller processes the second signal and activates midlevel operational features of the vehicle if the second signal is associated with the authorized transponder. Once the user is inside the vehicle, a sensor detects a biometric characteristic of the user. The user obtains access to one or more high level operational features of the vehicle if the detected biometric characteristic matches that of an authorized user.
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