Patent ID: 8319605
Filing Date: 2012-11-27
Classification: G01C,G01S,H01Q,H04B,H04W

Abstract:
1. A remote vehicle control system, comprising: a base data processor and transceiver unit (base TPU) mounted in a vehicle; a first substantially omni-directional antenna mounted to the vehicle and operatively coupled to the base TPU; a mobile device, the mobile device having a data processor and transceiver unit (mobile TPU), a second antenna connected to the mobile TPU, and a display operatively connected to the mobile TPU; wherein the base TPU and mobile device communicate wirelessly with one another via an IEEE 802.15.4 communication protocol and include means for estimating a range therebetween; third and fourth antennas mounted to the vehicle that are tuned to communicate over the IEEE 802.15.4 bandwidth used for wirelessly communicating between the base TPU and the mobile device, wherein the third antenna has an operable radiation pattern extending proximate to a driver's side of the vehicle but substantially not to an opposite side thereof and the fourth antenna has an operable radiation pattern extending proximate to the opposite side of the vehicle but substantially not to the driver's side thereof; wherein the base TPU enables driver or passenger passive keyless entry functions by determining the range between the vehicle to the mobile device by utilizing the first antenna and, in an event such range is less than a threshold distance, detecting a presence of the mobile device proximate to the vehicle driver side or the vehicle opposite side by an ability of the mobile device to communicate via the third and fourth antennas or a quality of such communication.