Patents by Inventor CheeGreg Chen

CheeGreg Chen 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).

  • Angle sensor using a multi-pixel optical device
    Patent number: 5900930
    Abstract: An angle sensor for detecting the angular position of a rotating body. The angle sensor includes a plurality of digital patterns positioned on a surface that rotates with a rotating body. A source of light illuminates the patterns, and a multi-pixel optical device receives light from the patterns and converts the light into electrical signals. A processing circuit receives the electrical signals and identifies the illuminated patterns.
    Type: Grant
    Filed: October 21, 1997
    Date of Patent: May 4, 1999
    Assignee: Eaton Corporation
    Inventors: Marc R. Simon, CheeGreg Chen, Zeyad M. Almajed, Roger J. Briggs