Patents Assigned to GTE Products Corp. and GTE Laboratories, Inc.
  • Coded surface acoustical wave (saw) motor vehicle security device
    Patent number: 4980680
    Abstract: A theft resistant security system for motor vehicles. The system has a receptacle with a coupling coil. A surface acoustical wave device associated with the receptacle for relative movement thereto is also provided. The SAW device has a code and its own coupling coil for interaction with the receptacle coupling coil. A testing mechanism is connected to the receptacle for determining whether the code of the SAW device is valid for operation of the motor vehicle.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: December 25, 1990
    Assignee: GTE Products Corp. and GTE Laboratories, Inc.
    Inventors: William C. Knoll, James R. McColl