Patents by Inventor Bryan S. Ly

Bryan S. Ly 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).

  • Calibration process for multi-die print cartridge
    Patent number: 8240807
    Abstract: One exemplary embodiment is a method that performs a calibration process for determining a number of spit and wipe operations to place each of multiple dies on a print cartridge in a stable state.
    Type: Grant
    Filed: May 6, 2009
    Date of Patent: August 14, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Behnam Bastani, Alejandro Campillo Agusti, Bryan S. Ly
  • Calibration Process for Multi-Die Print Cartridge
    Publication number: 20100283809
    Abstract: One exemplary embodiment is a method that performs a calibration process for determining a number of spit and wipe operations to place each of multiple dies on a print cartridge in a stable state.
    Type: Application
    Filed: May 6, 2009
    Publication date: November 11, 2010
    Inventors: Behnam Bastani, Alejandro Campillo Agusti, Bryan S. Ly
  • DENSITY ERROR CORRECTION
    Publication number: 20100277530
    Abstract: A method for density error correction is disclosed. In one embodiment, the method includes a) calculating an average density error for at least one row of an image considering density errors for printhead elements employed to print the at least one row, and a number of passes that the printhead elements will utilize to print the at least one row, b) calculating a density error correction value for the at least one row considering the average density error, and c) applying the density error correction value to adjust ink flow from the printhead elements while printing the at least one row.
    Type: Application
    Filed: April 30, 2009
    Publication date: November 4, 2010
    Inventors: Behnam Bastani, David H. Donovan, Bryan S. Ly