Patents by Inventor Cesar L. Nino

Cesar L. Nino 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).

  • Method for modeling color halftones
    Patent number: 7173733
    Abstract: A method for modeling color halftones that reduces both the number of parameters and the number of measurements needed to characterize an inkjet color printer. The method is based on the eigenanalysis of sample reflectance data and a probabilistic analysis that considers light scattering on the paper substrate as a breakage process governed by a log-normal distribution. The method estimates the reflectance of a print color by characterizing colors as a multiplicative composition of primary color reflectances rather than as an additive mixture of primary and secondary color reflectances as suggested by the theory of Neugebaeur.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: February 6, 2007
    Assignee: University of Delaware
    Inventors: Cesar L. Nino, Gonzalo R. Arce
  • Method for modeling color halftones
    Publication number: 20040090640
    Abstract: A method for modeling color halftones that reduces both the number of parameters and the number of measurements needed to characterize an inkjet color printer. The method is based on the eigenanalysis of sample reflectance data and a probabilistic analysis that considers light scattering on the paper substrate as a breakage process governed by a log-normal distribution. The method estimates the reflectance of a print color by characterizing colors as a multiplicative composition of primary color reflectances rather than as an additive mixture of primary and secondary color reflectances as suggested by the theory of Neugebaeur.
    Type: Application
    Filed: November 7, 2002
    Publication date: May 13, 2004
    Inventors: Cesar L. Nino, Gonzalo R. Arce