Patents by Inventor Edward Siebert

Edward Siebert 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 direction sensor having gray code mask spaced from a plurality of interdigitated detectors
    Patent number: 4857721
    Abstract: Apparatus for detecting and determining the direction of arrival of optical radiation. The apparatus includes a first mask having one or more slit apertures, a binary encoding mask which combines the functions of angle sensing and digitizing using a so-called gray encoding scheme, and interdigitated detector(s) to produce differential electrical signals, and output processing electronics for providing a digital code or word corresponding to the angle-of-arrival of the incident radiation.
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: August 15, 1989
    Assignee: The Perkin-Elmer Corporation
    Inventors: David S. Dunavan, Rene Abreu, Stephen Messelt, Edward Siebert