Patents Assigned to Xtero Datacom Inc.
  • Ultrasonic fuel level monitoring device
    Patent number: 7287425
    Abstract: The invention describes a method of altering the transmitted frequency used in an ultrasonic ranging system for liquid level measurement in a fuel tank. The frequency agility of the system is an important component of performing liquid level measurement in an enclosed vessel.
    Type: Grant
    Filed: May 16, 2005
    Date of Patent: October 30, 2007
    Assignee: Xtero Datacom Inc.
    Inventor: Peter John Lagergren
  • Method of exciting a piezoelectric crystal
    Patent number: 7245059
    Abstract: The invention describes the use of an electrical pulse that is a single square wave to excite a piezoelectric crystal. This pulse is applied alternately to either side of the crystal at twice the nominal resonant frequency of the crystal. This method provides a significant increase in net drive power to the crystal without the need to provide a sine wave excitation of plus and minus voltage to the crystal.
    Type: Grant
    Filed: May 16, 2005
    Date of Patent: July 17, 2007
    Assignee: Xtero Datacom Inc.
    Inventors: Peter John Lagergren, Steven Scott Kazemir