Patent ID: 6906612
Filing Date: 2005-06-14
Classification: B60R,G07C

Abstract:
1. In a passive entry system for a vehicle, the passive entry system including a remote transceiver, a system for detecting a location of the remote transceiver relative to the vehicle comprising: an exterior vehicle antenna for use in transmitting a first signal for receipt by the remote transceiver; an interior vehicle antenna for use in transmitting a second signal for receipt by the remote transceiver; and a controller on board the remote transceiver for determining a signal strength of the first signal, determining a signal strength of the second signal, and determining whether the remote transceiver is located inside or outside the vehicle based on the signal strengths of the first and second signals; wherein the remote transceiver transmits a third signal for use in locking or unlocking a vehicle door based on the determination by the controller whether the remote transceiver is located inside or outside the vehicle.