Patents by Inventor Dave L. Vowles

Dave L. Vowles 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).

  • Optical contour detector and methods for making and using
    Patent number: 5278633
    Abstract: An optical contour detector (11) having a source of electromagnetic radiation (12) aimed at a contoured surface is provided. A first detector (13) and a second detector (14) are positioned near the contoured surface for detecting electromagnetic radiation reflected from a first portion of the surface. Outputs of the first detector (13) and the second detector (14) are differentially amplified to produce an output signal indicting when a change in contour or discontinuity in the surface is illuminated by the source of electromagnetic radiation (12).
    Type: Grant
    Filed: August 6, 1992
    Date of Patent: January 11, 1994
    Assignee: Motorola, Inc.
    Inventor: Dave L. Vowles