Patents by Inventor Stanley D. Brown

Stanley D. Brown 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).

  • Method for improved range accuracy in laser range finders
    Patent number: 6842231
    Abstract: The range of a threshold detection laser range finder is increased by adding a low cost Analog-to-Digital converter and sampling a portion of a reflected laser pulse. The slope of the sampled reflected laser pulse is calculated and the shape of the reflected laser pulse is inferred from known shapes. The center point of the inferred shape is approximated using a lookup table, and a correction value is calculated based on the center point of the inferred shape and the sampled portion. The correction value is applied to an uncorrected range estimate to arrive at an accurate estimate of the range of the object of interest.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: January 11, 2005
    Assignee: Raytheon Company
    Inventors: Charles E. Nourrcier, Karen D. Wirtz, Stanley D. Brown, Colin N. Sakamoto, Angela K. Martinez, Scott C. Johnson
  • Method for improved range accuracy in laser range finders
    Publication number: 20040066501
    Abstract: The range of a threshold detection laser range finder is increased by adding a low cost Analog-to-Digital converter and sampling a portion of a reflected laser pulse. The slope of the sampled reflected laser pulse is calculated and the shape of the reflected laser pulse is inferred from known shapes. The center point of the inferred shape is approximated using a lookup table, and a correction value is calculated based on the center point of the inferred shape and the sampled portion. The correction value is applied to an uncorrected range estimate to arrive at an accurate estimate of the range of the object of interest.
    Type: Application
    Filed: September 30, 2002
    Publication date: April 8, 2004
    Applicant: RAYTHEON COMPANY
    Inventors: Charles E. Nourrcier, Karen D. Wirtz, Stanley D. Brown, Colin N. Sakamoto, Angela K. Martinez, Scott C. Johnson