Patents by Inventor Stuart Frederick Ring

Stuart Frederick Ring 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).

  • Digital color system and method which provides a visual match across different input and output viewing conditions
    Patent number: 5754184
    Abstract: A color management system that converts or transforms color signals between device dependent color spaces and a device-independent space using reference image viewing conditions for the device-independent space. A device transform converts input color signals of an input image in an input space into device-independent color signals and a visual adaption transform converts the device-independent input color signals into device-independent signals that take into account the input viewing conditions, the reference viewing conditions and adaption characteristics of the human visual system to the standard viewing conditions. This provides intermediate signals which represent device independent corresponding colorimetric values that would be required to visually match the appearance of the input image, as seen in its input viewing conditions under the defined reference viewing conditions of the device independent space.
    Type: Grant
    Filed: January 6, 1993
    Date of Patent: May 19, 1998
    Assignee: Eastman Kodak Company
    Inventors: Stuart Frederick Ring, Edward Joseph Giorgianni