×

Passive entry cell phone and method and system therefor

  • US 9,241,235 B2
  • Filed: 03/14/2013
  • Issued: 01/19/2016
  • Est. Priority Date: 03/14/2013
  • Status: Active Grant
First Claim
Patent Images

1. A system for a vehicle, comprising:

  • a BLUETOOTH®

    receiver configured to be plugged into a telematics port of a vehicle and connected with an electronic system of the vehicle, wherein the electronic system of the vehicle includes a BLUETOOTH®

    passive entry system; and

    a phone including a long-range radio frequency (RF) transceiver configured to transmit signals to and receive signals from the electronic system of the vehicle through a cellular network and a BLUETOOTH®

    transmitter configured to communicate with the BLUETOOTH®

    receiver in the vehicle within a predetermined range,wherein the predetermined range is a distance for dock lock and unlock in the BLUETOOTH®

    passive entry system and the predetermined range is calibrated using received signal strength indication (RSSI), andwhen the phone is within the predetermined range, a first transmission provided from the phone via BLUETOOTH®

    is encrypted, the first transmission including the phone'"'"'s ID, the ID being stored in a memory of a control unit of the vehicle,when a second transmission is provided from the phone via BLUETOOTH®

    , the second transmission is encrypted and includes the ID and a vehicle command, andwhen the second transmission is received, the ID is compared to the ID stored in the memory and if there is a match, the vehicle command is communicated to the control unit.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×