Patents by Inventor Joseph P. Tallie

Joseph P. Tallie 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).

  • Patent number: 5642197
    Abstract: A digital color scanner capable of high color quality includes a light source, a photosensor, a first color filter, a second color filter, a third color filter, and a fourth color filter. The first, second, and third color filters are positioned in an optical path between the light source and the photosensor so as to enable the photosensor to produce a first, second, and third set of color image data during a first calibration scan. The fourth color filter is moved into and out of the optical path between the light source and the photosensor so as to enable the photosensor to produce a fourth, fifth, and sixth set of color image data during a second calibration scan. A circuit produces a set of color correction values from the first, second, third, fourth, fifth, and sixth sets of color image data.
    Type: Grant
    Filed: September 27, 1995
    Date of Patent: June 24, 1997
    Assignee: Xerox Corporation
    Inventors: Richard H. Tuhro, Joseph P. Tallie