Patents by Inventor Raz Maoz

Raz Maoz 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).

  • Maintaining optical density of images produced by a printing device
    Patent number: 8511776
    Abstract: A method for maintaining the optical density of a printing device includes, with a printhead module of the printing device, printing a color region onto a first test page, the color region including a plurality of sub-regions, each of the sub-regions being printed with a different drive voltage; measuring an optical density of each of the sub-regions printed onto the first test page; determining a response curve based on a relationship between the optical density of the sub-regions and the different drive voltages used to print the sub-regions; and, using the response curve, determining a target drive voltage for the printhead module which will cause the printhead module to print at a target optical density.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: August 20, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ron Tuttnauer, Raz Maoz
  • MAINTAINING OPTICAL DENSITY OF IMAGES PRODUCED BY A PRINTING DEVICE
    Publication number: 20120007905
    Abstract: A method for maintaining the optical density of a printing device includes, with a printhead module of the printing device, printing a color region onto a first test page, the color region comprising a plurality of sub-regions, each of the sub-regions being printed with a different drive voltage; measuring an optical density of each of the sub-regions printed onto the first test page; determining a response curve based on a relationship between the optical density of the sub-regions and the different drive voltages used to print the sub-regions; and, using the response curve, determining a target drive voltage for the printhead module which will cause the printhead module to print at a target optical density.
    Type: Application
    Filed: July 12, 2010
    Publication date: January 12, 2012
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Ron Tuttnauer, Raz Maoz