Patents by Inventor Arthur Uhlir, Jr.

Arthur Uhlir, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Interferometric lightning ranging system
    Patent number: 4972195
    Abstract: The lightning range system for determining distance between a lightning discharge and an airborne object includes a receiver on the airborne object adapted to receive electromagnetic radiation signals generated by a lightning discharge along both a direct and a surface reflected path. Signal processing apparatus is interconnected with the receiver for determining the difference in the time of arrival of the direct and reflected signals. A computer is provided to calculate the range of the lightning discharge from the difference in the time of arrival of the direct and reflected signals. In a preferred embodiment, the signal processing apparatus is digital and includes at least a 10-bit analog-to-digital converter with at least a 36 megahertz sampling rate.
    Type: Grant
    Filed: October 24, 1989
    Date of Patent: November 20, 1990
    Assignee: Airborne Research Associates
    Inventors: Ralph Markson, James W. Warwick, Arthur Uhlir, Jr.
  • Interferometeric lightning ranging system
    Patent number: 4801942
    Abstract: The lightning ranging system for determining distance between a lightning discharge and an airborne object includes a receiver on the airborne object adapted to receive electromagnetic radiation signals generated by a lightning discharge along both a direct and a surface reflected path. Signal processing apparatus is interconnected with the receiver for determining the difference in the time of arrival of the direct and reflected signals. A computer is provided to calculate the range of the lightning discharge from the difference in the time of arrival of the direct and reflected signals. In a preferred embodiment, the signal processing apparatus is digital and includes at least a 10-bit analog-to-digital converter with at least a 36 megahertz sampling rate.
    Type: Grant
    Filed: August 18, 1986
    Date of Patent: January 31, 1989
    Assignee: Airborne Research Associates, Inc.
    Inventors: Ralph Markson, James W. Warwick, Arthur Uhlir, Jr.