Invention Grant
US08126450B2 System and method for key free access to a vehicle 有权
用于钥匙自由接入车辆的系统和方法

System and method for key free access to a vehicle
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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