System and method for key free access to a vehicle
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United States of America Patent
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Feb 28, 2012
Grant Date -
Mar 25, 2010
app pub date -
Sep 24, 2008
filing date -
Sep 24, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A system and method for unlocking a vehicle with a cell phone. Wireless signals are monitored from a cell phone. A signal is received from the cell phone. A distance between the cell phone and the vehicle is determined. Doors of the vehicle are unlocked in response to the cell phone nearing the vehicle. The doors of the vehicle are locked in response to the cell phone being further separated from the vehicle.
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